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-rw-r--r--fs/9p/acl.c69
-rw-r--r--fs/9p/acl.h10
-rw-r--r--fs/9p/vfs_inode_dotl.c13
-rw-r--r--fs/Makefile1
-rw-r--r--fs/anon_inodes.c2
-rw-r--r--fs/block_dev.c39
-rw-r--r--fs/btrfs/acl.c63
-rw-r--r--fs/btrfs/ctree.h4
-rw-r--r--fs/btrfs/delayed-inode.h2
-rw-r--r--fs/btrfs/extent_io.c2
-rw-r--r--fs/btrfs/inode.c10
-rw-r--r--fs/ceph/debugfs.c2
-rw-r--r--fs/ceph/dir.c116
-rw-r--r--fs/ceph/export.c24
-rw-r--r--fs/ceph/file.c61
-rw-r--r--fs/ceph/inode.c48
-rw-r--r--fs/ceph/ioctl.c15
-rw-r--r--fs/ceph/ioctl.h1
-rw-r--r--fs/ceph/mds_client.c56
-rw-r--r--fs/ceph/mds_client.h3
-rw-r--r--fs/ceph/snap.c25
-rw-r--r--fs/ceph/super.c7
-rw-r--r--fs/ceph/super.h20
-rw-r--r--fs/ceph/xattr.c8
-rw-r--r--fs/cifs/cifsencrypt.c110
-rw-r--r--fs/cifs/cifsglob.h2
-rw-r--r--fs/cifs/dir.c7
-rw-r--r--fs/cifs/link.c8
-rw-r--r--fs/cifs/readdir.c427
-rw-r--r--fs/cifs/smbencrypt.c8
-rw-r--r--fs/compat.c246
-rw-r--r--fs/compat_ioctl.c5
-rw-r--r--fs/direct-io.c2
-rw-r--r--fs/dlm/plock.c10
-rw-r--r--fs/ecryptfs/keystore.c2
-rw-r--r--fs/eventpoll.c2
-rw-r--r--fs/exec.c60
-rw-r--r--fs/ext2/acl.c63
-rw-r--r--fs/ext2/acl.h4
-rw-r--r--fs/ext2/file.c2
-rw-r--r--fs/ext2/namei.c4
-rw-r--r--fs/ext2/xattr.c10
-rw-r--r--fs/ext3/acl.c94
-rw-r--r--fs/ext3/acl.h4
-rw-r--r--fs/ext3/balloc.c38
-rw-r--r--fs/ext3/file.c3
-rw-r--r--fs/ext3/fsync.c11
-rw-r--r--fs/ext3/ialloc.c4
-rw-r--r--fs/ext3/inode.c193
-rw-r--r--fs/ext3/ioctl.c4
-rw-r--r--fs/ext3/namei.c11
-rw-r--r--fs/ext3/super.c13
-rw-r--r--fs/ext3/xattr.c12
-rw-r--r--fs/ext4/acl.c95
-rw-r--r--fs/ext4/acl.h4
-rw-r--r--fs/ext4/file.c2
-rw-r--r--fs/ext4/inode.c4
-rw-r--r--fs/ext4/namei.c4
-rw-r--r--fs/file_table.c2
-rw-r--r--fs/fs-writeback.c373
-rw-r--r--fs/fuse/file.c2
-rw-r--r--fs/generic_acl.c62
-rw-r--r--fs/gfs2/acl.c75
-rw-r--r--fs/gfs2/acl.h2
-rw-r--r--fs/gfs2/inode.c6
-rw-r--r--fs/gfs2/main.c2
-rw-r--r--fs/hugetlbfs/inode.c3
-rw-r--r--fs/inode.c5
-rw-r--r--fs/jbd/checkpoint.c37
-rw-r--r--fs/jbd/commit.c57
-rw-r--r--fs/jbd/journal.c99
-rw-r--r--fs/jbd/transaction.c83
-rw-r--r--fs/jffs2/acl.c49
-rw-r--r--fs/jffs2/acl.h6
-rw-r--r--fs/jffs2/dir.c2
-rw-r--r--fs/jffs2/file.c2
-rw-r--r--fs/jffs2/fs.c2
-rw-r--r--fs/jffs2/os-linux.h2
-rw-r--r--fs/jffs2/readinode.c2
-rw-r--r--fs/jffs2/symlink.c2
-rw-r--r--fs/jfs/acl.c75
-rw-r--r--fs/jfs/file.c2
-rw-r--r--fs/jfs/jfs_acl.h2
-rw-r--r--fs/jfs/namei.c2
-rw-r--r--fs/lockd/svclock.c8
-rw-r--r--fs/locks.c75
-rw-r--r--fs/namei.c58
-rw-r--r--fs/namespace.c21
-rw-r--r--fs/nfs/cache_lib.h2
-rw-r--r--fs/nfs/direct.c2
-rw-r--r--fs/nfs/idmap.c7
-rw-r--r--fs/nfs/nfs3acl.c10
-rw-r--r--fs/nfs/write.c3
-rw-r--r--fs/nfsctl.c100
-rw-r--r--fs/nfsd/Kconfig12
-rw-r--r--fs/nfsd/cache.h2
-rw-r--r--fs/nfsd/export.c418
-rw-r--r--fs/nfsd/lockd.c2
-rw-r--r--fs/nfsd/nfs4proc.c58
-rw-r--r--fs/nfsd/nfs4state.c265
-rw-r--r--fs/nfsd/nfs4xdr.c144
-rw-r--r--fs/nfsd/nfscache.c3
-rw-r--r--fs/nfsd/nfsctl.c343
-rw-r--r--fs/nfsd/nfssvc.c33
-rw-r--r--fs/nfsd/state.h1
-rw-r--r--fs/nfsd/xdr4.h30
-rw-r--r--fs/notify/group.c2
-rw-r--r--fs/notify/inode_mark.c2
-rw-r--r--fs/notify/mark.c2
-rw-r--r--fs/notify/notification.c2
-rw-r--r--fs/notify/vfsmount_mark.c2
-rw-r--r--fs/ntfs/inode.h2
-rw-r--r--fs/ocfs2/acl.c77
-rw-r--r--fs/ocfs2/acl.h2
-rw-r--r--fs/ocfs2/file.c4
-rw-r--r--fs/ocfs2/move_extents.c1
-rw-r--r--fs/ocfs2/namei.c2
-rw-r--r--fs/partitions/check.c12
-rw-r--r--fs/pipe.c2
-rw-r--r--fs/posix_acl.c50
-rw-r--r--fs/proc/base.c23
-rw-r--r--fs/proc/inode.c2
-rw-r--r--fs/proc/meminfo.c2
-rw-r--r--fs/reiserfs/bitmap.c8
-rw-r--r--fs/reiserfs/file.c2
-rw-r--r--fs/reiserfs/inode.c5
-rw-r--r--fs/reiserfs/journal.c13
-rw-r--r--fs/reiserfs/namei.c6
-rw-r--r--fs/reiserfs/resize.c6
-rw-r--r--fs/reiserfs/xattr.c27
-rw-r--r--fs/reiserfs/xattr_acl.c71
-rw-r--r--fs/splice.c4
-rw-r--r--fs/squashfs/Kconfig14
-rw-r--r--fs/squashfs/Makefile3
-rw-r--r--fs/squashfs/decompressor.c6
-rw-r--r--fs/squashfs/decompressor.h4
-rw-r--r--fs/squashfs/squashfs.h3
-rw-r--r--fs/super.c4
-rw-r--r--fs/xfs/linux-2.6/xfs_acl.c80
-rw-r--r--fs/xfs/linux-2.6/xfs_file.c5
-rw-r--r--fs/xfs/linux-2.6/xfs_iops.c14
-rw-r--r--fs/xfs/linux-2.6/xfs_trace.h2
-rw-r--r--fs/xfs/xfs_acl.h2
-rw-r--r--fs/xfs/xfs_dir2_node.c2
144 files changed, 2155 insertions, 2937 deletions
diff --git a/fs/9p/acl.c b/fs/9p/acl.c
index e98f56d3787..e9cb57f0754 100644
--- a/fs/9p/acl.c
+++ b/fs/9p/acl.c
@@ -96,14 +96,10 @@ static struct posix_acl *v9fs_get_cached_acl(struct inode *inode, int type)
return acl;
}
-int v9fs_check_acl(struct inode *inode, int mask)
+struct posix_acl *v9fs_iop_get_acl(struct inode *inode, int type)
{
- struct posix_acl *acl;
struct v9fs_session_info *v9ses;
- if (mask & MAY_NOT_BLOCK)
- return -ECHILD;
-
v9ses = v9fs_inode2v9ses(inode);
if (((v9ses->flags & V9FS_ACCESS_MASK) != V9FS_ACCESS_CLIENT) ||
((v9ses->flags & V9FS_ACL_MASK) != V9FS_POSIX_ACL)) {
@@ -111,18 +107,10 @@ int v9fs_check_acl(struct inode *inode, int mask)
* On access = client and acl = on mode get the acl
* values from the server
*/
- return 0;
+ return NULL;
}
- acl = v9fs_get_cached_acl(inode, ACL_TYPE_ACCESS);
+ return v9fs_get_cached_acl(inode, type);
- if (IS_ERR(acl))
- return PTR_ERR(acl);
- if (acl) {
- int error = posix_acl_permission(inode, acl, mask);
- posix_acl_release(acl);
- return error;
- }
- return -EAGAIN;
}
static int v9fs_set_acl(struct dentry *dentry, int type, struct posix_acl *acl)
@@ -165,32 +153,32 @@ err_free_out:
int v9fs_acl_chmod(struct dentry *dentry)
{
int retval = 0;
- struct posix_acl *acl, *clone;
+ struct posix_acl *acl;
struct inode *inode = dentry->d_inode;
if (S_ISLNK(inode->i_mode))
return -EOPNOTSUPP;
acl = v9fs_get_cached_acl(inode, ACL_TYPE_ACCESS);
if (acl) {
- clone = posix_acl_clone(acl, GFP_KERNEL);
+ retval = posix_acl_chmod(&acl, GFP_KERNEL, inode->i_mode);
+ if (retval)
+ return retval;
+ retval = v9fs_set_acl(dentry, ACL_TYPE_ACCESS, acl);
posix_acl_release(acl);
- if (!clone)
- return -ENOMEM;
- retval = posix_acl_chmod_masq(clone, inode->i_mode);
- if (!retval)
- retval = v9fs_set_acl(dentry, ACL_TYPE_ACCESS, clone);
- posix_acl_release(clone);
}
return retval;
}
int v9fs_set_create_acl(struct dentry *dentry,
- struct posix_acl *dpacl, struct posix_acl *pacl)
+ struct posix_acl **dpacl, struct posix_acl **pacl)
{
- v9fs_set_acl(dentry, ACL_TYPE_DEFAULT, dpacl);
- v9fs_set_acl(dentry, ACL_TYPE_ACCESS, pacl);
- posix_acl_release(dpacl);
- posix_acl_release(pacl);
+ if (dentry) {
+ v9fs_set_acl(dentry, ACL_TYPE_DEFAULT, *dpacl);
+ v9fs_set_acl(dentry, ACL_TYPE_ACCESS, *pacl);
+ }
+ posix_acl_release(*dpacl);
+ posix_acl_release(*pacl);
+ *dpacl = *pacl = NULL;
return 0;
}
@@ -209,29 +197,18 @@ int v9fs_acl_mode(struct inode *dir, mode_t *modep,
mode &= ~current_umask();
}
if (acl) {
- struct posix_acl *clone;
-
if (S_ISDIR(mode))
- *dpacl = acl;
- clone = posix_acl_clone(acl, GFP_NOFS);
- retval = -ENOMEM;
- if (!clone)
- goto cleanup;
-
- retval = posix_acl_create_masq(clone, &mode);
- if (retval < 0) {
- posix_acl_release(clone);
- goto cleanup;
- }
+ *dpacl = posix_acl_dup(acl);
+ retval = posix_acl_create(&acl, GFP_NOFS, &mode);
+ if (retval < 0)
+ return retval;
if (retval > 0)
- *pacl = clone;
+ *pacl = acl;
+ else
+ posix_acl_release(acl);
}
*modep = mode;
return 0;
-cleanup:
- posix_acl_release(acl);
- return retval;
-
}
static int v9fs_remote_get_acl(struct dentry *dentry, const char *name,
diff --git a/fs/9p/acl.h b/fs/9p/acl.h
index 59e18c2e8c7..ddb7ae19d97 100644
--- a/fs/9p/acl.h
+++ b/fs/9p/acl.h
@@ -16,14 +16,14 @@
#ifdef CONFIG_9P_FS_POSIX_ACL
extern int v9fs_get_acl(struct inode *, struct p9_fid *);
-extern int v9fs_check_acl(struct inode *inode, int mask);
+extern struct posix_acl *v9fs_iop_get_acl(struct inode *inode, int type);
extern int v9fs_acl_chmod(struct dentry *);
extern int v9fs_set_create_acl(struct dentry *,
- struct posix_acl *, struct posix_acl *);
+ struct posix_acl **, struct posix_acl **);
extern int v9fs_acl_mode(struct inode *dir, mode_t *modep,
struct posix_acl **dpacl, struct posix_acl **pacl);
#else
-#define v9fs_check_acl NULL
+#define v9fs_iop_get_acl NULL
static inline int v9fs_get_acl(struct inode *inode, struct p9_fid *fid)
{
return 0;
@@ -33,8 +33,8 @@ static inline int v9fs_acl_chmod(struct dentry *dentry)
return 0;
}
static inline int v9fs_set_create_acl(struct dentry *dentry,
- struct posix_acl *dpacl,
- struct posix_acl *pacl)
+ struct posix_acl **dpacl,
+ struct posix_acl **pacl)
{
return 0;
}
diff --git a/fs/9p/vfs_inode_dotl.c b/fs/9p/vfs_inode_dotl.c
index 276f4a69ecd..9a26dce5a99 100644
--- a/fs/9p/vfs_inode_dotl.c
+++ b/fs/9p/vfs_inode_dotl.c
@@ -287,7 +287,7 @@ v9fs_vfs_create_dotl(struct inode *dir, struct dentry *dentry, int omode,
goto error;
/* Now set the ACL based on the default value */
- v9fs_set_create_acl(dentry, dacl, pacl);
+ v9fs_set_create_acl(dentry, &dacl, &pacl);
v9inode = V9FS_I(inode);
mutex_lock(&v9inode->v_mutex);
@@ -328,6 +328,7 @@ error:
err_clunk_old_fid:
if (ofid)
p9_client_clunk(ofid);
+ v9fs_set_create_acl(NULL, &dacl, &pacl);
return err;
}
@@ -421,12 +422,13 @@ static int v9fs_vfs_mkdir_dotl(struct inode *dir,
d_instantiate(dentry, inode);
}
/* Now set the ACL based on the default value */
- v9fs_set_create_acl(dentry, dacl, pacl);
+ v9fs_set_create_acl(dentry, &dacl, &pacl);
inc_nlink(dir);
v9fs_invalidate_inode_attr(dir);
error:
if (fid)
p9_client_clunk(fid);
+ v9fs_set_create_acl(NULL, &dacl, &pacl);
return err;
}
@@ -826,10 +828,11 @@ v9fs_vfs_mknod_dotl(struct inode *dir, struct dentry *dentry, int omode,
d_instantiate(dentry, inode);
}
/* Now set the ACL based on the default value */
- v9fs_set_create_acl(dentry, dacl, pacl);
+ v9fs_set_create_acl(dentry, &dacl, &pacl);
error:
if (fid)
p9_client_clunk(fid);
+ v9fs_set_create_acl(NULL, &dacl, &pacl);
return err;
}
@@ -914,7 +917,7 @@ const struct inode_operations v9fs_dir_inode_operations_dotl = {
.getxattr = generic_getxattr,
.removexattr = generic_removexattr,
.listxattr = v9fs_listxattr,
- .check_acl = v9fs_check_acl,
+ .get_acl = v9fs_iop_get_acl,
};
const struct inode_operations v9fs_file_inode_operations_dotl = {
@@ -924,7 +927,7 @@ const struct inode_operations v9fs_file_inode_operations_dotl = {
.getxattr = generic_getxattr,
.removexattr = generic_removexattr,
.listxattr = v9fs_listxattr,
- .check_acl = v9fs_check_acl,
+ .get_acl = v9fs_iop_get_acl,
};
const struct inode_operations v9fs_symlink_inode_operations_dotl = {
diff --git a/fs/Makefile b/fs/Makefile
index fb68c2b8cf8..afc109691a9 100644
--- a/fs/Makefile
+++ b/fs/Makefile
@@ -29,7 +29,6 @@ obj-$(CONFIG_EVENTFD) += eventfd.o
obj-$(CONFIG_AIO) += aio.o
obj-$(CONFIG_FILE_LOCKING) += locks.o
obj-$(CONFIG_COMPAT) += compat.o compat_ioctl.o
-obj-$(CONFIG_NFSD_DEPRECATED) += nfsctl.o
obj-$(CONFIG_BINFMT_AOUT) += binfmt_aout.o
obj-$(CONFIG_BINFMT_EM86) += binfmt_em86.o
obj-$(CONFIG_BINFMT_MISC) += binfmt_misc.o
diff --git a/fs/anon_inodes.c b/fs/anon_inodes.c
index c5567cb7843..4d433d34736 100644
--- a/fs/anon_inodes.c
+++ b/fs/anon_inodes.c
@@ -233,7 +233,7 @@ static int __init anon_inode_init(void)
return 0;
err_mntput:
- mntput(anon_inode_mnt);
+ kern_unmount(anon_inode_mnt);
err_unregister_filesystem:
unregister_filesystem(&anon_inode_fs_type);
err_exit:
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 9fb0b15331d..f55aad4d161 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -44,24 +44,28 @@ inline struct block_device *I_BDEV(struct inode *inode)
{
return &BDEV_I(inode)->bdev;
}
-
EXPORT_SYMBOL(I_BDEV);
/*
- * move the inode from it's current bdi to the a new bdi. if the inode is dirty
- * we need to move it onto the dirty list of @dst so that the inode is always
- * on the right list.
+ * Move the inode from its current bdi to a new bdi. If the inode is dirty we
+ * need to move it onto the dirty list of @dst so that the inode is always on
+ * the right list.
*/
static void bdev_inode_switch_bdi(struct inode *inode,
struct backing_dev_info *dst)
{
- spin_lock(&inode_wb_list_lock);
+ struct backing_dev_info *old = inode->i_data.backing_dev_info;
+
+ if (unlikely(dst == old)) /* deadlock avoidance */
+ return;
+ bdi_lock_two(&old->wb, &dst->wb);
spin_lock(&inode->i_lock);
inode->i_data.backing_dev_info = dst;
if (inode->i_state & I_DIRTY)
list_move(&inode->i_wb_list, &dst->wb.b_dirty);
spin_unlock(&inode->i_lock);
- spin_unlock(&inode_wb_list_lock);
+ spin_unlock(&old->wb.list_lock);
+ spin_unlock(&dst->wb.list_lock);
}
static sector_t max_block(struct block_device *bdev)
@@ -1448,6 +1452,8 @@ static int __blkdev_put(struct block_device *bdev, fmode_t mode, int for_part)
int blkdev_put(struct block_device *bdev, fmode_t mode)
{
+ mutex_lock(&bdev->bd_mutex);
+
if (mode & FMODE_EXCL) {
bool bdev_free;
@@ -1456,7 +1462,6 @@ int blkdev_put(struct block_device *bdev, fmode_t mode)
* are protected with bdev_lock. bd_mutex is to
* synchronize disk_holder unlinking.
*/
- mutex_lock(&bdev->bd_mutex);
spin_lock(&bdev_lock);
WARN_ON_ONCE(--bdev->bd_holders < 0);
@@ -1474,17 +1479,21 @@ int blkdev_put(struct block_device *bdev, fmode_t mode)
* If this was the last claim, remove holder link and
* unblock evpoll if it was a write holder.
*/
- if (bdev_free) {
- if (bdev->bd_write_holder) {
- disk_unblock_events(bdev->bd_disk);
- disk_check_events(bdev->bd_disk);
- bdev->bd_write_holder = false;
- }
+ if (bdev_free && bdev->bd_write_holder) {
+ disk_unblock_events(bdev->bd_disk);
+ bdev->bd_write_holder = false;
}
-
- mutex_unlock(&bdev->bd_mutex);
}
+ /*
+ * Trigger event checking and tell drivers to flush MEDIA_CHANGE
+ * event. This is to ensure detection of media removal commanded
+ * from userland - e.g. eject(1).
+ */
+ disk_flush_events(bdev->bd_disk, DISK_EVENT_MEDIA_CHANGE);
+
+ mutex_unlock(&bdev->bd_mutex);
+
return __blkdev_put(bdev, mode, 0);
}
EXPORT_SYMBOL(blkdev_put);
diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c
index 9f62ab2a728..65a735d8f6e 100644
--- a/fs/btrfs/acl.c
+++ b/fs/btrfs/acl.c
@@ -30,7 +30,7 @@
#ifdef CONFIG_BTRFS_FS_POSIX_ACL
-static struct posix_acl *btrfs_get_acl(struct inode *inode, int type)
+struct posix_acl *btrfs_get_acl(struct inode *inode, int type)
{
int size;
const char *name;
@@ -195,27 +195,6 @@ out:
return ret;
}
-int btrfs_check_acl(struct inode *inode, int mask)
-{
- int error = -EAGAIN;
-
- if (mask & MAY_NOT_BLOCK) {
- if (!negative_cached_acl(inode, ACL_TYPE_ACCESS))
- error = -ECHILD;
- } else {
- struct posix_acl *acl;
- acl = btrfs_get_acl(inode, ACL_TYPE_ACCESS);
- if (IS_ERR(acl))
- return PTR_ERR(acl);
- if (acl) {
- error = posix_acl_permission(inode, acl, mask);
- posix_acl_release(acl);
- }
- }
-
- return error;
-}
-
/*
* btrfs_init_acl is already generally called under fs_mutex, so the locking
* stuff has been fixed to work with that. If the locking stuff changes, we
@@ -243,8 +222,7 @@ int btrfs_init_acl(struct btrfs_trans_handle *trans,
}
if (IS_POSIXACL(dir) && acl) {
- struct posix_acl *clone;
- mode_t mode;
+ mode_t mode = inode->i_mode;
if (S_ISDIR(inode->i_mode)) {
ret = btrfs_set_acl(trans, inode, acl,
@@ -252,22 +230,15 @@ int btrfs_init_acl(struct btrfs_trans_handle *trans,
if (ret)
goto failed;
}
- clone = posix_acl_clone(acl, GFP_NOFS);
- ret = -ENOMEM;
- if (!clone)
- goto failed;
+ ret = posix_acl_create(&acl, GFP_NOFS, &mode);
+ if (ret < 0)
+ return ret;
- mode = inode->i_mode;
- ret = posix_acl_create_masq(clone, &mode);
- if (ret >= 0) {
- inode->i_mode = mode;
- if (ret > 0) {
- /* we need an acl */
- ret = btrfs_set_acl(trans, inode, clone,
- ACL_TYPE_ACCESS);
- }
+ inode->i_mode = mode;
+ if (ret > 0) {
+ /* we need an acl */
+ ret = btrfs_set_acl(trans, inode, acl, ACL_TYPE_ACCESS);
}
- posix_acl_release(clone);
}
failed:
posix_acl_release(acl);
@@ -277,7 +248,7 @@ failed:
int btrfs_acl_chmod(struct inode *inode)
{
- struct posix_acl *acl, *clone;
+ struct posix_acl *acl;
int ret = 0;
if (S_ISLNK(inode->i_mode))
@@ -290,17 +261,11 @@ int btrfs_acl_chmod(struct inode *inode)
if (IS_ERR_OR_NULL(acl))
return PTR_ERR(acl);
- clone = posix_acl_clone(acl, GFP_KERNEL);
+ ret = posix_acl_chmod(&acl, GFP_KERNEL, inode->i_mode);
+ if (ret)
+ return ret;
+ ret = btrfs_set_acl(NULL, inode, acl, ACL_TYPE_ACCESS);
posix_acl_release(acl);
- if (!clone)
- return -ENOMEM;
-
- ret = posix_acl_chmod_masq(clone, inode->i_mode);
- if (!ret)
- ret = btrfs_set_acl(NULL, inode, clone, ACL_TYPE_ACCESS);
-
- posix_acl_release(clone);
-
return ret;
}
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 82be74efbb2..fe9287b0649 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -2645,9 +2645,9 @@ do { \
/* acl.c */
#ifdef CONFIG_BTRFS_FS_POSIX_ACL
-int btrfs_check_acl(struct inode *inode, int mask);
+struct posix_acl *btrfs_get_acl(struct inode *inode, int type);
#else
-#define btrfs_check_acl NULL
+#define btrfs_get_acl NULL
#endif
int btrfs_init_acl(struct btrfs_trans_handle *trans,
struct inode *inode, struct inode *dir);
diff --git a/fs/btrfs/delayed-inode.h b/fs/btrfs/delayed-inode.h
index 8d27af4bd8b..7083d08b2a2 100644
--- a/fs/btrfs/delayed-inode.h
+++ b/fs/btrfs/delayed-inode.h
@@ -25,7 +25,7 @@
#include <linux/mutex.h>
#include <linux/list.h>
#include <linux/wait.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include "ctree.h"
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 7055d11c1ef..561262d3568 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2551,7 +2551,6 @@ int extent_write_full_page(struct extent_io_tree *tree, struct page *page,
};
struct writeback_control wbc_writepages = {
.sync_mode = wbc->sync_mode,
- .older_than_this = NULL,
.nr_to_write = 64,
.range_start = page_offset(page) + PAGE_CACHE_SIZE,
.range_end = (loff_t)-1,
@@ -2584,7 +2583,6 @@ int extent_write_locked_range(struct extent_io_tree *tree, struct inode *inode,
};
struct writeback_control wbc_writepages = {
.sync_mode = mode,
- .older_than_this = NULL,
.nr_to_write = nr_pages * 2,
.range_start = start,
.range_end = end + 1,
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 2548a04a023..e91b097e725 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -7351,12 +7351,12 @@ static const struct inode_operations btrfs_dir_inode_operations = {
.listxattr = btrfs_listxattr,
.removexattr = btrfs_removexattr,
.permission = btrfs_permission,
- .check_acl = btrfs_check_acl,
+ .get_acl = btrfs_get_acl,
};
static const struct inode_operations btrfs_dir_ro_inode_operations = {
.lookup = btrfs_lookup,
.permission = btrfs_permission,
- .check_acl = btrfs_check_acl,
+ .get_acl = btrfs_get_acl,
};
static const struct file_operations btrfs_dir_file_operations = {
@@ -7425,7 +7425,7 @@ static const struct inode_operations btrfs_file_inode_operations = {
.removexattr = btrfs_removexattr,
.permission = btrfs_permission,
.fiemap = btrfs_fiemap,
- .check_acl = btrfs_check_acl,
+ .get_acl = btrfs_get_acl,
};
static const struct inode_operations btrfs_special_inode_operations = {
.getattr = btrfs_getattr,
@@ -7435,7 +7435,7 @@ static const struct inode_operations btrfs_special_inode_operations = {
.getxattr = btrfs_getxattr,
.listxattr = btrfs_listxattr,
.removexattr = btrfs_removexattr,
- .check_acl = btrfs_check_acl,
+ .get_acl = btrfs_get_acl,
};
static const struct inode_operations btrfs_symlink_inode_operations = {
.readlink = generic_readlink,
@@ -7447,7 +7447,7 @@ static const struct inode_operations btrfs_symlink_inode_operations = {
.getxattr = btrfs_getxattr,
.listxattr = btrfs_listxattr,
.removexattr = btrfs_removexattr,
- .check_acl = btrfs_check_acl,
+ .get_acl = btrfs_get_acl,
};
const struct dentry_operations btrfs_dentry_operations = {
diff --git a/fs/ceph/debugfs.c b/fs/ceph/debugfs.c
index 0dba6915712..fb962efdace 100644
--- a/fs/ceph/debugfs.c
+++ b/fs/ceph/debugfs.c
@@ -102,7 +102,7 @@ static int mdsc_show(struct seq_file *s, void *p)
path = NULL;
spin_lock(&req->r_old_dentry->d_lock);
seq_printf(s, " #%llx/%.*s (%s)",
- ceph_ino(req->r_old_dentry->d_parent->d_inode),
+ ceph_ino(req->r_old_dentry_dir),
req->r_old_dentry->d_name.len,
req->r_old_dentry->d_name.name,
path ? path : "");
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index 1065ac77984..382abc9a6a5 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -40,14 +40,6 @@ int ceph_init_dentry(struct dentry *dentry)
if (dentry->d_fsdata)
return 0;
- if (dentry->d_parent == NULL || /* nfs fh_to_dentry */
- ceph_snap(dentry->d_parent->d_inode) == CEPH_NOSNAP)
- d_set_d_op(dentry, &ceph_dentry_ops);
- else if (ceph_snap(dentry->d_parent->d_inode) == CEPH_SNAPDIR)
- d_set_d_op(dentry, &ceph_snapdir_dentry_ops);
- else
- d_set_d_op(dentry, &ceph_snap_dentry_ops);
-
di = kmem_cache_alloc(ceph_dentry_cachep, GFP_NOFS | __GFP_ZERO);
if (!di)
return -ENOMEM; /* oh well */
@@ -58,16 +50,42 @@ int ceph_init_dentry(struct dentry *dentry)
kmem_cache_free(ceph_dentry_cachep, di);
goto out_unlock;
}
+
+ if (dentry->d_parent == NULL || /* nfs fh_to_dentry */
+ ceph_snap(dentry->d_parent->d_inode) == CEPH_NOSNAP)
+ d_set_d_op(dentry, &ceph_dentry_ops);
+ else if (ceph_snap(dentry->d_parent->d_inode) == CEPH_SNAPDIR)
+ d_set_d_op(dentry, &ceph_snapdir_dentry_ops);
+ else
+ d_set_d_op(dentry, &ceph_snap_dentry_ops);
+
di->dentry = dentry;
di->lease_session = NULL;
- dentry->d_fsdata = di;
dentry->d_time = jiffies;
+ /* avoid reordering d_fsdata setup so that the check above is safe */
+ smp_mb();
+ dentry->d_fsdata = di;
ceph_dentry_lru_add(dentry);
out_unlock:
spin_unlock(&dentry->d_lock);
return 0;
}
+struct inode *ceph_get_dentry_parent_inode(struct dentry *dentry)
+{
+ struct inode *inode = NULL;
+
+ if (!dentry)
+ return NULL;
+
+ spin_lock(&dentry->d_lock);
+ if (dentry->d_parent) {
+ inode = dentry->d_parent->d_inode;
+ ihold(inode);
+ }
+ spin_unlock(&dentry->d_lock);
+ return inode;
+}
/*
@@ -133,7 +151,7 @@ more:
d_unhashed(dentry) ? "!hashed" : "hashed",
parent->d_subdirs.prev, parent->d_subdirs.next);
if (p == &parent->d_subdirs) {
- fi->at_end = 1;
+ fi->flags |= CEPH_F_ATEND;
goto out_unlock;
}
spin_lock_nested(&dentry->d_lock, DENTRY_D_LOCK_NESTED);
@@ -234,7 +252,7 @@ static int ceph_readdir(struct file *filp, void *dirent, filldir_t filldir)
const int max_bytes = fsc->mount_options->max_readdir_bytes;
dout("readdir %p filp %p frag %u off %u\n", inode, filp, frag, off);
- if (fi->at_end)
+ if (fi->flags & CEPH_F_ATEND)
return 0;
/* always start with . and .. */
@@ -403,7 +421,7 @@ more:
dout("readdir next frag is %x\n", frag);
goto more;
}
- fi->at_end = 1;
+ fi->flags |= CEPH_F_ATEND;
/*
* if dir_release_count still matches the dir, no dentries
@@ -435,7 +453,7 @@ static void reset_readdir(struct ceph_file_info *fi)
dput(fi->dentry);
fi->dentry = NULL;
}
- fi->at_end = 0;
+ fi->flags &= ~CEPH_F_ATEND;
}
static loff_t ceph_dir_llseek(struct file *file, loff_t offset, int origin)
@@ -463,7 +481,7 @@ static loff_t ceph_dir_llseek(struct file *file, loff_t offset, int origin)
if (offset != file->f_pos) {
file->f_pos = offset;
file->f_version = 0;
- fi->at_end = 0;
+ fi->flags &= ~CEPH_F_ATEND;
}
retval = offset;
@@ -488,21 +506,13 @@ out:
}
/*
- * Process result of a lookup/open request.
- *
- * Mainly, make sure we return the final req->r_dentry (if it already
- * existed) in place of the original VFS-provided dentry when they
- * differ.
- *
- * Gracefully handle the case where the MDS replies with -ENOENT and
- * no trace (which it may do, at its discretion, e.g., if it doesn't
- * care to issue a lease on the negative dentry).
+ * Handle lookups for the hidden .snap directory.
*/
-struct dentry *ceph_finish_lookup(struct ceph_mds_request *req,
- struct dentry *dentry, int err)
+int ceph_handle_snapdir(struct ceph_mds_request *req,
+ struct dentry *dentry, int err)
{
struct ceph_fs_client *fsc = ceph_sb_to_client(dentry->d_sb);
- struct inode *parent = dentry->d_parent->d_inode;
+ struct inode *parent = dentry->d_parent->d_inode; /* we hold i_mutex */
/* .snap dir? */
if (err == -ENOENT &&
@@ -516,7 +526,23 @@ struct dentry *ceph_finish_lookup(struct ceph_mds_request *req,
d_add(dentry, inode);
err = 0;
}
+ return err;
+}
+/*
+ * Figure out final result of a lookup/open request.
+ *
+ * Mainly, make sure we return the final req->r_dentry (if it already
+ * existed) in place of the original VFS-provided dentry when they
+ * differ.
+ *
+ * Gracefully handle the case where the MDS replies with -ENOENT and
+ * no trace (which it may do, at its discretion, e.g., if it doesn't
+ * care to issue a lease on the negative dentry).
+ */
+struct dentry *ceph_finish_lookup(struct ceph_mds_request *req,
+ struct dentry *dentry, int err)
+{
if (err == -ENOENT) {
/* no trace? */
err = 0;
@@ -610,6 +636,7 @@ static struct dentry *ceph_lookup(struct inode *dir, struct dentry *dentry,
req->r_args.getattr.mask = cpu_to_le32(CEPH_STAT_CAP_INODE);
req->r_locked_dir = dir;
err = ceph_mdsc_do_request(mdsc, NULL, req);
+ err = ceph_handle_snapdir(req, dentry, err);
dentry = ceph_finish_lookup(req, dentry, err);
ceph_mdsc_put_request(req); /* will dput(dentry) */
dout("lookup result=%p\n", dentry);
@@ -789,6 +816,7 @@ static int ceph_link(struct dentry *old_dentry, struct inode *dir,
req->r_dentry = dget(dentry);
req->r_num_caps = 2;
req->r_old_dentry = dget(old_dentry); /* or inode? hrm. */
+ req->r_old_dentry_dir = ceph_get_dentry_parent_inode(old_dentry);
req->r_locked_dir = dir;
req->r_dentry_drop = CEPH_CAP_FILE_SHARED;
req->r_dentry_unless = CEPH_CAP_FILE_EXCL;
@@ -887,6 +915,7 @@ static int ceph_rename(struct inode *old_dir, struct dentry *old_dentry,
req->r_dentry = dget(new_dentry);
req->r_num_caps = 2;
req->r_old_dentry = dget(old_dentry);
+ req->r_old_dentry_dir = ceph_get_dentry_parent_inode(old_dentry);
req->r_locked_dir = new_dir;
req->r_old_dentry_drop = CEPH_CAP_FILE_SHARED;
req->r_old_dentry_unless = CEPH_CAP_FILE_EXCL;
@@ -1002,36 +1031,38 @@ static int dir_lease_is_valid(struct inode *dir, struct dentry *dentry)
*/
static int ceph_d_revalidate(struct dentry *dentry, struct nameidata *nd)
{
+ int valid = 0;
struct inode *dir;
if (nd && nd->flags & LOOKUP_RCU)
return -ECHILD;
- dir = dentry->d_parent->d_inode;
-
dout("d_revalidate %p '%.*s' inode %p offset %lld\n", dentry,
dentry->d_name.len, dentry->d_name.name, dentry->d_inode,
ceph_dentry(dentry)->offset);
+ dir = ceph_get_dentry_parent_inode(dentry);
+
/* always trust cached snapped dentries, snapdir dentry */
if (ceph_snap(dir) != CEPH_NOSNAP) {
dout("d_revalidate %p '%.*s' inode %p is SNAPPED\n", dentry,
dentry->d_name.len, dentry->d_name.name, dentry->d_inode);
- goto out_touch;
+ valid = 1;
+ } else if (dentry->d_inode &&
+ ceph_snap(dentry->d_inode) == CEPH_SNAPDIR) {
+ valid = 1;
+ } else if (dentry_lease_is_valid(dentry) ||
+ dir_lease_is_valid(dir, dentry)) {
+ valid = 1;
}
- if (dentry->d_inode && ceph_snap(dentry->d_inode) == CEPH_SNAPDIR)
- goto out_touch;
-
- if (dentry_lease_is_valid(dentry) ||
- dir_lease_is_valid(dir, dentry))
- goto out_touch;
- dout("d_revalidate %p invalid\n", dentry);
- d_drop(dentry);
- return 0;
-out_touch:
- ceph_dentry_lru_touch(dentry);
- return 1;
+ dout("d_revalidate %p %s\n", dentry, valid ? "valid" : "invalid");
+ if (valid)
+ ceph_dentry_lru_touch(dentry);
+ else
+ d_drop(dentry);
+ iput(dir);
+ return valid;
}
/*
@@ -1228,9 +1259,8 @@ void ceph_dentry_lru_del(struct dentry *dn)
* Return name hash for a given dentry. This is dependent on
* the parent directory's hash function.
*/
-unsigned ceph_dentry_hash(struct dentry *dn)
+unsigned ceph_dentry_hash(struct inode *dir, struct dentry *dn)
{
- struct inode *dir = dn->d_parent->d_inode;
struct ceph_inode_info *dci = ceph_inode(dir);
switch (dci->i_dir_layout.dl_dir_hash) {
diff --git a/fs/ceph/export.c b/fs/ceph/export.c
index f67b687550d..9fbcdecaacc 100644
--- a/fs/ceph/export.c
+++ b/fs/ceph/export.c
@@ -46,7 +46,7 @@ static int ceph_encode_fh(struct dentry *dentry, u32 *rawfh, int *max_len,
int type;
struct ceph_nfs_fh *fh = (void *)rawfh;
struct ceph_nfs_confh *cfh = (void *)rawfh;
- struct dentry *parent = dentry->d_parent;
+ struct dentry *parent;
struct inode *inode = dentry->d_inode;
int connected_handle_length = sizeof(*cfh)/4;
int handle_length = sizeof(*fh)/4;
@@ -55,26 +55,33 @@ static int ceph_encode_fh(struct dentry *dentry, u32 *rawfh, int *max_len,
if (ceph_snap(inode) != CEPH_NOSNAP)
return -EINVAL;
+ spin_lock(&dentry->d_lock);
+ parent = dget(dentry->d_parent);
+ spin_unlock(&dentry->d_lock);
+
if (*max_len >= connected_handle_length) {
dout("encode_fh %p connectable\n", dentry);
cfh->ino = ceph_ino(dentry->d_inode);
cfh->parent_ino = ceph_ino(parent->d_inode);
- cfh->parent_name_hash = ceph_dentry_hash(parent);
+ cfh->parent_name_hash = ceph_dentry_hash(parent->d_inode,
+ dentry);
*max_len = connected_handle_length;
type = 2;
} else if (*max_len >= handle_length) {
if (connectable) {
*max_len = connected_handle_length;
- return 255;
+ type = 255;
+ } else {
+ dout("encode_fh %p\n", dentry);
+ fh->ino = ceph_ino(dentry->d_inode);
+ *max_len = handle_length;
+ type = 1;
}
- dout("encode_fh %p\n", dentry);
- fh->ino = ceph_ino(dentry->d_inode);
- *max_len = handle_length;
- type = 1;
} else {
*max_len = handle_length;
- return 255;
+ type = 255;
}
+ dput(parent);
return type;
}
@@ -123,7 +130,6 @@ static struct dentry *__fh_to_dentry(struct super_block *sb,
return dentry;
}
err = ceph_init_dentry(dentry);
-
if (err < 0) {
iput(inode);
return ERR_PTR(err);
diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index 0d0eae05598..ce549d31eeb 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -122,7 +122,7 @@ int ceph_open(struct inode *inode, struct file *file)
struct ceph_mds_client *mdsc = fsc->mdsc;
struct ceph_mds_request *req;
struct ceph_file_info *cf = file->private_data;
- struct inode *parent_inode = file->f_dentry->d_parent->d_inode;
+ struct inode *parent_inode = NULL;
int err;
int flags, fmode, wanted;
@@ -194,7 +194,10 @@ int ceph_open(struct inode *inode, struct file *file)
req->r_inode = inode;
ihold(inode);
req->r_num_caps = 1;
+ if (flags & (O_CREAT|O_TRUNC))
+ parent_inode = ceph_get_dentry_parent_inode(file->f_dentry);
err = ceph_mdsc_do_request(mdsc, parent_inode, req);
+ iput(parent_inode);
if (!err)
err = ceph_init_file(inode, file, req->r_fmode);
ceph_mdsc_put_request(req);
@@ -222,9 +225,9 @@ struct dentry *ceph_lookup_open(struct inode *dir, struct dentry *dentry,
{
struct ceph_fs_client *fsc = ceph_sb_to_client(dir->i_sb);
struct ceph_mds_client *mdsc = fsc->mdsc;
- struct file *file = nd->intent.open.file;
- struct inode *parent_inode = get_dentry_parent_inode(file->f_dentry);
+ struct file *file;
struct ceph_mds_request *req;
+ struct dentry *ret;
int err;
int flags = nd->intent.open.flags;
@@ -242,16 +245,24 @@ struct dentry *ceph_lookup_open(struct inode *dir, struct dentry *dentry,
req->r_dentry_unless = CEPH_CAP_FILE_EXCL;
}
req->r_locked_dir = dir; /* caller holds dir->i_mutex */
- err = ceph_mdsc_do_request(mdsc, parent_inode, req);
- dentry = ceph_finish_lookup(req, dentry, err);
- if (!err && (flags & O_CREAT) && !req->r_reply_info.head->is_dentry)
+ err = ceph_mdsc_do_request(mdsc,
+ (flags & (O_CREAT|O_TRUNC)) ? dir : NULL,
+ req);
+ err = ceph_handle_snapdir(req, dentry, err);
+ if (err)
+ goto out;
+ if ((flags & O_CREAT) && !req->r_reply_info.head->is_dentry)
err = ceph_handle_notrace_create(dir, dentry);
- if (!err)
- err = ceph_init_file(req->r_dentry->d_inode, file,
- req->r_fmode);
+ if (err)
+ goto out;
+ file = lookup_instantiate_filp(nd, req->r_dentry, ceph_open);
+ if (IS_ERR(file))
+ err = PTR_ERR(file);
+out:
+ ret = ceph_finish_lookup(req, dentry, err);
ceph_mdsc_put_request(req);
- dout("ceph_lookup_open result=%p\n", dentry);
- return dentry;
+ dout("ceph_lookup_open result=%p\n", ret);
+ return ret;
}
int ceph_release(struct inode *inode, struct file *file)
@@ -643,7 +654,8 @@ again:
if ((got & (CEPH_CAP_FILE_CACHE|CEPH_CAP_FILE_LAZYIO)) == 0 ||
(iocb->ki_filp->f_flags & O_DIRECT) ||
- (inode->i_sb->s_flags & MS_SYNCHRONOUS))
+ (inode->i_sb->s_flags & MS_SYNCHRONOUS) ||
+ (fi->flags & CEPH_F_SYNC))
/* hmm, this isn't really async... */
ret = ceph_sync_read(filp, base, len, ppos, &checkeof);
else
@@ -712,7 +724,7 @@ retry_snap:
want = CEPH_CAP_FILE_BUFFER;
ret = ceph_get_caps(ci, CEPH_CAP_FILE_WR, want, &got, endoff);
if (ret < 0)
- goto out;
+ goto out_put;
dout("aio_write %p %llx.%llx %llu~%u got cap refs on %s\n",
inode, ceph_vinop(inode), pos, (unsigned)iov->iov_len,
@@ -720,12 +732,23 @@ retry_snap:
if ((got & (CEPH_CAP_FILE_BUFFER|CEPH_CAP_FILE_LAZYIO)) == 0 ||
(iocb->ki_filp->f_flags & O_DIRECT) ||
- (inode->i_sb->s_flags & MS_SYNCHRONOUS)) {
+ (inode->i_sb->s_flags & MS_SYNCHRONOUS) ||
+ (fi->flags & CEPH_F_SYNC)) {
ret = ceph_sync_write(file, iov->iov_base, iov->iov_len,
&iocb->ki_pos);
} else {
- ret = generic_file_aio_write(iocb, iov, nr_segs, pos);
+ /*
+ * buffered write; drop Fw early to avoid slow
+ * revocation if we get stuck on balance_dirty_pages
+ */
+ int dirty;
+ spin_lock(&inode->i_lock);
+ dirty = __ceph_mark_dirty_caps(ci, CEPH_CAP_FILE_WR);
+ spin_unlock(&inode->i_lock);
+ ceph_put_cap_refs(ci, got);
+
+ ret = generic_file_aio_write(iocb, iov, nr_segs, pos);
if ((ret >= 0 || ret == -EIOCBQUEUED) &&
((file->f_flags & O_SYNC) || IS_SYNC(file->f_mapping->host)
|| ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_NEARFULL))) {
@@ -733,7 +756,12 @@ retry_snap:
if (err < 0)
ret = err;
}
+
+ if (dirty)
+ __mark_inode_dirty(inode, dirty);
+ goto out;
}
+
if (ret >= 0) {
int dirty;
spin_lock(&inode->i_lock);
@@ -743,12 +771,13 @@ retry_snap:
__mark_inode_dirty(inode, dirty);
}
-out:
+out_put:
dout("aio_write %p %llx.%llx %llu~%u dropping cap refs on %s\n",
inode, ceph_vinop(inode), pos, (unsigned)iov->iov_len,
ceph_cap_string(got));
ceph_put_cap_refs(ci, got);
+out:
if (ret == -EOLDSNAPC) {
dout("aio_write %p %llx.%llx %llu~%u got EOLDSNAPC, retrying\n",
inode, ceph_vinop(inode), pos, (unsigned)iov->iov_len);
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index dfb2831d8d8..095799ba9dd 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -560,7 +560,8 @@ static int fill_inode(struct inode *inode,
struct ceph_mds_reply_inode *info = iinfo->in;
struct ceph_inode_info *ci = ceph_inode(inode);
int i;
- int issued, implemented;
+ int issued = 0, implemented;
+ int updating_inode = 0;
struct timespec mtime, atime, ctime;
u32 nsplits;
struct ceph_buffer *xattr_blob = NULL;
@@ -599,7 +600,8 @@ static int fill_inode(struct inode *inode,
if (le64_to_cpu(info->version) > 0 &&
(ci->i_version & ~1) >= le64_to_cpu(info->version))
goto no_change;
-
+
+ updating_inode = 1;
issued = __ceph_caps_issued(ci, &implemented);
issued |= implemented | __ceph_caps_dirty(ci);
@@ -707,17 +709,6 @@ static int fill_inode(struct inode *inode,
ci->i_rfiles = le64_to_cpu(info->rfiles);
ci->i_rsubdirs = le64_to_cpu(info->rsubdirs);
ceph_decode_timespec(&ci->i_rctime, &info->rctime);
-
- /* set dir completion flag? */
- if (ci->i_files == 0 && ci->i_subdirs == 0 &&
- ceph_snap(inode) == CEPH_NOSNAP &&
- (le32_to_cpu(info->cap.caps) & CEPH_CAP_FILE_SHARED) &&
- (issued & CEPH_CAP_FILE_EXCL) == 0 &&
- (ci->i_ceph_flags & CEPH_I_COMPLETE) == 0) {
- dout(" marking %p complete (empty)\n", inode);
- /* ci->i_ceph_flags |= CEPH_I_COMPLETE; */
- ci->i_max_offset = 2;
- }
break;
default:
pr_err("fill_inode %llx.%llx BAD mode 0%o\n",
@@ -774,6 +765,19 @@ no_change:
__ceph_get_fmode(ci, cap_fmode);
}
+ /* set dir completion flag? */
+ if (S_ISDIR(inode->i_mode) &&
+ updating_inode && /* didn't jump to no_change */
+ ci->i_files == 0 && ci->i_subdirs == 0 &&
+ ceph_snap(inode) == CEPH_NOSNAP &&
+ (le32_to_cpu(info->cap.caps) & CEPH_CAP_FILE_SHARED) &&
+ (issued & CEPH_CAP_FILE_EXCL) == 0 &&
+ (ci->i_ceph_flags & CEPH_I_COMPLETE) == 0) {
+ dout(" marking %p complete (empty)\n", inode);
+ /* ci->i_ceph_flags |= CEPH_I_COMPLETE; */
+ ci->i_max_offset = 2;
+ }
+
/* update delegation info? */
if (dirinfo)
ceph_fill_dirfrag(inode, dirinfo);
@@ -805,14 +809,14 @@ static void update_dentry_lease(struct dentry *dentry,
return;
spin_lock(&dentry->d_lock);
- dout("update_dentry_lease %p mask %d duration %lu ms ttl %lu\n",
- dentry, le16_to_cpu(lease->mask), duration, ttl);
+ dout("update_dentry_lease %p duration %lu ms ttl %lu\n",
+ dentry, duration, ttl);
/* make lease_rdcache_gen match directory */
dir = dentry->d_parent->d_inode;
di->lease_shared_gen = ceph_inode(dir)->i_shared_gen;
- if (lease->mask == 0)
+ if (duration == 0)
goto out_unlock;
if (di->lease_gen == session->s_cap_gen &&
@@ -839,11 +843,13 @@ out_unlock:
/*
* Set dentry's directory position based on the current dir's max, and
* order it in d_subdirs, so that dcache_readdir behaves.
+ *
+ * Always called under directory's i_mutex.
*/
static void ceph_set_dentry_offset(struct dentry *dn)
{
struct dentry *dir = dn->d_parent;
- struct inode *inode = dn->d_parent->d_inode;
+ struct inode *inode = dir->d_inode;
struct ceph_dentry_info *di;
BUG_ON(!inode);
@@ -1022,9 +1028,7 @@ int ceph_fill_trace(struct super_block *sb, struct ceph_mds_request *req,
/* do we have a dn lease? */
have_lease = have_dir_cap ||
- (le16_to_cpu(rinfo->dlease->mask) &
- CEPH_LOCK_DN);
-
+ le32_to_cpu(rinfo->dlease->duration_ms);
if (!have_lease)
dout("fill_trace no dentry lease or dir cap\n");
@@ -1560,7 +1564,7 @@ int ceph_setattr(struct dentry *dentry, struct iattr *attr)
{
struct inode *inode = dentry->d_inode;
struct ceph_inode_info *ci = ceph_inode(inode);
- struct inode *parent_inode = dentry->d_parent->d_inode;
+ struct inode *parent_inode;
const unsigned int ia_valid = attr->ia_valid;
struct ceph_mds_request *req;
struct ceph_mds_client *mdsc = ceph_sb_to_client(dentry->d_sb)->mdsc;
@@ -1743,7 +1747,9 @@ int ceph_setattr(struct dentry *dentry, struct iattr *attr)
req->r_inode_drop = release;
req->r_args.setattr.mask = cpu_to_le32(mask);
req->r_num_caps = 1;
+ parent_inode = ceph_get_dentry_parent_inode(dentry);
err = ceph_mdsc_do_request(mdsc, parent_inode, req);
+ iput(parent_inode);
}
dout("setattr %p result=%d (%s locally, %d remote)\n", inode, err,
ceph_cap_string(dirtied), mask);
diff --git a/fs/ceph/ioctl.c b/fs/ceph/ioctl.c
index ef0b5f48e13..3b256b50f7d 100644
--- a/fs/ceph/ioctl.c
+++ b/fs/ceph/ioctl.c
@@ -38,7 +38,7 @@ static long ceph_ioctl_get_layout(struct file *file, void __user *arg)
static long ceph_ioctl_set_layout(struct file *file, void __user *arg)
{
struct inode *inode = file->f_dentry->d_inode;
- struct inode *parent_inode = file->f_dentry->d_parent->d_inode;
+ struct inode *parent_inode;
struct ceph_mds_client *mdsc = ceph_sb_to_client(inode->i_sb)->mdsc;
struct ceph_mds_request *req;
struct ceph_ioctl_layout l;
@@ -87,7 +87,9 @@ static long ceph_ioctl_set_layout(struct file *file, void __user *arg)
req->r_args.setlayout.layout.fl_pg_preferred =
cpu_to_le32(l.preferred_osd);
+ parent_inode = ceph_get_dentry_parent_inode(file->f_dentry);
err = ceph_mdsc_do_request(mdsc, parent_inode, req);
+ iput(parent_inode);
ceph_mdsc_put_request(req);
return err;
}
@@ -231,6 +233,14 @@ static long ceph_ioctl_lazyio(struct file *file)
return 0;
}
+static long ceph_ioctl_syncio(struct file *file)
+{
+ struct ceph_file_info *fi = file->private_data;
+
+ fi->flags |= CEPH_F_SYNC;
+ return 0;
+}
+
long ceph_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
dout("ioctl file %p cmd %u arg %lu\n", file, cmd, arg);
@@ -249,6 +259,9 @@ long ceph_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
case CEPH_IOC_LAZYIO:
return ceph_ioctl_lazyio(file);
+
+ case CEPH_IOC_SYNCIO:
+ return ceph_ioctl_syncio(file);
}
return -ENOTTY;
diff --git a/fs/ceph/ioctl.h b/fs/ceph/ioctl.h
index 52e8fd74d45..0c5167e4318 100644
--- a/fs/ceph/ioctl.h
+++ b/fs/ceph/ioctl.h
@@ -40,5 +40,6 @@ struct ceph_ioctl_dataloc {
struct ceph_ioctl_dataloc)
#define CEPH_IOC_LAZYIO _IO(CEPH_IOCTL_MAGIC, 4)
+#define CEPH_IOC_SYNCIO _IO(CEPH_IOCTL_MAGIC, 5)
#endif
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 0c1d9175652..fee028b5332 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -483,22 +483,26 @@ void ceph_mdsc_release_request(struct kref *kref)
destroy_reply_info(&req->r_reply_info);
}
if (req->r_inode) {
- ceph_put_cap_refs(ceph_inode(req->r_inode),
- CEPH_CAP_PIN);
+ ceph_put_cap_refs(ceph_inode(req->r_inode), CEPH_CAP_PIN);
iput(req->r_inode);
}
if (req->r_locked_dir)
- ceph_put_cap_refs(ceph_inode(req->r_locked_dir),
- CEPH_CAP_PIN);
+ ceph_put_cap_refs(ceph_inode(req->r_locked_dir), CEPH_CAP_PIN);
if (req->r_target_inode)
iput(req->r_target_inode);
if (req->r_dentry)
dput(req->r_dentry);
if (req->r_old_dentry) {
- ceph_put_cap_refs(
- ceph_inode(req->r_old_dentry->d_parent->d_inode),
- CEPH_CAP_PIN);
+ /*
+ * track (and drop pins for) r_old_dentry_dir
+ * separately, since r_old_dentry's d_parent may have
+ * changed between the dir mutex being dropped and
+ * this request being freed.
+ */
+ ceph_put_cap_refs(ceph_inode(req->r_old_dentry_dir),
+ CEPH_CAP_PIN);
dput(req->r_old_dentry);
+ iput(req->r_old_dentry_dir);
}
kfree(req->r_path1);
kfree(req->r_path2);
@@ -617,6 +621,12 @@ static void __unregister_request(struct ceph_mds_client *mdsc,
*/
struct dentry *get_nonsnap_parent(struct dentry *dentry)
{
+ /*
+ * we don't need to worry about protecting the d_parent access
+ * here because we never renaming inside the snapped namespace
+ * except to resplice to another snapdir, and either the old or new
+ * result is a valid result.
+ */
while (!IS_ROOT(dentry) && ceph_snap(dentry->d_inode) != CEPH_NOSNAP)
dentry = dentry->d_parent;
return dentry;
@@ -652,7 +662,9 @@ static int __choose_mds(struct ceph_mds_client *mdsc,
if (req->r_inode) {
inode = req->r_inode;
} else if (req->r_dentry) {
- struct inode *dir = req->r_dentry->d_parent->d_inode;
+ /* ignore race with rename; old or new d_parent is okay */
+ struct dentry *parent = req->r_dentry->d_parent;
+ struct inode *dir = parent->d_inode;
if (dir->i_sb != mdsc->fsc->sb) {
/* not this fs! */
@@ -660,8 +672,7 @@ static int __choose_mds(struct ceph_mds_client *mdsc,
} else if (ceph_snap(dir) != CEPH_NOSNAP) {
/* direct snapped/virtual snapdir requests
* based on parent dir inode */
- struct dentry *dn =
- get_nonsnap_parent(req->r_dentry->d_parent);
+ struct dentry *dn = get_nonsnap_parent(parent);
inode = dn->d_inode;
dout("__choose_mds using nonsnap parent %p\n", inode);
} else if (req->r_dentry->d_inode) {
@@ -670,7 +681,7 @@ static int __choose_mds(struct ceph_mds_client *mdsc,
} else {
/* dir + name */
inode = dir;
- hash = ceph_dentry_hash(req->r_dentry);
+ hash = ceph_dentry_hash(dir, req->r_dentry);
is_hash = true;
}
}
@@ -1931,9 +1942,8 @@ int ceph_mdsc_do_request(struct ceph_mds_client *mdsc,
if (req->r_locked_dir)
ceph_get_cap_refs(ceph_inode(req->r_locked_dir), CEPH_CAP_PIN);
if (req->r_old_dentry)
- ceph_get_cap_refs(
- ceph_inode(req->r_old_dentry->d_parent->d_inode),
- CEPH_CAP_PIN);
+ ceph_get_cap_refs(ceph_inode(req->r_old_dentry_dir),
+ CEPH_CAP_PIN);
/* issue */
mutex_lock(&mdsc->mutex);
@@ -2714,7 +2724,6 @@ static void handle_lease(struct ceph_mds_client *mdsc,
struct ceph_mds_lease *h = msg->front.iov_base;
u32 seq;
struct ceph_vino vino;
- int mask;
struct qstr dname;
int release = 0;
@@ -2725,7 +2734,6 @@ static void handle_lease(struct ceph_mds_client *mdsc,
goto bad;
vino.ino = le64_to_cpu(h->ino);
vino.snap = CEPH_NOSNAP;
- mask = le16_to_cpu(h->mask);
seq = le32_to_cpu(h->seq);
dname.name = (void *)h + sizeof(*h) + sizeof(u32);
dname.len = msg->front.iov_len - sizeof(*h) - sizeof(u32);
@@ -2737,8 +2745,8 @@ static void handle_lease(struct ceph_mds_client *mdsc,
/* lookup inode */
inode = ceph_find_inode(sb, vino);
- dout("handle_lease %s, mask %d, ino %llx %p %.*s\n",
- ceph_lease_op_name(h->action), mask, vino.ino, inode,
+ dout("handle_lease %s, ino %llx %p %.*s\n",
+ ceph_lease_op_name(h->action), vino.ino, inode,
dname.len, dname.name);
if (inode == NULL) {
dout("handle_lease no inode %llx\n", vino.ino);
@@ -2828,7 +2836,6 @@ void ceph_mdsc_lease_send_msg(struct ceph_mds_session *session,
return;
lease = msg->front.iov_base;
lease->action = action;
- lease->mask = cpu_to_le16(1);
lease->ino = cpu_to_le64(ceph_vino(inode).ino);
lease->first = lease->last = cpu_to_le64(ceph_vino(inode).snap);
lease->seq = cpu_to_le32(seq);
@@ -2850,7 +2857,7 @@ void ceph_mdsc_lease_send_msg(struct ceph_mds_session *session,
* Pass @inode always, @dentry is optional.
*/
void ceph_mdsc_lease_release(struct ceph_mds_client *mdsc, struct inode *inode,
- struct dentry *dentry, int mask)
+ struct dentry *dentry)
{
struct ceph_dentry_info *di;
struct ceph_mds_session *session;
@@ -2858,7 +2865,6 @@ void ceph_mdsc_lease_release(struct ceph_mds_client *mdsc, struct inode *inode,
BUG_ON(inode == NULL);
BUG_ON(dentry == NULL);
- BUG_ON(mask == 0);
/* is dentry lease valid? */
spin_lock(&dentry->d_lock);
@@ -2868,8 +2874,8 @@ void ceph_mdsc_lease_release(struct ceph_mds_client *mdsc, struct inode *inode,
di->lease_gen != di->lease_session->s_cap_gen ||
!time_before(jiffies, dentry->d_time)) {
dout("lease_release inode %p dentry %p -- "
- "no lease on %d\n",
- inode, dentry, mask);
+ "no lease\n",
+ inode, dentry);
spin_unlock(&dentry->d_lock);
return;
}
@@ -2880,8 +2886,8 @@ void ceph_mdsc_lease_release(struct ceph_mds_client *mdsc, struct inode *inode,
__ceph_mdsc_drop_dentry_lease(dentry);
spin_unlock(&dentry->d_lock);
- dout("lease_release inode %p dentry %p mask %d to mds%d\n",
- inode, dentry, mask, session->s_mds);
+ dout("lease_release inode %p dentry %p to mds%d\n",
+ inode, dentry, session->s_mds);
ceph_mdsc_lease_send_msg(session, inode, dentry,
CEPH_MDS_LEASE_RELEASE, seq);
ceph_put_mds_session(session);
diff --git a/fs/ceph/mds_client.h b/fs/ceph/mds_client.h
index 7d8a0d662d5..4bb239921db 100644
--- a/fs/ceph/mds_client.h
+++ b/fs/ceph/mds_client.h
@@ -171,6 +171,7 @@ struct ceph_mds_request {
struct inode *r_inode; /* arg1 */
struct dentry *r_dentry; /* arg1 */
struct dentry *r_old_dentry; /* arg2: rename from or link from */
+ struct inode *r_old_dentry_dir; /* arg2: old dentry's parent dir */
char *r_path1, *r_path2;
struct ceph_vino r_ino1, r_ino2;
@@ -333,7 +334,7 @@ extern void ceph_mdsc_sync(struct ceph_mds_client *mdsc);
extern void ceph_mdsc_lease_release(struct ceph_mds_client *mdsc,
struct inode *inode,
- struct dentry *dn, int mask);
+ struct dentry *dn);
extern void ceph_invalidate_dir_request(struct ceph_mds_request *req);
diff --git a/fs/ceph/snap.c b/fs/ceph/snap.c
index 54b14de2e72..e2643719133 100644
--- a/fs/ceph/snap.c
+++ b/fs/ceph/snap.c
@@ -449,6 +449,15 @@ void ceph_queue_cap_snap(struct ceph_inode_info *ci)
spin_lock(&inode->i_lock);
used = __ceph_caps_used(ci);
dirty = __ceph_caps_dirty(ci);
+
+ /*
+ * If there is a write in progress, treat that as a dirty Fw,
+ * even though it hasn't completed yet; by the time we finish
+ * up this capsnap it will be.
+ */
+ if (used & CEPH_CAP_FILE_WR)
+ dirty |= CEPH_CAP_FILE_WR;
+
if (__ceph_have_pending_cap_snap(ci)) {
/* there is no point in queuing multiple "pending" cap_snaps,
as no new writes are allowed to start when pending, so any
@@ -456,13 +465,19 @@ void ceph_queue_cap_snap(struct ceph_inode_info *ci)
cap_snap. lucky us. */
dout("queue_cap_snap %p already pending\n", inode);
kfree(capsnap);
- } else if (ci->i_wrbuffer_ref_head || (used & CEPH_CAP_FILE_WR) ||
- (dirty & (CEPH_CAP_AUTH_EXCL|CEPH_CAP_XATTR_EXCL|
- CEPH_CAP_FILE_EXCL|CEPH_CAP_FILE_WR))) {
+ } else if (dirty & (CEPH_CAP_AUTH_EXCL|CEPH_CAP_XATTR_EXCL|
+ CEPH_CAP_FILE_EXCL|CEPH_CAP_FILE_WR)) {
struct ceph_snap_context *snapc = ci->i_head_snapc;
- dout("queue_cap_snap %p cap_snap %p queuing under %p\n", inode,
- capsnap, snapc);
+ /*
+ * if we are a sync write, we may need to go to the snaprealm
+ * to get the current snapc.
+ */
+ if (!snapc)
+ snapc = ci->i_snap_realm->cached_context;
+
+ dout("queue_cap_snap %p cap_snap %p queuing under %p %s\n",
+ inode, capsnap, snapc, ceph_cap_string(dirty));
ihold(inode);
atomic_set(&capsnap->nref, 1);
diff --git a/fs/ceph/super.c b/fs/ceph/super.c
index f2f77fd3c14..d47c5ec7fb1 100644
--- a/fs/ceph/super.c
+++ b/fs/ceph/super.c
@@ -73,8 +73,7 @@ static int ceph_statfs(struct dentry *dentry, struct kstatfs *buf)
*/
buf->f_bsize = 1 << CEPH_BLOCK_SHIFT;
buf->f_blocks = le64_to_cpu(st.kb) >> (CEPH_BLOCK_SHIFT-10);
- buf->f_bfree = (le64_to_cpu(st.kb) - le64_to_cpu(st.kb_used)) >>
- (CEPH_BLOCK_SHIFT-10);
+ buf->f_bfree = le64_to_cpu(st.kb_avail) >> (CEPH_BLOCK_SHIFT-10);
buf->f_bavail = le64_to_cpu(st.kb_avail) >> (CEPH_BLOCK_SHIFT-10);
buf->f_files = le64_to_cpu(st.num_objects);
@@ -780,6 +779,10 @@ static int ceph_register_bdi(struct super_block *sb,
fsc->backing_dev_info.ra_pages =
(fsc->mount_options->rsize + PAGE_CACHE_SIZE - 1)
>> PAGE_SHIFT;
+ else
+ fsc->backing_dev_info.ra_pages =
+ default_backing_dev_info.ra_pages;
+
err = bdi_register(&fsc->backing_dev_info, NULL, "ceph-%d",
atomic_long_inc_return(&bdi_seq));
if (!err)
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index 30446b144e3..a23eed526f0 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -543,13 +543,16 @@ extern void ceph_reservation_status(struct ceph_fs_client *client,
/*
* we keep buffered readdir results attached to file->private_data
*/
+#define CEPH_F_SYNC 1
+#define CEPH_F_ATEND 2
+
struct ceph_file_info {
- int fmode; /* initialized on open */
+ short fmode; /* initialized on open */
+ short flags; /* CEPH_F_* */
/* readdir: position within the dir */
u32 frag;
struct ceph_mds_request *last_readdir;
- int at_end;
/* readdir: position within a frag */
unsigned offset; /* offset of last chunk, adjusted for . and .. */
@@ -789,6 +792,8 @@ extern const struct dentry_operations ceph_dentry_ops, ceph_snap_dentry_ops,
ceph_snapdir_dentry_ops;
extern int ceph_handle_notrace_create(struct inode *dir, struct dentry *dentry);
+extern int ceph_handle_snapdir(struct ceph_mds_request *req,
+ struct dentry *dentry, int err);
extern struct dentry *ceph_finish_lookup(struct ceph_mds_request *req,
struct dentry *dentry, int err);
@@ -796,7 +801,8 @@ extern void ceph_dentry_lru_add(struct dentry *dn);
extern void ceph_dentry_lru_touch(struct dentry *dn);
extern void ceph_dentry_lru_del(struct dentry *dn);
extern void ceph_invalidate_dentry_lease(struct dentry *dentry);
-extern unsigned ceph_dentry_hash(struct dentry *dn);
+extern unsigned ceph_dentry_hash(struct inode *dir, struct dentry *dn);
+extern struct inode *ceph_get_dentry_parent_inode(struct dentry *dentry);
/*
* our d_ops vary depending on whether the inode is live,
@@ -819,14 +825,6 @@ extern int ceph_encode_locks(struct inode *i, struct ceph_pagelist *p,
int p_locks, int f_locks);
extern int lock_to_ceph_filelock(struct file_lock *fl, struct ceph_filelock *c);
-static inline struct inode *get_dentry_parent_inode(struct dentry *dentry)
-{
- if (dentry && dentry->d_parent)
- return dentry->d_parent->d_inode;
-
- return NULL;
-}
-
/* debugfs.c */
extern int ceph_fs_debugfs_init(struct ceph_fs_client *client);
extern void ceph_fs_debugfs_cleanup(struct ceph_fs_client *client);
diff --git a/fs/ceph/xattr.c b/fs/ceph/xattr.c
index f42d730f1b6..96c6739a028 100644
--- a/fs/ceph/xattr.c
+++ b/fs/ceph/xattr.c
@@ -629,7 +629,7 @@ static int ceph_sync_setxattr(struct dentry *dentry, const char *name,
struct ceph_fs_client *fsc = ceph_sb_to_client(dentry->d_sb);
struct inode *inode = dentry->d_inode;
struct ceph_inode_info *ci = ceph_inode(inode);
- struct inode *parent_inode = dentry->d_parent->d_inode;
+ struct inode *parent_inode;
struct ceph_mds_request *req;
struct ceph_mds_client *mdsc = fsc->mdsc;
int err;
@@ -677,7 +677,9 @@ static int ceph_sync_setxattr(struct dentry *dentry, const char *name,
req->r_data_len = size;
dout("xattr.ver (before): %lld\n", ci->i_xattrs.version);
+ parent_inode = ceph_get_dentry_parent_inode(dentry);
err = ceph_mdsc_do_request(mdsc, parent_inode, req);
+ iput(parent_inode);
ceph_mdsc_put_request(req);
dout("xattr.ver (after): %lld\n", ci->i_xattrs.version);
@@ -788,7 +790,7 @@ static int ceph_send_removexattr(struct dentry *dentry, const char *name)
struct ceph_fs_client *fsc = ceph_sb_to_client(dentry->d_sb);
struct ceph_mds_client *mdsc = fsc->mdsc;
struct inode *inode = dentry->d_inode;
- struct inode *parent_inode = dentry->d_parent->d_inode;
+ struct inode *parent_inode;
struct ceph_mds_request *req;
int err;
@@ -802,7 +804,9 @@ static int ceph_send_removexattr(struct dentry *dentry, const char *name)
req->r_num_caps = 1;
req->r_path2 = kstrdup(name, GFP_NOFS);
+ parent_inode = ceph_get_dentry_parent_inode(dentry);
err = ceph_mdsc_do_request(mdsc, parent_inode, req);
+ iput(parent_inode);
ceph_mdsc_put_request(req);
return err;
}
diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c
index 5a0ee7f2af0..259991bd211 100644
--- a/fs/cifs/cifsencrypt.c
+++ b/fs/cifs/cifsencrypt.c
@@ -52,19 +52,29 @@ static int cifs_calculate_signature(const struct smb_hdr *cifs_pdu,
rc = crypto_shash_init(&server->secmech.sdescmd5->shash);
if (rc) {
- cERROR(1, "%s: Oould not init md5\n", __func__);
+ cERROR(1, "%s: Could not init md5\n", __func__);
return rc;
}
- crypto_shash_update(&server->secmech.sdescmd5->shash,
+ rc = crypto_shash_update(&server->secmech.sdescmd5->shash,
server->session_key.response, server->session_key.len);
+ if (rc) {
+ cERROR(1, "%s: Could not update with response\n", __func__);
+ return rc;
+ }
- crypto_shash_update(&server->secmech.sdescmd5->shash,
+ rc = crypto_shash_update(&server->secmech.sdescmd5->shash,
cifs_pdu->Protocol, be32_to_cpu(cifs_pdu->smb_buf_length));
+ if (rc) {
+ cERROR(1, "%s: Could not update with payload\n", __func__);
+ return rc;
+ }
rc = crypto_shash_final(&server->secmech.sdescmd5->shash, signature);
+ if (rc)
+ cERROR(1, "%s: Could not generate md5 hash\n", __func__);
- return 0;
+ return rc;
}
/* must be called with server->srv_mutex held */
@@ -112,12 +122,16 @@ static int cifs_calc_signature2(const struct kvec *iov, int n_vec,
rc = crypto_shash_init(&server->secmech.sdescmd5->shash);
if (rc) {
- cERROR(1, "%s: Oould not init md5\n", __func__);
+ cERROR(1, "%s: Could not init md5\n", __func__);
return rc;
}
- crypto_shash_update(&server->secmech.sdescmd5->shash,
+ rc = crypto_shash_update(&server->secmech.sdescmd5->shash,
server->session_key.response, server->session_key.len);
+ if (rc) {
+ cERROR(1, "%s: Could not update with response\n", __func__);
+ return rc;
+ }
for (i = 0; i < n_vec; i++) {
if (iov[i].iov_len == 0)
@@ -131,14 +145,24 @@ static int cifs_calc_signature2(const struct kvec *iov, int n_vec,
if (i == 0) {
if (iov[0].iov_len <= 8) /* cmd field at offset 9 */
break; /* nothing to sign or corrupt header */
+ rc =
crypto_shash_update(&server->secmech.sdescmd5->shash,
iov[i].iov_base + 4, iov[i].iov_len - 4);
- } else
+ } else {
+ rc =
crypto_shash_update(&server->secmech.sdescmd5->shash,
iov[i].iov_base, iov[i].iov_len);
+ }
+ if (rc) {
+ cERROR(1, "%s: Could not update with payload\n",
+ __func__);
+ return rc;
+ }
}
rc = crypto_shash_final(&server->secmech.sdescmd5->shash, signature);
+ if (rc)
+ cERROR(1, "%s: Could not generate md5 hash\n", __func__);
return rc;
}
@@ -463,8 +487,12 @@ static int calc_ntlmv2_hash(struct cifs_ses *ses, char *ntlmv2_hash,
/* calculate md4 hash of password */
E_md4hash(ses->password, nt_hash);
- crypto_shash_setkey(ses->server->secmech.hmacmd5, nt_hash,
+ rc = crypto_shash_setkey(ses->server->secmech.hmacmd5, nt_hash,
CIFS_NTHASH_SIZE);
+ if (rc) {
+ cERROR(1, "%s: Could not set NT Hash as a key", __func__);
+ return rc;
+ }
rc = crypto_shash_init(&ses->server->secmech.sdeschmacmd5->shash);
if (rc) {
@@ -478,13 +506,18 @@ static int calc_ntlmv2_hash(struct cifs_ses *ses, char *ntlmv2_hash,
if (user == NULL) {
cERROR(1, "calc_ntlmv2_hash: user mem alloc failure\n");
rc = -ENOMEM;
- goto calc_exit_2;
+ return rc;
}
len = cifs_strtoUCS((__le16 *)user, ses->user_name, len, nls_cp);
UniStrupr(user);
- crypto_shash_update(&ses->server->secmech.sdeschmacmd5->shash,
+ rc = crypto_shash_update(&ses->server->secmech.sdeschmacmd5->shash,
(char *)user, 2 * len);
+ kfree(user);
+ if (rc) {
+ cERROR(1, "%s: Could not update with user\n", __func__);
+ return rc;
+ }
/* convert ses->domainName to unicode and uppercase */
if (ses->domainName) {
@@ -494,13 +527,19 @@ static int calc_ntlmv2_hash(struct cifs_ses *ses, char *ntlmv2_hash,
if (domain == NULL) {
cERROR(1, "calc_ntlmv2_hash: domain mem alloc failure");
rc = -ENOMEM;
- goto calc_exit_1;
+ return rc;
}
len = cifs_strtoUCS((__le16 *)domain, ses->domainName, len,
nls_cp);
+ rc =
crypto_shash_update(&ses->server->secmech.sdeschmacmd5->shash,
(char *)domain, 2 * len);
kfree(domain);
+ if (rc) {
+ cERROR(1, "%s: Could not update with domain\n",
+ __func__);
+ return rc;
+ }
} else if (ses->serverName) {
len = strlen(ses->serverName);
@@ -508,21 +547,26 @@ static int calc_ntlmv2_hash(struct cifs_ses *ses, char *ntlmv2_hash,
if (server == NULL) {
cERROR(1, "calc_ntlmv2_hash: server mem alloc failure");
rc = -ENOMEM;
- goto calc_exit_1;
+ return rc;
}
len = cifs_strtoUCS((__le16 *)server, ses->serverName, len,
nls_cp);
+ rc =
crypto_shash_update(&ses->server->secmech.sdeschmacmd5->shash,
(char *)server, 2 * len);
kfree(server);
+ if (rc) {
+ cERROR(1, "%s: Could not update with server\n",
+ __func__);
+ return rc;
+ }
}
rc = crypto_shash_final(&ses->server->secmech.sdeschmacmd5->shash,
ntlmv2_hash);
+ if (rc)
+ cERROR(1, "%s: Could not generate md5 hash\n", __func__);
-calc_exit_1:
- kfree(user);
-calc_exit_2:
return rc;
}
@@ -537,8 +581,12 @@ CalcNTLMv2_response(const struct cifs_ses *ses, char *ntlmv2_hash)
return -1;
}
- crypto_shash_setkey(ses->server->secmech.hmacmd5,
+ rc = crypto_shash_setkey(ses->server->secmech.hmacmd5,
ntlmv2_hash, CIFS_HMAC_MD5_HASH_SIZE);
+ if (rc) {
+ cERROR(1, "%s: Could not set NTLMV2 Hash as a key", __func__);
+ return rc;
+ }
rc = crypto_shash_init(&ses->server->secmech.sdeschmacmd5->shash);
if (rc) {
@@ -552,11 +600,17 @@ CalcNTLMv2_response(const struct cifs_ses *ses, char *ntlmv2_hash)
else
memcpy(ses->auth_key.response + offset,
ses->server->cryptkey, CIFS_SERVER_CHALLENGE_SIZE);
- crypto_shash_update(&ses->server->secmech.sdeschmacmd5->shash,
+ rc = crypto_shash_update(&ses->server->secmech.sdeschmacmd5->shash,
ses->auth_key.response + offset, ses->auth_key.len - offset);
+ if (rc) {
+ cERROR(1, "%s: Could not update with response\n", __func__);
+ return rc;
+ }
rc = crypto_shash_final(&ses->server->secmech.sdeschmacmd5->shash,
ses->auth_key.response + CIFS_SESS_KEY_SIZE);
+ if (rc)
+ cERROR(1, "%s: Could not generate md5 hash\n", __func__);
return rc;
}
@@ -626,8 +680,12 @@ setup_ntlmv2_rsp(struct cifs_ses *ses, const struct nls_table *nls_cp)
}
/* now calculate the session key for NTLMv2 */
- crypto_shash_setkey(ses->server->secmech.hmacmd5,
+ rc = crypto_shash_setkey(ses->server->secmech.hmacmd5,
ntlmv2_hash, CIFS_HMAC_MD5_HASH_SIZE);
+ if (rc) {
+ cERROR(1, "%s: Could not set NTLMV2 Hash as a key", __func__);
+ goto setup_ntlmv2_rsp_ret;
+ }
rc = crypto_shash_init(&ses->server->secmech.sdeschmacmd5->shash);
if (rc) {
@@ -635,12 +693,18 @@ setup_ntlmv2_rsp(struct cifs_ses *ses, const struct nls_table *nls_cp)
goto setup_ntlmv2_rsp_ret;
}
- crypto_shash_update(&ses->server->secmech.sdeschmacmd5->shash,
+ rc = crypto_shash_update(&ses->server->secmech.sdeschmacmd5->shash,
ses->auth_key.response + CIFS_SESS_KEY_SIZE,
CIFS_HMAC_MD5_HASH_SIZE);
+ if (rc) {
+ cERROR(1, "%s: Could not update with response\n", __func__);
+ goto setup_ntlmv2_rsp_ret;
+ }
rc = crypto_shash_final(&ses->server->secmech.sdeschmacmd5->shash,
ses->auth_key.response);
+ if (rc)
+ cERROR(1, "%s: Could not generate md5 hash\n", __func__);
setup_ntlmv2_rsp_ret:
kfree(tiblob);
@@ -668,8 +732,12 @@ calc_seckey(struct cifs_ses *ses)
desc.tfm = tfm_arc4;
- crypto_blkcipher_setkey(tfm_arc4, ses->auth_key.response,
+ rc = crypto_blkcipher_setkey(tfm_arc4, ses->auth_key.response,
CIFS_SESS_KEY_SIZE);
+ if (rc) {
+ cERROR(1, "%s: Could not set response as a key", __func__);
+ return rc;
+ }
sg_init_one(&sgin, sec_key, CIFS_SESS_KEY_SIZE);
sg_init_one(&sgout, ses->ntlmssp->ciphertext, CIFS_CPHTXT_SIZE);
@@ -688,7 +756,7 @@ calc_seckey(struct cifs_ses *ses)
crypto_free_blkcipher(tfm_arc4);
- return 0;
+ return rc;
}
void
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 6255fa812c7..1fcf4e5b311 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -501,7 +501,7 @@ struct cifs_search_info {
char *ntwrk_buf_start;
char *srch_entries_start;
char *last_entry;
- char *presume_name;
+ const char *presume_name;
unsigned int resume_name_len;
bool endOfSearch:1;
bool emptyDir:1;
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index 14d602f178c..ae576fbb514 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -57,11 +57,6 @@ build_path_from_dentry(struct dentry *direntry)
struct cifs_tcon *tcon = cifs_sb_master_tcon(cifs_sb);
unsigned seq;
- if (direntry == NULL)
- return NULL; /* not much we can do if dentry is freed and
- we need to reopen the file after it was closed implicitly
- when the server crashed */
-
dirsep = CIFS_DIR_SEP(cifs_sb);
if (tcon->Flags & SMB_SHARE_IS_IN_DFS)
dfsplen = strnlen(tcon->treeName, MAX_TREE_SIZE + 1);
@@ -641,7 +636,7 @@ lookup_out:
static int
cifs_d_revalidate(struct dentry *direntry, struct nameidata *nd)
{
- if (nd->flags & LOOKUP_RCU)
+ if (nd && (nd->flags & LOOKUP_RCU))
return -ECHILD;
if (direntry->d_inode) {
diff --git a/fs/cifs/link.c b/fs/cifs/link.c
index 556b1a0b54d..db3f18cdf02 100644
--- a/fs/cifs/link.c
+++ b/fs/cifs/link.c
@@ -74,8 +74,14 @@ symlink_hash(unsigned int link_len, const char *link_str, u8 *md5_hash)
cERROR(1, "%s: Could not init md5 shash\n", __func__);
goto symlink_hash_err;
}
- crypto_shash_update(&sdescmd5->shash, link_str, link_len);
+ rc = crypto_shash_update(&sdescmd5->shash, link_str, link_len);
+ if (rc) {
+ cERROR(1, "%s: Could not update iwth link_str\n", __func__);
+ goto symlink_hash_err;
+ }
rc = crypto_shash_final(&sdescmd5->shash, md5_hash);
+ if (rc)
+ cERROR(1, "%s: Could not generate md5 hash\n", __func__);
symlink_hash_err:
crypto_free_shash(md5);
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index 965a3af186a..5de03ec2014 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -4,6 +4,7 @@
* Directory search handling
*
* Copyright (C) International Business Machines Corp., 2004, 2008
+ * Copyright (C) Red Hat, Inc., 2011
* Author(s): Steve French (sfrench@us.ibm.com)
*
* This library is free software; you can redistribute it and/or modify
@@ -290,10 +291,10 @@ error_exit:
}
/* return length of unicode string in bytes */
-static int cifs_unicode_bytelen(char *str)
+static int cifs_unicode_bytelen(const char *str)
{
int len;
- __le16 *ustr = (__le16 *)str;
+ const __le16 *ustr = (const __le16 *)str;
for (len = 0; len <= PATH_MAX; len++) {
if (ustr[len] == 0)
@@ -334,78 +335,128 @@ static char *nxt_dir_entry(char *old_entry, char *end_of_smb, int level)
}
+struct cifs_dirent {
+ const char *name;
+ size_t namelen;
+ u32 resume_key;
+ u64 ino;
+};
+
+static void cifs_fill_dirent_unix(struct cifs_dirent *de,
+ const FILE_UNIX_INFO *info, bool is_unicode)
+{
+ de->name = &info->FileName[0];
+ if (is_unicode)
+ de->namelen = cifs_unicode_bytelen(de->name);
+ else
+ de->namelen = strnlen(de->name, PATH_MAX);
+ de->resume_key = info->ResumeKey;
+ de->ino = le64_to_cpu(info->basic.UniqueId);
+}
+
+static void cifs_fill_dirent_dir(struct cifs_dirent *de,
+ const FILE_DIRECTORY_INFO *info)
+{
+ de->name = &info->FileName[0];
+ de->namelen = le32_to_cpu(info->FileNameLength);
+ de->resume_key = info->FileIndex;
+}
+
+static void cifs_fill_dirent_full(struct cifs_dirent *de,
+ const FILE_FULL_DIRECTORY_INFO *info)
+{
+ de->name = &info->FileName[0];
+ de->namelen = le32_to_cpu(info->FileNameLength);
+ de->resume_key = info->FileIndex;
+}
+
+static void cifs_fill_dirent_search(struct cifs_dirent *de,
+ const SEARCH_ID_FULL_DIR_INFO *info)
+{
+ de->name = &info->FileName[0];
+ de->namelen = le32_to_cpu(info->FileNameLength);
+ de->resume_key = info->FileIndex;
+ de->ino = le64_to_cpu(info->UniqueId);
+}
+
+static void cifs_fill_dirent_both(struct cifs_dirent *de,
+ const FILE_BOTH_DIRECTORY_INFO *info)
+{
+ de->name = &info->FileName[0];
+ de->namelen = le32_to_cpu(info->FileNameLength);
+ de->resume_key = info->FileIndex;
+}
+
+static void cifs_fill_dirent_std(struct cifs_dirent *de,
+ const FIND_FILE_STANDARD_INFO *info)
+{
+ de->name = &info->FileName[0];
+ /* one byte length, no endianess conversion */
+ de->namelen = info->FileNameLength;
+ de->resume_key = info->ResumeKey;
+}
+
+static int cifs_fill_dirent(struct cifs_dirent *de, const void *info,
+ u16 level, bool is_unicode)
+{
+ memset(de, 0, sizeof(*de));
+
+ switch (level) {
+ case SMB_FIND_FILE_UNIX:
+ cifs_fill_dirent_unix(de, info, is_unicode);
+ break;
+ case SMB_FIND_FILE_DIRECTORY_INFO:
+ cifs_fill_dirent_dir(de, info);
+ break;
+ case SMB_FIND_FILE_FULL_DIRECTORY_INFO:
+ cifs_fill_dirent_full(de, info);
+ break;
+ case SMB_FIND_FILE_ID_FULL_DIR_INFO:
+ cifs_fill_dirent_search(de, info);
+ break;
+ case SMB_FIND_FILE_BOTH_DIRECTORY_INFO:
+ cifs_fill_dirent_both(de, info);
+ break;
+ case SMB_FIND_FILE_INFO_STANDARD:
+ cifs_fill_dirent_std(de, info);
+ break;
+ default:
+ cFYI(1, "Unknown findfirst level %d", level);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
#define UNICODE_DOT cpu_to_le16(0x2e)
/* return 0 if no match and 1 for . (current directory) and 2 for .. (parent) */
-static int cifs_entry_is_dot(char *current_entry, struct cifsFileInfo *cfile)
+static int cifs_entry_is_dot(struct cifs_dirent *de, bool is_unicode)
{
int rc = 0;
- char *filename = NULL;
- int len = 0;
-
- if (cfile->srch_inf.info_level == SMB_FIND_FILE_UNIX) {
- FILE_UNIX_INFO *pFindData = (FILE_UNIX_INFO *)current_entry;
- filename = &pFindData->FileName[0];
- if (cfile->srch_inf.unicode) {
- len = cifs_unicode_bytelen(filename);
- } else {
- /* BB should we make this strnlen of PATH_MAX? */
- len = strnlen(filename, 5);
- }
- } else if (cfile->srch_inf.info_level == SMB_FIND_FILE_DIRECTORY_INFO) {
- FILE_DIRECTORY_INFO *pFindData =
- (FILE_DIRECTORY_INFO *)current_entry;
- filename = &pFindData->FileName[0];
- len = le32_to_cpu(pFindData->FileNameLength);
- } else if (cfile->srch_inf.info_level ==
- SMB_FIND_FILE_FULL_DIRECTORY_INFO) {
- FILE_FULL_DIRECTORY_INFO *pFindData =
- (FILE_FULL_DIRECTORY_INFO *)current_entry;
- filename = &pFindData->FileName[0];
- len = le32_to_cpu(pFindData->FileNameLength);
- } else if (cfile->srch_inf.info_level ==
- SMB_FIND_FILE_ID_FULL_DIR_INFO) {
- SEARCH_ID_FULL_DIR_INFO *pFindData =
- (SEARCH_ID_FULL_DIR_INFO *)current_entry;
- filename = &pFindData->FileName[0];
- len = le32_to_cpu(pFindData->FileNameLength);
- } else if (cfile->srch_inf.info_level ==
- SMB_FIND_FILE_BOTH_DIRECTORY_INFO) {
- FILE_BOTH_DIRECTORY_INFO *pFindData =
- (FILE_BOTH_DIRECTORY_INFO *)current_entry;
- filename = &pFindData->FileName[0];
- len = le32_to_cpu(pFindData->FileNameLength);
- } else if (cfile->srch_inf.info_level == SMB_FIND_FILE_INFO_STANDARD) {
- FIND_FILE_STANDARD_INFO *pFindData =
- (FIND_FILE_STANDARD_INFO *)current_entry;
- filename = &pFindData->FileName[0];
- len = pFindData->FileNameLength;
- } else {
- cFYI(1, "Unknown findfirst level %d",
- cfile->srch_inf.info_level);
- }
- if (filename) {
- if (cfile->srch_inf.unicode) {
- __le16 *ufilename = (__le16 *)filename;
- if (len == 2) {
- /* check for . */
- if (ufilename[0] == UNICODE_DOT)
- rc = 1;
- } else if (len == 4) {
- /* check for .. */
- if ((ufilename[0] == UNICODE_DOT)
- && (ufilename[1] == UNICODE_DOT))
- rc = 2;
- }
- } else /* ASCII */ {
- if (len == 1) {
- if (filename[0] == '.')
- rc = 1;
- } else if (len == 2) {
- if ((filename[0] == '.') && (filename[1] == '.'))
- rc = 2;
- }
+ if (!de->name)
+ return 0;
+
+ if (is_unicode) {
+ __le16 *ufilename = (__le16 *)de->name;
+ if (de->namelen == 2) {
+ /* check for . */
+ if (ufilename[0] == UNICODE_DOT)
+ rc = 1;
+ } else if (de->namelen == 4) {
+ /* check for .. */
+ if (ufilename[0] == UNICODE_DOT &&
+ ufilename[1] == UNICODE_DOT)
+ rc = 2;
+ }
+ } else /* ASCII */ {
+ if (de->namelen == 1) {
+ if (de->name[0] == '.')
+ rc = 1;
+ } else if (de->namelen == 2) {
+ if (de->name[0] == '.' && de->name[1] == '.')
+ rc = 2;
}
}
@@ -427,66 +478,18 @@ static int is_dir_changed(struct file *file)
}
static int cifs_save_resume_key(const char *current_entry,
- struct cifsFileInfo *cifsFile)
+ struct cifsFileInfo *file_info)
{
- int rc = 0;
- unsigned int len = 0;
- __u16 level;
- char *filename;
-
- if ((cifsFile == NULL) || (current_entry == NULL))
- return -EINVAL;
-
- level = cifsFile->srch_inf.info_level;
-
- if (level == SMB_FIND_FILE_UNIX) {
- FILE_UNIX_INFO *pFindData = (FILE_UNIX_INFO *)current_entry;
+ struct cifs_dirent de;
+ int rc;
- filename = &pFindData->FileName[0];
- if (cifsFile->srch_inf.unicode) {
- len = cifs_unicode_bytelen(filename);
- } else {
- /* BB should we make this strnlen of PATH_MAX? */
- len = strnlen(filename, PATH_MAX);
- }
- cifsFile->srch_inf.resume_key = pFindData->ResumeKey;
- } else if (level == SMB_FIND_FILE_DIRECTORY_INFO) {
- FILE_DIRECTORY_INFO *pFindData =
- (FILE_DIRECTORY_INFO *)current_entry;
- filename = &pFindData->FileName[0];
- len = le32_to_cpu(pFindData->FileNameLength);
- cifsFile->srch_inf.resume_key = pFindData->FileIndex;
- } else if (level == SMB_FIND_FILE_FULL_DIRECTORY_INFO) {
- FILE_FULL_DIRECTORY_INFO *pFindData =
- (FILE_FULL_DIRECTORY_INFO *)current_entry;
- filename = &pFindData->FileName[0];
- len = le32_to_cpu(pFindData->FileNameLength);
- cifsFile->srch_inf.resume_key = pFindData->FileIndex;
- } else if (level == SMB_FIND_FILE_ID_FULL_DIR_INFO) {
- SEARCH_ID_FULL_DIR_INFO *pFindData =
- (SEARCH_ID_FULL_DIR_INFO *)current_entry;
- filename = &pFindData->FileName[0];
- len = le32_to_cpu(pFindData->FileNameLength);
- cifsFile->srch_inf.resume_key = pFindData->FileIndex;
- } else if (level == SMB_FIND_FILE_BOTH_DIRECTORY_INFO) {
- FILE_BOTH_DIRECTORY_INFO *pFindData =
- (FILE_BOTH_DIRECTORY_INFO *)current_entry;
- filename = &pFindData->FileName[0];
- len = le32_to_cpu(pFindData->FileNameLength);
- cifsFile->srch_inf.resume_key = pFindData->FileIndex;
- } else if (level == SMB_FIND_FILE_INFO_STANDARD) {
- FIND_FILE_STANDARD_INFO *pFindData =
- (FIND_FILE_STANDARD_INFO *)current_entry;
- filename = &pFindData->FileName[0];
- /* one byte length, no name conversion */
- len = (unsigned int)pFindData->FileNameLength;
- cifsFile->srch_inf.resume_key = pFindData->ResumeKey;
- } else {
- cFYI(1, "Unknown findfirst level %d", level);
- return -EINVAL;
+ rc = cifs_fill_dirent(&de, current_entry, file_info->srch_inf.info_level,
+ file_info->srch_inf.unicode);
+ if (!rc) {
+ file_info->srch_inf.presume_name = de.name;
+ file_info->srch_inf.resume_name_len = de.namelen;
+ file_info->srch_inf.resume_key = de.resume_key;
}
- cifsFile->srch_inf.resume_name_len = len;
- cifsFile->srch_inf.presume_name = filename;
return rc;
}
@@ -605,136 +608,70 @@ static int find_cifs_entry(const int xid, struct cifs_tcon *pTcon,
return rc;
}
-/* inode num, inode type and filename returned */
-static int cifs_get_name_from_search_buf(struct qstr *pqst,
- char *current_entry, __u16 level, unsigned int unicode,
- struct cifs_sb_info *cifs_sb, unsigned int max_len, __u64 *pinum)
+static int cifs_filldir(char *find_entry, struct file *file, filldir_t filldir,
+ void *dirent, char *scratch_buf, unsigned int max_len)
{
+ struct cifsFileInfo *file_info = file->private_data;
+ struct super_block *sb = file->f_path.dentry->d_sb;
+ struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
+ struct cifs_dirent de = { NULL, };
+ struct cifs_fattr fattr;
+ struct dentry *dentry;
+ struct qstr name;
int rc = 0;
- unsigned int len = 0;
- char *filename;
- struct nls_table *nlt = cifs_sb->local_nls;
-
- *pinum = 0;
-
- if (level == SMB_FIND_FILE_UNIX) {
- FILE_UNIX_INFO *pFindData = (FILE_UNIX_INFO *)current_entry;
-
- filename = &pFindData->FileName[0];
- if (unicode) {
- len = cifs_unicode_bytelen(filename);
- } else {
- /* BB should we make this strnlen of PATH_MAX? */
- len = strnlen(filename, PATH_MAX);
- }
+ ino_t ino;
- *pinum = le64_to_cpu(pFindData->basic.UniqueId);
- } else if (level == SMB_FIND_FILE_DIRECTORY_INFO) {
- FILE_DIRECTORY_INFO *pFindData =
- (FILE_DIRECTORY_INFO *)current_entry;
- filename = &pFindData->FileName[0];
- len = le32_to_cpu(pFindData->FileNameLength);
- } else if (level == SMB_FIND_FILE_FULL_DIRECTORY_INFO) {
- FILE_FULL_DIRECTORY_INFO *pFindData =
- (FILE_FULL_DIRECTORY_INFO *)current_entry;
- filename = &pFindData->FileName[0];
- len = le32_to_cpu(pFindData->FileNameLength);
- } else if (level == SMB_FIND_FILE_ID_FULL_DIR_INFO) {
- SEARCH_ID_FULL_DIR_INFO *pFindData =
- (SEARCH_ID_FULL_DIR_INFO *)current_entry;
- filename = &pFindData->FileName[0];
- len = le32_to_cpu(pFindData->FileNameLength);
- *pinum = le64_to_cpu(pFindData->UniqueId);
- } else if (level == SMB_FIND_FILE_BOTH_DIRECTORY_INFO) {
- FILE_BOTH_DIRECTORY_INFO *pFindData =
- (FILE_BOTH_DIRECTORY_INFO *)current_entry;
- filename = &pFindData->FileName[0];
- len = le32_to_cpu(pFindData->FileNameLength);
- } else if (level == SMB_FIND_FILE_INFO_STANDARD) {
- FIND_FILE_STANDARD_INFO *pFindData =
- (FIND_FILE_STANDARD_INFO *)current_entry;
- filename = &pFindData->FileName[0];
- /* one byte length, no name conversion */
- len = (unsigned int)pFindData->FileNameLength;
- } else {
- cFYI(1, "Unknown findfirst level %d", level);
- return -EINVAL;
- }
+ rc = cifs_fill_dirent(&de, find_entry, file_info->srch_inf.info_level,
+ file_info->srch_inf.unicode);
+ if (rc)
+ return rc;
- if (len > max_len) {
- cERROR(1, "bad search response length %d past smb end", len);
+ if (de.namelen > max_len) {
+ cERROR(1, "bad search response length %zd past smb end",
+ de.namelen);
return -EINVAL;
}
- if (unicode) {
- pqst->len = cifs_from_ucs2((char *) pqst->name,
- (__le16 *) filename,
- UNICODE_NAME_MAX,
- min(len, max_len), nlt,
- cifs_sb->mnt_cifs_flags &
- CIFS_MOUNT_MAP_SPECIAL_CHR);
- pqst->len -= nls_nullsize(nlt);
- } else {
- pqst->name = filename;
- pqst->len = len;
- }
- return rc;
-}
-
-static int cifs_filldir(char *pfindEntry, struct file *file, filldir_t filldir,
- void *direntry, char *scratch_buf, unsigned int max_len)
-{
- int rc = 0;
- struct qstr qstring;
- struct cifsFileInfo *pCifsF;
- u64 inum;
- ino_t ino;
- struct super_block *sb;
- struct cifs_sb_info *cifs_sb;
- struct dentry *tmp_dentry;
- struct cifs_fattr fattr;
-
- /* get filename and len into qstring */
- /* get dentry */
- /* decide whether to create and populate ionde */
- if ((direntry == NULL) || (file == NULL))
- return -EINVAL;
-
- pCifsF = file->private_data;
-
- if ((scratch_buf == NULL) || (pfindEntry == NULL) || (pCifsF == NULL))
- return -ENOENT;
-
- rc = cifs_entry_is_dot(pfindEntry, pCifsF);
/* skip . and .. since we added them first */
- if (rc != 0)
+ if (cifs_entry_is_dot(&de, file_info->srch_inf.unicode))
return 0;
- sb = file->f_path.dentry->d_sb;
- cifs_sb = CIFS_SB(sb);
-
- qstring.name = scratch_buf;
- rc = cifs_get_name_from_search_buf(&qstring, pfindEntry,
- pCifsF->srch_inf.info_level,
- pCifsF->srch_inf.unicode, cifs_sb,
- max_len, &inum /* returned */);
+ if (file_info->srch_inf.unicode) {
+ struct nls_table *nlt = cifs_sb->local_nls;
- if (rc)
- return rc;
+ name.name = scratch_buf;
+ name.len =
+ cifs_from_ucs2((char *)name.name, (__le16 *)de.name,
+ UNICODE_NAME_MAX,
+ min(de.namelen, (size_t)max_len), nlt,
+ cifs_sb->mnt_cifs_flags &
+ CIFS_MOUNT_MAP_SPECIAL_CHR);
+ name.len -= nls_nullsize(nlt);
+ } else {
+ name.name = de.name;
+ name.len = de.namelen;
+ }
- if (pCifsF->srch_inf.info_level == SMB_FIND_FILE_UNIX)
+ switch (file_info->srch_inf.info_level) {
+ case SMB_FIND_FILE_UNIX:
cifs_unix_basic_to_fattr(&fattr,
- &((FILE_UNIX_INFO *) pfindEntry)->basic,
- cifs_sb);
- else if (pCifsF->srch_inf.info_level == SMB_FIND_FILE_INFO_STANDARD)
- cifs_std_info_to_fattr(&fattr, (FIND_FILE_STANDARD_INFO *)
- pfindEntry, cifs_sb);
- else
- cifs_dir_info_to_fattr(&fattr, (FILE_DIRECTORY_INFO *)
- pfindEntry, cifs_sb);
+ &((FILE_UNIX_INFO *)find_entry)->basic,
+ cifs_sb);
+ break;
+ case SMB_FIND_FILE_INFO_STANDARD:
+ cifs_std_info_to_fattr(&fattr,
+ (FIND_FILE_STANDARD_INFO *)find_entry,
+ cifs_sb);
+ break;
+ default:
+ cifs_dir_info_to_fattr(&fattr,
+ (FILE_DIRECTORY_INFO *)find_entry,
+ cifs_sb);
+ break;
+ }
- if (inum && (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM)) {
- fattr.cf_uniqueid = inum;
+ if (de.ino && (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM)) {
+ fattr.cf_uniqueid = de.ino;
} else {
fattr.cf_uniqueid = iunique(sb, ROOT_I);
cifs_autodisable_serverino(cifs_sb);
@@ -750,12 +687,12 @@ static int cifs_filldir(char *pfindEntry, struct file *file, filldir_t filldir,
fattr.cf_flags |= CIFS_FATTR_NEED_REVAL;
ino = cifs_uniqueid_to_ino_t(fattr.cf_uniqueid);
- tmp_dentry = cifs_readdir_lookup(file->f_dentry, &qstring, &fattr);
+ dentry = cifs_readdir_lookup(file->f_dentry, &name, &fattr);
- rc = filldir(direntry, qstring.name, qstring.len, file->f_pos,
- ino, fattr.cf_dtype);
+ rc = filldir(dirent, name.name, name.len, file->f_pos, ino,
+ fattr.cf_dtype);
- dput(tmp_dentry);
+ dput(dentry);
return rc;
}
diff --git a/fs/cifs/smbencrypt.c b/fs/cifs/smbencrypt.c
index 1c5b770c314..42b9fff4875 100644
--- a/fs/cifs/smbencrypt.c
+++ b/fs/cifs/smbencrypt.c
@@ -157,8 +157,14 @@ mdfour(unsigned char *md4_hash, unsigned char *link_str, int link_len)
cERROR(1, "%s: Could not init md4 shash\n", __func__);
goto mdfour_err;
}
- crypto_shash_update(&sdescmd4->shash, link_str, link_len);
+ rc = crypto_shash_update(&sdescmd4->shash, link_str, link_len);
+ if (rc) {
+ cERROR(1, "%s: Could not update with link_str\n", __func__);
+ goto mdfour_err;
+ }
rc = crypto_shash_final(&sdescmd4->shash, md4_hash);
+ if (rc)
+ cERROR(1, "%s: Could not genereate md4 hash\n", __func__);
mdfour_err:
crypto_free_shash(md4);
diff --git a/fs/compat.c b/fs/compat.c
index 0ea00832de2..0b48d018e38 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -1675,256 +1675,10 @@ asmlinkage long compat_sys_ppoll(struct pollfd __user *ufds,
}
#endif /* HAVE_SET_RESTORE_SIGMASK */
-#if (defined(CONFIG_NFSD) || defined(CONFIG_NFSD_MODULE)) && !defined(CONFIG_NFSD_DEPRECATED)
-/* Stuff for NFS server syscalls... */
-struct compat_nfsctl_svc {
- u16 svc32_port;
- s32 svc32_nthreads;
-};
-
-struct compat_nfsctl_client {
- s8 cl32_ident[NFSCLNT_IDMAX+1];
- s32 cl32_naddr;
- struct in_addr cl32_addrlist[NFSCLNT_ADDRMAX];
- s32 cl32_fhkeytype;
- s32 cl32_fhkeylen;
- u8 cl32_fhkey[NFSCLNT_KEYMAX];
-};
-
-struct compat_nfsctl_export {
- char ex32_client[NFSCLNT_IDMAX+1];
- char ex32_path[NFS_MAXPATHLEN+1];
- compat_dev_t ex32_dev;
- compat_ino_t ex32_ino;
- compat_int_t ex32_flags;
- __compat_uid_t ex32_anon_uid;
- __compat_gid_t ex32_anon_gid;
-};
-
-struct compat_nfsctl_fdparm {
- struct sockaddr gd32_addr;
- s8 gd32_path[NFS_MAXPATHLEN+1];
- compat_int_t gd32_version;
-};
-
-struct compat_nfsctl_fsparm {
- struct sockaddr gd32_addr;
- s8 gd32_path[NFS_MAXPATHLEN+1];
- compat_int_t gd32_maxlen;
-};
-
-struct compat_nfsctl_arg {
- compat_int_t ca32_version; /* safeguard */
- union {
- struct compat_nfsctl_svc u32_svc;
- struct compat_nfsctl_client u32_client;
- struct compat_nfsctl_export u32_export;
- struct compat_nfsctl_fdparm u32_getfd;
- struct compat_nfsctl_fsparm u32_getfs;
- } u;
-#define ca32_svc u.u32_svc
-#define ca32_client u.u32_client
-#define ca32_export u.u32_export
-#define ca32_getfd u.u32_getfd
-#define ca32_getfs u.u32_getfs
-};
-
-union compat_nfsctl_res {
- __u8 cr32_getfh[NFS_FHSIZE];
- struct knfsd_fh cr32_getfs;
-};
-
-static int compat_nfs_svc_trans(struct nfsctl_arg *karg,
- struct compat_nfsctl_arg __user *arg)
-{
- if (!access_ok(VERIFY_READ, &arg->ca32_svc, sizeof(arg->ca32_svc)) ||
- get_user(karg->ca_version, &arg->ca32_version) ||
- __get_user(karg->ca_svc.svc_port, &arg->ca32_svc.svc32_port) ||
- __get_user(karg->ca_svc.svc_nthreads,
- &arg->ca32_svc.svc32_nthreads))
- return -EFAULT;
- return 0;
-}
-
-static int compat_nfs_clnt_trans(struct nfsctl_arg *karg,
- struct compat_nfsctl_arg __user *arg)
-{
- if (!access_ok(VERIFY_READ, &arg->ca32_client,
- sizeof(arg->ca32_client)) ||
- get_user(karg->ca_version, &arg->ca32_version) ||
- __copy_from_user(&karg->ca_client.cl_ident[0],
- &arg->ca32_client.cl32_ident[0],
- NFSCLNT_IDMAX) ||
- __get_user(karg->ca_client.cl_naddr,
- &arg->ca32_client.cl32_naddr) ||
- __copy_from_user(&karg->ca_client.cl_addrlist[0],
- &arg->ca32_client.cl32_addrlist[0],
- (sizeof(struct in_addr) * NFSCLNT_ADDRMAX)) ||
- __get_user(karg->ca_client.cl_fhkeytype,
- &arg->ca32_client.cl32_fhkeytype) ||
- __get_user(karg->ca_client.cl_fhkeylen,
- &arg->ca32_client.cl32_fhkeylen) ||
- __copy_from_user(&karg->ca_client.cl_fhkey[0],
- &arg->ca32_client.cl32_fhkey[0],
- NFSCLNT_KEYMAX))
- return -EFAULT;
-
- return 0;
-}
-
-static int compat_nfs_exp_trans(struct nfsctl_arg *karg,
- struct compat_nfsctl_arg __user *arg)
-{
- if (!access_ok(VERIFY_READ, &arg->ca32_export,
- sizeof(arg->ca32_export)) ||
- get_user(karg->ca_version, &arg->ca32_version) ||
- __copy_from_user(&karg->ca_export.ex_client[0],
- &arg->ca32_export.ex32_client[0],
- NFSCLNT_IDMAX) ||
- __copy_from_user(&karg->ca_export.ex_path[0],
- &arg->ca32_export.ex32_path[0],
- NFS_MAXPATHLEN) ||
- __get_user(karg->ca_export.ex_dev,
- &arg->ca32_export.ex32_dev) ||
- __get_user(karg->ca_export.ex_ino,
- &arg->ca32_export.ex32_ino) ||
- __get_user(karg->ca_export.ex_flags,
- &arg->ca32_export.ex32_flags) ||
- __get_user(karg->ca_export.ex_anon_uid,
- &arg->ca32_export.ex32_anon_uid) ||
- __get_user(karg->ca_export.ex_anon_gid,
- &arg->ca32_export.ex32_anon_gid))
- return -EFAULT;
- SET_UID(karg->ca_export.ex_anon_uid, karg->ca_export.ex_anon_uid);
- SET_GID(karg->ca_export.ex_anon_gid, karg->ca_export.ex_anon_gid);
-
- return 0;
-}
-
-static int compat_nfs_getfd_trans(struct nfsctl_arg *karg,
- struct compat_nfsctl_arg __user *arg)
-{
- if (!access_ok(VERIFY_READ, &arg->ca32_getfd,
- sizeof(arg->ca32_getfd)) ||
- get_user(karg->ca_version, &arg->ca32_version) ||
- __copy_from_user(&karg->ca_getfd.gd_addr,
- &arg->ca32_getfd.gd32_addr,
- (sizeof(struct sockaddr))) ||
- __copy_from_user(&karg->ca_getfd.gd_path,
- &arg->ca32_getfd.gd32_path,
- (NFS_MAXPATHLEN+1)) ||
- __get_user(karg->ca_getfd.gd_version,
- &arg->ca32_getfd.gd32_version))
- return -EFAULT;
-
- return 0;
-}
-
-static int compat_nfs_getfs_trans(struct nfsctl_arg *karg,
- struct compat_nfsctl_arg __user *arg)
-{
- if (!access_ok(VERIFY_READ,&arg->ca32_getfs,sizeof(arg->ca32_getfs)) ||
- get_user(karg->ca_version, &arg->ca32_version) ||
- __copy_from_user(&karg->ca_getfs.gd_addr,
- &arg->ca32_getfs.gd32_addr,
- (sizeof(struct sockaddr))) ||
- __copy_from_user(&karg->ca_getfs.gd_path,
- &arg->ca32_getfs.gd32_path,
- (NFS_MAXPATHLEN+1)) ||
- __get_user(karg->ca_getfs.gd_maxlen,
- &arg->ca32_getfs.gd32_maxlen))
- return -EFAULT;
-
- return 0;
-}
-
-/* This really doesn't need translations, we are only passing
- * back a union which contains opaque nfs file handle data.
- */
-static int compat_nfs_getfh_res_trans(union nfsctl_res *kres,
- union compat_nfsctl_res __user *res)
-{
- int err;
-
- err = copy_to_user(res, kres, sizeof(*res));
-
- return (err) ? -EFAULT : 0;
-}
-
-asmlinkage long compat_sys_nfsservctl(int cmd,
- struct compat_nfsctl_arg __user *arg,
- union compat_nfsctl_res __user *res)
-{
- struct nfsctl_arg *karg;
- union nfsctl_res *kres;
- mm_segment_t oldfs;
- int err;
-
- karg = kmalloc(sizeof(*karg), GFP_USER);
- kres = kmalloc(sizeof(*kres), GFP_USER);
- if(!karg || !kres) {
- err = -ENOMEM;
- goto done;
- }
-
- switch(cmd) {
- case NFSCTL_SVC:
- err = compat_nfs_svc_trans(karg, arg);
- break;
-
- case NFSCTL_ADDCLIENT:
- err = compat_nfs_clnt_trans(karg, arg);
- break;
-
- case NFSCTL_DELCLIENT:
- err = compat_nfs_clnt_trans(karg, arg);
- break;
-
- case NFSCTL_EXPORT:
- case NFSCTL_UNEXPORT:
- err = compat_nfs_exp_trans(karg, arg);
- break;
-
- case NFSCTL_GETFD:
- err = compat_nfs_getfd_trans(karg, arg);
- break;
-
- case NFSCTL_GETFS:
- err = compat_nfs_getfs_trans(karg, arg);
- break;
-
- default:
- err = -EINVAL;
- break;
- }
-
- if (err)
- goto done;
-
- oldfs = get_fs();
- set_fs(KERNEL_DS);
- /* The __user pointer casts are valid because of the set_fs() */
- err = sys_nfsservctl(cmd, (void __user *) karg, (void __user *) kres);
- set_fs(oldfs);
-
- if (err)
- goto done;
-
- if((cmd == NFSCTL_GETFD) ||
- (cmd == NFSCTL_GETFS))
- err = compat_nfs_getfh_res_trans(kres, res);
-
-done:
- kfree(karg);
- kfree(kres);
- return err;
-}
-#else /* !NFSD */
long asmlinkage compat_sys_nfsservctl(int cmd, void *notused, void *notused2)
{
return sys_ni_syscall();
}
-#endif
#ifdef CONFIG_EPOLL
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index 61abb638b4b..8be086e9abe 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -68,6 +68,8 @@
#ifdef CONFIG_BLOCK
#include <linux/loop.h>
+#include <linux/cdrom.h>
+#include <linux/fd.h>
#include <scsi/scsi.h>
#include <scsi/scsi_ioctl.h>
#include <scsi/sg.h>
@@ -944,6 +946,9 @@ COMPATIBLE_IOCTL(FIOQSIZE)
IGNORE_IOCTL(LOOP_CLR_FD)
/* md calls this on random blockdevs */
IGNORE_IOCTL(RAID_VERSION)
+/* qemu/qemu-img might call these two on plain files for probing */
+IGNORE_IOCTL(CDROM_DRIVE_STATUS)
+IGNORE_IOCTL(FDGETPRM32)
/* SG stuff */
COMPATIBLE_IOCTL(SG_SET_TIMEOUT)
COMPATIBLE_IOCTL(SG_GET_TIMEOUT)
diff --git a/fs/direct-io.c b/fs/direct-io.c
index 01d2d9ef609..44a360ca804 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -35,7 +35,7 @@
#include <linux/buffer_head.h>
#include <linux/rwsem.h>
#include <linux/uio.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
/*
* How many user pages to map in one call to get_user_pages(). This determines
diff --git a/fs/dlm/plock.c b/fs/dlm/plock.c
index e2b87800436..01fd5c11a7f 100644
--- a/fs/dlm/plock.c
+++ b/fs/dlm/plock.c
@@ -92,7 +92,7 @@ static void do_unlock_close(struct dlm_ls *ls, u64 number,
op->info.number = number;
op->info.start = 0;
op->info.end = OFFSET_MAX;
- if (fl->fl_lmops && fl->fl_lmops->fl_grant)
+ if (fl->fl_lmops && fl->fl_lmops->lm_grant)
op->info.owner = (__u64) fl->fl_pid;
else
op->info.owner = (__u64)(long) fl->fl_owner;
@@ -128,11 +128,11 @@ int dlm_posix_lock(dlm_lockspace_t *lockspace, u64 number, struct file *file,
op->info.number = number;
op->info.start = fl->fl_start;
op->info.end = fl->fl_end;
- if (fl->fl_lmops && fl->fl_lmops->fl_grant) {
+ if (fl->fl_lmops && fl->fl_lmops->lm_grant) {
/* fl_owner is lockd which doesn't distinguish
processes on the nfs client */
op->info.owner = (__u64) fl->fl_pid;
- xop->callback = fl->fl_lmops->fl_grant;
+ xop->callback = fl->fl_lmops->lm_grant;
locks_init_lock(&xop->flc);
locks_copy_lock(&xop->flc, fl);
xop->fl = fl;
@@ -268,7 +268,7 @@ int dlm_posix_unlock(dlm_lockspace_t *lockspace, u64 number, struct file *file,
op->info.number = number;
op->info.start = fl->fl_start;
op->info.end = fl->fl_end;
- if (fl->fl_lmops && fl->fl_lmops->fl_grant)
+ if (fl->fl_lmops && fl->fl_lmops->lm_grant)
op->info.owner = (__u64) fl->fl_pid;
else
op->info.owner = (__u64)(long) fl->fl_owner;
@@ -327,7 +327,7 @@ int dlm_posix_get(dlm_lockspace_t *lockspace, u64 number, struct file *file,
op->info.number = number;
op->info.start = fl->fl_start;
op->info.end = fl->fl_end;
- if (fl->fl_lmops && fl->fl_lmops->fl_grant)
+ if (fl->fl_lmops && fl->fl_lmops->lm_grant)
op->info.owner = (__u64) fl->fl_pid;
else
op->info.owner = (__u64)(long) fl->fl_owner;
diff --git a/fs/ecryptfs/keystore.c b/fs/ecryptfs/keystore.c
index 27a7fefb83e..fa8049ecdc6 100644
--- a/fs/ecryptfs/keystore.c
+++ b/fs/ecryptfs/keystore.c
@@ -2248,7 +2248,7 @@ write_tag_3_packet(char *dest, size_t *remaining_bytes,
auth_tok->token.password.session_key_encryption_key,
crypt_stat->key_size);
ecryptfs_printk(KERN_DEBUG,
- "Cached session key " "encryption key: \n");
+ "Cached session key encryption key:\n");
if (ecryptfs_verbosity > 0)
ecryptfs_dump_hex(session_key_encryption_key, 16);
}
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index f9cfd168fbe..fe047d966dc 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -37,7 +37,7 @@
#include <asm/system.h>
#include <asm/io.h>
#include <asm/mman.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
/*
* LOCKING:
diff --git a/fs/exec.c b/fs/exec.c
index 842d5700c15..da80612a35f 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -181,14 +181,7 @@ static void acct_arg_size(struct linux_binprm *bprm, unsigned long pages)
return;
bprm->vma_pages = pages;
-
-#ifdef SPLIT_RSS_COUNTING
- add_mm_counter(mm, MM_ANONPAGES, diff);
-#else
- spin_lock(&mm->page_table_lock);
add_mm_counter(mm, MM_ANONPAGES, diff);
- spin_unlock(&mm->page_table_lock);
-#endif
}
static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos,
@@ -277,7 +270,7 @@ static int __bprm_mm_init(struct linux_binprm *bprm)
* use STACK_TOP because that can depend on attributes which aren't
* configured yet.
*/
- BUG_ON(VM_STACK_FLAGS & VM_STACK_INCOMPLETE_SETUP);
+ BUILD_BUG_ON(VM_STACK_FLAGS & VM_STACK_INCOMPLETE_SETUP);
vma->vm_end = STACK_TOP_MAX;
vma->vm_start = vma->vm_end - PAGE_SIZE;
vma->vm_flags = VM_STACK_FLAGS | VM_STACK_INCOMPLETE_SETUP;
@@ -1430,9 +1423,9 @@ int search_binary_handler(struct linux_binprm *bprm,struct pt_regs *regs)
}
}
read_unlock(&binfmt_lock);
+#ifdef CONFIG_MODULES
if (retval != -ENOEXEC || bprm->mm == NULL) {
break;
-#ifdef CONFIG_MODULES
} else {
#define printable(c) (((c)=='\t') || ((c)=='\n') || (0x20<=(c) && (c)<=0x7e))
if (printable(bprm->buf[0]) &&
@@ -1440,9 +1433,13 @@ int search_binary_handler(struct linux_binprm *bprm,struct pt_regs *regs)
printable(bprm->buf[2]) &&
printable(bprm->buf[3]))
break; /* -ENOEXEC */
+ if (try)
+ break; /* -ENOEXEC */
request_module("binfmt-%04x", *(unsigned short *)(&bprm->buf[2]));
-#endif
}
+#else
+ break;
+#endif
}
return retval;
}
@@ -1649,15 +1646,26 @@ expand_fail:
return ret;
}
+static void cn_escape(char *str)
+{
+ for (; *str; str++)
+ if (*str == '/')
+ *str = '!';
+}
+
static int cn_print_exe_file(struct core_name *cn)
{
struct file *exe_file;
- char *pathbuf, *path, *p;
+ char *pathbuf, *path;
int ret;
exe_file = get_mm_exe_file(current->mm);
- if (!exe_file)
- return cn_printf(cn, "(unknown)");
+ if (!exe_file) {
+ char *commstart = cn->corename + cn->used;
+ ret = cn_printf(cn, "%s (path unknown)", current->comm);
+ cn_escape(commstart);
+ return ret;
+ }
pathbuf = kmalloc(PATH_MAX, GFP_TEMPORARY);
if (!pathbuf) {
@@ -1671,9 +1679,7 @@ static int cn_print_exe_file(struct core_name *cn)
goto free_buf;
}
- for (p = path; *p; p++)
- if (*p == '/')
- *p = '!';
+ cn_escape(path);
ret = cn_printf(cn, "%s", path);
@@ -1745,16 +1751,22 @@ static int format_corename(struct core_name *cn, long signr)
break;
}
/* hostname */
- case 'h':
+ case 'h': {
+ char *namestart = cn->corename + cn->used;
down_read(&uts_sem);
err = cn_printf(cn, "%s",
utsname()->nodename);
up_read(&uts_sem);
+ cn_escape(namestart);
break;
+ }
/* executable */
- case 'e':
+ case 'e': {
+ char *commstart = cn->corename + cn->used;
err = cn_printf(cn, "%s", current->comm);
+ cn_escape(commstart);
break;
+ }
case 'E':
err = cn_print_exe_file(cn);
break;
@@ -2118,16 +2130,16 @@ void do_coredump(long signr, int exit_code, struct pt_regs *regs)
ispipe = format_corename(&cn, signr);
- if (ispipe == -ENOMEM) {
- printk(KERN_WARNING "format_corename failed\n");
- printk(KERN_WARNING "Aborting core\n");
- goto fail_corename;
- }
-
if (ispipe) {
int dump_count;
char **helper_argv;
+ if (ispipe < 0) {
+ printk(KERN_WARNING "format_corename failed\n");
+ printk(KERN_WARNING "Aborting core\n");
+ goto fail_corename;
+ }
+
if (cprm.limit == 1) {
/*
* Normally core limits are irrelevant to pipes, since
diff --git a/fs/ext2/acl.c b/fs/ext2/acl.c
index bfe651f9ae1..52c05376394 100644
--- a/fs/ext2/acl.c
+++ b/fs/ext2/acl.c
@@ -128,7 +128,7 @@ fail:
/*
* inode->i_mutex: don't care
*/
-static struct posix_acl *
+struct posix_acl *
ext2_get_acl(struct inode *inode, int type)
{
int name_index;
@@ -231,29 +231,6 @@ ext2_set_acl(struct inode *inode, int type, struct posix_acl *acl)
return error;
}
-int
-ext2_check_acl(struct inode *inode, int mask)
-{
- struct posix_acl *acl;
-
- if (mask & MAY_NOT_BLOCK) {
- if (!negative_cached_acl(inode, ACL_TYPE_ACCESS))
- return -ECHILD;
- return -EAGAIN;
- }
-
- acl = ext2_get_acl(inode, ACL_TYPE_ACCESS);
- if (IS_ERR(acl))
- return PTR_ERR(acl);
- if (acl) {
- int error = posix_acl_permission(inode, acl, mask);
- posix_acl_release(acl);
- return error;
- }
-
- return -EAGAIN;
-}
-
/*
* Initialize the ACLs of a new inode. Called from ext2_new_inode.
*
@@ -276,29 +253,20 @@ ext2_init_acl(struct inode *inode, struct inode *dir)
inode->i_mode &= ~current_umask();
}
if (test_opt(inode->i_sb, POSIX_ACL) && acl) {
- struct posix_acl *clone;
- mode_t mode;
-
+ mode_t mode = inode->i_mode;
if (S_ISDIR(inode->i_mode)) {
error = ext2_set_acl(inode, ACL_TYPE_DEFAULT, acl);
if (error)
goto cleanup;
}
- clone = posix_acl_clone(acl, GFP_KERNEL);
- error = -ENOMEM;
- if (!clone)
- goto cleanup;
- mode = inode->i_mode;
- error = posix_acl_create_masq(clone, &mode);
- if (error >= 0) {
- inode->i_mode = mode;
- if (error > 0) {
- /* This is an extended ACL */
- error = ext2_set_acl(inode,
- ACL_TYPE_ACCESS, clone);
- }
+ error = posix_acl_create(&acl, GFP_KERNEL, &mode);
+ if (error < 0)
+ return error;
+ inode->i_mode = mode;
+ if (error > 0) {
+ /* This is an extended ACL */
+ error = ext2_set_acl(inode, ACL_TYPE_ACCESS, acl);
}
- posix_acl_release(clone);
}
cleanup:
posix_acl_release(acl);
@@ -322,7 +290,7 @@ cleanup:
int
ext2_acl_chmod(struct inode *inode)
{
- struct posix_acl *acl, *clone;
+ struct posix_acl *acl;
int error;
if (!test_opt(inode->i_sb, POSIX_ACL))
@@ -332,14 +300,11 @@ ext2_acl_chmod(struct inode *inode)
acl = ext2_get_acl(inode, ACL_TYPE_ACCESS);
if (IS_ERR(acl) || !acl)
return PTR_ERR(acl);
- clone = posix_acl_clone(acl, GFP_KERNEL);
+ error = posix_acl_chmod(&acl, GFP_KERNEL, inode->i_mode);
+ if (error)
+ return error;
+ error = ext2_set_acl(inode, ACL_TYPE_ACCESS, acl);
posix_acl_release(acl);
- if (!clone)
- return -ENOMEM;
- error = posix_acl_chmod_masq(clone, inode->i_mode);
- if (!error)
- error = ext2_set_acl(inode, ACL_TYPE_ACCESS, clone);
- posix_acl_release(clone);
return error;
}
diff --git a/fs/ext2/acl.h b/fs/ext2/acl.h
index 3ff6cbb9ac4..5c0a6a4fb05 100644
--- a/fs/ext2/acl.h
+++ b/fs/ext2/acl.h
@@ -54,13 +54,13 @@ static inline int ext2_acl_count(size_t size)
#ifdef CONFIG_EXT2_FS_POSIX_ACL
/* acl.c */
-extern int ext2_check_acl (struct inode *, int);
+extern struct posix_acl *ext2_get_acl(struct inode *inode, int type);
extern int ext2_acl_chmod (struct inode *);
extern int ext2_init_acl (struct inode *, struct inode *);
#else
#include <linux/sched.h>
-#define ext2_check_acl NULL
+#define ext2_get_acl NULL
#define ext2_get_acl NULL
#define ext2_set_acl NULL
diff --git a/fs/ext2/file.c b/fs/ext2/file.c
index 82e06321de3..a5b3a5db312 100644
--- a/fs/ext2/file.c
+++ b/fs/ext2/file.c
@@ -102,6 +102,6 @@ const struct inode_operations ext2_file_inode_operations = {
.removexattr = generic_removexattr,
#endif
.setattr = ext2_setattr,
- .check_acl = ext2_check_acl,
+ .get_acl = ext2_get_acl,
.fiemap = ext2_fiemap,
};
diff --git a/fs/ext2/namei.c b/fs/ext2/namei.c
index d60b7099e2d..761fde807fc 100644
--- a/fs/ext2/namei.c
+++ b/fs/ext2/namei.c
@@ -408,7 +408,7 @@ const struct inode_operations ext2_dir_inode_operations = {
.removexattr = generic_removexattr,
#endif
.setattr = ext2_setattr,
- .check_acl = ext2_check_acl,
+ .get_acl = ext2_get_acl,
};
const struct inode_operations ext2_special_inode_operations = {
@@ -419,5 +419,5 @@ const struct inode_operations ext2_special_inode_operations = {
.removexattr = generic_removexattr,
#endif
.setattr = ext2_setattr,
- .check_acl = ext2_check_acl,
+ .get_acl = ext2_get_acl,
};
diff --git a/fs/ext2/xattr.c b/fs/ext2/xattr.c
index 529970617a2..d27b71f1d18 100644
--- a/fs/ext2/xattr.c
+++ b/fs/ext2/xattr.c
@@ -161,6 +161,10 @@ ext2_xattr_get(struct inode *inode, int name_index, const char *name,
if (name == NULL)
return -EINVAL;
+ name_len = strlen(name);
+ if (name_len > 255)
+ return -ERANGE;
+
down_read(&EXT2_I(inode)->xattr_sem);
error = -ENODATA;
if (!EXT2_I(inode)->i_file_acl)
@@ -181,12 +185,8 @@ bad_block: ext2_error(inode->i_sb, "ext2_xattr_get",
error = -EIO;
goto cleanup;
}
- /* find named attribute */
- name_len = strlen(name);
- error = -ERANGE;
- if (name_len > 255)
- goto cleanup;
+ /* find named attribute */
entry = FIRST_ENTRY(bh);
while (!IS_LAST_ENTRY(entry)) {
struct ext2_xattr_entry *next =
diff --git a/fs/ext3/acl.c b/fs/ext3/acl.c
index edfeb293d4c..6c29bf0df04 100644
--- a/fs/ext3/acl.c
+++ b/fs/ext3/acl.c
@@ -131,7 +131,7 @@ fail:
*
* inode->i_mutex: don't care
*/
-static struct posix_acl *
+struct posix_acl *
ext3_get_acl(struct inode *inode, int type)
{
int name_index;
@@ -239,29 +239,6 @@ ext3_set_acl(handle_t *handle, struct inode *inode, int type,
return error;
}
-int
-ext3_check_acl(struct inode *inode, int mask)
-{
- struct posix_acl *acl;
-
- if (mask & MAY_NOT_BLOCK) {
- if (!negative_cached_acl(inode, ACL_TYPE_ACCESS))
- return -ECHILD;
- return -EAGAIN;
- }
-
- acl = ext3_get_acl(inode, ACL_TYPE_ACCESS);
- if (IS_ERR(acl))
- return PTR_ERR(acl);
- if (acl) {
- int error = posix_acl_permission(inode, acl, mask);
- posix_acl_release(acl);
- return error;
- }
-
- return -EAGAIN;
-}
-
/*
* Initialize the ACLs of a new inode. Called from ext3_new_inode.
*
@@ -284,8 +261,7 @@ ext3_init_acl(handle_t *handle, struct inode *inode, struct inode *dir)
inode->i_mode &= ~current_umask();
}
if (test_opt(inode->i_sb, POSIX_ACL) && acl) {
- struct posix_acl *clone;
- mode_t mode;
+ mode_t mode = inode->i_mode;
if (S_ISDIR(inode->i_mode)) {
error = ext3_set_acl(handle, inode,
@@ -293,22 +269,15 @@ ext3_init_acl(handle_t *handle, struct inode *inode, struct inode *dir)
if (error)
goto cleanup;
}
- clone = posix_acl_clone(acl, GFP_NOFS);
- error = -ENOMEM;
- if (!clone)
- goto cleanup;
-
- mode = inode->i_mode;
- error = posix_acl_create_masq(clone, &mode);
- if (error >= 0) {
- inode->i_mode = mode;
- if (error > 0) {
- /* This is an extended ACL */
- error = ext3_set_acl(handle, inode,
- ACL_TYPE_ACCESS, clone);
- }
+ error = posix_acl_create(&acl, GFP_NOFS, &mode);
+ if (error < 0)
+ return error;
+
+ inode->i_mode = mode;
+ if (error > 0) {
+ /* This is an extended ACL */
+ error = ext3_set_acl(handle, inode, ACL_TYPE_ACCESS, acl);
}
- posix_acl_release(clone);
}
cleanup:
posix_acl_release(acl);
@@ -332,7 +301,9 @@ cleanup:
int
ext3_acl_chmod(struct inode *inode)
{
- struct posix_acl *acl, *clone;
+ struct posix_acl *acl;
+ handle_t *handle;
+ int retries = 0;
int error;
if (S_ISLNK(inode->i_mode))
@@ -342,31 +313,24 @@ ext3_acl_chmod(struct inode *inode)
acl = ext3_get_acl(inode, ACL_TYPE_ACCESS);
if (IS_ERR(acl) || !acl)
return PTR_ERR(acl);
- clone = posix_acl_clone(acl, GFP_KERNEL);
- posix_acl_release(acl);
- if (!clone)
- return -ENOMEM;
- error = posix_acl_chmod_masq(clone, inode->i_mode);
- if (!error) {
- handle_t *handle;
- int retries = 0;
-
- retry:
- handle = ext3_journal_start(inode,
- EXT3_DATA_TRANS_BLOCKS(inode->i_sb));
- if (IS_ERR(handle)) {
- error = PTR_ERR(handle);
- ext3_std_error(inode->i_sb, error);
- goto out;
- }
- error = ext3_set_acl(handle, inode, ACL_TYPE_ACCESS, clone);
- ext3_journal_stop(handle);
- if (error == -ENOSPC &&
- ext3_should_retry_alloc(inode->i_sb, &retries))
- goto retry;
+ error = posix_acl_chmod(&acl, GFP_KERNEL, inode->i_mode);
+ if (error)
+ return error;
+retry:
+ handle = ext3_journal_start(inode,
+ EXT3_DATA_TRANS_BLOCKS(inode->i_sb));
+ if (IS_ERR(handle)) {
+ error = PTR_ERR(handle);
+ ext3_std_error(inode->i_sb, error);
+ goto out;
}
+ error = ext3_set_acl(handle, inode, ACL_TYPE_ACCESS, acl);
+ ext3_journal_stop(handle);
+ if (error == -ENOSPC &&
+ ext3_should_retry_alloc(inode->i_sb, &retries))
+ goto retry;
out:
- posix_acl_release(clone);
+ posix_acl_release(acl);
return error;
}
diff --git a/fs/ext3/acl.h b/fs/ext3/acl.h
index 597334626de..dbc921e458c 100644
--- a/fs/ext3/acl.h
+++ b/fs/ext3/acl.h
@@ -54,13 +54,13 @@ static inline int ext3_acl_count(size_t size)
#ifdef CONFIG_EXT3_FS_POSIX_ACL
/* acl.c */
-extern int ext3_check_acl (struct inode *, int);
+extern struct posix_acl *ext3_get_acl(struct inode *inode, int type);
extern int ext3_acl_chmod (struct inode *);
extern int ext3_init_acl (handle_t *, struct inode *, struct inode *);
#else /* CONFIG_EXT3_FS_POSIX_ACL */
#include <linux/sched.h>
-#define ext3_check_acl NULL
+#define ext3_get_acl NULL
static inline int
ext3_acl_chmod(struct inode *inode)
diff --git a/fs/ext3/balloc.c b/fs/ext3/balloc.c
index fe52297e31a..6386d76f44a 100644
--- a/fs/ext3/balloc.c
+++ b/fs/ext3/balloc.c
@@ -21,6 +21,7 @@
#include <linux/quotaops.h>
#include <linux/buffer_head.h>
#include <linux/blkdev.h>
+#include <trace/events/ext3.h>
/*
* balloc.c contains the blocks allocation and deallocation routines
@@ -161,6 +162,7 @@ read_block_bitmap(struct super_block *sb, unsigned int block_group)
desc = ext3_get_group_desc(sb, block_group, NULL);
if (!desc)
return NULL;
+ trace_ext3_read_block_bitmap(sb, block_group);
bitmap_blk = le32_to_cpu(desc->bg_block_bitmap);
bh = sb_getblk(sb, bitmap_blk);
if (unlikely(!bh)) {
@@ -351,6 +353,7 @@ void ext3_rsv_window_add(struct super_block *sb,
struct rb_node * parent = NULL;
struct ext3_reserve_window_node *this;
+ trace_ext3_rsv_window_add(sb, rsv);
while (*p)
{
parent = *p;
@@ -476,8 +479,10 @@ void ext3_discard_reservation(struct inode *inode)
rsv = &block_i->rsv_window_node;
if (!rsv_is_empty(&rsv->rsv_window)) {
spin_lock(rsv_lock);
- if (!rsv_is_empty(&rsv->rsv_window))
+ if (!rsv_is_empty(&rsv->rsv_window)) {
+ trace_ext3_discard_reservation(inode, rsv);
rsv_window_remove(inode->i_sb, rsv);
+ }
spin_unlock(rsv_lock);
}
}
@@ -683,14 +688,10 @@ error_return:
void ext3_free_blocks(handle_t *handle, struct inode *inode,
ext3_fsblk_t block, unsigned long count)
{
- struct super_block * sb;
+ struct super_block *sb = inode->i_sb;
unsigned long dquot_freed_blocks;
- sb = inode->i_sb;
- if (!sb) {
- printk ("ext3_free_blocks: nonexistent device");
- return;
- }
+ trace_ext3_free_blocks(inode, block, count);
ext3_free_blocks_sb(handle, sb, block, count, &dquot_freed_blocks);
if (dquot_freed_blocks)
dquot_free_block(inode, dquot_freed_blocks);
@@ -1136,6 +1137,7 @@ static int alloc_new_reservation(struct ext3_reserve_window_node *my_rsv,
else
start_block = grp_goal + group_first_block;
+ trace_ext3_alloc_new_reservation(sb, start_block);
size = my_rsv->rsv_goal_size;
if (!rsv_is_empty(&my_rsv->rsv_window)) {
@@ -1230,8 +1232,11 @@ retry:
* check if the first free block is within the
* free space we just reserved
*/
- if (start_block >= my_rsv->rsv_start && start_block <= my_rsv->rsv_end)
+ if (start_block >= my_rsv->rsv_start &&
+ start_block <= my_rsv->rsv_end) {
+ trace_ext3_reserved(sb, start_block, my_rsv);
return 0; /* success */
+ }
/*
* if the first free bit we found is out of the reservable space
* continue search for next reservable space,
@@ -1514,10 +1519,6 @@ ext3_fsblk_t ext3_new_blocks(handle_t *handle, struct inode *inode,
*errp = -ENOSPC;
sb = inode->i_sb;
- if (!sb) {
- printk("ext3_new_block: nonexistent device");
- return 0;
- }
/*
* Check quota for allocation of this block.
@@ -1528,8 +1529,10 @@ ext3_fsblk_t ext3_new_blocks(handle_t *handle, struct inode *inode,
return 0;
}
+ trace_ext3_request_blocks(inode, goal, num);
+
sbi = EXT3_SB(sb);
- es = EXT3_SB(sb)->s_es;
+ es = sbi->s_es;
ext3_debug("goal=%lu.\n", goal);
/*
* Allocate a block from reservation only when
@@ -1742,6 +1745,10 @@ allocated:
brelse(bitmap_bh);
dquot_free_block(inode, *count-num);
*count = num;
+
+ trace_ext3_allocate_blocks(inode, goal, num,
+ (unsigned long long)ret_block);
+
return ret_block;
io_error:
@@ -1996,6 +2003,7 @@ ext3_grpblk_t ext3_trim_all_free(struct super_block *sb, unsigned int group,
if ((next - start) < minblocks)
goto free_extent;
+ trace_ext3_discard_blocks(sb, discard_block, next - start);
/* Send the TRIM command down to the device */
err = sb_issue_discard(sb, discard_block, next - start,
GFP_NOFS, 0);
@@ -2100,7 +2108,7 @@ int ext3_trim_fs(struct super_block *sb, struct fstrim_range *range)
if (unlikely(minlen > EXT3_BLOCKS_PER_GROUP(sb)))
return -EINVAL;
if (start >= max_blks)
- goto out;
+ return -EINVAL;
if (start + len > max_blks)
len = max_blks - start;
@@ -2148,8 +2156,6 @@ int ext3_trim_fs(struct super_block *sb, struct fstrim_range *range)
if (ret >= 0)
ret = 0;
-
-out:
range->len = trimmed * sb->s_blocksize;
return ret;
diff --git a/fs/ext3/file.c b/fs/ext3/file.c
index f55df0e61cb..724df69847d 100644
--- a/fs/ext3/file.c
+++ b/fs/ext3/file.c
@@ -71,7 +71,6 @@ const struct file_operations ext3_file_operations = {
};
const struct inode_operations ext3_file_inode_operations = {
- .truncate = ext3_truncate,
.setattr = ext3_setattr,
#ifdef CONFIG_EXT3_FS_XATTR
.setxattr = generic_setxattr,
@@ -79,7 +78,7 @@ const struct inode_operations ext3_file_inode_operations = {
.listxattr = ext3_listxattr,
.removexattr = generic_removexattr,
#endif
- .check_acl = ext3_check_acl,
+ .get_acl = ext3_get_acl,
.fiemap = ext3_fiemap,
};
diff --git a/fs/ext3/fsync.c b/fs/ext3/fsync.c
index 0bcf63adb80..d494c554c6e 100644
--- a/fs/ext3/fsync.c
+++ b/fs/ext3/fsync.c
@@ -30,6 +30,7 @@
#include <linux/jbd.h>
#include <linux/ext3_fs.h>
#include <linux/ext3_jbd.h>
+#include <trace/events/ext3.h>
/*
* akpm: A new design for ext3_sync_file().
@@ -51,12 +52,14 @@ int ext3_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
int ret, needs_barrier = 0;
tid_t commit_tid;
+ trace_ext3_sync_file_enter(file, datasync);
+
if (inode->i_sb->s_flags & MS_RDONLY)
return 0;
ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
if (ret)
- return ret;
+ goto out;
/*
* Taking the mutex here just to keep consistent with how fsync was
@@ -83,7 +86,8 @@ int ext3_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
*/
if (ext3_should_journal_data(inode)) {
mutex_unlock(&inode->i_mutex);
- return ext3_force_commit(inode->i_sb);
+ ret = ext3_force_commit(inode->i_sb);
+ goto out;
}
if (datasync)
@@ -104,6 +108,9 @@ int ext3_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
*/
if (needs_barrier)
blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL);
+
mutex_unlock(&inode->i_mutex);
+out:
+ trace_ext3_sync_file_exit(inode, ret);
return ret;
}
diff --git a/fs/ext3/ialloc.c b/fs/ext3/ialloc.c
index bfc2dc43681..bf09cbf938c 100644
--- a/fs/ext3/ialloc.c
+++ b/fs/ext3/ialloc.c
@@ -23,6 +23,7 @@
#include <linux/buffer_head.h>
#include <linux/random.h>
#include <linux/bitops.h>
+#include <trace/events/ext3.h>
#include <asm/byteorder.h>
@@ -118,6 +119,7 @@ void ext3_free_inode (handle_t *handle, struct inode * inode)
ino = inode->i_ino;
ext3_debug ("freeing inode %lu\n", ino);
+ trace_ext3_free_inode(inode);
is_directory = S_ISDIR(inode->i_mode);
@@ -426,6 +428,7 @@ struct inode *ext3_new_inode(handle_t *handle, struct inode * dir,
return ERR_PTR(-EPERM);
sb = dir->i_sb;
+ trace_ext3_request_inode(dir, mode);
inode = new_inode(sb);
if (!inode)
return ERR_PTR(-ENOMEM);
@@ -601,6 +604,7 @@ got:
}
ext3_debug("allocating inode %lu\n", inode->i_ino);
+ trace_ext3_allocate_inode(inode, dir, mode);
goto really_out;
fail:
ext3_std_error(sb, err);
diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c
index 2978a2a17a5..04da6acde85 100644
--- a/fs/ext3/inode.c
+++ b/fs/ext3/inode.c
@@ -38,10 +38,12 @@
#include <linux/bio.h>
#include <linux/fiemap.h>
#include <linux/namei.h>
+#include <trace/events/ext3.h>
#include "xattr.h"
#include "acl.h"
static int ext3_writepage_trans_blocks(struct inode *inode);
+static int ext3_block_truncate_page(struct inode *inode, loff_t from);
/*
* Test whether an inode is a fast symlink.
@@ -70,6 +72,7 @@ int ext3_forget(handle_t *handle, int is_metadata, struct inode *inode,
might_sleep();
+ trace_ext3_forget(inode, is_metadata, blocknr);
BUFFER_TRACE(bh, "enter");
jbd_debug(4, "forgetting bh %p: is_metadata = %d, mode %o, "
@@ -194,20 +197,47 @@ static int truncate_restart_transaction(handle_t *handle, struct inode *inode)
*/
void ext3_evict_inode (struct inode *inode)
{
+ struct ext3_inode_info *ei = EXT3_I(inode);
struct ext3_block_alloc_info *rsv;
handle_t *handle;
int want_delete = 0;
+ trace_ext3_evict_inode(inode);
if (!inode->i_nlink && !is_bad_inode(inode)) {
dquot_initialize(inode);
want_delete = 1;
}
+ /*
+ * When journalling data dirty buffers are tracked only in the journal.
+ * So although mm thinks everything is clean and ready for reaping the
+ * inode might still have some pages to write in the running
+ * transaction or waiting to be checkpointed. Thus calling
+ * journal_invalidatepage() (via truncate_inode_pages()) to discard
+ * these buffers can cause data loss. Also even if we did not discard
+ * these buffers, we would have no way to find them after the inode
+ * is reaped and thus user could see stale data if he tries to read
+ * them before the transaction is checkpointed. So be careful and
+ * force everything to disk here... We use ei->i_datasync_tid to
+ * store the newest transaction containing inode's data.
+ *
+ * Note that directories do not have this problem because they don't
+ * use page cache.
+ */
+ if (inode->i_nlink && ext3_should_journal_data(inode) &&
+ (S_ISLNK(inode->i_mode) || S_ISREG(inode->i_mode))) {
+ tid_t commit_tid = atomic_read(&ei->i_datasync_tid);
+ journal_t *journal = EXT3_SB(inode->i_sb)->s_journal;
+
+ log_start_commit(journal, commit_tid);
+ log_wait_commit(journal, commit_tid);
+ filemap_write_and_wait(&inode->i_data);
+ }
truncate_inode_pages(&inode->i_data, 0);
ext3_discard_reservation(inode);
- rsv = EXT3_I(inode)->i_block_alloc_info;
- EXT3_I(inode)->i_block_alloc_info = NULL;
+ rsv = ei->i_block_alloc_info;
+ ei->i_block_alloc_info = NULL;
if (unlikely(rsv))
kfree(rsv);
@@ -231,15 +261,13 @@ void ext3_evict_inode (struct inode *inode)
if (inode->i_blocks)
ext3_truncate(inode);
/*
- * Kill off the orphan record which ext3_truncate created.
- * AKPM: I think this can be inside the above `if'.
- * Note that ext3_orphan_del() has to be able to cope with the
- * deletion of a non-existent orphan - this is because we don't
- * know if ext3_truncate() actually created an orphan record.
- * (Well, we could do this if we need to, but heck - it works)
+ * Kill off the orphan record created when the inode lost the last
+ * link. Note that ext3_orphan_del() has to be able to cope with the
+ * deletion of a non-existent orphan - ext3_truncate() could
+ * have removed the record.
*/
ext3_orphan_del(handle, inode);
- EXT3_I(inode)->i_dtime = get_seconds();
+ ei->i_dtime = get_seconds();
/*
* One subtle ordering requirement: if anything has gone wrong
@@ -842,6 +870,7 @@ int ext3_get_blocks_handle(handle_t *handle, struct inode *inode,
ext3_fsblk_t first_block = 0;
+ trace_ext3_get_blocks_enter(inode, iblock, maxblocks, create);
J_ASSERT(handle != NULL || create == 0);
depth = ext3_block_to_path(inode,iblock,offsets,&blocks_to_boundary);
@@ -886,6 +915,9 @@ int ext3_get_blocks_handle(handle_t *handle, struct inode *inode,
if (!create || err == -EIO)
goto cleanup;
+ /*
+ * Block out ext3_truncate while we alter the tree
+ */
mutex_lock(&ei->truncate_mutex);
/*
@@ -934,9 +966,6 @@ int ext3_get_blocks_handle(handle_t *handle, struct inode *inode,
*/
count = ext3_blks_to_allocate(partial, indirect_blks,
maxblocks, blocks_to_boundary);
- /*
- * Block out ext3_truncate while we alter the tree
- */
err = ext3_alloc_branch(handle, inode, indirect_blks, &count, goal,
offsets + (partial - chain), partial);
@@ -970,6 +999,9 @@ cleanup:
}
BUFFER_TRACE(bh_result, "returned");
out:
+ trace_ext3_get_blocks_exit(inode, iblock,
+ depth ? le32_to_cpu(chain[depth-1].key) : 0,
+ count, err);
return err;
}
@@ -1202,6 +1234,16 @@ static void ext3_truncate_failed_write(struct inode *inode)
ext3_truncate(inode);
}
+/*
+ * Truncate blocks that were not used by direct IO write. We have to zero out
+ * the last file block as well because direct IO might have written to it.
+ */
+static void ext3_truncate_failed_direct_write(struct inode *inode)
+{
+ ext3_block_truncate_page(inode, inode->i_size);
+ ext3_truncate(inode);
+}
+
static int ext3_write_begin(struct file *file, struct address_space *mapping,
loff_t pos, unsigned len, unsigned flags,
struct page **pagep, void **fsdata)
@@ -1217,6 +1259,8 @@ static int ext3_write_begin(struct file *file, struct address_space *mapping,
* we allocate blocks but write fails for some reason */
int needed_blocks = ext3_writepage_trans_blocks(inode) + 1;
+ trace_ext3_write_begin(inode, pos, len, flags);
+
index = pos >> PAGE_CACHE_SHIFT;
from = pos & (PAGE_CACHE_SIZE - 1);
to = from + len;
@@ -1332,6 +1376,7 @@ static int ext3_ordered_write_end(struct file *file,
unsigned from, to;
int ret = 0, ret2;
+ trace_ext3_ordered_write_end(inode, pos, len, copied);
copied = block_write_end(file, mapping, pos, len, copied, page, fsdata);
from = pos & (PAGE_CACHE_SIZE - 1);
@@ -1367,6 +1412,7 @@ static int ext3_writeback_write_end(struct file *file,
struct inode *inode = file->f_mapping->host;
int ret;
+ trace_ext3_writeback_write_end(inode, pos, len, copied);
copied = block_write_end(file, mapping, pos, len, copied, page, fsdata);
update_file_sizes(inode, pos, copied);
/*
@@ -1391,10 +1437,12 @@ static int ext3_journalled_write_end(struct file *file,
{
handle_t *handle = ext3_journal_current_handle();
struct inode *inode = mapping->host;
+ struct ext3_inode_info *ei = EXT3_I(inode);
int ret = 0, ret2;
int partial = 0;
unsigned from, to;
+ trace_ext3_journalled_write_end(inode, pos, len, copied);
from = pos & (PAGE_CACHE_SIZE - 1);
to = from + len;
@@ -1419,8 +1467,9 @@ static int ext3_journalled_write_end(struct file *file,
if (pos + len > inode->i_size && ext3_can_truncate(inode))
ext3_orphan_add(handle, inode);
ext3_set_inode_state(inode, EXT3_STATE_JDATA);
- if (inode->i_size > EXT3_I(inode)->i_disksize) {
- EXT3_I(inode)->i_disksize = inode->i_size;
+ atomic_set(&ei->i_datasync_tid, handle->h_transaction->t_tid);
+ if (inode->i_size > ei->i_disksize) {
+ ei->i_disksize = inode->i_size;
ret2 = ext3_mark_inode_dirty(handle, inode);
if (!ret)
ret = ret2;
@@ -1577,6 +1626,7 @@ static int ext3_ordered_writepage(struct page *page,
if (ext3_journal_current_handle())
goto out_fail;
+ trace_ext3_ordered_writepage(page);
if (!page_has_buffers(page)) {
create_empty_buffers(page, inode->i_sb->s_blocksize,
(1 << BH_Dirty)|(1 << BH_Uptodate));
@@ -1647,6 +1697,7 @@ static int ext3_writeback_writepage(struct page *page,
if (ext3_journal_current_handle())
goto out_fail;
+ trace_ext3_writeback_writepage(page);
if (page_has_buffers(page)) {
if (!walk_page_buffers(NULL, page_buffers(page), 0,
PAGE_CACHE_SIZE, NULL, buffer_unmapped)) {
@@ -1689,6 +1740,7 @@ static int ext3_journalled_writepage(struct page *page,
if (ext3_journal_current_handle())
goto no_write;
+ trace_ext3_journalled_writepage(page);
handle = ext3_journal_start(inode, ext3_writepage_trans_blocks(inode));
if (IS_ERR(handle)) {
ret = PTR_ERR(handle);
@@ -1715,6 +1767,8 @@ static int ext3_journalled_writepage(struct page *page,
if (ret == 0)
ret = err;
ext3_set_inode_state(inode, EXT3_STATE_JDATA);
+ atomic_set(&EXT3_I(inode)->i_datasync_tid,
+ handle->h_transaction->t_tid);
unlock_page(page);
} else {
/*
@@ -1739,6 +1793,7 @@ out_unlock:
static int ext3_readpage(struct file *file, struct page *page)
{
+ trace_ext3_readpage(page);
return mpage_readpage(page, ext3_get_block);
}
@@ -1753,6 +1808,8 @@ static void ext3_invalidatepage(struct page *page, unsigned long offset)
{
journal_t *journal = EXT3_JOURNAL(page->mapping->host);
+ trace_ext3_invalidatepage(page, offset);
+
/*
* If it's a full truncate we just forget about the pending dirtying
*/
@@ -1766,6 +1823,7 @@ static int ext3_releasepage(struct page *page, gfp_t wait)
{
journal_t *journal = EXT3_JOURNAL(page->mapping->host);
+ trace_ext3_releasepage(page);
WARN_ON(PageChecked(page));
if (!page_has_buffers(page))
return 0;
@@ -1794,6 +1852,8 @@ static ssize_t ext3_direct_IO(int rw, struct kiocb *iocb,
size_t count = iov_length(iov, nr_segs);
int retries = 0;
+ trace_ext3_direct_IO_enter(inode, offset, iov_length(iov, nr_segs), rw);
+
if (rw == WRITE) {
loff_t final_size = offset + count;
@@ -1827,7 +1887,7 @@ retry:
loff_t end = offset + iov_length(iov, nr_segs);
if (end > isize)
- vmtruncate(inode, isize);
+ ext3_truncate_failed_direct_write(inode);
}
if (ret == -ENOSPC && ext3_should_retry_alloc(inode->i_sb, &retries))
goto retry;
@@ -1841,7 +1901,7 @@ retry:
/* This is really bad luck. We've written the data
* but cannot extend i_size. Truncate allocated blocks
* and pretend the write failed... */
- ext3_truncate(inode);
+ ext3_truncate_failed_direct_write(inode);
ret = PTR_ERR(handle);
goto out;
}
@@ -1867,6 +1927,8 @@ retry:
ret = err;
}
out:
+ trace_ext3_direct_IO_exit(inode, offset,
+ iov_length(iov, nr_segs), rw, ret);
return ret;
}
@@ -1949,17 +2011,24 @@ void ext3_set_aops(struct inode *inode)
* This required during truncate. We need to physically zero the tail end
* of that block so it doesn't yield old data if the file is later grown.
*/
-static int ext3_block_truncate_page(handle_t *handle, struct page *page,
- struct address_space *mapping, loff_t from)
+static int ext3_block_truncate_page(struct inode *inode, loff_t from)
{
ext3_fsblk_t index = from >> PAGE_CACHE_SHIFT;
- unsigned offset = from & (PAGE_CACHE_SIZE-1);
+ unsigned offset = from & (PAGE_CACHE_SIZE - 1);
unsigned blocksize, iblock, length, pos;
- struct inode *inode = mapping->host;
+ struct page *page;
+ handle_t *handle = NULL;
struct buffer_head *bh;
int err = 0;
+ /* Truncated on block boundary - nothing to do */
blocksize = inode->i_sb->s_blocksize;
+ if ((from & (blocksize - 1)) == 0)
+ return 0;
+
+ page = grab_cache_page(inode->i_mapping, index);
+ if (!page)
+ return -ENOMEM;
length = blocksize - (offset & (blocksize - 1));
iblock = index << (PAGE_CACHE_SHIFT - inode->i_sb->s_blocksize_bits);
@@ -2004,11 +2073,23 @@ static int ext3_block_truncate_page(handle_t *handle, struct page *page,
goto unlock;
}
+ /* data=writeback mode doesn't need transaction to zero-out data */
+ if (!ext3_should_writeback_data(inode)) {
+ /* We journal at most one block */
+ handle = ext3_journal_start(inode, 1);
+ if (IS_ERR(handle)) {
+ clear_highpage(page);
+ flush_dcache_page(page);
+ err = PTR_ERR(handle);
+ goto unlock;
+ }
+ }
+
if (ext3_should_journal_data(inode)) {
BUFFER_TRACE(bh, "get write access");
err = ext3_journal_get_write_access(handle, bh);
if (err)
- goto unlock;
+ goto stop;
}
zero_user(page, offset, length);
@@ -2022,6 +2103,9 @@ static int ext3_block_truncate_page(handle_t *handle, struct page *page,
err = ext3_journal_dirty_data(handle, bh);
mark_buffer_dirty(bh);
}
+stop:
+ if (handle)
+ ext3_journal_stop(handle);
unlock:
unlock_page(page);
@@ -2390,8 +2474,6 @@ static void ext3_free_branches(handle_t *handle, struct inode *inode,
int ext3_can_truncate(struct inode *inode)
{
- if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
- return 0;
if (S_ISREG(inode->i_mode))
return 1;
if (S_ISDIR(inode->i_mode))
@@ -2435,7 +2517,6 @@ void ext3_truncate(struct inode *inode)
struct ext3_inode_info *ei = EXT3_I(inode);
__le32 *i_data = ei->i_data;
int addr_per_block = EXT3_ADDR_PER_BLOCK(inode->i_sb);
- struct address_space *mapping = inode->i_mapping;
int offsets[4];
Indirect chain[4];
Indirect *partial;
@@ -2443,7 +2524,8 @@ void ext3_truncate(struct inode *inode)
int n;
long last_block;
unsigned blocksize = inode->i_sb->s_blocksize;
- struct page *page;
+
+ trace_ext3_truncate_enter(inode);
if (!ext3_can_truncate(inode))
goto out_notrans;
@@ -2451,37 +2533,12 @@ void ext3_truncate(struct inode *inode)
if (inode->i_size == 0 && ext3_should_writeback_data(inode))
ext3_set_inode_state(inode, EXT3_STATE_FLUSH_ON_CLOSE);
- /*
- * We have to lock the EOF page here, because lock_page() nests
- * outside journal_start().
- */
- if ((inode->i_size & (blocksize - 1)) == 0) {
- /* Block boundary? Nothing to do */
- page = NULL;
- } else {
- page = grab_cache_page(mapping,
- inode->i_size >> PAGE_CACHE_SHIFT);
- if (!page)
- goto out_notrans;
- }
-
handle = start_transaction(inode);
- if (IS_ERR(handle)) {
- if (page) {
- clear_highpage(page);
- flush_dcache_page(page);
- unlock_page(page);
- page_cache_release(page);
- }
+ if (IS_ERR(handle))
goto out_notrans;
- }
last_block = (inode->i_size + blocksize-1)
>> EXT3_BLOCK_SIZE_BITS(inode->i_sb);
-
- if (page)
- ext3_block_truncate_page(handle, page, mapping, inode->i_size);
-
n = ext3_block_to_path(inode, last_block, offsets, NULL);
if (n == 0)
goto out_stop; /* error */
@@ -2596,6 +2653,7 @@ out_stop:
ext3_orphan_del(handle, inode);
ext3_journal_stop(handle);
+ trace_ext3_truncate_exit(inode);
return;
out_notrans:
/*
@@ -2604,6 +2662,7 @@ out_notrans:
*/
if (inode->i_nlink)
ext3_orphan_del(NULL, inode);
+ trace_ext3_truncate_exit(inode);
}
static ext3_fsblk_t ext3_get_inode_block(struct super_block *sb,
@@ -2745,6 +2804,7 @@ make_io:
* has in-inode xattrs, or we don't have this inode in memory.
* Read the block from disk.
*/
+ trace_ext3_load_inode(inode);
get_bh(bh);
bh->b_end_io = end_buffer_read_sync;
submit_bh(READ_META, bh);
@@ -3229,18 +3289,36 @@ int ext3_setattr(struct dentry *dentry, struct iattr *attr)
}
error = ext3_orphan_add(handle, inode);
+ if (error) {
+ ext3_journal_stop(handle);
+ goto err_out;
+ }
EXT3_I(inode)->i_disksize = attr->ia_size;
- rc = ext3_mark_inode_dirty(handle, inode);
- if (!error)
- error = rc;
+ error = ext3_mark_inode_dirty(handle, inode);
ext3_journal_stop(handle);
+ if (error) {
+ /* Some hard fs error must have happened. Bail out. */
+ ext3_orphan_del(NULL, inode);
+ goto err_out;
+ }
+ rc = ext3_block_truncate_page(inode, attr->ia_size);
+ if (rc) {
+ /* Cleanup orphan list and exit */
+ handle = ext3_journal_start(inode, 3);
+ if (IS_ERR(handle)) {
+ ext3_orphan_del(NULL, inode);
+ goto err_out;
+ }
+ ext3_orphan_del(handle, inode);
+ ext3_journal_stop(handle);
+ goto err_out;
+ }
}
if ((attr->ia_valid & ATTR_SIZE) &&
attr->ia_size != i_size_read(inode)) {
- rc = vmtruncate(inode, attr->ia_size);
- if (rc)
- goto err_out;
+ truncate_setsize(inode, attr->ia_size);
+ ext3_truncate(inode);
}
setattr_copy(inode, attr);
@@ -3374,6 +3452,7 @@ int ext3_mark_inode_dirty(handle_t *handle, struct inode *inode)
int err;
might_sleep();
+ trace_ext3_mark_inode_dirty(inode, _RET_IP_);
err = ext3_reserve_inode_write(handle, inode, &iloc);
if (!err)
err = ext3_mark_iloc_dirty(handle, inode, &iloc);
diff --git a/fs/ext3/ioctl.c b/fs/ext3/ioctl.c
index f4090bd2f34..c7f43944f16 100644
--- a/fs/ext3/ioctl.c
+++ b/fs/ext3/ioctl.c
@@ -285,7 +285,7 @@ group_add_out:
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- if (copy_from_user(&range, (struct fstrim_range *)arg,
+ if (copy_from_user(&range, (struct fstrim_range __user *)arg,
sizeof(range)))
return -EFAULT;
@@ -293,7 +293,7 @@ group_add_out:
if (ret < 0)
return ret;
- if (copy_to_user((struct fstrim_range *)arg, &range,
+ if (copy_to_user((struct fstrim_range __user *)arg, &range,
sizeof(range)))
return -EFAULT;
diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c
index c095cf5640c..6e18a0b7750 100644
--- a/fs/ext3/namei.c
+++ b/fs/ext3/namei.c
@@ -36,6 +36,7 @@
#include <linux/quotaops.h>
#include <linux/buffer_head.h>
#include <linux/bio.h>
+#include <trace/events/ext3.h>
#include "namei.h"
#include "xattr.h"
@@ -287,7 +288,7 @@ static struct stats dx_show_leaf(struct dx_hash_info *hinfo, struct ext3_dir_ent
while (len--) printk("%c", *name++);
ext3fs_dirhash(de->name, de->name_len, &h);
printk(":%x.%u ", h.hash,
- ((char *) de - base));
+ (unsigned) ((char *) de - base));
}
space += EXT3_DIR_REC_LEN(de->name_len);
names++;
@@ -1013,7 +1014,7 @@ static struct buffer_head * ext3_dx_find_entry(struct inode *dir,
*err = -ENOENT;
errout:
- dxtrace(printk("%s not found\n", name));
+ dxtrace(printk("%s not found\n", entry->name));
dx_release (frames);
return NULL;
}
@@ -2140,6 +2141,7 @@ static int ext3_unlink(struct inode * dir, struct dentry *dentry)
struct ext3_dir_entry_2 * de;
handle_t *handle;
+ trace_ext3_unlink_enter(dir, dentry);
/* Initialize quotas before so that eventual writes go
* in separate transaction */
dquot_initialize(dir);
@@ -2185,6 +2187,7 @@ static int ext3_unlink(struct inode * dir, struct dentry *dentry)
end_unlink:
ext3_journal_stop(handle);
brelse (bh);
+ trace_ext3_unlink_exit(dentry, retval);
return retval;
}
@@ -2529,7 +2532,7 @@ const struct inode_operations ext3_dir_inode_operations = {
.listxattr = ext3_listxattr,
.removexattr = generic_removexattr,
#endif
- .check_acl = ext3_check_acl,
+ .get_acl = ext3_get_acl,
};
const struct inode_operations ext3_special_inode_operations = {
@@ -2540,5 +2543,5 @@ const struct inode_operations ext3_special_inode_operations = {
.listxattr = ext3_listxattr,
.removexattr = generic_removexattr,
#endif
- .check_acl = ext3_check_acl,
+ .get_acl = ext3_get_acl,
};
diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index b57ea2f9126..7beb69ae001 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -44,6 +44,9 @@
#include "acl.h"
#include "namei.h"
+#define CREATE_TRACE_POINTS
+#include <trace/events/ext3.h>
+
#ifdef CONFIG_EXT3_DEFAULTS_TO_ORDERED
#define EXT3_MOUNT_DEFAULT_DATA_MODE EXT3_MOUNT_ORDERED_DATA
#else
@@ -497,6 +500,14 @@ static struct inode *ext3_alloc_inode(struct super_block *sb)
return &ei->vfs_inode;
}
+static int ext3_drop_inode(struct inode *inode)
+{
+ int drop = generic_drop_inode(inode);
+
+ trace_ext3_drop_inode(inode, drop);
+ return drop;
+}
+
static void ext3_i_callback(struct rcu_head *head)
{
struct inode *inode = container_of(head, struct inode, i_rcu);
@@ -788,6 +799,7 @@ static const struct super_operations ext3_sops = {
.destroy_inode = ext3_destroy_inode,
.write_inode = ext3_write_inode,
.dirty_inode = ext3_dirty_inode,
+ .drop_inode = ext3_drop_inode,
.evict_inode = ext3_evict_inode,
.put_super = ext3_put_super,
.sync_fs = ext3_sync_fs,
@@ -2509,6 +2521,7 @@ static int ext3_sync_fs(struct super_block *sb, int wait)
{
tid_t target;
+ trace_ext3_sync_fs(sb, wait);
if (journal_start_commit(EXT3_SB(sb)->s_journal, &target)) {
if (wait)
log_wait_commit(EXT3_SB(sb)->s_journal, target);
diff --git a/fs/ext3/xattr.c b/fs/ext3/xattr.c
index 32e6cc23bd9..d565759d82e 100644
--- a/fs/ext3/xattr.c
+++ b/fs/ext3/xattr.c
@@ -803,8 +803,16 @@ inserted:
/* We need to allocate a new block */
ext3_fsblk_t goal = ext3_group_first_block_no(sb,
EXT3_I(inode)->i_block_group);
- ext3_fsblk_t block = ext3_new_block(handle, inode,
- goal, &error);
+ ext3_fsblk_t block;
+
+ /*
+ * Protect us agaist concurrent allocations to the
+ * same inode from ext3_..._writepage(). Reservation
+ * code does not expect racing allocations.
+ */
+ mutex_lock(&EXT3_I(inode)->truncate_mutex);
+ block = ext3_new_block(handle, inode, goal, &error);
+ mutex_unlock(&EXT3_I(inode)->truncate_mutex);
if (error)
goto cleanup;
ea_idebug(inode, "creating block %d", block);
diff --git a/fs/ext4/acl.c b/fs/ext4/acl.c
index 60d900fcc3d..dca2d1ded93 100644
--- a/fs/ext4/acl.c
+++ b/fs/ext4/acl.c
@@ -131,7 +131,7 @@ fail:
*
* inode->i_mutex: don't care
*/
-static struct posix_acl *
+struct posix_acl *
ext4_get_acl(struct inode *inode, int type)
{
int name_index;
@@ -237,29 +237,6 @@ ext4_set_acl(handle_t *handle, struct inode *inode, int type,
return error;
}
-int
-ext4_check_acl(struct inode *inode, int mask)
-{
- struct posix_acl *acl;
-
- if (mask & MAY_NOT_BLOCK) {
- if (!negative_cached_acl(inode, ACL_TYPE_ACCESS))
- return -ECHILD;
- return -EAGAIN;
- }
-
- acl = ext4_get_acl(inode, ACL_TYPE_ACCESS);
- if (IS_ERR(acl))
- return PTR_ERR(acl);
- if (acl) {
- int error = posix_acl_permission(inode, acl, mask);
- posix_acl_release(acl);
- return error;
- }
-
- return -EAGAIN;
-}
-
/*
* Initialize the ACLs of a new inode. Called from ext4_new_inode.
*
@@ -282,8 +259,7 @@ ext4_init_acl(handle_t *handle, struct inode *inode, struct inode *dir)
inode->i_mode &= ~current_umask();
}
if (test_opt(inode->i_sb, POSIX_ACL) && acl) {
- struct posix_acl *clone;
- mode_t mode;
+ mode_t mode = inode->i_mode;
if (S_ISDIR(inode->i_mode)) {
error = ext4_set_acl(handle, inode,
@@ -291,22 +267,15 @@ ext4_init_acl(handle_t *handle, struct inode *inode, struct inode *dir)
if (error)
goto cleanup;
}
- clone = posix_acl_clone(acl, GFP_NOFS);
- error = -ENOMEM;
- if (!clone)
- goto cleanup;
-
- mode = inode->i_mode;
- error = posix_acl_create_masq(clone, &mode);
- if (error >= 0) {
- inode->i_mode = mode;
- if (error > 0) {
- /* This is an extended ACL */
- error = ext4_set_acl(handle, inode,
- ACL_TYPE_ACCESS, clone);
- }
+ error = posix_acl_create(&acl, GFP_NOFS, &mode);
+ if (error < 0)
+ return error;
+
+ inode->i_mode = mode;
+ if (error > 0) {
+ /* This is an extended ACL */
+ error = ext4_set_acl(handle, inode, ACL_TYPE_ACCESS, acl);
}
- posix_acl_release(clone);
}
cleanup:
posix_acl_release(acl);
@@ -330,9 +299,12 @@ cleanup:
int
ext4_acl_chmod(struct inode *inode)
{
- struct posix_acl *acl, *clone;
+ struct posix_acl *acl;
+ handle_t *handle;
+ int retries = 0;
int error;
+
if (S_ISLNK(inode->i_mode))
return -EOPNOTSUPP;
if (!test_opt(inode->i_sb, POSIX_ACL))
@@ -340,31 +312,24 @@ ext4_acl_chmod(struct inode *inode)
acl = ext4_get_acl(inode, ACL_TYPE_ACCESS);
if (IS_ERR(acl) || !acl)
return PTR_ERR(acl);
- clone = posix_acl_clone(acl, GFP_KERNEL);
- posix_acl_release(acl);
- if (!clone)
- return -ENOMEM;
- error = posix_acl_chmod_masq(clone, inode->i_mode);
- if (!error) {
- handle_t *handle;
- int retries = 0;
-
- retry:
- handle = ext4_journal_start(inode,
- EXT4_DATA_TRANS_BLOCKS(inode->i_sb));
- if (IS_ERR(handle)) {
- error = PTR_ERR(handle);
- ext4_std_error(inode->i_sb, error);
- goto out;
- }
- error = ext4_set_acl(handle, inode, ACL_TYPE_ACCESS, clone);
- ext4_journal_stop(handle);
- if (error == -ENOSPC &&
- ext4_should_retry_alloc(inode->i_sb, &retries))
- goto retry;
+ error = posix_acl_chmod(&acl, GFP_KERNEL, inode->i_mode);
+ if (error)
+ return error;
+retry:
+ handle = ext4_journal_start(inode,
+ EXT4_DATA_TRANS_BLOCKS(inode->i_sb));
+ if (IS_ERR(handle)) {
+ error = PTR_ERR(handle);
+ ext4_std_error(inode->i_sb, error);
+ goto out;
}
+ error = ext4_set_acl(handle, inode, ACL_TYPE_ACCESS, acl);
+ ext4_journal_stop(handle);
+ if (error == -ENOSPC &&
+ ext4_should_retry_alloc(inode->i_sb, &retries))
+ goto retry;
out:
- posix_acl_release(clone);
+ posix_acl_release(acl);
return error;
}
diff --git a/fs/ext4/acl.h b/fs/ext4/acl.h
index 9d843d5deac..18cb39ed7c7 100644
--- a/fs/ext4/acl.h
+++ b/fs/ext4/acl.h
@@ -54,13 +54,13 @@ static inline int ext4_acl_count(size_t size)
#ifdef CONFIG_EXT4_FS_POSIX_ACL
/* acl.c */
-extern int ext4_check_acl(struct inode *, int);
+struct posix_acl *ext4_get_acl(struct inode *inode, int type);
extern int ext4_acl_chmod(struct inode *);
extern int ext4_init_acl(handle_t *, struct inode *, struct inode *);
#else /* CONFIG_EXT4_FS_POSIX_ACL */
#include <linux/sched.h>
-#define ext4_check_acl NULL
+#define ext4_get_acl NULL
static inline int
ext4_acl_chmod(struct inode *inode)
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index ce766f974b1..e4095e988eb 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -301,7 +301,7 @@ const struct inode_operations ext4_file_inode_operations = {
.listxattr = ext4_listxattr,
.removexattr = generic_removexattr,
#endif
- .check_acl = ext4_check_acl,
+ .get_acl = ext4_get_acl,
.fiemap = ext4_fiemap,
};
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 678cde834f1..3e5191f9f39 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -2741,7 +2741,7 @@ static int write_cache_pages_da(struct address_space *mapping,
index = wbc->range_start >> PAGE_CACHE_SHIFT;
end = wbc->range_end >> PAGE_CACHE_SHIFT;
- if (wbc->sync_mode == WB_SYNC_ALL)
+ if (wbc->sync_mode == WB_SYNC_ALL || wbc->tagged_writepages)
tag = PAGECACHE_TAG_TOWRITE;
else
tag = PAGECACHE_TAG_DIRTY;
@@ -2973,7 +2973,7 @@ static int ext4_da_writepages(struct address_space *mapping,
}
retry:
- if (wbc->sync_mode == WB_SYNC_ALL)
+ if (wbc->sync_mode == WB_SYNC_ALL || wbc->tagged_writepages)
tag_pages_for_writeback(mapping, index, end);
while (!ret && wbc->nr_to_write > 0) {
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 707d605bf76..8c9babac43d 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -2590,7 +2590,7 @@ const struct inode_operations ext4_dir_inode_operations = {
.listxattr = ext4_listxattr,
.removexattr = generic_removexattr,
#endif
- .check_acl = ext4_check_acl,
+ .get_acl = ext4_get_acl,
.fiemap = ext4_fiemap,
};
@@ -2602,5 +2602,5 @@ const struct inode_operations ext4_special_inode_operations = {
.listxattr = ext4_listxattr,
.removexattr = generic_removexattr,
#endif
- .check_acl = ext4_check_acl,
+ .get_acl = ext4_get_acl,
};
diff --git a/fs/file_table.c b/fs/file_table.c
index 01e4c1e8e6b..c322794f736 100644
--- a/fs/file_table.c
+++ b/fs/file_table.c
@@ -25,7 +25,7 @@
#include <linux/percpu.h>
#include <linux/ima.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include "internal.h"
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index b8c507ca42f..1599aa985fe 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -35,7 +35,9 @@
struct wb_writeback_work {
long nr_pages;
struct super_block *sb;
+ unsigned long *older_than_this;
enum writeback_sync_modes sync_mode;
+ unsigned int tagged_writepages:1;
unsigned int for_kupdate:1;
unsigned int range_cyclic:1;
unsigned int for_background:1;
@@ -180,12 +182,13 @@ void bdi_start_background_writeback(struct backing_dev_info *bdi)
*/
void inode_wb_list_del(struct inode *inode)
{
- spin_lock(&inode_wb_list_lock);
+ struct backing_dev_info *bdi = inode_to_bdi(inode);
+
+ spin_lock(&bdi->wb.list_lock);
list_del_init(&inode->i_wb_list);
- spin_unlock(&inode_wb_list_lock);
+ spin_unlock(&bdi->wb.list_lock);
}
-
/*
* Redirty an inode: set its when-it-was dirtied timestamp and move it to the
* furthest end of its superblock's dirty-inode list.
@@ -195,11 +198,9 @@ void inode_wb_list_del(struct inode *inode)
* the case then the inode must have been redirtied while it was being written
* out and we don't reset its dirtied_when.
*/
-static void redirty_tail(struct inode *inode)
+static void redirty_tail(struct inode *inode, struct bdi_writeback *wb)
{
- struct bdi_writeback *wb = &inode_to_bdi(inode)->wb;
-
- assert_spin_locked(&inode_wb_list_lock);
+ assert_spin_locked(&wb->list_lock);
if (!list_empty(&wb->b_dirty)) {
struct inode *tail;
@@ -213,11 +214,9 @@ static void redirty_tail(struct inode *inode)
/*
* requeue inode for re-scanning after bdi->b_io list is exhausted.
*/
-static void requeue_io(struct inode *inode)
+static void requeue_io(struct inode *inode, struct bdi_writeback *wb)
{
- struct bdi_writeback *wb = &inode_to_bdi(inode)->wb;
-
- assert_spin_locked(&inode_wb_list_lock);
+ assert_spin_locked(&wb->list_lock);
list_move(&inode->i_wb_list, &wb->b_more_io);
}
@@ -225,7 +224,7 @@ static void inode_sync_complete(struct inode *inode)
{
/*
* Prevent speculative execution through
- * spin_unlock(&inode_wb_list_lock);
+ * spin_unlock(&wb->list_lock);
*/
smp_mb();
@@ -250,15 +249,16 @@ static bool inode_dirtied_after(struct inode *inode, unsigned long t)
/*
* Move expired dirty inodes from @delaying_queue to @dispatch_queue.
*/
-static void move_expired_inodes(struct list_head *delaying_queue,
+static int move_expired_inodes(struct list_head *delaying_queue,
struct list_head *dispatch_queue,
- unsigned long *older_than_this)
+ unsigned long *older_than_this)
{
LIST_HEAD(tmp);
struct list_head *pos, *node;
struct super_block *sb = NULL;
struct inode *inode;
int do_sb_sort = 0;
+ int moved = 0;
while (!list_empty(delaying_queue)) {
inode = wb_inode(delaying_queue->prev);
@@ -269,12 +269,13 @@ static void move_expired_inodes(struct list_head *delaying_queue,
do_sb_sort = 1;
sb = inode->i_sb;
list_move(&inode->i_wb_list, &tmp);
+ moved++;
}
/* just one sb in list, splice to dispatch_queue and we're done */
if (!do_sb_sort) {
list_splice(&tmp, dispatch_queue);
- return;
+ goto out;
}
/* Move inodes from one superblock together */
@@ -286,6 +287,8 @@ static void move_expired_inodes(struct list_head *delaying_queue,
list_move(&inode->i_wb_list, dispatch_queue);
}
}
+out:
+ return moved;
}
/*
@@ -301,9 +304,11 @@ static void move_expired_inodes(struct list_head *delaying_queue,
*/
static void queue_io(struct bdi_writeback *wb, unsigned long *older_than_this)
{
- assert_spin_locked(&inode_wb_list_lock);
+ int moved;
+ assert_spin_locked(&wb->list_lock);
list_splice_init(&wb->b_more_io, &wb->b_io);
- move_expired_inodes(&wb->b_dirty, &wb->b_io, older_than_this);
+ moved = move_expired_inodes(&wb->b_dirty, &wb->b_io, older_than_this);
+ trace_writeback_queue_io(wb, older_than_this, moved);
}
static int write_inode(struct inode *inode, struct writeback_control *wbc)
@@ -316,7 +321,8 @@ static int write_inode(struct inode *inode, struct writeback_control *wbc)
/*
* Wait for writeback on an inode to complete.
*/
-static void inode_wait_for_writeback(struct inode *inode)
+static void inode_wait_for_writeback(struct inode *inode,
+ struct bdi_writeback *wb)
{
DEFINE_WAIT_BIT(wq, &inode->i_state, __I_SYNC);
wait_queue_head_t *wqh;
@@ -324,15 +330,15 @@ static void inode_wait_for_writeback(struct inode *inode)
wqh = bit_waitqueue(&inode->i_state, __I_SYNC);
while (inode->i_state & I_SYNC) {
spin_unlock(&inode->i_lock);
- spin_unlock(&inode_wb_list_lock);
+ spin_unlock(&wb->list_lock);
__wait_on_bit(wqh, &wq, inode_wait, TASK_UNINTERRUPTIBLE);
- spin_lock(&inode_wb_list_lock);
+ spin_lock(&wb->list_lock);
spin_lock(&inode->i_lock);
}
}
/*
- * Write out an inode's dirty pages. Called under inode_wb_list_lock and
+ * Write out an inode's dirty pages. Called under wb->list_lock and
* inode->i_lock. Either the caller has an active reference on the inode or
* the inode has I_WILL_FREE set.
*
@@ -343,13 +349,15 @@ static void inode_wait_for_writeback(struct inode *inode)
* livelocks, etc.
*/
static int
-writeback_single_inode(struct inode *inode, struct writeback_control *wbc)
+writeback_single_inode(struct inode *inode, struct bdi_writeback *wb,
+ struct writeback_control *wbc)
{
struct address_space *mapping = inode->i_mapping;
+ long nr_to_write = wbc->nr_to_write;
unsigned dirty;
int ret;
- assert_spin_locked(&inode_wb_list_lock);
+ assert_spin_locked(&wb->list_lock);
assert_spin_locked(&inode->i_lock);
if (!atomic_read(&inode->i_count))
@@ -367,14 +375,16 @@ writeback_single_inode(struct inode *inode, struct writeback_control *wbc)
* completed a full scan of b_io.
*/
if (wbc->sync_mode != WB_SYNC_ALL) {
- requeue_io(inode);
+ requeue_io(inode, wb);
+ trace_writeback_single_inode_requeue(inode, wbc,
+ nr_to_write);
return 0;
}
/*
* It's a data-integrity sync. We must wait.
*/
- inode_wait_for_writeback(inode);
+ inode_wait_for_writeback(inode, wb);
}
BUG_ON(inode->i_state & I_SYNC);
@@ -383,7 +393,7 @@ writeback_single_inode(struct inode *inode, struct writeback_control *wbc)
inode->i_state |= I_SYNC;
inode->i_state &= ~I_DIRTY_PAGES;
spin_unlock(&inode->i_lock);
- spin_unlock(&inode_wb_list_lock);
+ spin_unlock(&wb->list_lock);
ret = do_writepages(mapping, wbc);
@@ -414,10 +424,19 @@ writeback_single_inode(struct inode *inode, struct writeback_control *wbc)
ret = err;
}
- spin_lock(&inode_wb_list_lock);
+ spin_lock(&wb->list_lock);
spin_lock(&inode->i_lock);
inode->i_state &= ~I_SYNC;
if (!(inode->i_state & I_FREEING)) {
+ /*
+ * Sync livelock prevention. Each inode is tagged and synced in
+ * one shot. If still dirty, it will be redirty_tail()'ed below.
+ * Update the dirty time to prevent enqueue and sync it again.
+ */
+ if ((inode->i_state & I_DIRTY) &&
+ (wbc->sync_mode == WB_SYNC_ALL || wbc->tagged_writepages))
+ inode->dirtied_when = jiffies;
+
if (mapping_tagged(mapping, PAGECACHE_TAG_DIRTY)) {
/*
* We didn't write back all the pages. nfs_writepages()
@@ -428,7 +447,7 @@ writeback_single_inode(struct inode *inode, struct writeback_control *wbc)
/*
* slice used up: queue for next turn
*/
- requeue_io(inode);
+ requeue_io(inode, wb);
} else {
/*
* Writeback blocked by something other than
@@ -437,7 +456,7 @@ writeback_single_inode(struct inode *inode, struct writeback_control *wbc)
* retrying writeback of the dirty page/inode
* that cannot be performed immediately.
*/
- redirty_tail(inode);
+ redirty_tail(inode, wb);
}
} else if (inode->i_state & I_DIRTY) {
/*
@@ -446,7 +465,7 @@ writeback_single_inode(struct inode *inode, struct writeback_control *wbc)
* submission or metadata updates after data IO
* completion.
*/
- redirty_tail(inode);
+ redirty_tail(inode, wb);
} else {
/*
* The inode is clean. At this point we either have
@@ -457,9 +476,41 @@ writeback_single_inode(struct inode *inode, struct writeback_control *wbc)
}
}
inode_sync_complete(inode);
+ trace_writeback_single_inode(inode, wbc, nr_to_write);
return ret;
}
+static long writeback_chunk_size(struct backing_dev_info *bdi,
+ struct wb_writeback_work *work)
+{
+ long pages;
+
+ /*
+ * WB_SYNC_ALL mode does livelock avoidance by syncing dirty
+ * inodes/pages in one big loop. Setting wbc.nr_to_write=LONG_MAX
+ * here avoids calling into writeback_inodes_wb() more than once.
+ *
+ * The intended call sequence for WB_SYNC_ALL writeback is:
+ *
+ * wb_writeback()
+ * writeback_sb_inodes() <== called only once
+ * write_cache_pages() <== called once for each inode
+ * (quickly) tag currently dirty pages
+ * (maybe slowly) sync all tagged pages
+ */
+ if (work->sync_mode == WB_SYNC_ALL || work->tagged_writepages)
+ pages = LONG_MAX;
+ else {
+ pages = min(bdi->avg_write_bandwidth / 2,
+ global_dirty_limit / DIRTY_SCOPE);
+ pages = min(pages, work->nr_pages);
+ pages = round_down(pages + MIN_WRITEBACK_PAGES,
+ MIN_WRITEBACK_PAGES);
+ }
+
+ return pages;
+}
+
/*
* Write a portion of b_io inodes which belong to @sb.
*
@@ -467,24 +518,36 @@ writeback_single_inode(struct inode *inode, struct writeback_control *wbc)
* inodes. Otherwise write only ones which go sequentially
* in reverse order.
*
- * Return 1, if the caller writeback routine should be
- * interrupted. Otherwise return 0.
+ * Return the number of pages and/or inodes written.
*/
-static int writeback_sb_inodes(struct super_block *sb, struct bdi_writeback *wb,
- struct writeback_control *wbc, bool only_this_sb)
+static long writeback_sb_inodes(struct super_block *sb,
+ struct bdi_writeback *wb,
+ struct wb_writeback_work *work)
{
+ struct writeback_control wbc = {
+ .sync_mode = work->sync_mode,
+ .tagged_writepages = work->tagged_writepages,
+ .for_kupdate = work->for_kupdate,
+ .for_background = work->for_background,
+ .range_cyclic = work->range_cyclic,
+ .range_start = 0,
+ .range_end = LLONG_MAX,
+ };
+ unsigned long start_time = jiffies;
+ long write_chunk;
+ long wrote = 0; /* count both pages and inodes */
+
while (!list_empty(&wb->b_io)) {
- long pages_skipped;
struct inode *inode = wb_inode(wb->b_io.prev);
if (inode->i_sb != sb) {
- if (only_this_sb) {
+ if (work->sb) {
/*
* We only want to write back data for this
* superblock, move all inodes not belonging
* to it back onto the dirty list.
*/
- redirty_tail(inode);
+ redirty_tail(inode, wb);
continue;
}
@@ -493,7 +556,7 @@ static int writeback_sb_inodes(struct super_block *sb, struct bdi_writeback *wb,
* Bounce back to the caller to unpin this and
* pin the next superblock.
*/
- return 0;
+ break;
}
/*
@@ -504,95 +567,91 @@ static int writeback_sb_inodes(struct super_block *sb, struct bdi_writeback *wb,
spin_lock(&inode->i_lock);
if (inode->i_state & (I_NEW | I_FREEING | I_WILL_FREE)) {
spin_unlock(&inode->i_lock);
- requeue_io(inode);
+ redirty_tail(inode, wb);
continue;
}
-
- /*
- * Was this inode dirtied after sync_sb_inodes was called?
- * This keeps sync from extra jobs and livelock.
- */
- if (inode_dirtied_after(inode, wbc->wb_start)) {
- spin_unlock(&inode->i_lock);
- return 1;
- }
-
__iget(inode);
+ write_chunk = writeback_chunk_size(wb->bdi, work);
+ wbc.nr_to_write = write_chunk;
+ wbc.pages_skipped = 0;
- pages_skipped = wbc->pages_skipped;
- writeback_single_inode(inode, wbc);
- if (wbc->pages_skipped != pages_skipped) {
+ writeback_single_inode(inode, wb, &wbc);
+
+ work->nr_pages -= write_chunk - wbc.nr_to_write;
+ wrote += write_chunk - wbc.nr_to_write;
+ if (!(inode->i_state & I_DIRTY))
+ wrote++;
+ if (wbc.pages_skipped) {
/*
* writeback is not making progress due to locked
* buffers. Skip this inode for now.
*/
- redirty_tail(inode);
+ redirty_tail(inode, wb);
}
spin_unlock(&inode->i_lock);
- spin_unlock(&inode_wb_list_lock);
+ spin_unlock(&wb->list_lock);
iput(inode);
cond_resched();
- spin_lock(&inode_wb_list_lock);
- if (wbc->nr_to_write <= 0) {
- wbc->more_io = 1;
- return 1;
+ spin_lock(&wb->list_lock);
+ /*
+ * bail out to wb_writeback() often enough to check
+ * background threshold and other termination conditions.
+ */
+ if (wrote) {
+ if (time_is_before_jiffies(start_time + HZ / 10UL))
+ break;
+ if (work->nr_pages <= 0)
+ break;
}
- if (!list_empty(&wb->b_more_io))
- wbc->more_io = 1;
}
- /* b_io is empty */
- return 1;
+ return wrote;
}
-void writeback_inodes_wb(struct bdi_writeback *wb,
- struct writeback_control *wbc)
+static long __writeback_inodes_wb(struct bdi_writeback *wb,
+ struct wb_writeback_work *work)
{
- int ret = 0;
-
- if (!wbc->wb_start)
- wbc->wb_start = jiffies; /* livelock avoidance */
- spin_lock(&inode_wb_list_lock);
- if (!wbc->for_kupdate || list_empty(&wb->b_io))
- queue_io(wb, wbc->older_than_this);
+ unsigned long start_time = jiffies;
+ long wrote = 0;
while (!list_empty(&wb->b_io)) {
struct inode *inode = wb_inode(wb->b_io.prev);
struct super_block *sb = inode->i_sb;
if (!grab_super_passive(sb)) {
- requeue_io(inode);
+ requeue_io(inode, wb);
continue;
}
- ret = writeback_sb_inodes(sb, wb, wbc, false);
+ wrote += writeback_sb_inodes(sb, wb, work);
drop_super(sb);
- if (ret)
- break;
+ /* refer to the same tests at the end of writeback_sb_inodes */
+ if (wrote) {
+ if (time_is_before_jiffies(start_time + HZ / 10UL))
+ break;
+ if (work->nr_pages <= 0)
+ break;
+ }
}
- spin_unlock(&inode_wb_list_lock);
/* Leave any unwritten inodes on b_io */
+ return wrote;
}
-static void __writeback_inodes_sb(struct super_block *sb,
- struct bdi_writeback *wb, struct writeback_control *wbc)
+long writeback_inodes_wb(struct bdi_writeback *wb, long nr_pages)
{
- WARN_ON(!rwsem_is_locked(&sb->s_umount));
+ struct wb_writeback_work work = {
+ .nr_pages = nr_pages,
+ .sync_mode = WB_SYNC_NONE,
+ .range_cyclic = 1,
+ };
- spin_lock(&inode_wb_list_lock);
- if (!wbc->for_kupdate || list_empty(&wb->b_io))
- queue_io(wb, wbc->older_than_this);
- writeback_sb_inodes(sb, wb, wbc, true);
- spin_unlock(&inode_wb_list_lock);
-}
+ spin_lock(&wb->list_lock);
+ if (list_empty(&wb->b_io))
+ queue_io(wb, NULL);
+ __writeback_inodes_wb(wb, &work);
+ spin_unlock(&wb->list_lock);
-/*
- * The maximum number of pages to writeout in a single bdi flush/kupdate
- * operation. We do this so we don't hold I_SYNC against an inode for
- * enormous amounts of time, which would block a userspace task which has
- * been forced to throttle against that inode. Also, the code reevaluates
- * the dirty each time it has written this many pages.
- */
-#define MAX_WRITEBACK_PAGES 1024
+ return nr_pages - work.nr_pages;
+}
static inline bool over_bground_thresh(void)
{
@@ -605,6 +664,16 @@ static inline bool over_bground_thresh(void)
}
/*
+ * Called under wb->list_lock. If there are multiple wb per bdi,
+ * only the flusher working on the first wb should do it.
+ */
+static void wb_update_bandwidth(struct bdi_writeback *wb,
+ unsigned long start_time)
+{
+ __bdi_update_bandwidth(wb->bdi, 0, 0, 0, 0, start_time);
+}
+
+/*
* Explicit flushing or periodic writeback of "old" data.
*
* Define "old": the first time one of an inode's pages is dirtied, we mark the
@@ -622,47 +691,16 @@ static inline bool over_bground_thresh(void)
static long wb_writeback(struct bdi_writeback *wb,
struct wb_writeback_work *work)
{
- struct writeback_control wbc = {
- .sync_mode = work->sync_mode,
- .older_than_this = NULL,
- .for_kupdate = work->for_kupdate,
- .for_background = work->for_background,
- .range_cyclic = work->range_cyclic,
- };
+ unsigned long wb_start = jiffies;
+ long nr_pages = work->nr_pages;
unsigned long oldest_jif;
- long wrote = 0;
- long write_chunk;
struct inode *inode;
+ long progress;
- if (wbc.for_kupdate) {
- wbc.older_than_this = &oldest_jif;
- oldest_jif = jiffies -
- msecs_to_jiffies(dirty_expire_interval * 10);
- }
- if (!wbc.range_cyclic) {
- wbc.range_start = 0;
- wbc.range_end = LLONG_MAX;
- }
+ oldest_jif = jiffies;
+ work->older_than_this = &oldest_jif;
- /*
- * WB_SYNC_ALL mode does livelock avoidance by syncing dirty
- * inodes/pages in one big loop. Setting wbc.nr_to_write=LONG_MAX
- * here avoids calling into writeback_inodes_wb() more than once.
- *
- * The intended call sequence for WB_SYNC_ALL writeback is:
- *
- * wb_writeback()
- * __writeback_inodes_sb() <== called only once
- * write_cache_pages() <== called once for each inode
- * (quickly) tag currently dirty pages
- * (maybe slowly) sync all tagged pages
- */
- if (wbc.sync_mode == WB_SYNC_NONE)
- write_chunk = MAX_WRITEBACK_PAGES;
- else
- write_chunk = LONG_MAX;
-
- wbc.wb_start = jiffies; /* livelock avoidance */
+ spin_lock(&wb->list_lock);
for (;;) {
/*
* Stop writeback when nr_pages has been consumed
@@ -687,52 +725,54 @@ static long wb_writeback(struct bdi_writeback *wb,
if (work->for_background && !over_bground_thresh())
break;
- wbc.more_io = 0;
- wbc.nr_to_write = write_chunk;
- wbc.pages_skipped = 0;
+ if (work->for_kupdate) {
+ oldest_jif = jiffies -
+ msecs_to_jiffies(dirty_expire_interval * 10);
+ work->older_than_this = &oldest_jif;
+ }
- trace_wbc_writeback_start(&wbc, wb->bdi);
+ trace_writeback_start(wb->bdi, work);
+ if (list_empty(&wb->b_io))
+ queue_io(wb, work->older_than_this);
if (work->sb)
- __writeback_inodes_sb(work->sb, wb, &wbc);
+ progress = writeback_sb_inodes(work->sb, wb, work);
else
- writeback_inodes_wb(wb, &wbc);
- trace_wbc_writeback_written(&wbc, wb->bdi);
+ progress = __writeback_inodes_wb(wb, work);
+ trace_writeback_written(wb->bdi, work);
- work->nr_pages -= write_chunk - wbc.nr_to_write;
- wrote += write_chunk - wbc.nr_to_write;
+ wb_update_bandwidth(wb, wb_start);
/*
- * If we consumed everything, see if we have more
+ * Did we write something? Try for more
+ *
+ * Dirty inodes are moved to b_io for writeback in batches.
+ * The completion of the current batch does not necessarily
+ * mean the overall work is done. So we keep looping as long
+ * as made some progress on cleaning pages or inodes.
*/
- if (wbc.nr_to_write <= 0)
+ if (progress)
continue;
/*
- * Didn't write everything and we don't have more IO, bail
+ * No more inodes for IO, bail
*/
- if (!wbc.more_io)
+ if (list_empty(&wb->b_more_io))
break;
/*
- * Did we write something? Try for more
- */
- if (wbc.nr_to_write < write_chunk)
- continue;
- /*
* Nothing written. Wait for some inode to
* become available for writeback. Otherwise
* we'll just busyloop.
*/
- spin_lock(&inode_wb_list_lock);
if (!list_empty(&wb->b_more_io)) {
+ trace_writeback_wait(wb->bdi, work);
inode = wb_inode(wb->b_more_io.prev);
- trace_wbc_writeback_wait(&wbc, wb->bdi);
spin_lock(&inode->i_lock);
- inode_wait_for_writeback(inode);
+ inode_wait_for_writeback(inode, wb);
spin_unlock(&inode->i_lock);
}
- spin_unlock(&inode_wb_list_lock);
}
+ spin_unlock(&wb->list_lock);
- return wrote;
+ return nr_pages - work->nr_pages;
}
/*
@@ -1063,10 +1103,10 @@ void __mark_inode_dirty(struct inode *inode, int flags)
}
spin_unlock(&inode->i_lock);
- spin_lock(&inode_wb_list_lock);
+ spin_lock(&bdi->wb.list_lock);
inode->dirtied_when = jiffies;
list_move(&inode->i_wb_list, &bdi->wb.b_dirty);
- spin_unlock(&inode_wb_list_lock);
+ spin_unlock(&bdi->wb.list_lock);
if (wakeup_bdi)
bdi_wakeup_thread_delayed(bdi);
@@ -1162,10 +1202,11 @@ void writeback_inodes_sb_nr(struct super_block *sb, unsigned long nr)
{
DECLARE_COMPLETION_ONSTACK(done);
struct wb_writeback_work work = {
- .sb = sb,
- .sync_mode = WB_SYNC_NONE,
- .done = &done,
- .nr_pages = nr,
+ .sb = sb,
+ .sync_mode = WB_SYNC_NONE,
+ .tagged_writepages = 1,
+ .done = &done,
+ .nr_pages = nr,
};
WARN_ON(!rwsem_is_locked(&sb->s_umount));
@@ -1267,6 +1308,7 @@ EXPORT_SYMBOL(sync_inodes_sb);
*/
int write_inode_now(struct inode *inode, int sync)
{
+ struct bdi_writeback *wb = &inode_to_bdi(inode)->wb;
int ret;
struct writeback_control wbc = {
.nr_to_write = LONG_MAX,
@@ -1279,11 +1321,11 @@ int write_inode_now(struct inode *inode, int sync)
wbc.nr_to_write = 0;
might_sleep();
- spin_lock(&inode_wb_list_lock);
+ spin_lock(&wb->list_lock);
spin_lock(&inode->i_lock);
- ret = writeback_single_inode(inode, &wbc);
+ ret = writeback_single_inode(inode, wb, &wbc);
spin_unlock(&inode->i_lock);
- spin_unlock(&inode_wb_list_lock);
+ spin_unlock(&wb->list_lock);
if (sync)
inode_sync_wait(inode);
return ret;
@@ -1303,13 +1345,14 @@ EXPORT_SYMBOL(write_inode_now);
*/
int sync_inode(struct inode *inode, struct writeback_control *wbc)
{
+ struct bdi_writeback *wb = &inode_to_bdi(inode)->wb;
int ret;
- spin_lock(&inode_wb_list_lock);
+ spin_lock(&wb->list_lock);
spin_lock(&inode->i_lock);
- ret = writeback_single_inode(inode, wbc);
+ ret = writeback_single_inode(inode, wb, wbc);
spin_unlock(&inode->i_lock);
- spin_unlock(&inode_wb_list_lock);
+ spin_unlock(&wb->list_lock);
return ret;
}
EXPORT_SYMBOL(sync_inode);
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 7bb685cdd00..d480d9af46c 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1507,7 +1507,7 @@ static int fuse_setlk(struct file *file, struct file_lock *fl, int flock)
pid_t pid = fl->fl_type != F_UNLCK ? current->tgid : 0;
int err;
- if (fl->fl_lmops && fl->fl_lmops->fl_grant) {
+ if (fl->fl_lmops && fl->fl_lmops->lm_grant) {
/* NLM needs asynchronous locks, which we don't support yet */
return -ENOLCK;
}
diff --git a/fs/generic_acl.c b/fs/generic_acl.c
index 70e90b4974c..d5e33a077a6 100644
--- a/fs/generic_acl.c
+++ b/fs/generic_acl.c
@@ -132,31 +132,17 @@ generic_acl_init(struct inode *inode, struct inode *dir)
if (!S_ISLNK(inode->i_mode))
acl = get_cached_acl(dir, ACL_TYPE_DEFAULT);
if (acl) {
- struct posix_acl *clone;
-
- if (S_ISDIR(inode->i_mode)) {
- clone = posix_acl_clone(acl, GFP_KERNEL);
- error = -ENOMEM;
- if (!clone)
- goto cleanup;
- set_cached_acl(inode, ACL_TYPE_DEFAULT, clone);
- posix_acl_release(clone);
- }
- clone = posix_acl_clone(acl, GFP_KERNEL);
- error = -ENOMEM;
- if (!clone)
- goto cleanup;
- error = posix_acl_create_masq(clone, &mode);
- if (error >= 0) {
- inode->i_mode = mode;
- if (error > 0)
- set_cached_acl(inode, ACL_TYPE_ACCESS, clone);
- }
- posix_acl_release(clone);
+ if (S_ISDIR(inode->i_mode))
+ set_cached_acl(inode, ACL_TYPE_DEFAULT, acl);
+ error = posix_acl_create(&acl, GFP_KERNEL, &mode);
+ if (error < 0)
+ return error;
+ inode->i_mode = mode;
+ if (error > 0)
+ set_cached_acl(inode, ACL_TYPE_ACCESS, acl);
}
error = 0;
-cleanup:
posix_acl_release(acl);
return error;
}
@@ -170,44 +156,22 @@ cleanup:
int
generic_acl_chmod(struct inode *inode)
{
- struct posix_acl *acl, *clone;
+ struct posix_acl *acl;
int error = 0;
if (S_ISLNK(inode->i_mode))
return -EOPNOTSUPP;
acl = get_cached_acl(inode, ACL_TYPE_ACCESS);
if (acl) {
- clone = posix_acl_clone(acl, GFP_KERNEL);
+ error = posix_acl_chmod(&acl, GFP_KERNEL, inode->i_mode);
+ if (error)
+ return error;
+ set_cached_acl(inode, ACL_TYPE_ACCESS, acl);
posix_acl_release(acl);
- if (!clone)
- return -ENOMEM;
- error = posix_acl_chmod_masq(clone, inode->i_mode);
- if (!error)
- set_cached_acl(inode, ACL_TYPE_ACCESS, clone);
- posix_acl_release(clone);
}
return error;
}
-int
-generic_check_acl(struct inode *inode, int mask)
-{
- if (mask & MAY_NOT_BLOCK) {
- if (!negative_cached_acl(inode, ACL_TYPE_ACCESS))
- return -ECHILD;
- } else {
- struct posix_acl *acl;
-
- acl = get_cached_acl(inode, ACL_TYPE_ACCESS);
- if (acl) {
- int error = posix_acl_permission(inode, acl, mask);
- posix_acl_release(acl);
- return error;
- }
- }
- return -EAGAIN;
-}
-
const struct xattr_handler generic_acl_access_handler = {
.prefix = POSIX_ACL_XATTR_ACCESS,
.flags = ACL_TYPE_ACCESS,
diff --git a/fs/gfs2/acl.c b/fs/gfs2/acl.c
index 8ef1079f166..884c9af0542 100644
--- a/fs/gfs2/acl.c
+++ b/fs/gfs2/acl.c
@@ -67,36 +67,9 @@ static struct posix_acl *gfs2_acl_get(struct gfs2_inode *ip, int type)
return acl;
}
-/**
- * gfs2_check_acl - Check an ACL to see if we're allowed to do something
- * @inode: the file we want to do something to
- * @mask: what we want to do
- *
- * Returns: errno
- */
-
-int gfs2_check_acl(struct inode *inode, int mask)
+struct posix_acl *gfs2_get_acl(struct inode *inode, int type)
{
- struct posix_acl *acl;
- int error;
-
- if (mask & MAY_NOT_BLOCK) {
- if (!negative_cached_acl(inode, ACL_TYPE_ACCESS))
- return -ECHILD;
- return -EAGAIN;
- }
-
- acl = gfs2_acl_get(GFS2_I(inode), ACL_TYPE_ACCESS);
- if (IS_ERR(acl))
- return PTR_ERR(acl);
-
- if (acl) {
- error = posix_acl_permission(inode, acl, mask);
- posix_acl_release(acl);
- return error;
- }
-
- return -EAGAIN;
+ return gfs2_acl_get(GFS2_I(inode), type);
}
static int gfs2_set_mode(struct inode *inode, mode_t mode)
@@ -143,7 +116,7 @@ out:
int gfs2_acl_create(struct gfs2_inode *dip, struct inode *inode)
{
struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode);
- struct posix_acl *acl, *clone;
+ struct posix_acl *acl;
mode_t mode = inode->i_mode;
int error = 0;
@@ -168,16 +141,10 @@ int gfs2_acl_create(struct gfs2_inode *dip, struct inode *inode)
goto out;
}
- clone = posix_acl_clone(acl, GFP_NOFS);
- error = -ENOMEM;
- if (!clone)
- goto out;
- posix_acl_release(acl);
- acl = clone;
-
- error = posix_acl_create_masq(acl, &mode);
+ error = posix_acl_create(&acl, GFP_NOFS, &mode);
if (error < 0)
- goto out;
+ return error;
+
if (error == 0)
goto munge;
@@ -193,7 +160,7 @@ out:
int gfs2_acl_chmod(struct gfs2_inode *ip, struct iattr *attr)
{
- struct posix_acl *acl, *clone;
+ struct posix_acl *acl;
char *data;
unsigned int len;
int error;
@@ -204,25 +171,19 @@ int gfs2_acl_chmod(struct gfs2_inode *ip, struct iattr *attr)
if (!acl)
return gfs2_setattr_simple(ip, attr);
- clone = posix_acl_clone(acl, GFP_NOFS);
+ error = posix_acl_chmod(&acl, GFP_NOFS, attr->ia_mode);
+ if (error)
+ return error;
+
+ len = posix_acl_to_xattr(acl, NULL, 0);
+ data = kmalloc(len, GFP_NOFS);
error = -ENOMEM;
- if (!clone)
+ if (data == NULL)
goto out;
- posix_acl_release(acl);
- acl = clone;
-
- error = posix_acl_chmod_masq(acl, attr->ia_mode);
- if (!error) {
- len = posix_acl_to_xattr(acl, NULL, 0);
- data = kmalloc(len, GFP_NOFS);
- error = -ENOMEM;
- if (data == NULL)
- goto out;
- posix_acl_to_xattr(acl, data, len);
- error = gfs2_xattr_acl_chmod(ip, attr, data);
- kfree(data);
- set_cached_acl(&ip->i_inode, ACL_TYPE_ACCESS, acl);
- }
+ posix_acl_to_xattr(acl, data, len);
+ error = gfs2_xattr_acl_chmod(ip, attr, data);
+ kfree(data);
+ set_cached_acl(&ip->i_inode, ACL_TYPE_ACCESS, acl);
out:
posix_acl_release(acl);
diff --git a/fs/gfs2/acl.h b/fs/gfs2/acl.h
index b522b0cb39e..0da38dc7efe 100644
--- a/fs/gfs2/acl.h
+++ b/fs/gfs2/acl.h
@@ -16,7 +16,7 @@
#define GFS2_POSIX_ACL_DEFAULT "posix_acl_default"
#define GFS2_ACL_MAX_ENTRIES 25
-extern int gfs2_check_acl(struct inode *inode, int mask);
+extern struct posix_acl *gfs2_get_acl(struct inode *inode, int type);
extern int gfs2_acl_create(struct gfs2_inode *dip, struct inode *inode);
extern int gfs2_acl_chmod(struct gfs2_inode *ip, struct iattr *attr);
extern const struct xattr_handler gfs2_xattr_system_handler;
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 0fb51a96eff..900cf986aad 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -1846,7 +1846,7 @@ const struct inode_operations gfs2_file_iops = {
.listxattr = gfs2_listxattr,
.removexattr = gfs2_removexattr,
.fiemap = gfs2_fiemap,
- .check_acl = gfs2_check_acl,
+ .get_acl = gfs2_get_acl,
};
const struct inode_operations gfs2_dir_iops = {
@@ -1867,7 +1867,7 @@ const struct inode_operations gfs2_dir_iops = {
.listxattr = gfs2_listxattr,
.removexattr = gfs2_removexattr,
.fiemap = gfs2_fiemap,
- .check_acl = gfs2_check_acl,
+ .get_acl = gfs2_get_acl,
};
const struct inode_operations gfs2_symlink_iops = {
@@ -1882,6 +1882,6 @@ const struct inode_operations gfs2_symlink_iops = {
.listxattr = gfs2_listxattr,
.removexattr = gfs2_removexattr,
.fiemap = gfs2_fiemap,
- .check_acl = gfs2_check_acl,
+ .get_acl = gfs2_get_acl,
};
diff --git a/fs/gfs2/main.c b/fs/gfs2/main.c
index 29e1ace7953..8a139ff1919 100644
--- a/fs/gfs2/main.c
+++ b/fs/gfs2/main.c
@@ -16,7 +16,7 @@
#include <linux/gfs2_ondisk.h>
#include <linux/rcupdate.h>
#include <linux/rculist_bl.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include "gfs2.h"
#include "incore.h"
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 7aafeb8fa30..87b6e0421c1 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -94,7 +94,7 @@ static int hugetlbfs_file_mmap(struct file *file, struct vm_area_struct *vma)
vma->vm_flags |= VM_HUGETLB | VM_RESERVED;
vma->vm_ops = &hugetlb_vm_ops;
- if (vma->vm_pgoff & ~(huge_page_mask(h) >> PAGE_SHIFT))
+ if (vma->vm_pgoff & (~huge_page_mask(h) >> PAGE_SHIFT))
return -EINVAL;
vma_len = (loff_t)(vma->vm_end - vma->vm_start);
@@ -1030,6 +1030,7 @@ static int __init init_hugetlbfs_fs(void)
static void __exit exit_hugetlbfs_fs(void)
{
kmem_cache_destroy(hugetlbfs_inode_cachep);
+ kern_unmount(hugetlbfs_vfsmount);
unregister_filesystem(&hugetlbfs_fs_type);
bdi_destroy(&hugetlbfs_backing_dev_info);
}
diff --git a/fs/inode.c b/fs/inode.c
index 96c77b81167..a48fa5355fb 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -37,7 +37,7 @@
* inode->i_sb->s_inode_lru, inode->i_lru
* inode_sb_list_lock protects:
* sb->s_inodes, inode->i_sb_list
- * inode_wb_list_lock protects:
+ * bdi->wb.list_lock protects:
* bdi->wb.b_{dirty,io,more_io}, inode->i_wb_list
* inode_hash_lock protects:
* inode_hashtable, inode->i_hash
@@ -48,7 +48,7 @@
* inode->i_lock
* inode->i_sb->s_inode_lru_lock
*
- * inode_wb_list_lock
+ * bdi->wb.list_lock
* inode->i_lock
*
* inode_hash_lock
@@ -65,7 +65,6 @@ static struct hlist_head *inode_hashtable __read_mostly;
static __cacheline_aligned_in_smp DEFINE_SPINLOCK(inode_hash_lock);
__cacheline_aligned_in_smp DEFINE_SPINLOCK(inode_sb_list_lock);
-__cacheline_aligned_in_smp DEFINE_SPINLOCK(inode_wb_list_lock);
/*
* Empty aops. Can be used for the cases where the user does not
diff --git a/fs/jbd/checkpoint.c b/fs/jbd/checkpoint.c
index e4b87bc1fa5..f94fc48ff3a 100644
--- a/fs/jbd/checkpoint.c
+++ b/fs/jbd/checkpoint.c
@@ -22,6 +22,8 @@
#include <linux/jbd.h>
#include <linux/errno.h>
#include <linux/slab.h>
+#include <linux/blkdev.h>
+#include <trace/events/jbd.h>
/*
* Unlink a buffer from a transaction checkpoint list.
@@ -95,10 +97,14 @@ static int __try_to_free_cp_buf(struct journal_head *jh)
if (jh->b_jlist == BJ_None && !buffer_locked(bh) &&
!buffer_dirty(bh) && !buffer_write_io_error(bh)) {
+ /*
+ * Get our reference so that bh cannot be freed before
+ * we unlock it
+ */
+ get_bh(bh);
JBUFFER_TRACE(jh, "remove from checkpoint list");
ret = __journal_remove_checkpoint(jh) + 1;
jbd_unlock_bh_state(bh);
- journal_remove_journal_head(bh);
BUFFER_TRACE(bh, "release");
__brelse(bh);
} else {
@@ -220,8 +226,8 @@ restart:
spin_lock(&journal->j_list_lock);
goto restart;
}
+ get_bh(bh);
if (buffer_locked(bh)) {
- get_bh(bh);
spin_unlock(&journal->j_list_lock);
jbd_unlock_bh_state(bh);
wait_on_buffer(bh);
@@ -240,7 +246,6 @@ restart:
*/
released = __journal_remove_checkpoint(jh);
jbd_unlock_bh_state(bh);
- journal_remove_journal_head(bh);
__brelse(bh);
}
@@ -253,9 +258,12 @@ static void
__flush_batch(journal_t *journal, struct buffer_head **bhs, int *batch_count)
{
int i;
+ struct blk_plug plug;
+ blk_start_plug(&plug);
for (i = 0; i < *batch_count; i++)
- write_dirty_buffer(bhs[i], WRITE);
+ write_dirty_buffer(bhs[i], WRITE_SYNC);
+ blk_finish_plug(&plug);
for (i = 0; i < *batch_count; i++) {
struct buffer_head *bh = bhs[i];
@@ -304,12 +312,12 @@ static int __process_buffer(journal_t *journal, struct journal_head *jh,
ret = 1;
if (unlikely(buffer_write_io_error(bh)))
ret = -EIO;
+ get_bh(bh);
J_ASSERT_JH(jh, !buffer_jbddirty(bh));
BUFFER_TRACE(bh, "remove from checkpoint");
__journal_remove_checkpoint(jh);
spin_unlock(&journal->j_list_lock);
jbd_unlock_bh_state(bh);
- journal_remove_journal_head(bh);
__brelse(bh);
} else {
/*
@@ -358,6 +366,7 @@ int log_do_checkpoint(journal_t *journal)
* journal straight away.
*/
result = cleanup_journal_tail(journal);
+ trace_jbd_checkpoint(journal, result);
jbd_debug(1, "cleanup_journal_tail returned %d\n", result);
if (result <= 0)
return result;
@@ -503,6 +512,7 @@ int cleanup_journal_tail(journal_t *journal)
if (blocknr < journal->j_tail)
freed = freed + journal->j_last - journal->j_first;
+ trace_jbd_cleanup_journal_tail(journal, first_tid, blocknr, freed);
jbd_debug(1,
"Cleaning journal tail from %d to %d (offset %u), "
"freeing %u\n",
@@ -523,9 +533,9 @@ int cleanup_journal_tail(journal_t *journal)
/*
* journal_clean_one_cp_list
*
- * Find all the written-back checkpoint buffers in the given list and release them.
+ * Find all the written-back checkpoint buffers in the given list and release
+ * them.
*
- * Called with the journal locked.
* Called with j_list_lock held.
* Returns number of bufers reaped (for debug)
*/
@@ -632,8 +642,8 @@ out:
* checkpoint lists.
*
* The function returns 1 if it frees the transaction, 0 otherwise.
+ * The function can free jh and bh.
*
- * This function is called with the journal locked.
* This function is called with j_list_lock held.
* This function is called with jbd_lock_bh_state(jh2bh(jh))
*/
@@ -652,13 +662,14 @@ int __journal_remove_checkpoint(struct journal_head *jh)
}
journal = transaction->t_journal;
+ JBUFFER_TRACE(jh, "removing from transaction");
__buffer_unlink(jh);
jh->b_cp_transaction = NULL;
+ journal_put_journal_head(jh);
if (transaction->t_checkpoint_list != NULL ||
transaction->t_checkpoint_io_list != NULL)
goto out;
- JBUFFER_TRACE(jh, "transaction has no more buffers");
/*
* There is one special case to worry about: if we have just pulled the
@@ -669,10 +680,8 @@ int __journal_remove_checkpoint(struct journal_head *jh)
* The locking here around t_state is a bit sleazy.
* See the comment at the end of journal_commit_transaction().
*/
- if (transaction->t_state != T_FINISHED) {
- JBUFFER_TRACE(jh, "belongs to running/committing transaction");
+ if (transaction->t_state != T_FINISHED)
goto out;
- }
/* OK, that was the last buffer for the transaction: we can now
safely remove this transaction from the log */
@@ -684,7 +693,6 @@ int __journal_remove_checkpoint(struct journal_head *jh)
wake_up(&journal->j_wait_logspace);
ret = 1;
out:
- JBUFFER_TRACE(jh, "exit");
return ret;
}
@@ -703,6 +711,8 @@ void __journal_insert_checkpoint(struct journal_head *jh,
J_ASSERT_JH(jh, buffer_dirty(jh2bh(jh)) || buffer_jbddirty(jh2bh(jh)));
J_ASSERT_JH(jh, jh->b_cp_transaction == NULL);
+ /* Get reference for checkpointing transaction */
+ journal_grab_journal_head(jh2bh(jh));
jh->b_cp_transaction = transaction;
if (!transaction->t_checkpoint_list) {
@@ -752,6 +762,7 @@ void __journal_drop_transaction(journal_t *journal, transaction_t *transaction)
J_ASSERT(journal->j_committing_transaction != transaction);
J_ASSERT(journal->j_running_transaction != transaction);
+ trace_jbd_drop_transaction(journal, transaction);
jbd_debug(1, "Dropping transaction %d, all done\n", transaction->t_tid);
kfree(transaction);
}
diff --git a/fs/jbd/commit.c b/fs/jbd/commit.c
index 72ffa974b0b..8799207df05 100644
--- a/fs/jbd/commit.c
+++ b/fs/jbd/commit.c
@@ -21,6 +21,7 @@
#include <linux/pagemap.h>
#include <linux/bio.h>
#include <linux/blkdev.h>
+#include <trace/events/jbd.h>
/*
* Default IO end handler for temporary BJ_IO buffer_heads.
@@ -204,6 +205,8 @@ write_out_data:
if (!trylock_buffer(bh)) {
BUFFER_TRACE(bh, "needs blocking lock");
spin_unlock(&journal->j_list_lock);
+ trace_jbd_do_submit_data(journal,
+ commit_transaction);
/* Write out all data to prevent deadlocks */
journal_do_submit_data(wbuf, bufs, write_op);
bufs = 0;
@@ -236,6 +239,8 @@ write_out_data:
jbd_unlock_bh_state(bh);
if (bufs == journal->j_wbufsize) {
spin_unlock(&journal->j_list_lock);
+ trace_jbd_do_submit_data(journal,
+ commit_transaction);
journal_do_submit_data(wbuf, bufs, write_op);
bufs = 0;
goto write_out_data;
@@ -253,10 +258,6 @@ write_out_data:
jbd_unlock_bh_state(bh);
if (locked)
unlock_buffer(bh);
- journal_remove_journal_head(bh);
- /* One for our safety reference, other for
- * journal_remove_journal_head() */
- put_bh(bh);
release_data_buffer(bh);
}
@@ -266,6 +267,7 @@ write_out_data:
}
}
spin_unlock(&journal->j_list_lock);
+ trace_jbd_do_submit_data(journal, commit_transaction);
journal_do_submit_data(wbuf, bufs, write_op);
return err;
@@ -316,12 +318,14 @@ void journal_commit_transaction(journal_t *journal)
commit_transaction = journal->j_running_transaction;
J_ASSERT(commit_transaction->t_state == T_RUNNING);
+ trace_jbd_start_commit(journal, commit_transaction);
jbd_debug(1, "JBD: starting commit of transaction %d\n",
commit_transaction->t_tid);
spin_lock(&journal->j_state_lock);
commit_transaction->t_state = T_LOCKED;
+ trace_jbd_commit_locking(journal, commit_transaction);
spin_lock(&commit_transaction->t_handle_lock);
while (commit_transaction->t_updates) {
DEFINE_WAIT(wait);
@@ -392,6 +396,7 @@ void journal_commit_transaction(journal_t *journal)
*/
journal_switch_revoke_table(journal);
+ trace_jbd_commit_flushing(journal, commit_transaction);
commit_transaction->t_state = T_FLUSH;
journal->j_committing_transaction = commit_transaction;
journal->j_running_transaction = NULL;
@@ -446,14 +451,9 @@ void journal_commit_transaction(journal_t *journal)
}
if (buffer_jbd(bh) && bh2jh(bh) == jh &&
jh->b_transaction == commit_transaction &&
- jh->b_jlist == BJ_Locked) {
+ jh->b_jlist == BJ_Locked)
__journal_unfile_buffer(jh);
- jbd_unlock_bh_state(bh);
- journal_remove_journal_head(bh);
- put_bh(bh);
- } else {
- jbd_unlock_bh_state(bh);
- }
+ jbd_unlock_bh_state(bh);
release_data_buffer(bh);
cond_resched_lock(&journal->j_list_lock);
}
@@ -493,6 +493,7 @@ void journal_commit_transaction(journal_t *journal)
commit_transaction->t_state = T_COMMIT;
spin_unlock(&journal->j_state_lock);
+ trace_jbd_commit_logging(journal, commit_transaction);
J_ASSERT(commit_transaction->t_nr_buffers <=
commit_transaction->t_outstanding_credits);
@@ -797,10 +798,16 @@ restart_loop:
while (commit_transaction->t_forget) {
transaction_t *cp_transaction;
struct buffer_head *bh;
+ int try_to_free = 0;
jh = commit_transaction->t_forget;
spin_unlock(&journal->j_list_lock);
bh = jh2bh(jh);
+ /*
+ * Get a reference so that bh cannot be freed before we are
+ * done with it.
+ */
+ get_bh(bh);
jbd_lock_bh_state(bh);
J_ASSERT_JH(jh, jh->b_transaction == commit_transaction ||
jh->b_transaction == journal->j_running_transaction);
@@ -858,28 +865,27 @@ restart_loop:
__journal_insert_checkpoint(jh, commit_transaction);
if (is_journal_aborted(journal))
clear_buffer_jbddirty(bh);
- JBUFFER_TRACE(jh, "refile for checkpoint writeback");
- __journal_refile_buffer(jh);
- jbd_unlock_bh_state(bh);
} else {
J_ASSERT_BH(bh, !buffer_dirty(bh));
- /* The buffer on BJ_Forget list and not jbddirty means
+ /*
+ * The buffer on BJ_Forget list and not jbddirty means
* it has been freed by this transaction and hence it
* could not have been reallocated until this
* transaction has committed. *BUT* it could be
* reallocated once we have written all the data to
* disk and before we process the buffer on BJ_Forget
- * list. */
- JBUFFER_TRACE(jh, "refile or unfile freed buffer");
- __journal_refile_buffer(jh);
- if (!jh->b_transaction) {
- jbd_unlock_bh_state(bh);
- /* needs a brelse */
- journal_remove_journal_head(bh);
- release_buffer_page(bh);
- } else
- jbd_unlock_bh_state(bh);
+ * list.
+ */
+ if (!jh->b_next_transaction)
+ try_to_free = 1;
}
+ JBUFFER_TRACE(jh, "refile or unfile freed buffer");
+ __journal_refile_buffer(jh);
+ jbd_unlock_bh_state(bh);
+ if (try_to_free)
+ release_buffer_page(bh);
+ else
+ __brelse(bh);
cond_resched_lock(&journal->j_list_lock);
}
spin_unlock(&journal->j_list_lock);
@@ -946,6 +952,7 @@ restart_loop:
}
spin_unlock(&journal->j_list_lock);
+ trace_jbd_end_commit(journal, commit_transaction);
jbd_debug(1, "JBD: commit %d complete, head %d\n",
journal->j_commit_sequence, journal->j_tail_sequence);
diff --git a/fs/jbd/journal.c b/fs/jbd/journal.c
index e2d4285fbe9..9fe061fb877 100644
--- a/fs/jbd/journal.c
+++ b/fs/jbd/journal.c
@@ -38,6 +38,9 @@
#include <linux/debugfs.h>
#include <linux/ratelimit.h>
+#define CREATE_TRACE_POINTS
+#include <trace/events/jbd.h>
+
#include <asm/uaccess.h>
#include <asm/page.h>
@@ -1065,6 +1068,7 @@ void journal_update_superblock(journal_t *journal, int wait)
} else
write_dirty_buffer(bh, WRITE);
+ trace_jbd_update_superblock_end(journal, wait);
out:
/* If we have just flushed the log (by marking s_start==0), then
* any future commit will have to be careful to update the
@@ -1799,10 +1803,9 @@ static void journal_free_journal_head(struct journal_head *jh)
* When a buffer has its BH_JBD bit set it is immune from being released by
* core kernel code, mainly via ->b_count.
*
- * A journal_head may be detached from its buffer_head when the journal_head's
- * b_transaction, b_cp_transaction and b_next_transaction pointers are NULL.
- * Various places in JBD call journal_remove_journal_head() to indicate that the
- * journal_head can be dropped if needed.
+ * A journal_head is detached from its buffer_head when the journal_head's
+ * b_jcount reaches zero. Running transaction (b_transaction) and checkpoint
+ * transaction (b_cp_transaction) hold their references to b_jcount.
*
* Various places in the kernel want to attach a journal_head to a buffer_head
* _before_ attaching the journal_head to a transaction. To protect the
@@ -1815,17 +1818,16 @@ static void journal_free_journal_head(struct journal_head *jh)
* (Attach a journal_head if needed. Increments b_jcount)
* struct journal_head *jh = journal_add_journal_head(bh);
* ...
- * jh->b_transaction = xxx;
- * journal_put_journal_head(jh);
- *
- * Now, the journal_head's b_jcount is zero, but it is safe from being released
- * because it has a non-zero b_transaction.
+ * (Get another reference for transaction)
+ * journal_grab_journal_head(bh);
+ * jh->b_transaction = xxx;
+ * (Put original reference)
+ * journal_put_journal_head(jh);
*/
/*
* Give a buffer_head a journal_head.
*
- * Doesn't need the journal lock.
* May sleep.
*/
struct journal_head *journal_add_journal_head(struct buffer_head *bh)
@@ -1889,61 +1891,29 @@ static void __journal_remove_journal_head(struct buffer_head *bh)
struct journal_head *jh = bh2jh(bh);
J_ASSERT_JH(jh, jh->b_jcount >= 0);
-
- get_bh(bh);
- if (jh->b_jcount == 0) {
- if (jh->b_transaction == NULL &&
- jh->b_next_transaction == NULL &&
- jh->b_cp_transaction == NULL) {
- J_ASSERT_JH(jh, jh->b_jlist == BJ_None);
- J_ASSERT_BH(bh, buffer_jbd(bh));
- J_ASSERT_BH(bh, jh2bh(jh) == bh);
- BUFFER_TRACE(bh, "remove journal_head");
- if (jh->b_frozen_data) {
- printk(KERN_WARNING "%s: freeing "
- "b_frozen_data\n",
- __func__);
- jbd_free(jh->b_frozen_data, bh->b_size);
- }
- if (jh->b_committed_data) {
- printk(KERN_WARNING "%s: freeing "
- "b_committed_data\n",
- __func__);
- jbd_free(jh->b_committed_data, bh->b_size);
- }
- bh->b_private = NULL;
- jh->b_bh = NULL; /* debug, really */
- clear_buffer_jbd(bh);
- __brelse(bh);
- journal_free_journal_head(jh);
- } else {
- BUFFER_TRACE(bh, "journal_head was locked");
- }
+ J_ASSERT_JH(jh, jh->b_transaction == NULL);
+ J_ASSERT_JH(jh, jh->b_next_transaction == NULL);
+ J_ASSERT_JH(jh, jh->b_cp_transaction == NULL);
+ J_ASSERT_JH(jh, jh->b_jlist == BJ_None);
+ J_ASSERT_BH(bh, buffer_jbd(bh));
+ J_ASSERT_BH(bh, jh2bh(jh) == bh);
+ BUFFER_TRACE(bh, "remove journal_head");
+ if (jh->b_frozen_data) {
+ printk(KERN_WARNING "%s: freeing b_frozen_data\n", __func__);
+ jbd_free(jh->b_frozen_data, bh->b_size);
}
+ if (jh->b_committed_data) {
+ printk(KERN_WARNING "%s: freeing b_committed_data\n", __func__);
+ jbd_free(jh->b_committed_data, bh->b_size);
+ }
+ bh->b_private = NULL;
+ jh->b_bh = NULL; /* debug, really */
+ clear_buffer_jbd(bh);
+ journal_free_journal_head(jh);
}
/*
- * journal_remove_journal_head(): if the buffer isn't attached to a transaction
- * and has a zero b_jcount then remove and release its journal_head. If we did
- * see that the buffer is not used by any transaction we also "logically"
- * decrement ->b_count.
- *
- * We in fact take an additional increment on ->b_count as a convenience,
- * because the caller usually wants to do additional things with the bh
- * after calling here.
- * The caller of journal_remove_journal_head() *must* run __brelse(bh) at some
- * time. Once the caller has run __brelse(), the buffer is eligible for
- * reaping by try_to_free_buffers().
- */
-void journal_remove_journal_head(struct buffer_head *bh)
-{
- jbd_lock_bh_journal_head(bh);
- __journal_remove_journal_head(bh);
- jbd_unlock_bh_journal_head(bh);
-}
-
-/*
- * Drop a reference on the passed journal_head. If it fell to zero then try to
+ * Drop a reference on the passed journal_head. If it fell to zero then
* release the journal_head from the buffer_head.
*/
void journal_put_journal_head(struct journal_head *jh)
@@ -1953,11 +1923,12 @@ void journal_put_journal_head(struct journal_head *jh)
jbd_lock_bh_journal_head(bh);
J_ASSERT_JH(jh, jh->b_jcount > 0);
--jh->b_jcount;
- if (!jh->b_jcount && !jh->b_transaction) {
+ if (!jh->b_jcount) {
__journal_remove_journal_head(bh);
+ jbd_unlock_bh_journal_head(bh);
__brelse(bh);
- }
- jbd_unlock_bh_journal_head(bh);
+ } else
+ jbd_unlock_bh_journal_head(bh);
}
/*
diff --git a/fs/jbd/transaction.c b/fs/jbd/transaction.c
index f7ee81a065d..7e59c6e66f9 100644
--- a/fs/jbd/transaction.c
+++ b/fs/jbd/transaction.c
@@ -26,6 +26,7 @@
#include <linux/mm.h>
#include <linux/highmem.h>
#include <linux/hrtimer.h>
+#include <linux/backing-dev.h>
static void __journal_temp_unlink_buffer(struct journal_head *jh);
@@ -99,11 +100,10 @@ static int start_this_handle(journal_t *journal, handle_t *handle)
alloc_transaction:
if (!journal->j_running_transaction) {
- new_transaction = kzalloc(sizeof(*new_transaction),
- GFP_NOFS|__GFP_NOFAIL);
+ new_transaction = kzalloc(sizeof(*new_transaction), GFP_NOFS);
if (!new_transaction) {
- ret = -ENOMEM;
- goto out;
+ congestion_wait(BLK_RW_ASYNC, HZ/50);
+ goto alloc_transaction;
}
}
@@ -696,7 +696,6 @@ repeat:
if (!jh->b_transaction) {
JBUFFER_TRACE(jh, "no transaction");
J_ASSERT_JH(jh, !jh->b_next_transaction);
- jh->b_transaction = transaction;
JBUFFER_TRACE(jh, "file as BJ_Reserved");
spin_lock(&journal->j_list_lock);
__journal_file_buffer(jh, transaction, BJ_Reserved);
@@ -818,7 +817,6 @@ int journal_get_create_access(handle_t *handle, struct buffer_head *bh)
* committed and so it's safe to clear the dirty bit.
*/
clear_buffer_dirty(jh2bh(jh));
- jh->b_transaction = transaction;
/* first access by this transaction */
jh->b_modified = 0;
@@ -844,8 +842,8 @@ int journal_get_create_access(handle_t *handle, struct buffer_head *bh)
*/
JBUFFER_TRACE(jh, "cancelling revoke");
journal_cancel_revoke(handle, jh);
- journal_put_journal_head(jh);
out:
+ journal_put_journal_head(jh);
return err;
}
@@ -1069,8 +1067,9 @@ int journal_dirty_data(handle_t *handle, struct buffer_head *bh)
ret = -EIO;
goto no_journal;
}
-
- if (jh->b_transaction != NULL) {
+ /* We might have slept so buffer could be refiled now */
+ if (jh->b_transaction != NULL &&
+ jh->b_transaction != handle->h_transaction) {
JBUFFER_TRACE(jh, "unfile from commit");
__journal_temp_unlink_buffer(jh);
/* It still points to the committing
@@ -1091,8 +1090,6 @@ int journal_dirty_data(handle_t *handle, struct buffer_head *bh)
if (jh->b_jlist != BJ_SyncData && jh->b_jlist != BJ_Locked) {
JBUFFER_TRACE(jh, "not on correct data list: unfile");
J_ASSERT_JH(jh, jh->b_jlist != BJ_Shadow);
- __journal_temp_unlink_buffer(jh);
- jh->b_transaction = handle->h_transaction;
JBUFFER_TRACE(jh, "file as data");
__journal_file_buffer(jh, handle->h_transaction,
BJ_SyncData);
@@ -1300,8 +1297,6 @@ int journal_forget (handle_t *handle, struct buffer_head *bh)
__journal_file_buffer(jh, transaction, BJ_Forget);
} else {
__journal_unfile_buffer(jh);
- journal_remove_journal_head(bh);
- __brelse(bh);
if (!buffer_jbd(bh)) {
spin_unlock(&journal->j_list_lock);
jbd_unlock_bh_state(bh);
@@ -1622,19 +1617,32 @@ static void __journal_temp_unlink_buffer(struct journal_head *jh)
mark_buffer_dirty(bh); /* Expose it to the VM */
}
+/*
+ * Remove buffer from all transactions.
+ *
+ * Called with bh_state lock and j_list_lock
+ *
+ * jh and bh may be already freed when this function returns.
+ */
void __journal_unfile_buffer(struct journal_head *jh)
{
__journal_temp_unlink_buffer(jh);
jh->b_transaction = NULL;
+ journal_put_journal_head(jh);
}
void journal_unfile_buffer(journal_t *journal, struct journal_head *jh)
{
- jbd_lock_bh_state(jh2bh(jh));
+ struct buffer_head *bh = jh2bh(jh);
+
+ /* Get reference so that buffer cannot be freed before we unlock it */
+ get_bh(bh);
+ jbd_lock_bh_state(bh);
spin_lock(&journal->j_list_lock);
__journal_unfile_buffer(jh);
spin_unlock(&journal->j_list_lock);
- jbd_unlock_bh_state(jh2bh(jh));
+ jbd_unlock_bh_state(bh);
+ __brelse(bh);
}
/*
@@ -1661,16 +1669,12 @@ __journal_try_to_free_buffer(journal_t *journal, struct buffer_head *bh)
/* A written-back ordered data buffer */
JBUFFER_TRACE(jh, "release data");
__journal_unfile_buffer(jh);
- journal_remove_journal_head(bh);
- __brelse(bh);
}
} else if (jh->b_cp_transaction != NULL && jh->b_transaction == NULL) {
/* written-back checkpointed metadata buffer */
if (jh->b_jlist == BJ_None) {
JBUFFER_TRACE(jh, "remove from checkpoint list");
__journal_remove_checkpoint(jh);
- journal_remove_journal_head(bh);
- __brelse(bh);
}
}
spin_unlock(&journal->j_list_lock);
@@ -1733,7 +1737,7 @@ int journal_try_to_free_buffers(journal_t *journal,
/*
* We take our own ref against the journal_head here to avoid
* having to add tons of locking around each instance of
- * journal_remove_journal_head() and journal_put_journal_head().
+ * journal_put_journal_head().
*/
jh = journal_grab_journal_head(bh);
if (!jh)
@@ -1770,10 +1774,9 @@ static int __dispose_buffer(struct journal_head *jh, transaction_t *transaction)
int may_free = 1;
struct buffer_head *bh = jh2bh(jh);
- __journal_unfile_buffer(jh);
-
if (jh->b_cp_transaction) {
JBUFFER_TRACE(jh, "on running+cp transaction");
+ __journal_temp_unlink_buffer(jh);
/*
* We don't want to write the buffer anymore, clear the
* bit so that we don't confuse checks in
@@ -1784,8 +1787,7 @@ static int __dispose_buffer(struct journal_head *jh, transaction_t *transaction)
may_free = 0;
} else {
JBUFFER_TRACE(jh, "on running transaction");
- journal_remove_journal_head(bh);
- __brelse(bh);
+ __journal_unfile_buffer(jh);
}
return may_free;
}
@@ -2070,6 +2072,8 @@ void __journal_file_buffer(struct journal_head *jh,
if (jh->b_transaction)
__journal_temp_unlink_buffer(jh);
+ else
+ journal_grab_journal_head(bh);
jh->b_transaction = transaction;
switch (jlist) {
@@ -2127,9 +2131,10 @@ void journal_file_buffer(struct journal_head *jh,
* already started to be used by a subsequent transaction, refile the
* buffer on that transaction's metadata list.
*
- * Called under journal->j_list_lock
- *
+ * Called under j_list_lock
* Called under jbd_lock_bh_state(jh2bh(jh))
+ *
+ * jh and bh may be already free when this function returns
*/
void __journal_refile_buffer(struct journal_head *jh)
{
@@ -2153,6 +2158,11 @@ void __journal_refile_buffer(struct journal_head *jh)
was_dirty = test_clear_buffer_jbddirty(bh);
__journal_temp_unlink_buffer(jh);
+ /*
+ * We set b_transaction here because b_next_transaction will inherit
+ * our jh reference and thus __journal_file_buffer() must not take a
+ * new one.
+ */
jh->b_transaction = jh->b_next_transaction;
jh->b_next_transaction = NULL;
if (buffer_freed(bh))
@@ -2169,30 +2179,21 @@ void __journal_refile_buffer(struct journal_head *jh)
}
/*
- * For the unlocked version of this call, also make sure that any
- * hanging journal_head is cleaned up if necessary.
- *
- * __journal_refile_buffer is usually called as part of a single locked
- * operation on a buffer_head, in which the caller is probably going to
- * be hooking the journal_head onto other lists. In that case it is up
- * to the caller to remove the journal_head if necessary. For the
- * unlocked journal_refile_buffer call, the caller isn't going to be
- * doing anything else to the buffer so we need to do the cleanup
- * ourselves to avoid a jh leak.
- *
- * *** The journal_head may be freed by this call! ***
+ * __journal_refile_buffer() with necessary locking added. We take our bh
+ * reference so that we can safely unlock bh.
+ *
+ * The jh and bh may be freed by this call.
*/
void journal_refile_buffer(journal_t *journal, struct journal_head *jh)
{
struct buffer_head *bh = jh2bh(jh);
+ /* Get reference so that buffer cannot be freed before we unlock it */
+ get_bh(bh);
jbd_lock_bh_state(bh);
spin_lock(&journal->j_list_lock);
-
__journal_refile_buffer(jh);
jbd_unlock_bh_state(bh);
- journal_remove_journal_head(bh);
-
spin_unlock(&journal->j_list_lock);
__brelse(bh);
}
diff --git a/fs/jffs2/acl.c b/fs/jffs2/acl.c
index 3675b3cdee8..27c511a1cf0 100644
--- a/fs/jffs2/acl.c
+++ b/fs/jffs2/acl.c
@@ -156,7 +156,7 @@ static void *jffs2_acl_to_medium(const struct posix_acl *acl, size_t *size)
return ERR_PTR(-EINVAL);
}
-static struct posix_acl *jffs2_get_acl(struct inode *inode, int type)
+struct posix_acl *jffs2_get_acl(struct inode *inode, int type)
{
struct posix_acl *acl;
char *value = NULL;
@@ -259,30 +259,11 @@ static int jffs2_set_acl(struct inode *inode, int type, struct posix_acl *acl)
return rc;
}
-int jffs2_check_acl(struct inode *inode, int mask)
+int jffs2_init_acl_pre(struct inode *dir_i, struct inode *inode, mode_t *i_mode)
{
struct posix_acl *acl;
int rc;
- if (mask & MAY_NOT_BLOCK)
- return -ECHILD;
-
- acl = jffs2_get_acl(inode, ACL_TYPE_ACCESS);
- if (IS_ERR(acl))
- return PTR_ERR(acl);
- if (acl) {
- rc = posix_acl_permission(inode, acl, mask);
- posix_acl_release(acl);
- return rc;
- }
- return -EAGAIN;
-}
-
-int jffs2_init_acl_pre(struct inode *dir_i, struct inode *inode, int *i_mode)
-{
- struct posix_acl *acl, *clone;
- int rc;
-
cache_no_acl(inode);
if (S_ISLNK(*i_mode))
@@ -298,18 +279,13 @@ int jffs2_init_acl_pre(struct inode *dir_i, struct inode *inode, int *i_mode)
if (S_ISDIR(*i_mode))
set_cached_acl(inode, ACL_TYPE_DEFAULT, acl);
- clone = posix_acl_clone(acl, GFP_KERNEL);
- if (!clone)
- return -ENOMEM;
- rc = posix_acl_create_masq(clone, (mode_t *)i_mode);
- if (rc < 0) {
- posix_acl_release(clone);
+ rc = posix_acl_create(&acl, GFP_KERNEL, i_mode);
+ if (rc < 0)
return rc;
- }
if (rc > 0)
- set_cached_acl(inode, ACL_TYPE_ACCESS, clone);
+ set_cached_acl(inode, ACL_TYPE_ACCESS, acl);
- posix_acl_release(clone);
+ posix_acl_release(acl);
}
return 0;
}
@@ -335,7 +311,7 @@ int jffs2_init_acl_post(struct inode *inode)
int jffs2_acl_chmod(struct inode *inode)
{
- struct posix_acl *acl, *clone;
+ struct posix_acl *acl;
int rc;
if (S_ISLNK(inode->i_mode))
@@ -343,14 +319,11 @@ int jffs2_acl_chmod(struct inode *inode)
acl = jffs2_get_acl(inode, ACL_TYPE_ACCESS);
if (IS_ERR(acl) || !acl)
return PTR_ERR(acl);
- clone = posix_acl_clone(acl, GFP_KERNEL);
+ rc = posix_acl_chmod(&acl, GFP_KERNEL, inode->i_mode);
+ if (rc)
+ return rc;
+ rc = jffs2_set_acl(inode, ACL_TYPE_ACCESS, acl);
posix_acl_release(acl);
- if (!clone)
- return -ENOMEM;
- rc = posix_acl_chmod_masq(clone, inode->i_mode);
- if (!rc)
- rc = jffs2_set_acl(inode, ACL_TYPE_ACCESS, clone);
- posix_acl_release(clone);
return rc;
}
diff --git a/fs/jffs2/acl.h b/fs/jffs2/acl.h
index 5e42de8d954..b3421c78d9f 100644
--- a/fs/jffs2/acl.h
+++ b/fs/jffs2/acl.h
@@ -26,9 +26,9 @@ struct jffs2_acl_header {
#ifdef CONFIG_JFFS2_FS_POSIX_ACL
-extern int jffs2_check_acl(struct inode *, int);
+struct posix_acl *jffs2_get_acl(struct inode *inode, int type);
extern int jffs2_acl_chmod(struct inode *);
-extern int jffs2_init_acl_pre(struct inode *, struct inode *, int *);
+extern int jffs2_init_acl_pre(struct inode *, struct inode *, mode_t *);
extern int jffs2_init_acl_post(struct inode *);
extern const struct xattr_handler jffs2_acl_access_xattr_handler;
@@ -36,7 +36,7 @@ extern const struct xattr_handler jffs2_acl_default_xattr_handler;
#else
-#define jffs2_check_acl (NULL)
+#define jffs2_get_acl (NULL)
#define jffs2_acl_chmod(inode) (0)
#define jffs2_init_acl_pre(dir_i,inode,mode) (0)
#define jffs2_init_acl_post(inode) (0)
diff --git a/fs/jffs2/dir.c b/fs/jffs2/dir.c
index 5f243cd63af..9659b7c0046 100644
--- a/fs/jffs2/dir.c
+++ b/fs/jffs2/dir.c
@@ -56,7 +56,7 @@ const struct inode_operations jffs2_dir_inode_operations =
.rmdir = jffs2_rmdir,
.mknod = jffs2_mknod,
.rename = jffs2_rename,
- .check_acl = jffs2_check_acl,
+ .get_acl = jffs2_get_acl,
.setattr = jffs2_setattr,
.setxattr = jffs2_setxattr,
.getxattr = jffs2_getxattr,
diff --git a/fs/jffs2/file.c b/fs/jffs2/file.c
index 3989f7e09f7..61e6723535b 100644
--- a/fs/jffs2/file.c
+++ b/fs/jffs2/file.c
@@ -63,7 +63,7 @@ const struct file_operations jffs2_file_operations =
const struct inode_operations jffs2_file_inode_operations =
{
- .check_acl = jffs2_check_acl,
+ .get_acl = jffs2_get_acl,
.setattr = jffs2_setattr,
.setxattr = jffs2_setxattr,
.getxattr = jffs2_getxattr,
diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c
index 46ad619b612..eeead33d8ef 100644
--- a/fs/jffs2/fs.c
+++ b/fs/jffs2/fs.c
@@ -406,7 +406,7 @@ int jffs2_remount_fs (struct super_block *sb, int *flags, char *data)
/* jffs2_new_inode: allocate a new inode and inocache, add it to the hash,
fill in the raw_inode while you're at it. */
-struct inode *jffs2_new_inode (struct inode *dir_i, int mode, struct jffs2_raw_inode *ri)
+struct inode *jffs2_new_inode (struct inode *dir_i, mode_t mode, struct jffs2_raw_inode *ri)
{
struct inode *inode;
struct super_block *sb = dir_i->i_sb;
diff --git a/fs/jffs2/os-linux.h b/fs/jffs2/os-linux.h
index 9c252835e8e..526979c607b 100644
--- a/fs/jffs2/os-linux.h
+++ b/fs/jffs2/os-linux.h
@@ -173,7 +173,7 @@ int jffs2_do_setattr (struct inode *, struct iattr *);
struct inode *jffs2_iget(struct super_block *, unsigned long);
void jffs2_evict_inode (struct inode *);
void jffs2_dirty_inode(struct inode *inode, int flags);
-struct inode *jffs2_new_inode (struct inode *dir_i, int mode,
+struct inode *jffs2_new_inode (struct inode *dir_i, mode_t mode,
struct jffs2_raw_inode *ri);
int jffs2_statfs (struct dentry *, struct kstatfs *);
int jffs2_remount_fs (struct super_block *, int *, char *);
diff --git a/fs/jffs2/readinode.c b/fs/jffs2/readinode.c
index 2ab1a0d9121..ee57bac1ba6 100644
--- a/fs/jffs2/readinode.c
+++ b/fs/jffs2/readinode.c
@@ -1041,7 +1041,7 @@ static int jffs2_get_inode_nodes(struct jffs2_sb_info *c, struct jffs2_inode_inf
/* FIXME: point() */
err = jffs2_flash_read(c, ref_offset(ref), len, &retlen, buf);
if (err) {
- JFFS2_ERROR("can not read %d bytes from 0x%08x, " "error code: %d.\n", len, ref_offset(ref), err);
+ JFFS2_ERROR("can not read %d bytes from 0x%08x, error code: %d.\n", len, ref_offset(ref), err);
goto free_out;
}
diff --git a/fs/jffs2/symlink.c b/fs/jffs2/symlink.c
index b955626071c..e3035afb181 100644
--- a/fs/jffs2/symlink.c
+++ b/fs/jffs2/symlink.c
@@ -20,7 +20,7 @@ const struct inode_operations jffs2_symlink_inode_operations =
{
.readlink = generic_readlink,
.follow_link = jffs2_follow_link,
- .check_acl = jffs2_check_acl,
+ .get_acl = jffs2_get_acl,
.setattr = jffs2_setattr,
.setxattr = jffs2_setxattr,
.getxattr = jffs2_getxattr,
diff --git a/fs/jfs/acl.c b/fs/jfs/acl.c
index 8a0a0666d5a..b3a32caf2b4 100644
--- a/fs/jfs/acl.c
+++ b/fs/jfs/acl.c
@@ -27,7 +27,7 @@
#include "jfs_xattr.h"
#include "jfs_acl.h"
-static struct posix_acl *jfs_get_acl(struct inode *inode, int type)
+struct posix_acl *jfs_get_acl(struct inode *inode, int type)
{
struct posix_acl *acl;
char *ea_name;
@@ -114,30 +114,9 @@ out:
return rc;
}
-int jfs_check_acl(struct inode *inode, int mask)
-{
- struct posix_acl *acl;
-
- if (mask & MAY_NOT_BLOCK)
- return -ECHILD;
-
- acl = jfs_get_acl(inode, ACL_TYPE_ACCESS);
- if (IS_ERR(acl))
- return PTR_ERR(acl);
- if (acl) {
- int error = posix_acl_permission(inode, acl, mask);
- posix_acl_release(acl);
- return error;
- }
-
- return -EAGAIN;
-}
-
int jfs_init_acl(tid_t tid, struct inode *inode, struct inode *dir)
{
struct posix_acl *acl = NULL;
- struct posix_acl *clone;
- mode_t mode;
int rc = 0;
if (S_ISLNK(inode->i_mode))
@@ -148,25 +127,18 @@ int jfs_init_acl(tid_t tid, struct inode *inode, struct inode *dir)
return PTR_ERR(acl);
if (acl) {
+ mode_t mode = inode->i_mode;
if (S_ISDIR(inode->i_mode)) {
rc = jfs_set_acl(tid, inode, ACL_TYPE_DEFAULT, acl);
if (rc)
goto cleanup;
}
- clone = posix_acl_clone(acl, GFP_KERNEL);
- if (!clone) {
- rc = -ENOMEM;
- goto cleanup;
- }
- mode = inode->i_mode;
- rc = posix_acl_create_masq(clone, &mode);
- if (rc >= 0) {
- inode->i_mode = mode;
- if (rc > 0)
- rc = jfs_set_acl(tid, inode, ACL_TYPE_ACCESS,
- clone);
- }
- posix_acl_release(clone);
+ rc = posix_acl_create(&acl, GFP_KERNEL, &mode);
+ if (rc < 0)
+ goto cleanup; /* posix_acl_release(NULL) is no-op */
+ inode->i_mode = mode;
+ if (rc > 0)
+ rc = jfs_set_acl(tid, inode, ACL_TYPE_ACCESS, acl);
cleanup:
posix_acl_release(acl);
} else
@@ -180,8 +152,9 @@ cleanup:
int jfs_acl_chmod(struct inode *inode)
{
- struct posix_acl *acl, *clone;
+ struct posix_acl *acl;
int rc;
+ tid_t tid;
if (S_ISLNK(inode->i_mode))
return -EOPNOTSUPP;
@@ -190,22 +163,18 @@ int jfs_acl_chmod(struct inode *inode)
if (IS_ERR(acl) || !acl)
return PTR_ERR(acl);
- clone = posix_acl_clone(acl, GFP_KERNEL);
- posix_acl_release(acl);
- if (!clone)
- return -ENOMEM;
-
- rc = posix_acl_chmod_masq(clone, inode->i_mode);
- if (!rc) {
- tid_t tid = txBegin(inode->i_sb, 0);
- mutex_lock(&JFS_IP(inode)->commit_mutex);
- rc = jfs_set_acl(tid, inode, ACL_TYPE_ACCESS, clone);
- if (!rc)
- rc = txCommit(tid, 1, &inode, 0);
- txEnd(tid);
- mutex_unlock(&JFS_IP(inode)->commit_mutex);
- }
+ rc = posix_acl_chmod(&acl, GFP_KERNEL, inode->i_mode);
+ if (rc)
+ return rc;
- posix_acl_release(clone);
+ tid = txBegin(inode->i_sb, 0);
+ mutex_lock(&JFS_IP(inode)->commit_mutex);
+ rc = jfs_set_acl(tid, inode, ACL_TYPE_ACCESS, acl);
+ if (!rc)
+ rc = txCommit(tid, 1, &inode, 0);
+ txEnd(tid);
+ mutex_unlock(&JFS_IP(inode)->commit_mutex);
+
+ posix_acl_release(acl);
return rc;
}
diff --git a/fs/jfs/file.c b/fs/jfs/file.c
index 7527855b5cc..844f9460cb1 100644
--- a/fs/jfs/file.c
+++ b/fs/jfs/file.c
@@ -140,7 +140,7 @@ const struct inode_operations jfs_file_inode_operations = {
.removexattr = jfs_removexattr,
.setattr = jfs_setattr,
#ifdef CONFIG_JFS_POSIX_ACL
- .check_acl = jfs_check_acl,
+ .get_acl = jfs_get_acl,
#endif
};
diff --git a/fs/jfs/jfs_acl.h b/fs/jfs/jfs_acl.h
index 54e07559878..ad84fe50ca9 100644
--- a/fs/jfs/jfs_acl.h
+++ b/fs/jfs/jfs_acl.h
@@ -20,7 +20,7 @@
#ifdef CONFIG_JFS_POSIX_ACL
-int jfs_check_acl(struct inode *, int);
+struct posix_acl *jfs_get_acl(struct inode *inode, int type);
int jfs_init_acl(tid_t, struct inode *, struct inode *);
int jfs_acl_chmod(struct inode *inode);
diff --git a/fs/jfs/namei.c b/fs/jfs/namei.c
index 03787ef6a11..29b1f1a2114 100644
--- a/fs/jfs/namei.c
+++ b/fs/jfs/namei.c
@@ -1537,7 +1537,7 @@ const struct inode_operations jfs_dir_inode_operations = {
.removexattr = jfs_removexattr,
.setattr = jfs_setattr,
#ifdef CONFIG_JFS_POSIX_ACL
- .check_acl = jfs_check_acl,
+ .get_acl = jfs_get_acl,
#endif
};
diff --git a/fs/lockd/svclock.c b/fs/lockd/svclock.c
index 6e31695d046..f0179c3745d 100644
--- a/fs/lockd/svclock.c
+++ b/fs/lockd/svclock.c
@@ -632,7 +632,7 @@ nlmsvc_cancel_blocked(struct nlm_file *file, struct nlm_lock *lock)
/*
* This is a callback from the filesystem for VFS file lock requests.
- * It will be used if fl_grant is defined and the filesystem can not
+ * It will be used if lm_grant is defined and the filesystem can not
* respond to the request immediately.
* For GETLK request it will copy the reply to the nlm_block.
* For SETLK or SETLKW request it will get the local posix lock.
@@ -719,9 +719,9 @@ static int nlmsvc_same_owner(struct file_lock *fl1, struct file_lock *fl2)
}
const struct lock_manager_operations nlmsvc_lock_operations = {
- .fl_compare_owner = nlmsvc_same_owner,
- .fl_notify = nlmsvc_notify_blocked,
- .fl_grant = nlmsvc_grant_deferred,
+ .lm_compare_owner = nlmsvc_same_owner,
+ .lm_notify = nlmsvc_notify_blocked,
+ .lm_grant = nlmsvc_grant_deferred,
};
/*
diff --git a/fs/locks.c b/fs/locks.c
index b286539d547..703f545097d 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -160,26 +160,20 @@ EXPORT_SYMBOL_GPL(unlock_flocks);
static struct kmem_cache *filelock_cache __read_mostly;
-static void locks_init_lock_always(struct file_lock *fl)
+static void locks_init_lock_heads(struct file_lock *fl)
{
- fl->fl_next = NULL;
- fl->fl_fasync = NULL;
- fl->fl_owner = NULL;
- fl->fl_pid = 0;
- fl->fl_nspid = NULL;
- fl->fl_file = NULL;
- fl->fl_flags = 0;
- fl->fl_type = 0;
- fl->fl_start = fl->fl_end = 0;
+ INIT_LIST_HEAD(&fl->fl_link);
+ INIT_LIST_HEAD(&fl->fl_block);
+ init_waitqueue_head(&fl->fl_wait);
}
/* Allocate an empty lock structure. */
struct file_lock *locks_alloc_lock(void)
{
- struct file_lock *fl = kmem_cache_alloc(filelock_cache, GFP_KERNEL);
+ struct file_lock *fl = kmem_cache_zalloc(filelock_cache, GFP_KERNEL);
if (fl)
- locks_init_lock_always(fl);
+ locks_init_lock_heads(fl);
return fl;
}
@@ -193,8 +187,8 @@ void locks_release_private(struct file_lock *fl)
fl->fl_ops = NULL;
}
if (fl->fl_lmops) {
- if (fl->fl_lmops->fl_release_private)
- fl->fl_lmops->fl_release_private(fl);
+ if (fl->fl_lmops->lm_release_private)
+ fl->fl_lmops->lm_release_private(fl);
fl->fl_lmops = NULL;
}
@@ -215,27 +209,12 @@ EXPORT_SYMBOL(locks_free_lock);
void locks_init_lock(struct file_lock *fl)
{
- INIT_LIST_HEAD(&fl->fl_link);
- INIT_LIST_HEAD(&fl->fl_block);
- init_waitqueue_head(&fl->fl_wait);
- fl->fl_ops = NULL;
- fl->fl_lmops = NULL;
- locks_init_lock_always(fl);
+ memset(fl, 0, sizeof(struct file_lock));
+ locks_init_lock_heads(fl);
}
EXPORT_SYMBOL(locks_init_lock);
-/*
- * Initialises the fields of the file lock which are invariant for
- * free file_locks.
- */
-static void init_once(void *foo)
-{
- struct file_lock *lock = (struct file_lock *) foo;
-
- locks_init_lock(lock);
-}
-
static void locks_copy_private(struct file_lock *new, struct file_lock *fl)
{
if (fl->fl_ops) {
@@ -444,9 +423,9 @@ static void lease_release_private_callback(struct file_lock *fl)
}
static const struct lock_manager_operations lease_manager_ops = {
- .fl_break = lease_break_callback,
- .fl_release_private = lease_release_private_callback,
- .fl_change = lease_modify,
+ .lm_break = lease_break_callback,
+ .lm_release_private = lease_release_private_callback,
+ .lm_change = lease_modify,
};
/*
@@ -499,9 +478,9 @@ static inline int locks_overlap(struct file_lock *fl1, struct file_lock *fl2)
*/
static int posix_same_owner(struct file_lock *fl1, struct file_lock *fl2)
{
- if (fl1->fl_lmops && fl1->fl_lmops->fl_compare_owner)
+ if (fl1->fl_lmops && fl1->fl_lmops->lm_compare_owner)
return fl2->fl_lmops == fl1->fl_lmops &&
- fl1->fl_lmops->fl_compare_owner(fl1, fl2);
+ fl1->fl_lmops->lm_compare_owner(fl1, fl2);
return fl1->fl_owner == fl2->fl_owner;
}
@@ -551,8 +530,8 @@ static void locks_wake_up_blocks(struct file_lock *blocker)
waiter = list_first_entry(&blocker->fl_block,
struct file_lock, fl_block);
__locks_delete_block(waiter);
- if (waiter->fl_lmops && waiter->fl_lmops->fl_notify)
- waiter->fl_lmops->fl_notify(waiter);
+ if (waiter->fl_lmops && waiter->fl_lmops->lm_notify)
+ waiter->fl_lmops->lm_notify(waiter);
else
wake_up(&waiter->fl_wait);
}
@@ -1239,7 +1218,7 @@ int __break_lease(struct inode *inode, unsigned int mode)
fl->fl_type = future;
fl->fl_break_time = break_time;
/* lease must have lmops break callback */
- fl->fl_lmops->fl_break(fl);
+ fl->fl_lmops->lm_break(fl);
}
}
@@ -1349,7 +1328,7 @@ int fcntl_getlease(struct file *filp)
* @arg: type of lease to obtain
* @flp: input - file_lock to use, output - file_lock inserted
*
- * The (input) flp->fl_lmops->fl_break function is required
+ * The (input) flp->fl_lmops->lm_break function is required
* by break_lease().
*
* Called with file_lock_lock held.
@@ -1375,7 +1354,7 @@ int generic_setlease(struct file *filp, long arg, struct file_lock **flp)
time_out_leases(inode);
- BUG_ON(!(*flp)->fl_lmops->fl_break);
+ BUG_ON(!(*flp)->fl_lmops->lm_break);
if (arg != F_UNLCK) {
error = -EAGAIN;
@@ -1417,7 +1396,7 @@ int generic_setlease(struct file *filp, long arg, struct file_lock **flp)
goto out;
if (my_before != NULL) {
- error = lease->fl_lmops->fl_change(my_before, arg);
+ error = lease->fl_lmops->lm_change(my_before, arg);
if (!error)
*flp = *my_before;
goto out;
@@ -1453,7 +1432,7 @@ static int __vfs_setlease(struct file *filp, long arg, struct file_lock **lease)
* @lease: file_lock to use
*
* Call this to establish a lease on the file.
- * The (*lease)->fl_lmops->fl_break operation must be set; if not,
+ * The (*lease)->fl_lmops->lm_break operation must be set; if not,
* break_lease will oops!
*
* This will call the filesystem's setlease file method, if
@@ -1751,10 +1730,10 @@ out:
* To avoid blocking kernel daemons, such as lockd, that need to acquire POSIX
* locks, the ->lock() interface may return asynchronously, before the lock has
* been granted or denied by the underlying filesystem, if (and only if)
- * fl_grant is set. Callers expecting ->lock() to return asynchronously
+ * lm_grant is set. Callers expecting ->lock() to return asynchronously
* will only use F_SETLK, not F_SETLKW; they will set FL_SLEEP if (and only if)
* the request is for a blocking lock. When ->lock() does return asynchronously,
- * it must return FILE_LOCK_DEFERRED, and call ->fl_grant() when the lock
+ * it must return FILE_LOCK_DEFERRED, and call ->lm_grant() when the lock
* request completes.
* If the request is for non-blocking lock the file system should return
* FILE_LOCK_DEFERRED then try to get the lock and call the callback routine
@@ -1764,7 +1743,7 @@ out:
* grants a lock so the VFS can find out which locks are locally held and do
* the correct lock cleanup when required.
* The underlying filesystem must not drop the kernel lock or call
- * ->fl_grant() before returning to the caller with a FILE_LOCK_DEFERRED
+ * ->lm_grant() before returning to the caller with a FILE_LOCK_DEFERRED
* return code.
*/
int vfs_lock_file(struct file *filp, unsigned int cmd, struct file_lock *fl, struct file_lock *conf)
@@ -2333,8 +2312,8 @@ EXPORT_SYMBOL(lock_may_write);
static int __init filelock_init(void)
{
filelock_cache = kmem_cache_create("file_lock_cache",
- sizeof(struct file_lock), 0, SLAB_PANIC,
- init_once);
+ sizeof(struct file_lock), 0, SLAB_PANIC, NULL);
+
return 0;
}
diff --git a/fs/namei.c b/fs/namei.c
index b7fad009bbf..f8c69d37379 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -32,6 +32,7 @@
#include <linux/fcntl.h>
#include <linux/device_cgroup.h>
#include <linux/fs_struct.h>
+#include <linux/posix_acl.h>
#include <asm/uaccess.h>
#include "internal.h"
@@ -173,12 +174,62 @@ void putname(const char *name)
EXPORT_SYMBOL(putname);
#endif
+static int check_acl(struct inode *inode, int mask)
+{
+#ifdef CONFIG_FS_POSIX_ACL
+ struct posix_acl *acl;
+
+ /*
+ * Under RCU walk, we cannot even do a "get_cached_acl()",
+ * because that involves locking and getting a refcount on
+ * a cached ACL.
+ *
+ * So the only case we handle during RCU walking is the
+ * case of a cached "no ACL at all", which needs no locks
+ * or refcounts.
+ */
+ if (mask & MAY_NOT_BLOCK) {
+ if (negative_cached_acl(inode, ACL_TYPE_ACCESS))
+ return -EAGAIN;
+ return -ECHILD;
+ }
+
+ acl = get_cached_acl(inode, ACL_TYPE_ACCESS);
+
+ /*
+ * A filesystem can force a ACL callback by just never filling the
+ * ACL cache. But normally you'd fill the cache either at inode
+ * instantiation time, or on the first ->get_acl call.
+ *
+ * If the filesystem doesn't have a get_acl() function at all, we'll
+ * just create the negative cache entry.
+ */
+ if (acl == ACL_NOT_CACHED) {
+ if (inode->i_op->get_acl) {
+ acl = inode->i_op->get_acl(inode, ACL_TYPE_ACCESS);
+ if (IS_ERR(acl))
+ return PTR_ERR(acl);
+ } else {
+ set_cached_acl(inode, ACL_TYPE_ACCESS, NULL);
+ return -EAGAIN;
+ }
+ }
+
+ if (acl) {
+ int error = posix_acl_permission(inode, acl, mask);
+ posix_acl_release(acl);
+ return error;
+ }
+#endif
+
+ return -EAGAIN;
+}
+
/*
* This does basic POSIX ACL permission checking
*/
static int acl_permission_check(struct inode *inode, int mask)
{
- int (*check_acl)(struct inode *inode, int mask);
unsigned int mode = inode->i_mode;
mask &= MAY_READ | MAY_WRITE | MAY_EXEC | MAY_NOT_BLOCK;
@@ -186,11 +237,10 @@ static int acl_permission_check(struct inode *inode, int mask)
if (current_user_ns() != inode_userns(inode))
goto other_perms;
- if (current_fsuid() == inode->i_uid)
+ if (likely(current_fsuid() == inode->i_uid))
mode >>= 6;
else {
- check_acl = inode->i_op->check_acl;
- if (IS_POSIXACL(inode) && (mode & S_IRWXG) && check_acl) {
+ if (IS_POSIXACL(inode) && (mode & S_IRWXG)) {
int error = check_acl(inode, mask);
if (error != -EAGAIN)
return error;
diff --git a/fs/namespace.c b/fs/namespace.c
index cda50fe9250..22bfe8273c6 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -2721,6 +2721,25 @@ EXPORT_SYMBOL(put_mnt_ns);
struct vfsmount *kern_mount_data(struct file_system_type *type, void *data)
{
- return vfs_kern_mount(type, MS_KERNMOUNT, type->name, data);
+ struct vfsmount *mnt;
+ mnt = vfs_kern_mount(type, MS_KERNMOUNT, type->name, data);
+ if (!IS_ERR(mnt)) {
+ /*
+ * it is a longterm mount, don't release mnt until
+ * we unmount before file sys is unregistered
+ */
+ mnt_make_longterm(mnt);
+ }
+ return mnt;
}
EXPORT_SYMBOL_GPL(kern_mount_data);
+
+void kern_unmount(struct vfsmount *mnt)
+{
+ /* release long term mount so mount point can be released */
+ if (!IS_ERR_OR_NULL(mnt)) {
+ mnt_make_shortterm(mnt);
+ mntput(mnt);
+ }
+}
+EXPORT_SYMBOL(kern_unmount);
diff --git a/fs/nfs/cache_lib.h b/fs/nfs/cache_lib.h
index 76f856e284e..7cf6cafcc00 100644
--- a/fs/nfs/cache_lib.h
+++ b/fs/nfs/cache_lib.h
@@ -6,7 +6,7 @@
#include <linux/completion.h>
#include <linux/sunrpc/cache.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
/*
* Deferred request handling
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index b35d25b98da..1940f1a56a5 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -53,7 +53,7 @@
#include <asm/system.h>
#include <asm/uaccess.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include "internal.h"
#include "iostat.h"
diff --git a/fs/nfs/idmap.c b/fs/nfs/idmap.c
index 79664a1025a..f20801ae0a1 100644
--- a/fs/nfs/idmap.c
+++ b/fs/nfs/idmap.c
@@ -36,6 +36,8 @@
#include <linux/types.h>
#include <linux/string.h>
#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/nfs_idmap.h>
static int nfs_map_string_to_numeric(const char *name, size_t namelen, __u32 *res)
{
@@ -59,12 +61,10 @@ static int nfs_map_numeric_to_string(__u32 id, char *buf, size_t buflen)
#ifdef CONFIG_NFS_USE_NEW_IDMAPPER
-#include <linux/slab.h>
#include <linux/cred.h>
#include <linux/sunrpc/sched.h>
#include <linux/nfs4.h>
#include <linux/nfs_fs_sb.h>
-#include <linux/nfs_idmap.h>
#include <linux/keyctl.h>
#include <linux/key-type.h>
#include <linux/rcupdate.h>
@@ -284,18 +284,15 @@ int nfs_map_gid_to_group(const struct nfs_server *server, __u32 gid, char *buf,
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/init.h>
-#include <linux/slab.h>
#include <linux/socket.h>
#include <linux/in.h>
#include <linux/sched.h>
-
#include <linux/sunrpc/clnt.h>
#include <linux/workqueue.h>
#include <linux/sunrpc/rpc_pipe_fs.h>
#include <linux/nfs_fs.h>
-#include <linux/nfs_idmap.h>
#include "nfs4_fs.h"
#define IDMAP_HASH_SZ 128
diff --git a/fs/nfs/nfs3acl.c b/fs/nfs/nfs3acl.c
index 27434277165..e49e73107e6 100644
--- a/fs/nfs/nfs3acl.c
+++ b/fs/nfs/nfs3acl.c
@@ -427,16 +427,12 @@ int nfs3_proc_set_default_acl(struct inode *dir, struct inode *inode,
}
if (!dfacl)
return 0;
- acl = posix_acl_clone(dfacl, GFP_KERNEL);
- error = -ENOMEM;
- if (!acl)
- goto out_release_dfacl;
- error = posix_acl_create_masq(acl, &mode);
+ acl = posix_acl_dup(dfacl);
+ error = posix_acl_create(&acl, GFP_KERNEL, &mode);
if (error < 0)
- goto out_release_acl;
+ goto out_release_dfacl;
error = nfs3_proc_setacls(inode, acl, S_ISDIR(inode->i_mode) ?
dfacl : NULL);
-out_release_acl:
posix_acl_release(acl);
out_release_dfacl:
posix_acl_release(dfacl);
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 08579312c57..00e37501fa3 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -1566,8 +1566,7 @@ int nfs_write_inode(struct inode *inode, struct writeback_control *wbc)
int status;
bool sync = true;
- if (wbc->sync_mode == WB_SYNC_NONE || wbc->nonblocking ||
- wbc->for_background)
+ if (wbc->sync_mode == WB_SYNC_NONE)
sync = false;
status = pnfs_layoutcommit_inode(inode, sync);
diff --git a/fs/nfsctl.c b/fs/nfsctl.c
deleted file mode 100644
index 124e8fcb0dd..00000000000
--- a/fs/nfsctl.c
+++ /dev/null
@@ -1,100 +0,0 @@
-/*
- * fs/nfsctl.c
- *
- * This should eventually move to userland.
- *
- */
-#include <linux/types.h>
-#include <linux/file.h>
-#include <linux/fs.h>
-#include <linux/nfsd/syscall.h>
-#include <linux/cred.h>
-#include <linux/sched.h>
-#include <linux/linkage.h>
-#include <linux/namei.h>
-#include <linux/mount.h>
-#include <linux/syscalls.h>
-#include <asm/uaccess.h>
-
-/*
- * open a file on nfsd fs
- */
-
-static struct file *do_open(char *name, int flags)
-{
- struct vfsmount *mnt;
- struct file *file;
-
- mnt = do_kern_mount("nfsd", 0, "nfsd", NULL);
- if (IS_ERR(mnt))
- return (struct file *)mnt;
-
- file = file_open_root(mnt->mnt_root, mnt, name, flags);
-
- mntput(mnt); /* drop do_kern_mount reference */
- return file;
-}
-
-static struct {
- char *name; int wsize; int rsize;
-} map[] = {
- [NFSCTL_SVC] = {
- .name = ".svc",
- .wsize = sizeof(struct nfsctl_svc)
- },
- [NFSCTL_ADDCLIENT] = {
- .name = ".add",
- .wsize = sizeof(struct nfsctl_client)
- },
- [NFSCTL_DELCLIENT] = {
- .name = ".del",
- .wsize = sizeof(struct nfsctl_client)
- },
- [NFSCTL_EXPORT] = {
- .name = ".export",
- .wsize = sizeof(struct nfsctl_export)
- },
- [NFSCTL_UNEXPORT] = {
- .name = ".unexport",
- .wsize = sizeof(struct nfsctl_export)
- },
- [NFSCTL_GETFD] = {
- .name = ".getfd",
- .wsize = sizeof(struct nfsctl_fdparm),
- .rsize = NFS_FHSIZE
- },
- [NFSCTL_GETFS] = {
- .name = ".getfs",
- .wsize = sizeof(struct nfsctl_fsparm),
- .rsize = sizeof(struct knfsd_fh)
- },
-};
-
-SYSCALL_DEFINE3(nfsservctl, int, cmd, struct nfsctl_arg __user *, arg,
- void __user *, res)
-{
- struct file *file;
- void __user *p = &arg->u;
- int version;
- int err;
-
- if (copy_from_user(&version, &arg->ca_version, sizeof(int)))
- return -EFAULT;
-
- if (version != NFSCTL_VERSION)
- return -EINVAL;
-
- if (cmd < 0 || cmd >= ARRAY_SIZE(map) || !map[cmd].name)
- return -EINVAL;
-
- file = do_open(map[cmd].name, map[cmd].rsize ? O_RDWR : O_WRONLY);
- if (IS_ERR(file))
- return PTR_ERR(file);
- err = file->f_op->write(file, p, map[cmd].wsize, &file->f_pos);
- if (err >= 0 && map[cmd].rsize)
- err = file->f_op->read(file, res, map[cmd].rsize, &file->f_pos);
- if (err >= 0)
- err = 0;
- fput(file);
- return err;
-}
diff --git a/fs/nfsd/Kconfig b/fs/nfsd/Kconfig
index fbb2a5ef581..10e6366608f 100644
--- a/fs/nfsd/Kconfig
+++ b/fs/nfsd/Kconfig
@@ -28,18 +28,6 @@ config NFSD
If unsure, say N.
-config NFSD_DEPRECATED
- bool "Include support for deprecated syscall interface to NFSD"
- depends on NFSD
- default y
- help
- The syscall interface to nfsd was obsoleted in 2.6.0 by a new
- filesystem based interface. The old interface is due for removal
- in 2.6.40. If you wish to remove the interface before then
- say N.
-
- In unsure, say Y.
-
config NFSD_V2_ACL
bool
depends on NFSD
diff --git a/fs/nfsd/cache.h b/fs/nfsd/cache.h
index d892be61016..93cc9d34c45 100644
--- a/fs/nfsd/cache.h
+++ b/fs/nfsd/cache.h
@@ -69,7 +69,7 @@ enum {
int nfsd_reply_cache_init(void);
void nfsd_reply_cache_shutdown(void);
-int nfsd_cache_lookup(struct svc_rqst *, int);
+int nfsd_cache_lookup(struct svc_rqst *);
void nfsd_cache_update(struct svc_rqst *, int, __be32 *);
#ifdef CONFIG_NFSD_V4
diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
index b9566e46219..f4cc1e2bfc5 100644
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -797,58 +797,6 @@ exp_find_key(svc_client *clp, int fsid_type, u32 *fsidv, struct cache_req *reqp)
return ek;
}
-#ifdef CONFIG_NFSD_DEPRECATED
-static int exp_set_key(svc_client *clp, int fsid_type, u32 *fsidv,
- struct svc_export *exp)
-{
- struct svc_expkey key, *ek;
-
- key.ek_client = clp;
- key.ek_fsidtype = fsid_type;
- memcpy(key.ek_fsid, fsidv, key_len(fsid_type));
- key.ek_path = exp->ex_path;
- key.h.expiry_time = NEVER;
- key.h.flags = 0;
-
- ek = svc_expkey_lookup(&key);
- if (ek)
- ek = svc_expkey_update(&key,ek);
- if (ek) {
- cache_put(&ek->h, &svc_expkey_cache);
- return 0;
- }
- return -ENOMEM;
-}
-
-/*
- * Find the client's export entry matching xdev/xino.
- */
-static inline struct svc_expkey *
-exp_get_key(svc_client *clp, dev_t dev, ino_t ino)
-{
- u32 fsidv[3];
-
- if (old_valid_dev(dev)) {
- mk_fsid(FSID_DEV, fsidv, dev, ino, 0, NULL);
- return exp_find_key(clp, FSID_DEV, fsidv, NULL);
- }
- mk_fsid(FSID_ENCODE_DEV, fsidv, dev, ino, 0, NULL);
- return exp_find_key(clp, FSID_ENCODE_DEV, fsidv, NULL);
-}
-
-/*
- * Find the client's export entry matching fsid
- */
-static inline struct svc_expkey *
-exp_get_fsid_key(svc_client *clp, int fsid)
-{
- u32 fsidv[2];
-
- mk_fsid(FSID_NUM, fsidv, 0, 0, fsid, NULL);
-
- return exp_find_key(clp, FSID_NUM, fsidv, NULL);
-}
-#endif
static svc_export *exp_get_by_name(svc_client *clp, const struct path *path,
struct cache_req *reqp)
@@ -890,275 +838,7 @@ static struct svc_export *exp_parent(svc_client *clp, struct path *path)
return exp;
}
-#ifdef CONFIG_NFSD_DEPRECATED
-/*
- * Hashtable locking. Write locks are placed only by user processes
- * wanting to modify export information.
- * Write locking only done in this file. Read locking
- * needed externally.
- */
-
-static DECLARE_RWSEM(hash_sem);
-
-void
-exp_readlock(void)
-{
- down_read(&hash_sem);
-}
-
-static inline void
-exp_writelock(void)
-{
- down_write(&hash_sem);
-}
-
-void
-exp_readunlock(void)
-{
- up_read(&hash_sem);
-}
-
-static inline void
-exp_writeunlock(void)
-{
- up_write(&hash_sem);
-}
-#else
-
-/* hash_sem not needed once deprecated interface is removed */
-void exp_readlock(void) {}
-static inline void exp_writelock(void){}
-void exp_readunlock(void) {}
-static inline void exp_writeunlock(void){}
-
-#endif
-
-#ifdef CONFIG_NFSD_DEPRECATED
-static void exp_do_unexport(svc_export *unexp);
-static int exp_verify_string(char *cp, int max);
-
-static void exp_fsid_unhash(struct svc_export *exp)
-{
- struct svc_expkey *ek;
-
- if ((exp->ex_flags & NFSEXP_FSID) == 0)
- return;
-
- ek = exp_get_fsid_key(exp->ex_client, exp->ex_fsid);
- if (!IS_ERR(ek)) {
- sunrpc_invalidate(&ek->h, &svc_expkey_cache);
- cache_put(&ek->h, &svc_expkey_cache);
- }
-}
-
-static int exp_fsid_hash(svc_client *clp, struct svc_export *exp)
-{
- u32 fsid[2];
-
- if ((exp->ex_flags & NFSEXP_FSID) == 0)
- return 0;
-
- mk_fsid(FSID_NUM, fsid, 0, 0, exp->ex_fsid, NULL);
- return exp_set_key(clp, FSID_NUM, fsid, exp);
-}
-
-static int exp_hash(struct auth_domain *clp, struct svc_export *exp)
-{
- u32 fsid[2];
- struct inode *inode = exp->ex_path.dentry->d_inode;
- dev_t dev = inode->i_sb->s_dev;
-
- if (old_valid_dev(dev)) {
- mk_fsid(FSID_DEV, fsid, dev, inode->i_ino, 0, NULL);
- return exp_set_key(clp, FSID_DEV, fsid, exp);
- }
- mk_fsid(FSID_ENCODE_DEV, fsid, dev, inode->i_ino, 0, NULL);
- return exp_set_key(clp, FSID_ENCODE_DEV, fsid, exp);
-}
-static void exp_unhash(struct svc_export *exp)
-{
- struct svc_expkey *ek;
- struct inode *inode = exp->ex_path.dentry->d_inode;
-
- ek = exp_get_key(exp->ex_client, inode->i_sb->s_dev, inode->i_ino);
- if (!IS_ERR(ek)) {
- sunrpc_invalidate(&ek->h, &svc_expkey_cache);
- cache_put(&ek->h, &svc_expkey_cache);
- }
-}
-
-/*
- * Export a file system.
- */
-int
-exp_export(struct nfsctl_export *nxp)
-{
- svc_client *clp;
- struct svc_export *exp = NULL;
- struct svc_export new;
- struct svc_expkey *fsid_key = NULL;
- struct path path;
- int err;
-
- /* Consistency check */
- err = -EINVAL;
- if (!exp_verify_string(nxp->ex_path, NFS_MAXPATHLEN) ||
- !exp_verify_string(nxp->ex_client, NFSCLNT_IDMAX))
- goto out;
-
- dprintk("exp_export called for %s:%s (%x/%ld fl %x).\n",
- nxp->ex_client, nxp->ex_path,
- (unsigned)nxp->ex_dev, (long)nxp->ex_ino,
- nxp->ex_flags);
-
- /* Try to lock the export table for update */
- exp_writelock();
-
- /* Look up client info */
- if (!(clp = auth_domain_find(nxp->ex_client)))
- goto out_unlock;
-
-
- /* Look up the dentry */
- err = kern_path(nxp->ex_path, 0, &path);
- if (err)
- goto out_put_clp;
- err = -EINVAL;
-
- exp = exp_get_by_name(clp, &path, NULL);
-
- memset(&new, 0, sizeof(new));
-
- /* must make sure there won't be an ex_fsid clash */
- if ((nxp->ex_flags & NFSEXP_FSID) &&
- (!IS_ERR(fsid_key = exp_get_fsid_key(clp, nxp->ex_dev))) &&
- fsid_key->ek_path.mnt &&
- (fsid_key->ek_path.mnt != path.mnt ||
- fsid_key->ek_path.dentry != path.dentry))
- goto finish;
-
- if (!IS_ERR(exp)) {
- /* just a flags/id/fsid update */
-
- exp_fsid_unhash(exp);
- exp->ex_flags = nxp->ex_flags;
- exp->ex_anon_uid = nxp->ex_anon_uid;
- exp->ex_anon_gid = nxp->ex_anon_gid;
- exp->ex_fsid = nxp->ex_dev;
-
- err = exp_fsid_hash(clp, exp);
- goto finish;
- }
-
- err = check_export(path.dentry->d_inode, &nxp->ex_flags, NULL);
- if (err) goto finish;
-
- err = -ENOMEM;
-
- dprintk("nfsd: creating export entry %p for client %p\n", exp, clp);
-
- new.h.expiry_time = NEVER;
- new.h.flags = 0;
- new.ex_pathname = kstrdup(nxp->ex_path, GFP_KERNEL);
- if (!new.ex_pathname)
- goto finish;
- new.ex_client = clp;
- new.ex_path = path;
- new.ex_flags = nxp->ex_flags;
- new.ex_anon_uid = nxp->ex_anon_uid;
- new.ex_anon_gid = nxp->ex_anon_gid;
- new.ex_fsid = nxp->ex_dev;
-
- exp = svc_export_lookup(&new);
- if (exp)
- exp = svc_export_update(&new, exp);
-
- if (!exp)
- goto finish;
-
- if (exp_hash(clp, exp) ||
- exp_fsid_hash(clp, exp)) {
- /* failed to create at least one index */
- exp_do_unexport(exp);
- cache_flush();
- } else
- err = 0;
-finish:
- kfree(new.ex_pathname);
- if (!IS_ERR_OR_NULL(exp))
- exp_put(exp);
- if (!IS_ERR_OR_NULL(fsid_key))
- cache_put(&fsid_key->h, &svc_expkey_cache);
- path_put(&path);
-out_put_clp:
- auth_domain_put(clp);
-out_unlock:
- exp_writeunlock();
-out:
- return err;
-}
-
-/*
- * Unexport a file system. The export entry has already
- * been removed from the client's list of exported fs's.
- */
-static void
-exp_do_unexport(svc_export *unexp)
-{
- sunrpc_invalidate(&unexp->h, &svc_export_cache);
- exp_unhash(unexp);
- exp_fsid_unhash(unexp);
-}
-
-
-/*
- * unexport syscall.
- */
-int
-exp_unexport(struct nfsctl_export *nxp)
-{
- struct auth_domain *dom;
- svc_export *exp;
- struct path path;
- int err;
-
- /* Consistency check */
- if (!exp_verify_string(nxp->ex_path, NFS_MAXPATHLEN) ||
- !exp_verify_string(nxp->ex_client, NFSCLNT_IDMAX))
- return -EINVAL;
-
- exp_writelock();
-
- err = -EINVAL;
- dom = auth_domain_find(nxp->ex_client);
- if (!dom) {
- dprintk("nfsd: unexport couldn't find %s\n", nxp->ex_client);
- goto out_unlock;
- }
-
- err = kern_path(nxp->ex_path, 0, &path);
- if (err)
- goto out_domain;
-
- err = -EINVAL;
- exp = exp_get_by_name(dom, &path, NULL);
- path_put(&path);
- if (IS_ERR(exp))
- goto out_domain;
-
- exp_do_unexport(exp);
- exp_put(exp);
- err = 0;
-
-out_domain:
- auth_domain_put(dom);
- cache_flush();
-out_unlock:
- exp_writeunlock();
- return err;
-}
-#endif /* CONFIG_NFSD_DEPRECATED */
/*
* Obtain the root fh on behalf of a client.
@@ -1367,7 +1047,6 @@ static void *e_start(struct seq_file *m, loff_t *pos)
unsigned hash, export;
struct cache_head *ch;
- exp_readlock();
read_lock(&svc_export_cache.hash_lock);
if (!n--)
return SEQ_START_TOKEN;
@@ -1418,7 +1097,6 @@ static void e_stop(struct seq_file *m, void *p)
__releases(svc_export_cache.hash_lock)
{
read_unlock(&svc_export_cache.hash_lock);
- exp_readunlock();
}
static struct flags {
@@ -1550,97 +1228,6 @@ const struct seq_operations nfs_exports_op = {
.show = e_show,
};
-#ifdef CONFIG_NFSD_DEPRECATED
-/*
- * Add or modify a client.
- * Change requests may involve the list of host addresses. The list of
- * exports and possibly existing uid maps are left untouched.
- */
-int
-exp_addclient(struct nfsctl_client *ncp)
-{
- struct auth_domain *dom;
- int i, err;
- struct in6_addr addr6;
-
- /* First, consistency check. */
- err = -EINVAL;
- if (! exp_verify_string(ncp->cl_ident, NFSCLNT_IDMAX))
- goto out;
- if (ncp->cl_naddr > NFSCLNT_ADDRMAX)
- goto out;
-
- /* Lock the hashtable */
- exp_writelock();
-
- dom = unix_domain_find(ncp->cl_ident);
-
- err = -ENOMEM;
- if (!dom)
- goto out_unlock;
-
- /* Insert client into hashtable. */
- for (i = 0; i < ncp->cl_naddr; i++) {
- ipv6_addr_set_v4mapped(ncp->cl_addrlist[i].s_addr, &addr6);
- auth_unix_add_addr(&init_net, &addr6, dom);
- }
- auth_unix_forget_old(dom);
- auth_domain_put(dom);
-
- err = 0;
-
-out_unlock:
- exp_writeunlock();
-out:
- return err;
-}
-
-/*
- * Delete a client given an identifier.
- */
-int
-exp_delclient(struct nfsctl_client *ncp)
-{
- int err;
- struct auth_domain *dom;
-
- err = -EINVAL;
- if (!exp_verify_string(ncp->cl_ident, NFSCLNT_IDMAX))
- goto out;
-
- /* Lock the hashtable */
- exp_writelock();
-
- dom = auth_domain_find(ncp->cl_ident);
- /* just make sure that no addresses work
- * and that it will expire soon
- */
- if (dom) {
- err = auth_unix_forget_old(dom);
- auth_domain_put(dom);
- }
-
- exp_writeunlock();
-out:
- return err;
-}
-
-/*
- * Verify that string is non-empty and does not exceed max length.
- */
-static int
-exp_verify_string(char *cp, int max)
-{
- int i;
-
- for (i = 0; i < max; i++)
- if (!cp[i])
- return i;
- cp[i] = 0;
- printk(KERN_NOTICE "nfsd: couldn't validate string %s\n", cp);
- return 0;
-}
-#endif /* CONFIG_NFSD_DEPRECATED */
/*
* Initialize the exports module.
@@ -1667,10 +1254,8 @@ nfsd_export_init(void)
void
nfsd_export_flush(void)
{
- exp_writelock();
cache_purge(&svc_expkey_cache);
cache_purge(&svc_export_cache);
- exp_writeunlock();
}
/*
@@ -1682,12 +1267,9 @@ nfsd_export_shutdown(void)
dprintk("nfsd: shutting down export module.\n");
- exp_writelock();
-
cache_unregister(&svc_expkey_cache);
cache_unregister(&svc_export_cache);
svcauth_unix_purge();
- exp_writeunlock();
dprintk("nfsd: export shutdown complete.\n");
}
diff --git a/fs/nfsd/lockd.c b/fs/nfsd/lockd.c
index 7c831a2731f..77e7a5cca88 100644
--- a/fs/nfsd/lockd.c
+++ b/fs/nfsd/lockd.c
@@ -35,10 +35,8 @@ nlm_fopen(struct svc_rqst *rqstp, struct nfs_fh *f, struct file **filp)
memcpy((char*)&fh.fh_handle.fh_base, f->data, f->size);
fh.fh_export = NULL;
- exp_readlock();
nfserr = nfsd_open(rqstp, &fh, S_IFREG, NFSD_MAY_LOCK, filp);
fh_put(&fh);
- exp_readunlock();
/* We return nlm error codes as nlm doesn't know
* about nfsd, but nfsd does know about nlm..
*/
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index 3a6dbd70b34..e8077766661 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -291,6 +291,15 @@ nfsd4_open(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
if (open->op_create && open->op_claim_type != NFS4_OPEN_CLAIM_NULL)
return nfserr_inval;
+ /*
+ * RFC5661 18.51.3
+ * Before RECLAIM_COMPLETE done, server should deny new lock
+ */
+ if (nfsd4_has_session(cstate) &&
+ !cstate->session->se_client->cl_firststate &&
+ open->op_claim_type != NFS4_OPEN_CLAIM_PREVIOUS)
+ return nfserr_grace;
+
if (nfsd4_has_session(cstate))
copy_clientid(&open->op_clientid, cstate->session);
@@ -998,6 +1007,15 @@ struct nfsd4_operation {
nfsd4op_func op_func;
u32 op_flags;
char *op_name;
+ /*
+ * We use the DRC for compounds containing non-idempotent
+ * operations, *except* those that are 4.1-specific (since
+ * sessions provide their own EOS), and except for stateful
+ * operations other than setclientid and setclientid_confirm
+ * (since sequence numbers provide EOS for open, lock, etc in
+ * the v4.0 case).
+ */
+ bool op_cacheresult;
};
static struct nfsd4_operation nfsd4_ops[];
@@ -1042,6 +1060,11 @@ static inline struct nfsd4_operation *OPDESC(struct nfsd4_op *op)
return &nfsd4_ops[op->opnum];
}
+bool nfsd4_cache_this_op(struct nfsd4_op *op)
+{
+ return OPDESC(op)->op_cacheresult;
+}
+
static bool need_wrongsec_check(struct svc_rqst *rqstp)
{
struct nfsd4_compoundres *resp = rqstp->rq_resp;
@@ -1209,7 +1232,6 @@ encode_op:
fh_put(&resp->cstate.save_fh);
BUG_ON(resp->cstate.replay_owner);
out:
- nfsd4_release_compoundargs(args);
/* Reset deferral mechanism for RPC deferrals */
rqstp->rq_usedeferral = 1;
dprintk("nfsv4 compound returned %d\n", ntohl(status));
@@ -1232,6 +1254,7 @@ static struct nfsd4_operation nfsd4_ops[] = {
[OP_CREATE] = {
.op_func = (nfsd4op_func)nfsd4_create,
.op_name = "OP_CREATE",
+ .op_cacheresult = true,
},
[OP_DELEGRETURN] = {
.op_func = (nfsd4op_func)nfsd4_delegreturn,
@@ -1249,6 +1272,7 @@ static struct nfsd4_operation nfsd4_ops[] = {
[OP_LINK] = {
.op_func = (nfsd4op_func)nfsd4_link,
.op_name = "OP_LINK",
+ .op_cacheresult = true,
},
[OP_LOCK] = {
.op_func = (nfsd4op_func)nfsd4_lock,
@@ -1322,10 +1346,12 @@ static struct nfsd4_operation nfsd4_ops[] = {
[OP_REMOVE] = {
.op_func = (nfsd4op_func)nfsd4_remove,
.op_name = "OP_REMOVE",
+ .op_cacheresult = true,
},
[OP_RENAME] = {
.op_name = "OP_RENAME",
.op_func = (nfsd4op_func)nfsd4_rename,
+ .op_cacheresult = true,
},
[OP_RENEW] = {
.op_func = (nfsd4op_func)nfsd4_renew,
@@ -1351,16 +1377,19 @@ static struct nfsd4_operation nfsd4_ops[] = {
[OP_SETATTR] = {
.op_func = (nfsd4op_func)nfsd4_setattr,
.op_name = "OP_SETATTR",
+ .op_cacheresult = true,
},
[OP_SETCLIENTID] = {
.op_func = (nfsd4op_func)nfsd4_setclientid,
.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS,
.op_name = "OP_SETCLIENTID",
+ .op_cacheresult = true,
},
[OP_SETCLIENTID_CONFIRM] = {
.op_func = (nfsd4op_func)nfsd4_setclientid_confirm,
.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_ON_ABSENT_FS,
.op_name = "OP_SETCLIENTID_CONFIRM",
+ .op_cacheresult = true,
},
[OP_VERIFY] = {
.op_func = (nfsd4op_func)nfsd4_verify,
@@ -1369,6 +1398,7 @@ static struct nfsd4_operation nfsd4_ops[] = {
[OP_WRITE] = {
.op_func = (nfsd4op_func)nfsd4_write,
.op_name = "OP_WRITE",
+ .op_cacheresult = true,
},
[OP_RELEASE_LOCKOWNER] = {
.op_func = (nfsd4op_func)nfsd4_release_lockowner,
@@ -1402,6 +1432,11 @@ static struct nfsd4_operation nfsd4_ops[] = {
.op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP,
.op_name = "OP_SEQUENCE",
},
+ [OP_DESTROY_CLIENTID] = {
+ .op_func = NULL,
+ .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP,
+ .op_name = "OP_DESTROY_CLIENTID",
+ },
[OP_RECLAIM_COMPLETE] = {
.op_func = (nfsd4op_func)nfsd4_reclaim_complete,
.op_flags = ALLOWED_WITHOUT_FH,
@@ -1412,6 +1447,16 @@ static struct nfsd4_operation nfsd4_ops[] = {
.op_flags = OP_HANDLES_WRONGSEC,
.op_name = "OP_SECINFO_NO_NAME",
},
+ [OP_TEST_STATEID] = {
+ .op_func = (nfsd4op_func)nfsd4_test_stateid,
+ .op_flags = ALLOWED_WITHOUT_FH,
+ .op_name = "OP_TEST_STATEID",
+ },
+ [OP_FREE_STATEID] = {
+ .op_func = (nfsd4op_func)nfsd4_free_stateid,
+ .op_flags = ALLOWED_WITHOUT_FH,
+ .op_name = "OP_FREE_STATEID",
+ },
};
static const char *nfsd4_op_name(unsigned opnum)
@@ -1424,16 +1469,6 @@ static const char *nfsd4_op_name(unsigned opnum)
#define nfsd4_voidres nfsd4_voidargs
struct nfsd4_voidargs { int dummy; };
-/*
- * TODO: At the present time, the NFSv4 server does not do XID caching
- * of requests. Implementing XID caching would not be a serious problem,
- * although it would require a mild change in interfaces since one
- * doesn't know whether an NFSv4 request is idempotent until after the
- * XDR decode. However, XID caching totally confuses pynfs (Peter
- * Astrand's regression testsuite for NFSv4 servers), which reuses
- * XID's liberally, so I've left it unimplemented until pynfs generates
- * better XID's.
- */
static struct svc_procedure nfsd_procedures4[2] = {
[NFSPROC4_NULL] = {
.pc_func = (svc_procfunc) nfsd4_proc_null,
@@ -1449,6 +1484,7 @@ static struct svc_procedure nfsd_procedures4[2] = {
.pc_encode = (kxdrproc_t) nfs4svc_encode_compoundres,
.pc_argsize = sizeof(struct nfsd4_compoundargs),
.pc_ressize = sizeof(struct nfsd4_compoundres),
+ .pc_release = nfsd4_release_compoundargs,
.pc_cachetype = RC_NOCACHE,
.pc_xdrressize = NFSD_BUFSIZE/4,
},
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index e98f3c2e949..3787ec11740 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -37,6 +37,7 @@
#include <linux/slab.h>
#include <linux/namei.h>
#include <linux/swap.h>
+#include <linux/pagemap.h>
#include <linux/sunrpc/svcauth_gss.h>
#include <linux/sunrpc/clnt.h>
#include "xdr4.h"
@@ -60,9 +61,12 @@ static u64 current_sessionid = 1;
/* forward declarations */
static struct nfs4_stateid * find_stateid(stateid_t *stid, int flags);
+static struct nfs4_stateid * search_for_stateid(stateid_t *stid);
+static struct nfs4_delegation * search_for_delegation(stateid_t *stid);
static struct nfs4_delegation * find_delegation_stateid(struct inode *ino, stateid_t *stid);
static char user_recovery_dirname[PATH_MAX] = "/var/lib/nfs/v4recovery";
static void nfs4_set_recdir(char *recdir);
+static int check_for_locks(struct nfs4_file *filp, struct nfs4_stateowner *lowner);
/* Locking: */
@@ -381,14 +385,6 @@ static int nfs4_access_to_omode(u32 access)
BUG();
}
-static int nfs4_access_bmap_to_omode(struct nfs4_stateid *stp)
-{
- unsigned int access;
-
- set_access(&access, stp->st_access_bmap);
- return nfs4_access_to_omode(access);
-}
-
static void unhash_generic_stateid(struct nfs4_stateid *stp)
{
list_del(&stp->st_hash);
@@ -398,11 +394,14 @@ static void unhash_generic_stateid(struct nfs4_stateid *stp)
static void free_generic_stateid(struct nfs4_stateid *stp)
{
- int oflag;
+ int i;
if (stp->st_access_bmap) {
- oflag = nfs4_access_bmap_to_omode(stp);
- nfs4_file_put_access(stp->st_file, oflag);
+ for (i = 1; i < 4; i++) {
+ if (test_bit(i, &stp->st_access_bmap))
+ nfs4_file_put_access(stp->st_file,
+ nfs4_access_to_omode(i));
+ }
}
put_nfs4_file(stp->st_file);
kmem_cache_free(stateid_slab, stp);
@@ -1507,6 +1506,29 @@ nfsd4_replay_create_session(struct nfsd4_create_session *cr_ses,
return slot->sl_status;
}
+#define NFSD_MIN_REQ_HDR_SEQ_SZ ((\
+ 2 * 2 + /* credential,verifier: AUTH_NULL, length 0 */ \
+ 1 + /* MIN tag is length with zero, only length */ \
+ 3 + /* version, opcount, opcode */ \
+ XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
+ /* seqid, slotID, slotID, cache */ \
+ 4 ) * sizeof(__be32))
+
+#define NFSD_MIN_RESP_HDR_SEQ_SZ ((\
+ 2 + /* verifier: AUTH_NULL, length 0 */\
+ 1 + /* status */ \
+ 1 + /* MIN tag is length with zero, only length */ \
+ 3 + /* opcount, opcode, opstatus*/ \
+ XDR_QUADLEN(NFS4_MAX_SESSIONID_LEN) + \
+ /* seqid, slotID, slotID, slotID, status */ \
+ 5 ) * sizeof(__be32))
+
+static __be32 check_forechannel_attrs(struct nfsd4_channel_attrs fchannel)
+{
+ return fchannel.maxreq_sz < NFSD_MIN_REQ_HDR_SEQ_SZ
+ || fchannel.maxresp_sz < NFSD_MIN_RESP_HDR_SEQ_SZ;
+}
+
__be32
nfsd4_create_session(struct svc_rqst *rqstp,
struct nfsd4_compound_state *cstate,
@@ -1575,6 +1597,10 @@ nfsd4_create_session(struct svc_rqst *rqstp,
cr_ses->flags &= ~SESSION4_PERSIST;
cr_ses->flags &= ~SESSION4_RDMA;
+ status = nfserr_toosmall;
+ if (check_forechannel_attrs(cr_ses->fore_channel))
+ goto out;
+
status = nfserr_jukebox;
new = alloc_init_session(rqstp, conf, cr_ses);
if (!new)
@@ -1736,6 +1762,14 @@ static bool nfsd4_session_too_many_ops(struct svc_rqst *rqstp, struct nfsd4_sess
return args->opcnt > session->se_fchannel.maxops;
}
+static bool nfsd4_request_too_big(struct svc_rqst *rqstp,
+ struct nfsd4_session *session)
+{
+ struct xdr_buf *xb = &rqstp->rq_arg;
+
+ return xb->len > session->se_fchannel.maxreq_sz;
+}
+
__be32
nfsd4_sequence(struct svc_rqst *rqstp,
struct nfsd4_compound_state *cstate,
@@ -1768,6 +1802,10 @@ nfsd4_sequence(struct svc_rqst *rqstp,
if (nfsd4_session_too_many_ops(rqstp, session))
goto out;
+ status = nfserr_req_too_big;
+ if (nfsd4_request_too_big(rqstp, session))
+ goto out;
+
status = nfserr_badslot;
if (seq->slotid >= session->se_fchannel.maxreqs)
goto out;
@@ -2337,15 +2375,6 @@ out:
return ret;
}
-static inline void
-nfs4_file_downgrade(struct nfs4_file *fp, unsigned int share_access)
-{
- if (share_access & NFS4_SHARE_ACCESS_WRITE)
- nfs4_file_put_access(fp, O_WRONLY);
- if (share_access & NFS4_SHARE_ACCESS_READ)
- nfs4_file_put_access(fp, O_RDONLY);
-}
-
static void nfsd_break_one_deleg(struct nfs4_delegation *dp)
{
/* We're assuming the state code never drops its reference
@@ -2396,8 +2425,8 @@ int nfsd_change_deleg_cb(struct file_lock **onlist, int arg)
}
static const struct lock_manager_operations nfsd_lease_mng_ops = {
- .fl_break = nfsd_break_deleg_cb,
- .fl_change = nfsd_change_deleg_cb,
+ .lm_break = nfsd_break_deleg_cb,
+ .lm_change = nfsd_change_deleg_cb,
};
@@ -2556,12 +2585,18 @@ static inline int nfs4_access_to_access(u32 nfs4_access)
return flags;
}
-static __be32 nfs4_get_vfs_file(struct svc_rqst *rqstp, struct nfs4_file
-*fp, struct svc_fh *cur_fh, u32 nfs4_access)
+static __be32 nfs4_get_vfs_file(struct svc_rqst *rqstp, struct nfs4_file *fp,
+ struct svc_fh *cur_fh, struct nfsd4_open *open)
{
__be32 status;
- int oflag = nfs4_access_to_omode(nfs4_access);
- int access = nfs4_access_to_access(nfs4_access);
+ int oflag = nfs4_access_to_omode(open->op_share_access);
+ int access = nfs4_access_to_access(open->op_share_access);
+
+ /* CLAIM_DELEGATE_CUR is used in response to a broken lease;
+ * allowing it to break the lease and return EAGAIN leaves the
+ * client unable to make progress in returning the delegation */
+ if (open->op_claim_type == NFS4_OPEN_CLAIM_DELEGATE_CUR)
+ access |= NFSD_MAY_NOT_BREAK_LEASE;
if (!fp->fi_fds[oflag]) {
status = nfsd_open(rqstp, cur_fh, S_IFREG, access,
@@ -2586,7 +2621,7 @@ nfs4_new_open(struct svc_rqst *rqstp, struct nfs4_stateid **stpp,
if (stp == NULL)
return nfserr_resource;
- status = nfs4_get_vfs_file(rqstp, fp, cur_fh, open->op_share_access);
+ status = nfs4_get_vfs_file(rqstp, fp, cur_fh, open);
if (status) {
kmem_cache_free(stateid_slab, stp);
return status;
@@ -2619,14 +2654,14 @@ nfs4_upgrade_open(struct svc_rqst *rqstp, struct nfs4_file *fp, struct svc_fh *c
new_access = !test_bit(op_share_access, &stp->st_access_bmap);
if (new_access) {
- status = nfs4_get_vfs_file(rqstp, fp, cur_fh, op_share_access);
+ status = nfs4_get_vfs_file(rqstp, fp, cur_fh, open);
if (status)
return status;
}
status = nfsd4_truncate(rqstp, cur_fh, open);
if (status) {
if (new_access) {
- int oflag = nfs4_access_to_omode(new_access);
+ int oflag = nfs4_access_to_omode(op_share_access);
nfs4_file_put_access(fp, oflag);
}
return status;
@@ -3137,6 +3172,37 @@ static int is_delegation_stateid(stateid_t *stateid)
return stateid->si_fileid == 0;
}
+static int is_open_stateid(struct nfs4_stateid *stateid)
+{
+ return stateid->st_openstp == NULL;
+}
+
+__be32 nfs4_validate_stateid(stateid_t *stateid, int flags)
+{
+ struct nfs4_stateid *stp = NULL;
+ __be32 status = nfserr_stale_stateid;
+
+ if (STALE_STATEID(stateid))
+ goto out;
+
+ status = nfserr_expired;
+ stp = search_for_stateid(stateid);
+ if (!stp)
+ goto out;
+ status = nfserr_bad_stateid;
+
+ if (!stp->st_stateowner->so_confirmed)
+ goto out;
+
+ status = check_stateid_generation(stateid, &stp->st_stateid, flags);
+ if (status)
+ goto out;
+
+ status = nfs_ok;
+out:
+ return status;
+}
+
/*
* Checks for stateid operations
*/
@@ -3216,6 +3282,81 @@ out:
return status;
}
+static __be32
+nfsd4_free_delegation_stateid(stateid_t *stateid)
+{
+ struct nfs4_delegation *dp = search_for_delegation(stateid);
+ if (dp)
+ return nfserr_locks_held;
+ return nfserr_bad_stateid;
+}
+
+static __be32
+nfsd4_free_lock_stateid(struct nfs4_stateid *stp)
+{
+ if (check_for_locks(stp->st_file, stp->st_stateowner))
+ return nfserr_locks_held;
+ release_lock_stateid(stp);
+ return nfs_ok;
+}
+
+/*
+ * Test if the stateid is valid
+ */
+__be32
+nfsd4_test_stateid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
+ struct nfsd4_test_stateid *test_stateid)
+{
+ test_stateid->ts_has_session = nfsd4_has_session(cstate);
+ return nfs_ok;
+}
+
+/*
+ * Free a state id
+ */
+__be32
+nfsd4_free_stateid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
+ struct nfsd4_free_stateid *free_stateid)
+{
+ stateid_t *stateid = &free_stateid->fr_stateid;
+ struct nfs4_stateid *stp;
+ __be32 ret;
+
+ nfs4_lock_state();
+ if (is_delegation_stateid(stateid)) {
+ ret = nfsd4_free_delegation_stateid(stateid);
+ goto out;
+ }
+
+ stp = search_for_stateid(stateid);
+ if (!stp) {
+ ret = nfserr_bad_stateid;
+ goto out;
+ }
+ if (stateid->si_generation != 0) {
+ if (stateid->si_generation < stp->st_stateid.si_generation) {
+ ret = nfserr_old_stateid;
+ goto out;
+ }
+ if (stateid->si_generation > stp->st_stateid.si_generation) {
+ ret = nfserr_bad_stateid;
+ goto out;
+ }
+ }
+
+ if (is_open_stateid(stp)) {
+ ret = nfserr_locks_held;
+ goto out;
+ } else {
+ ret = nfsd4_free_lock_stateid(stp);
+ goto out;
+ }
+
+out:
+ nfs4_unlock_state();
+ return ret;
+}
+
static inline int
setlkflg (int type)
{
@@ -3384,18 +3525,15 @@ out:
return status;
}
-
-/*
- * unset all bits in union bitmap (bmap) that
- * do not exist in share (from successful OPEN_DOWNGRADE)
- */
-static void
-reset_union_bmap_access(unsigned long access, unsigned long *bmap)
+static inline void nfs4_file_downgrade(struct nfs4_stateid *stp, unsigned int to_access)
{
int i;
+
for (i = 1; i < 4; i++) {
- if ((i & access) != i)
- __clear_bit(i, bmap);
+ if (test_bit(i, &stp->st_access_bmap) && !(i & to_access)) {
+ nfs4_file_put_access(stp->st_file, i);
+ __clear_bit(i, &stp->st_access_bmap);
+ }
}
}
@@ -3416,7 +3554,6 @@ nfsd4_open_downgrade(struct svc_rqst *rqstp,
{
__be32 status;
struct nfs4_stateid *stp;
- unsigned int share_access;
dprintk("NFSD: nfsd4_open_downgrade on file %.*s\n",
(int)cstate->current_fh.fh_dentry->d_name.len,
@@ -3445,10 +3582,8 @@ nfsd4_open_downgrade(struct svc_rqst *rqstp,
stp->st_deny_bmap, od->od_share_deny);
goto out;
}
- set_access(&share_access, stp->st_access_bmap);
- nfs4_file_downgrade(stp->st_file, share_access & ~od->od_share_access);
+ nfs4_file_downgrade(stp, od->od_share_access);
- reset_union_bmap_access(od->od_share_access, &stp->st_access_bmap);
reset_union_bmap_deny(od->od_share_deny, &stp->st_deny_bmap);
update_stateid(&stp->st_stateid);
@@ -3594,6 +3729,14 @@ static struct list_head lock_ownerid_hashtbl[LOCK_HASH_SIZE];
static struct list_head lock_ownerstr_hashtbl[LOCK_HASH_SIZE];
static struct list_head lockstateid_hashtbl[STATEID_HASH_SIZE];
+static int
+same_stateid(stateid_t *id_one, stateid_t *id_two)
+{
+ if (id_one->si_stateownerid != id_two->si_stateownerid)
+ return 0;
+ return id_one->si_fileid == id_two->si_fileid;
+}
+
static struct nfs4_stateid *
find_stateid(stateid_t *stid, int flags)
{
@@ -3623,6 +3766,44 @@ find_stateid(stateid_t *stid, int flags)
return NULL;
}
+static struct nfs4_stateid *
+search_for_stateid(stateid_t *stid)
+{
+ struct nfs4_stateid *local;
+ unsigned int hashval = stateid_hashval(stid->si_stateownerid, stid->si_fileid);
+
+ list_for_each_entry(local, &lockstateid_hashtbl[hashval], st_hash) {
+ if (same_stateid(&local->st_stateid, stid))
+ return local;
+ }
+
+ list_for_each_entry(local, &stateid_hashtbl[hashval], st_hash) {
+ if (same_stateid(&local->st_stateid, stid))
+ return local;
+ }
+ return NULL;
+}
+
+static struct nfs4_delegation *
+search_for_delegation(stateid_t *stid)
+{
+ struct nfs4_file *fp;
+ struct nfs4_delegation *dp;
+ struct list_head *pos;
+ int i;
+
+ for (i = 0; i < FILE_HASH_SIZE; i++) {
+ list_for_each_entry(fp, &file_hashtbl[i], fi_hash) {
+ list_for_each(pos, &fp->fi_delegations) {
+ dp = list_entry(pos, struct nfs4_delegation, dl_perfile);
+ if (same_stateid(&dp->dl_stateid, stid))
+ return dp;
+ }
+ }
+ }
+ return NULL;
+}
+
static struct nfs4_delegation *
find_delegation_stateid(struct inode *ino, stateid_t *stid)
{
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 99018110321..c8bf405d19d 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -44,13 +44,15 @@
#include <linux/namei.h>
#include <linux/statfs.h>
#include <linux/utsname.h>
+#include <linux/pagemap.h>
#include <linux/sunrpc/svcauth_gss.h>
#include "idmap.h"
#include "acl.h"
#include "xdr4.h"
#include "vfs.h"
-
+#include "state.h"
+#include "cache.h"
#define NFSDDBG_FACILITY NFSDDBG_XDR
@@ -131,6 +133,22 @@ xdr_error: \
} \
} while (0)
+static void save_buf(struct nfsd4_compoundargs *argp, struct nfsd4_saved_compoundargs *savep)
+{
+ savep->p = argp->p;
+ savep->end = argp->end;
+ savep->pagelen = argp->pagelen;
+ savep->pagelist = argp->pagelist;
+}
+
+static void restore_buf(struct nfsd4_compoundargs *argp, struct nfsd4_saved_compoundargs *savep)
+{
+ argp->p = savep->p;
+ argp->end = savep->end;
+ argp->pagelen = savep->pagelen;
+ argp->pagelist = savep->pagelist;
+}
+
static __be32 *read_buf(struct nfsd4_compoundargs *argp, u32 nbytes)
{
/* We want more bytes than seem to be available.
@@ -1246,6 +1264,19 @@ nfsd4_decode_destroy_session(struct nfsd4_compoundargs *argp,
}
static __be32
+nfsd4_decode_free_stateid(struct nfsd4_compoundargs *argp,
+ struct nfsd4_free_stateid *free_stateid)
+{
+ DECODE_HEAD;
+
+ READ_BUF(sizeof(stateid_t));
+ READ32(free_stateid->fr_stateid.si_generation);
+ COPYMEM(&free_stateid->fr_stateid.si_opaque, sizeof(stateid_opaque_t));
+
+ DECODE_TAIL;
+}
+
+static __be32
nfsd4_decode_sequence(struct nfsd4_compoundargs *argp,
struct nfsd4_sequence *seq)
{
@@ -1261,6 +1292,40 @@ nfsd4_decode_sequence(struct nfsd4_compoundargs *argp,
DECODE_TAIL;
}
+static __be32
+nfsd4_decode_test_stateid(struct nfsd4_compoundargs *argp, struct nfsd4_test_stateid *test_stateid)
+{
+ unsigned int nbytes;
+ stateid_t si;
+ int i;
+ __be32 *p;
+ __be32 status;
+
+ READ_BUF(4);
+ test_stateid->ts_num_ids = ntohl(*p++);
+
+ nbytes = test_stateid->ts_num_ids * sizeof(stateid_t);
+ if (nbytes > (u32)((char *)argp->end - (char *)argp->p))
+ goto xdr_error;
+
+ test_stateid->ts_saved_args = argp;
+ save_buf(argp, &test_stateid->ts_savedp);
+
+ for (i = 0; i < test_stateid->ts_num_ids; i++) {
+ status = nfsd4_decode_stateid(argp, &si);
+ if (status)
+ return status;
+ }
+
+ status = 0;
+out:
+ return status;
+xdr_error:
+ dprintk("NFSD: xdr error (%s:%d)\n", __FILE__, __LINE__);
+ status = nfserr_bad_xdr;
+ goto out;
+}
+
static __be32 nfsd4_decode_reclaim_complete(struct nfsd4_compoundargs *argp, struct nfsd4_reclaim_complete *rc)
{
DECODE_HEAD;
@@ -1370,7 +1435,7 @@ static nfsd4_dec nfsd41_dec_ops[] = {
[OP_EXCHANGE_ID] = (nfsd4_dec)nfsd4_decode_exchange_id,
[OP_CREATE_SESSION] = (nfsd4_dec)nfsd4_decode_create_session,
[OP_DESTROY_SESSION] = (nfsd4_dec)nfsd4_decode_destroy_session,
- [OP_FREE_STATEID] = (nfsd4_dec)nfsd4_decode_notsupp,
+ [OP_FREE_STATEID] = (nfsd4_dec)nfsd4_decode_free_stateid,
[OP_GET_DIR_DELEGATION] = (nfsd4_dec)nfsd4_decode_notsupp,
[OP_GETDEVICEINFO] = (nfsd4_dec)nfsd4_decode_notsupp,
[OP_GETDEVICELIST] = (nfsd4_dec)nfsd4_decode_notsupp,
@@ -1380,7 +1445,7 @@ static nfsd4_dec nfsd41_dec_ops[] = {
[OP_SECINFO_NO_NAME] = (nfsd4_dec)nfsd4_decode_secinfo_no_name,
[OP_SEQUENCE] = (nfsd4_dec)nfsd4_decode_sequence,
[OP_SET_SSV] = (nfsd4_dec)nfsd4_decode_notsupp,
- [OP_TEST_STATEID] = (nfsd4_dec)nfsd4_decode_notsupp,
+ [OP_TEST_STATEID] = (nfsd4_dec)nfsd4_decode_test_stateid,
[OP_WANT_DELEGATION] = (nfsd4_dec)nfsd4_decode_notsupp,
[OP_DESTROY_CLIENTID] = (nfsd4_dec)nfsd4_decode_notsupp,
[OP_RECLAIM_COMPLETE] = (nfsd4_dec)nfsd4_decode_reclaim_complete,
@@ -1402,6 +1467,7 @@ nfsd4_decode_compound(struct nfsd4_compoundargs *argp)
DECODE_HEAD;
struct nfsd4_op *op;
struct nfsd4_minorversion_ops *ops;
+ bool cachethis = false;
int i;
/*
@@ -1483,7 +1549,16 @@ nfsd4_decode_compound(struct nfsd4_compoundargs *argp)
argp->opcnt = i+1;
break;
}
+ /*
+ * We'll try to cache the result in the DRC if any one
+ * op in the compound wants to be cached:
+ */
+ cachethis |= nfsd4_cache_this_op(op);
}
+ /* Sessions make the DRC unnecessary: */
+ if (argp->minorversion)
+ cachethis = false;
+ argp->rqstp->rq_cachetype = cachethis ? RC_REPLBUFF : RC_NOCACHE;
DECODE_TAIL;
}
@@ -3116,6 +3191,21 @@ nfsd4_encode_destroy_session(struct nfsd4_compoundres *resp, int nfserr,
}
static __be32
+nfsd4_encode_free_stateid(struct nfsd4_compoundres *resp, int nfserr,
+ struct nfsd4_free_stateid *free_stateid)
+{
+ __be32 *p;
+
+ if (nfserr)
+ return nfserr;
+
+ RESERVE_SPACE(4);
+ WRITE32(nfserr);
+ ADJUST_ARGS();
+ return nfserr;
+}
+
+static __be32
nfsd4_encode_sequence(struct nfsd4_compoundres *resp, int nfserr,
struct nfsd4_sequence *seq)
{
@@ -3138,6 +3228,36 @@ nfsd4_encode_sequence(struct nfsd4_compoundres *resp, int nfserr,
return 0;
}
+__be32
+nfsd4_encode_test_stateid(struct nfsd4_compoundres *resp, int nfserr,
+ struct nfsd4_test_stateid *test_stateid)
+{
+ struct nfsd4_compoundargs *argp;
+ stateid_t si;
+ __be32 *p;
+ int i;
+ int valid;
+
+ restore_buf(test_stateid->ts_saved_args, &test_stateid->ts_savedp);
+ argp = test_stateid->ts_saved_args;
+
+ RESERVE_SPACE(4);
+ *p++ = htonl(test_stateid->ts_num_ids);
+ resp->p = p;
+
+ nfs4_lock_state();
+ for (i = 0; i < test_stateid->ts_num_ids; i++) {
+ nfsd4_decode_stateid(argp, &si);
+ valid = nfs4_validate_stateid(&si, test_stateid->ts_has_session);
+ RESERVE_SPACE(4);
+ *p++ = htonl(valid);
+ resp->p = p;
+ }
+ nfs4_unlock_state();
+
+ return nfserr;
+}
+
static __be32
nfsd4_encode_noop(struct nfsd4_compoundres *resp, __be32 nfserr, void *p)
{
@@ -3196,7 +3316,7 @@ static nfsd4_enc nfsd4_enc_ops[] = {
[OP_EXCHANGE_ID] = (nfsd4_enc)nfsd4_encode_exchange_id,
[OP_CREATE_SESSION] = (nfsd4_enc)nfsd4_encode_create_session,
[OP_DESTROY_SESSION] = (nfsd4_enc)nfsd4_encode_destroy_session,
- [OP_FREE_STATEID] = (nfsd4_enc)nfsd4_encode_noop,
+ [OP_FREE_STATEID] = (nfsd4_enc)nfsd4_encode_free_stateid,
[OP_GET_DIR_DELEGATION] = (nfsd4_enc)nfsd4_encode_noop,
[OP_GETDEVICEINFO] = (nfsd4_enc)nfsd4_encode_noop,
[OP_GETDEVICELIST] = (nfsd4_enc)nfsd4_encode_noop,
@@ -3206,7 +3326,7 @@ static nfsd4_enc nfsd4_enc_ops[] = {
[OP_SECINFO_NO_NAME] = (nfsd4_enc)nfsd4_encode_secinfo_no_name,
[OP_SEQUENCE] = (nfsd4_enc)nfsd4_encode_sequence,
[OP_SET_SSV] = (nfsd4_enc)nfsd4_encode_noop,
- [OP_TEST_STATEID] = (nfsd4_enc)nfsd4_encode_noop,
+ [OP_TEST_STATEID] = (nfsd4_enc)nfsd4_encode_test_stateid,
[OP_WANT_DELEGATION] = (nfsd4_enc)nfsd4_encode_noop,
[OP_DESTROY_CLIENTID] = (nfsd4_enc)nfsd4_encode_noop,
[OP_RECLAIM_COMPLETE] = (nfsd4_enc)nfsd4_encode_noop,
@@ -3319,8 +3439,11 @@ nfs4svc_encode_voidres(struct svc_rqst *rqstp, __be32 *p, void *dummy)
return xdr_ressize_check(rqstp, p);
}
-void nfsd4_release_compoundargs(struct nfsd4_compoundargs *args)
+int nfsd4_release_compoundargs(void *rq, __be32 *p, void *resp)
{
+ struct svc_rqst *rqstp = rq;
+ struct nfsd4_compoundargs *args = rqstp->rq_argp;
+
if (args->ops != args->iops) {
kfree(args->ops);
args->ops = args->iops;
@@ -3333,13 +3456,12 @@ void nfsd4_release_compoundargs(struct nfsd4_compoundargs *args)
tb->release(tb->buf);
kfree(tb);
}
+ return 1;
}
int
nfs4svc_decode_compoundargs(struct svc_rqst *rqstp, __be32 *p, struct nfsd4_compoundargs *args)
{
- __be32 status;
-
args->p = p;
args->end = rqstp->rq_arg.head[0].iov_base + rqstp->rq_arg.head[0].iov_len;
args->pagelist = rqstp->rq_arg.pages;
@@ -3349,11 +3471,7 @@ nfs4svc_decode_compoundargs(struct svc_rqst *rqstp, __be32 *p, struct nfsd4_comp
args->ops = args->iops;
args->rqstp = rqstp;
- status = nfsd4_decode_compound(args);
- if (status) {
- nfsd4_release_compoundargs(args);
- }
- return !status;
+ return !nfsd4_decode_compound(args);
}
int
diff --git a/fs/nfsd/nfscache.c b/fs/nfsd/nfscache.c
index 4666a209678..2cbac34a55d 100644
--- a/fs/nfsd/nfscache.c
+++ b/fs/nfsd/nfscache.c
@@ -118,7 +118,7 @@ hash_refile(struct svc_cacherep *rp)
* Note that no operation within the loop may sleep.
*/
int
-nfsd_cache_lookup(struct svc_rqst *rqstp, int type)
+nfsd_cache_lookup(struct svc_rqst *rqstp)
{
struct hlist_node *hn;
struct hlist_head *rh;
@@ -128,6 +128,7 @@ nfsd_cache_lookup(struct svc_rqst *rqstp, int type)
vers = rqstp->rq_vers,
proc = rqstp->rq_proc;
unsigned long age;
+ int type = rqstp->rq_cachetype;
int rtn;
rqstp->rq_cacherep = NULL;
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index 2b1449dd2f4..c7716143cbd 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -24,15 +24,6 @@
*/
enum {
NFSD_Root = 1,
-#ifdef CONFIG_NFSD_DEPRECATED
- NFSD_Svc,
- NFSD_Add,
- NFSD_Del,
- NFSD_Export,
- NFSD_Unexport,
- NFSD_Getfd,
- NFSD_Getfs,
-#endif
NFSD_List,
NFSD_Export_features,
NFSD_Fh,
@@ -59,15 +50,6 @@ enum {
/*
* write() for these nodes.
*/
-#ifdef CONFIG_NFSD_DEPRECATED
-static ssize_t write_svc(struct file *file, char *buf, size_t size);
-static ssize_t write_add(struct file *file, char *buf, size_t size);
-static ssize_t write_del(struct file *file, char *buf, size_t size);
-static ssize_t write_export(struct file *file, char *buf, size_t size);
-static ssize_t write_unexport(struct file *file, char *buf, size_t size);
-static ssize_t write_getfd(struct file *file, char *buf, size_t size);
-static ssize_t write_getfs(struct file *file, char *buf, size_t size);
-#endif
static ssize_t write_filehandle(struct file *file, char *buf, size_t size);
static ssize_t write_unlock_ip(struct file *file, char *buf, size_t size);
static ssize_t write_unlock_fs(struct file *file, char *buf, size_t size);
@@ -83,15 +65,6 @@ static ssize_t write_recoverydir(struct file *file, char *buf, size_t size);
#endif
static ssize_t (*write_op[])(struct file *, char *, size_t) = {
-#ifdef CONFIG_NFSD_DEPRECATED
- [NFSD_Svc] = write_svc,
- [NFSD_Add] = write_add,
- [NFSD_Del] = write_del,
- [NFSD_Export] = write_export,
- [NFSD_Unexport] = write_unexport,
- [NFSD_Getfd] = write_getfd,
- [NFSD_Getfs] = write_getfs,
-#endif
[NFSD_Fh] = write_filehandle,
[NFSD_FO_UnlockIP] = write_unlock_ip,
[NFSD_FO_UnlockFS] = write_unlock_fs,
@@ -130,16 +103,6 @@ static ssize_t nfsctl_transaction_write(struct file *file, const char __user *bu
static ssize_t nfsctl_transaction_read(struct file *file, char __user *buf, size_t size, loff_t *pos)
{
-#ifdef CONFIG_NFSD_DEPRECATED
- static int warned;
- if (file->f_dentry->d_name.name[0] == '.' && !warned) {
- printk(KERN_INFO
- "Warning: \"%s\" uses deprecated NFSD interface: %s."
- " This will be removed in 2.6.40\n",
- current->comm, file->f_dentry->d_name.name);
- warned = 1;
- }
-#endif
if (! file->private_data) {
/* An attempt to read a transaction file without writing
* causes a 0-byte write so that the file can return
@@ -226,303 +189,6 @@ static const struct file_operations pool_stats_operations = {
* payload - write methods
*/
-#ifdef CONFIG_NFSD_DEPRECATED
-/**
- * write_svc - Start kernel's NFSD server
- *
- * Deprecated. /proc/fs/nfsd/threads is preferred.
- * Function remains to support old versions of nfs-utils.
- *
- * Input:
- * buf: struct nfsctl_svc
- * svc_port: port number of this
- * server's listener
- * svc_nthreads: number of threads to start
- * size: size in bytes of passed in nfsctl_svc
- * Output:
- * On success: returns zero
- * On error: return code is negative errno value
- */
-static ssize_t write_svc(struct file *file, char *buf, size_t size)
-{
- struct nfsctl_svc *data;
- int err;
- if (size < sizeof(*data))
- return -EINVAL;
- data = (struct nfsctl_svc*) buf;
- err = nfsd_svc(data->svc_port, data->svc_nthreads);
- if (err < 0)
- return err;
- return 0;
-}
-
-/**
- * write_add - Add or modify client entry in auth unix cache
- *
- * Deprecated. /proc/net/rpc/auth.unix.ip is preferred.
- * Function remains to support old versions of nfs-utils.
- *
- * Input:
- * buf: struct nfsctl_client
- * cl_ident: '\0'-terminated C string
- * containing domain name
- * of client
- * cl_naddr: no. of items in cl_addrlist
- * cl_addrlist: array of client addresses
- * cl_fhkeytype: ignored
- * cl_fhkeylen: ignored
- * cl_fhkey: ignored
- * size: size in bytes of passed in nfsctl_client
- * Output:
- * On success: returns zero
- * On error: return code is negative errno value
- *
- * Note: Only AF_INET client addresses are passed in, since
- * nfsctl_client.cl_addrlist contains only in_addr fields for addresses.
- */
-static ssize_t write_add(struct file *file, char *buf, size_t size)
-{
- struct nfsctl_client *data;
- if (size < sizeof(*data))
- return -EINVAL;
- data = (struct nfsctl_client *)buf;
- return exp_addclient(data);
-}
-
-/**
- * write_del - Remove client from auth unix cache
- *
- * Deprecated. /proc/net/rpc/auth.unix.ip is preferred.
- * Function remains to support old versions of nfs-utils.
- *
- * Input:
- * buf: struct nfsctl_client
- * cl_ident: '\0'-terminated C string
- * containing domain name
- * of client
- * cl_naddr: ignored
- * cl_addrlist: ignored
- * cl_fhkeytype: ignored
- * cl_fhkeylen: ignored
- * cl_fhkey: ignored
- * size: size in bytes of passed in nfsctl_client
- * Output:
- * On success: returns zero
- * On error: return code is negative errno value
- *
- * Note: Only AF_INET client addresses are passed in, since
- * nfsctl_client.cl_addrlist contains only in_addr fields for addresses.
- */
-static ssize_t write_del(struct file *file, char *buf, size_t size)
-{
- struct nfsctl_client *data;
- if (size < sizeof(*data))
- return -EINVAL;
- data = (struct nfsctl_client *)buf;
- return exp_delclient(data);
-}
-
-/**
- * write_export - Export part or all of a local file system
- *
- * Deprecated. /proc/net/rpc/{nfsd.export,nfsd.fh} are preferred.
- * Function remains to support old versions of nfs-utils.
- *
- * Input:
- * buf: struct nfsctl_export
- * ex_client: '\0'-terminated C string
- * containing domain name
- * of client allowed to access
- * this export
- * ex_path: '\0'-terminated C string
- * containing pathname of
- * directory in local file system
- * ex_dev: fsid to use for this export
- * ex_ino: ignored
- * ex_flags: export flags for this export
- * ex_anon_uid: UID to use for anonymous
- * requests
- * ex_anon_gid: GID to use for anonymous
- * requests
- * size: size in bytes of passed in nfsctl_export
- * Output:
- * On success: returns zero
- * On error: return code is negative errno value
- */
-static ssize_t write_export(struct file *file, char *buf, size_t size)
-{
- struct nfsctl_export *data;
- if (size < sizeof(*data))
- return -EINVAL;
- data = (struct nfsctl_export*)buf;
- return exp_export(data);
-}
-
-/**
- * write_unexport - Unexport a previously exported file system
- *
- * Deprecated. /proc/net/rpc/{nfsd.export,nfsd.fh} are preferred.
- * Function remains to support old versions of nfs-utils.
- *
- * Input:
- * buf: struct nfsctl_export
- * ex_client: '\0'-terminated C string
- * containing domain name
- * of client no longer allowed
- * to access this export
- * ex_path: '\0'-terminated C string
- * containing pathname of
- * directory in local file system
- * ex_dev: ignored
- * ex_ino: ignored
- * ex_flags: ignored
- * ex_anon_uid: ignored
- * ex_anon_gid: ignored
- * size: size in bytes of passed in nfsctl_export
- * Output:
- * On success: returns zero
- * On error: return code is negative errno value
- */
-static ssize_t write_unexport(struct file *file, char *buf, size_t size)
-{
- struct nfsctl_export *data;
-
- if (size < sizeof(*data))
- return -EINVAL;
- data = (struct nfsctl_export*)buf;
- return exp_unexport(data);
-}
-
-/**
- * write_getfs - Get a variable-length NFS file handle by path
- *
- * Deprecated. /proc/fs/nfsd/filehandle is preferred.
- * Function remains to support old versions of nfs-utils.
- *
- * Input:
- * buf: struct nfsctl_fsparm
- * gd_addr: socket address of client
- * gd_path: '\0'-terminated C string
- * containing pathname of
- * directory in local file system
- * gd_maxlen: maximum size of returned file
- * handle
- * size: size in bytes of passed in nfsctl_fsparm
- * Output:
- * On success: passed-in buffer filled with a knfsd_fh structure
- * (a variable-length raw NFS file handle);
- * return code is the size in bytes of the file handle
- * On error: return code is negative errno value
- *
- * Note: Only AF_INET client addresses are passed in, since gd_addr
- * is the same size as a struct sockaddr_in.
- */
-static ssize_t write_getfs(struct file *file, char *buf, size_t size)
-{
- struct nfsctl_fsparm *data;
- struct sockaddr_in *sin;
- struct auth_domain *clp;
- int err = 0;
- struct knfsd_fh *res;
- struct in6_addr in6;
-
- if (size < sizeof(*data))
- return -EINVAL;
- data = (struct nfsctl_fsparm*)buf;
- err = -EPROTONOSUPPORT;
- if (data->gd_addr.sa_family != AF_INET)
- goto out;
- sin = (struct sockaddr_in *)&data->gd_addr;
- if (data->gd_maxlen > NFS3_FHSIZE)
- data->gd_maxlen = NFS3_FHSIZE;
-
- res = (struct knfsd_fh*)buf;
-
- exp_readlock();
-
- ipv6_addr_set_v4mapped(sin->sin_addr.s_addr, &in6);
-
- clp = auth_unix_lookup(&init_net, &in6);
- if (!clp)
- err = -EPERM;
- else {
- err = exp_rootfh(clp, data->gd_path, res, data->gd_maxlen);
- auth_domain_put(clp);
- }
- exp_readunlock();
- if (err == 0)
- err = res->fh_size + offsetof(struct knfsd_fh, fh_base);
- out:
- return err;
-}
-
-/**
- * write_getfd - Get a fixed-length NFS file handle by path (used by mountd)
- *
- * Deprecated. /proc/fs/nfsd/filehandle is preferred.
- * Function remains to support old versions of nfs-utils.
- *
- * Input:
- * buf: struct nfsctl_fdparm
- * gd_addr: socket address of client
- * gd_path: '\0'-terminated C string
- * containing pathname of
- * directory in local file system
- * gd_version: fdparm structure version
- * size: size in bytes of passed in nfsctl_fdparm
- * Output:
- * On success: passed-in buffer filled with nfsctl_res
- * (a fixed-length raw NFS file handle);
- * return code is the size in bytes of the file handle
- * On error: return code is negative errno value
- *
- * Note: Only AF_INET client addresses are passed in, since gd_addr
- * is the same size as a struct sockaddr_in.
- */
-static ssize_t write_getfd(struct file *file, char *buf, size_t size)
-{
- struct nfsctl_fdparm *data;
- struct sockaddr_in *sin;
- struct auth_domain *clp;
- int err = 0;
- struct knfsd_fh fh;
- char *res;
- struct in6_addr in6;
-
- if (size < sizeof(*data))
- return -EINVAL;
- data = (struct nfsctl_fdparm*)buf;
- err = -EPROTONOSUPPORT;
- if (data->gd_addr.sa_family != AF_INET)
- goto out;
- err = -EINVAL;
- if (data->gd_version < 2 || data->gd_version > NFSSVC_MAXVERS)
- goto out;
-
- res = buf;
- sin = (struct sockaddr_in *)&data->gd_addr;
- exp_readlock();
-
- ipv6_addr_set_v4mapped(sin->sin_addr.s_addr, &in6);
-
- clp = auth_unix_lookup(&init_net, &in6);
- if (!clp)
- err = -EPERM;
- else {
- err = exp_rootfh(clp, data->gd_path, &fh, NFS_FHSIZE);
- auth_domain_put(clp);
- }
- exp_readunlock();
-
- if (err == 0) {
- memset(res,0, NFS_FHSIZE);
- memcpy(res, &fh.fh_base, fh.fh_size);
- err = NFS_FHSIZE;
- }
- out:
- return err;
-}
-#endif /* CONFIG_NFSD_DEPRECATED */
/**
* write_unlock_ip - Release all locks used by a client
@@ -1397,15 +1063,6 @@ static ssize_t write_recoverydir(struct file *file, char *buf, size_t size)
static int nfsd_fill_super(struct super_block * sb, void * data, int silent)
{
static struct tree_descr nfsd_files[] = {
-#ifdef CONFIG_NFSD_DEPRECATED
- [NFSD_Svc] = {".svc", &transaction_ops, S_IWUSR},
- [NFSD_Add] = {".add", &transaction_ops, S_IWUSR},
- [NFSD_Del] = {".del", &transaction_ops, S_IWUSR},
- [NFSD_Export] = {".export", &transaction_ops, S_IWUSR},
- [NFSD_Unexport] = {".unexport", &transaction_ops, S_IWUSR},
- [NFSD_Getfd] = {".getfd", &transaction_ops, S_IWUSR|S_IRUSR},
- [NFSD_Getfs] = {".getfs", &transaction_ops, S_IWUSR|S_IRUSR},
-#endif
[NFSD_List] = {"exports", &exports_operations, S_IRUGO},
[NFSD_Export_features] = {"export_features",
&export_features_operations, S_IRUGO},
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index 18743c4d8bc..dc5a1bf476b 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -528,16 +528,9 @@ nfsd(void *vrqstp)
continue;
}
-
- /* Lock the export hash tables for reading. */
- exp_readlock();
-
validate_process_creds();
svc_process(rqstp);
validate_process_creds();
-
- /* Unlock export hash tables */
- exp_readunlock();
}
/* Clear signals before calling svc_exit_thread() */
@@ -577,8 +570,22 @@ nfsd_dispatch(struct svc_rqst *rqstp, __be32 *statp)
rqstp->rq_vers, rqstp->rq_proc);
proc = rqstp->rq_procinfo;
+ /*
+ * Give the xdr decoder a chance to change this if it wants
+ * (necessary in the NFSv4.0 compound case)
+ */
+ rqstp->rq_cachetype = proc->pc_cachetype;
+ /* Decode arguments */
+ xdr = proc->pc_decode;
+ if (xdr && !xdr(rqstp, (__be32*)rqstp->rq_arg.head[0].iov_base,
+ rqstp->rq_argp)) {
+ dprintk("nfsd: failed to decode arguments!\n");
+ *statp = rpc_garbage_args;
+ return 1;
+ }
+
/* Check whether we have this call in the cache. */
- switch (nfsd_cache_lookup(rqstp, proc->pc_cachetype)) {
+ switch (nfsd_cache_lookup(rqstp)) {
case RC_INTR:
case RC_DROPIT:
return 0;
@@ -588,16 +595,6 @@ nfsd_dispatch(struct svc_rqst *rqstp, __be32 *statp)
/* do it */
}
- /* Decode arguments */
- xdr = proc->pc_decode;
- if (xdr && !xdr(rqstp, (__be32*)rqstp->rq_arg.head[0].iov_base,
- rqstp->rq_argp)) {
- dprintk("nfsd: failed to decode arguments!\n");
- nfsd_cache_update(rqstp, RC_NOCACHE, NULL);
- *statp = rpc_garbage_args;
- return 1;
- }
-
/* need to grab the location to store the status, as
* nfsv4 does some encoding while processing
*/
diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h
index 6bd2f3c21f2..4eefaf1b42e 100644
--- a/fs/nfsd/state.h
+++ b/fs/nfsd/state.h
@@ -482,6 +482,7 @@ extern void nfsd4_recdir_purge_old(void);
extern int nfsd4_create_clid_dir(struct nfs4_client *clp);
extern void nfsd4_remove_clid_dir(struct nfs4_client *clp);
extern void release_session_client(struct nfsd4_session *);
+extern __be32 nfs4_validate_stateid(stateid_t *, int);
static inline void
nfs4_put_stateowner(struct nfs4_stateowner *so)
diff --git a/fs/nfsd/xdr4.h b/fs/nfsd/xdr4.h
index 366401e1a53..d2a8d04428c 100644
--- a/fs/nfsd/xdr4.h
+++ b/fs/nfsd/xdr4.h
@@ -342,6 +342,25 @@ struct nfsd4_setclientid_confirm {
nfs4_verifier sc_confirm;
};
+struct nfsd4_saved_compoundargs {
+ __be32 *p;
+ __be32 *end;
+ int pagelen;
+ struct page **pagelist;
+};
+
+struct nfsd4_test_stateid {
+ __be32 ts_num_ids;
+ __be32 ts_has_session;
+ struct nfsd4_compoundargs *ts_saved_args;
+ struct nfsd4_saved_compoundargs ts_savedp;
+};
+
+struct nfsd4_free_stateid {
+ stateid_t fr_stateid; /* request */
+ __be32 fr_status; /* response */
+};
+
/* also used for NVERIFY */
struct nfsd4_verify {
u32 ve_bmval[3]; /* request */
@@ -432,10 +451,14 @@ struct nfsd4_op {
struct nfsd4_destroy_session destroy_session;
struct nfsd4_sequence sequence;
struct nfsd4_reclaim_complete reclaim_complete;
+ struct nfsd4_test_stateid test_stateid;
+ struct nfsd4_free_stateid free_stateid;
} u;
struct nfs4_replay * replay;
};
+bool nfsd4_cache_this_op(struct nfsd4_op *);
+
struct nfsd4_compoundargs {
/* scratch variables for XDR decode */
__be32 * p;
@@ -458,6 +481,7 @@ struct nfsd4_compoundargs {
u32 opcnt;
struct nfsd4_op *ops;
struct nfsd4_op iops[8];
+ int cachetype;
};
struct nfsd4_compoundres {
@@ -559,11 +583,15 @@ extern __be32
nfsd4_release_lockowner(struct svc_rqst *rqstp,
struct nfsd4_compound_state *,
struct nfsd4_release_lockowner *rlockowner);
-extern void nfsd4_release_compoundargs(struct nfsd4_compoundargs *);
+extern int nfsd4_release_compoundargs(void *rq, __be32 *p, void *resp);
extern __be32 nfsd4_delegreturn(struct svc_rqst *rqstp,
struct nfsd4_compound_state *, struct nfsd4_delegreturn *dr);
extern __be32 nfsd4_renew(struct svc_rqst *rqstp,
struct nfsd4_compound_state *, clientid_t *clid);
+extern __be32 nfsd4_test_stateid(struct svc_rqst *rqstp,
+ struct nfsd4_compound_state *, struct nfsd4_test_stateid *test_stateid);
+extern __be32 nfsd4_free_stateid(struct svc_rqst *rqstp,
+ struct nfsd4_compound_state *, struct nfsd4_free_stateid *free_stateid);
#endif
/*
diff --git a/fs/notify/group.c b/fs/notify/group.c
index d309f38449c..63fc294a469 100644
--- a/fs/notify/group.c
+++ b/fs/notify/group.c
@@ -26,7 +26,7 @@
#include <linux/fsnotify_backend.h>
#include "fsnotify.h"
-#include <asm/atomic.h>
+#include <linux/atomic.h>
/*
* Final freeing of a group
diff --git a/fs/notify/inode_mark.c b/fs/notify/inode_mark.c
index 07ea8d3e6ea..b13c00ac48e 100644
--- a/fs/notify/inode_mark.c
+++ b/fs/notify/inode_mark.c
@@ -23,7 +23,7 @@
#include <linux/mutex.h>
#include <linux/spinlock.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include <linux/fsnotify_backend.h>
#include "fsnotify.h"
diff --git a/fs/notify/mark.c b/fs/notify/mark.c
index 252ab1f6452..e14587d5568 100644
--- a/fs/notify/mark.c
+++ b/fs/notify/mark.c
@@ -92,7 +92,7 @@
#include <linux/spinlock.h>
#include <linux/srcu.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include <linux/fsnotify_backend.h>
#include "fsnotify.h"
diff --git a/fs/notify/notification.c b/fs/notify/notification.c
index f39260f8f86..ee188158a22 100644
--- a/fs/notify/notification.c
+++ b/fs/notify/notification.c
@@ -43,7 +43,7 @@
#include <linux/slab.h>
#include <linux/spinlock.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include <linux/fsnotify_backend.h>
#include "fsnotify.h"
diff --git a/fs/notify/vfsmount_mark.c b/fs/notify/vfsmount_mark.c
index e86577d6c5c..778fe6cae3b 100644
--- a/fs/notify/vfsmount_mark.c
+++ b/fs/notify/vfsmount_mark.c
@@ -24,7 +24,7 @@
#include <linux/mutex.h>
#include <linux/spinlock.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include <linux/fsnotify_backend.h>
#include "fsnotify.h"
diff --git a/fs/ntfs/inode.h b/fs/ntfs/inode.h
index 2dabf813456..fe8e7e92888 100644
--- a/fs/ntfs/inode.h
+++ b/fs/ntfs/inode.h
@@ -24,7 +24,7 @@
#ifndef _LINUX_NTFS_INODE_H
#define _LINUX_NTFS_INODE_H
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include <linux/fs.h>
#include <linux/list.h>
diff --git a/fs/ocfs2/acl.c b/fs/ocfs2/acl.c
index 1cee970eb55..783c58d9daf 100644
--- a/fs/ocfs2/acl.c
+++ b/fs/ocfs2/acl.c
@@ -290,47 +290,32 @@ static int ocfs2_set_acl(handle_t *handle,
return ret;
}
-int ocfs2_check_acl(struct inode *inode, int mask)
+struct posix_acl *ocfs2_iop_get_acl(struct inode *inode, int type)
{
struct ocfs2_super *osb;
struct buffer_head *di_bh = NULL;
struct posix_acl *acl;
int ret = -EAGAIN;
- if (mask & MAY_NOT_BLOCK)
- return -ECHILD;
-
osb = OCFS2_SB(inode->i_sb);
if (!(osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL))
- return ret;
+ return NULL;
ret = ocfs2_read_inode_block(inode, &di_bh);
- if (ret < 0) {
- mlog_errno(ret);
- return ret;
- }
+ if (ret < 0)
+ return ERR_PTR(ret);
- acl = ocfs2_get_acl_nolock(inode, ACL_TYPE_ACCESS, di_bh);
+ acl = ocfs2_get_acl_nolock(inode, type, di_bh);
brelse(di_bh);
- if (IS_ERR(acl)) {
- mlog_errno(PTR_ERR(acl));
- return PTR_ERR(acl);
- }
- if (acl) {
- ret = posix_acl_permission(inode, acl, mask);
- posix_acl_release(acl);
- return ret;
- }
-
- return -EAGAIN;
+ return acl;
}
int ocfs2_acl_chmod(struct inode *inode)
{
struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
- struct posix_acl *acl, *clone;
+ struct posix_acl *acl;
int ret;
if (S_ISLNK(inode->i_mode))
@@ -342,15 +327,12 @@ int ocfs2_acl_chmod(struct inode *inode)
acl = ocfs2_get_acl(inode, ACL_TYPE_ACCESS);
if (IS_ERR(acl) || !acl)
return PTR_ERR(acl);
- clone = posix_acl_clone(acl, GFP_KERNEL);
+ ret = posix_acl_chmod(&acl, GFP_KERNEL, inode->i_mode);
+ if (ret)
+ return ret;
+ ret = ocfs2_set_acl(NULL, inode, NULL, ACL_TYPE_ACCESS,
+ acl, NULL, NULL);
posix_acl_release(acl);
- if (!clone)
- return -ENOMEM;
- ret = posix_acl_chmod_masq(clone, inode->i_mode);
- if (!ret)
- ret = ocfs2_set_acl(NULL, inode, NULL, ACL_TYPE_ACCESS,
- clone, NULL, NULL);
- posix_acl_release(clone);
return ret;
}
@@ -388,8 +370,6 @@ int ocfs2_init_acl(handle_t *handle,
}
}
if ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) && acl) {
- struct posix_acl *clone;
-
if (S_ISDIR(inode->i_mode)) {
ret = ocfs2_set_acl(handle, inode, di_bh,
ACL_TYPE_DEFAULT, acl,
@@ -397,27 +377,22 @@ int ocfs2_init_acl(handle_t *handle,
if (ret)
goto cleanup;
}
- clone = posix_acl_clone(acl, GFP_NOFS);
- ret = -ENOMEM;
- if (!clone)
- goto cleanup;
-
mode = inode->i_mode;
- ret = posix_acl_create_masq(clone, &mode);
- if (ret >= 0) {
- ret2 = ocfs2_acl_set_mode(inode, di_bh, handle, mode);
- if (ret2) {
- mlog_errno(ret2);
- ret = ret2;
- goto cleanup;
- }
- if (ret > 0) {
- ret = ocfs2_set_acl(handle, inode,
- di_bh, ACL_TYPE_ACCESS,
- clone, meta_ac, data_ac);
- }
+ ret = posix_acl_create(&acl, GFP_NOFS, &mode);
+ if (ret < 0)
+ return ret;
+
+ ret2 = ocfs2_acl_set_mode(inode, di_bh, handle, mode);
+ if (ret2) {
+ mlog_errno(ret2);
+ ret = ret2;
+ goto cleanup;
+ }
+ if (ret > 0) {
+ ret = ocfs2_set_acl(handle, inode,
+ di_bh, ACL_TYPE_ACCESS,
+ acl, meta_ac, data_ac);
}
- posix_acl_release(clone);
}
cleanup:
posix_acl_release(acl);
diff --git a/fs/ocfs2/acl.h b/fs/ocfs2/acl.h
index 5c5d31f0585..071fbd380f2 100644
--- a/fs/ocfs2/acl.h
+++ b/fs/ocfs2/acl.h
@@ -26,7 +26,7 @@ struct ocfs2_acl_entry {
__le32 e_id;
};
-extern int ocfs2_check_acl(struct inode *, int);
+struct posix_acl *ocfs2_iop_get_acl(struct inode *inode, int type);
extern int ocfs2_acl_chmod(struct inode *);
extern int ocfs2_init_acl(handle_t *, struct inode *, struct inode *,
struct buffer_head *, struct buffer_head *,
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 0fc2bd34039..de4ea1af041 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -2600,14 +2600,14 @@ const struct inode_operations ocfs2_file_iops = {
.listxattr = ocfs2_listxattr,
.removexattr = generic_removexattr,
.fiemap = ocfs2_fiemap,
- .check_acl = ocfs2_check_acl,
+ .get_acl = ocfs2_iop_get_acl,
};
const struct inode_operations ocfs2_special_file_iops = {
.setattr = ocfs2_setattr,
.getattr = ocfs2_getattr,
.permission = ocfs2_permission,
- .check_acl = ocfs2_check_acl,
+ .get_acl = ocfs2_iop_get_acl,
};
/*
diff --git a/fs/ocfs2/move_extents.c b/fs/ocfs2/move_extents.c
index cd9427023d2..d53cb706f14 100644
--- a/fs/ocfs2/move_extents.c
+++ b/fs/ocfs2/move_extents.c
@@ -36,7 +36,6 @@
#include "dir.h"
#include "buffer_head_io.h"
#include "sysfile.h"
-#include "suballoc.h"
#include "refcounttree.h"
#include "move_extents.h"
diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
index 33889dc52dd..53aa41ed7bf 100644
--- a/fs/ocfs2/namei.c
+++ b/fs/ocfs2/namei.c
@@ -2498,5 +2498,5 @@ const struct inode_operations ocfs2_dir_iops = {
.listxattr = ocfs2_listxattr,
.removexattr = generic_removexattr,
.fiemap = ocfs2_fiemap,
- .check_acl = ocfs2_check_acl,
+ .get_acl = ocfs2_iop_get_acl,
};
diff --git a/fs/partitions/check.c b/fs/partitions/check.c
index d545e97d99c..e3c63d1c5e1 100644
--- a/fs/partitions/check.c
+++ b/fs/partitions/check.c
@@ -237,22 +237,22 @@ ssize_t part_size_show(struct device *dev,
return sprintf(buf, "%llu\n",(unsigned long long)p->nr_sects);
}
-ssize_t part_ro_show(struct device *dev,
- struct device_attribute *attr, char *buf)
+static ssize_t part_ro_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
struct hd_struct *p = dev_to_part(dev);
return sprintf(buf, "%d\n", p->policy ? 1 : 0);
}
-ssize_t part_alignment_offset_show(struct device *dev,
- struct device_attribute *attr, char *buf)
+static ssize_t part_alignment_offset_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
struct hd_struct *p = dev_to_part(dev);
return sprintf(buf, "%llu\n", (unsigned long long)p->alignment_offset);
}
-ssize_t part_discard_alignment_show(struct device *dev,
- struct device_attribute *attr, char *buf)
+static ssize_t part_discard_alignment_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
struct hd_struct *p = dev_to_part(dev);
return sprintf(buf, "%u\n", p->discard_alignment);
diff --git a/fs/pipe.c b/fs/pipe.c
index da42f7db50d..1b7f9af67cc 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -1291,8 +1291,8 @@ static int __init init_pipe_fs(void)
static void __exit exit_pipe_fs(void)
{
+ kern_unmount(pipe_mnt);
unregister_filesystem(&pipe_fs_type);
- mntput(pipe_mnt);
}
fs_initcall(init_pipe_fs);
diff --git a/fs/posix_acl.c b/fs/posix_acl.c
index b1cf6bf4b41..d43729a760e 100644
--- a/fs/posix_acl.c
+++ b/fs/posix_acl.c
@@ -14,7 +14,7 @@
#include <linux/kernel.h>
#include <linux/slab.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include <linux/fs.h>
#include <linux/sched.h>
#include <linux/posix_acl.h>
@@ -24,13 +24,9 @@
EXPORT_SYMBOL(posix_acl_init);
EXPORT_SYMBOL(posix_acl_alloc);
-EXPORT_SYMBOL(posix_acl_clone);
EXPORT_SYMBOL(posix_acl_valid);
EXPORT_SYMBOL(posix_acl_equiv_mode);
EXPORT_SYMBOL(posix_acl_from_mode);
-EXPORT_SYMBOL(posix_acl_create_masq);
-EXPORT_SYMBOL(posix_acl_chmod_masq);
-EXPORT_SYMBOL(posix_acl_permission);
/*
* Init a fresh posix_acl
@@ -59,7 +55,7 @@ posix_acl_alloc(int count, gfp_t flags)
/*
* Clone an ACL.
*/
-struct posix_acl *
+static struct posix_acl *
posix_acl_clone(const struct posix_acl *acl, gfp_t flags)
{
struct posix_acl *clone = NULL;
@@ -283,8 +279,7 @@ check_perm:
* system calls. All permissions that are not granted by the acl are removed.
* The permissions in the acl are changed to reflect the mode_p parameter.
*/
-int
-posix_acl_create_masq(struct posix_acl *acl, mode_t *mode_p)
+static int posix_acl_create_masq(struct posix_acl *acl, mode_t *mode_p)
{
struct posix_acl_entry *pa, *pe;
struct posix_acl_entry *group_obj = NULL, *mask_obj = NULL;
@@ -341,8 +336,7 @@ posix_acl_create_masq(struct posix_acl *acl, mode_t *mode_p)
/*
* Modify the ACL for the chmod syscall.
*/
-int
-posix_acl_chmod_masq(struct posix_acl *acl, mode_t mode)
+static int posix_acl_chmod_masq(struct posix_acl *acl, mode_t mode)
{
struct posix_acl_entry *group_obj = NULL, *mask_obj = NULL;
struct posix_acl_entry *pa, *pe;
@@ -386,3 +380,39 @@ posix_acl_chmod_masq(struct posix_acl *acl, mode_t mode)
return 0;
}
+
+int
+posix_acl_create(struct posix_acl **acl, gfp_t gfp, mode_t *mode_p)
+{
+ struct posix_acl *clone = posix_acl_clone(*acl, gfp);
+ int err = -ENOMEM;
+ if (clone) {
+ err = posix_acl_create_masq(clone, mode_p);
+ if (err < 0) {
+ posix_acl_release(clone);
+ clone = NULL;
+ }
+ }
+ posix_acl_release(*acl);
+ *acl = clone;
+ return err;
+}
+EXPORT_SYMBOL(posix_acl_create);
+
+int
+posix_acl_chmod(struct posix_acl **acl, gfp_t gfp, mode_t mode)
+{
+ struct posix_acl *clone = posix_acl_clone(*acl, gfp);
+ int err = -ENOMEM;
+ if (clone) {
+ err = posix_acl_chmod_masq(clone, mode);
+ if (err) {
+ posix_acl_release(clone);
+ clone = NULL;
+ }
+ }
+ posix_acl_release(*acl);
+ *acl = clone;
+ return err;
+}
+EXPORT_SYMBOL(posix_acl_chmod);
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 91fb655a5cb..08e3eccf9a1 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -1118,10 +1118,9 @@ static ssize_t oom_adjust_write(struct file *file, const char __user *buf,
* Warn that /proc/pid/oom_adj is deprecated, see
* Documentation/feature-removal-schedule.txt.
*/
- printk_once(KERN_WARNING "%s (%d): /proc/%d/oom_adj is deprecated, "
- "please use /proc/%d/oom_score_adj instead.\n",
- current->comm, task_pid_nr(current),
- task_pid_nr(task), task_pid_nr(task));
+ WARN_ONCE(1, "%s (%d): /proc/%d/oom_adj is deprecated, please use /proc/%d/oom_score_adj instead.\n",
+ current->comm, task_pid_nr(current), task_pid_nr(task),
+ task_pid_nr(task));
task->signal->oom_adj = oom_adjust;
/*
* Scale /proc/pid/oom_score_adj appropriately ensuring that a maximum
@@ -2707,9 +2706,16 @@ static int do_io_accounting(struct task_struct *task, char *buffer, int whole)
{
struct task_io_accounting acct = task->ioac;
unsigned long flags;
+ int result;
- if (!ptrace_may_access(task, PTRACE_MODE_READ))
- return -EACCES;
+ result = mutex_lock_killable(&task->signal->cred_guard_mutex);
+ if (result)
+ return result;
+
+ if (!ptrace_may_access(task, PTRACE_MODE_READ)) {
+ result = -EACCES;
+ goto out_unlock;
+ }
if (whole && lock_task_sighand(task, &flags)) {
struct task_struct *t = task;
@@ -2720,7 +2726,7 @@ static int do_io_accounting(struct task_struct *task, char *buffer, int whole)
unlock_task_sighand(task, &flags);
}
- return sprintf(buffer,
+ result = sprintf(buffer,
"rchar: %llu\n"
"wchar: %llu\n"
"syscr: %llu\n"
@@ -2735,6 +2741,9 @@ static int do_io_accounting(struct task_struct *task, char *buffer, int whole)
(unsigned long long)acct.read_bytes,
(unsigned long long)acct.write_bytes,
(unsigned long long)acct.cancelled_write_bytes);
+out_unlock:
+ mutex_unlock(&task->signal->cred_guard_mutex);
+ return result;
}
static int proc_tid_io_accounting(struct task_struct *task, char *buffer)
diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index 74b48cfa1bb..7ed72d6c1c6 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -319,7 +319,7 @@ static int proc_reg_open(struct inode *inode, struct file *file)
if (!pde->proc_fops) {
spin_unlock(&pde->pde_unload_lock);
kfree(pdeo);
- return -EINVAL;
+ return -ENOENT;
}
pde->pde_users++;
open = pde->proc_fops->open;
diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c
index ed257d14156..586174168e2 100644
--- a/fs/proc/meminfo.c
+++ b/fs/proc/meminfo.c
@@ -10,7 +10,7 @@
#include <linux/seq_file.h>
#include <linux/swap.h>
#include <linux/vmstat.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include "internal.h"
diff --git a/fs/reiserfs/bitmap.c b/fs/reiserfs/bitmap.c
index 483442e66ed..d1aca1df4f9 100644
--- a/fs/reiserfs/bitmap.c
+++ b/fs/reiserfs/bitmap.c
@@ -214,7 +214,7 @@ static int scan_bitmap_block(struct reiserfs_transaction_handle *th,
}
/* otherwise we clear all bit were set ... */
while (--i >= *beg)
- reiserfs_test_and_clear_le_bit
+ reiserfs_clear_le_bit
(i, bh->b_data);
reiserfs_restore_prepared_buffer(s, bh);
*beg = org;
@@ -1222,15 +1222,11 @@ void reiserfs_cache_bitmap_metadata(struct super_block *sb,
info->free_count = 0;
while (--cur >= (unsigned long *)bh->b_data) {
- int i;
-
/* 0 and ~0 are special, we can optimize for them */
if (*cur == 0)
info->free_count += BITS_PER_LONG;
else if (*cur != ~0L) /* A mix, investigate */
- for (i = BITS_PER_LONG - 1; i >= 0; i--)
- if (!reiserfs_test_le_bit(i, cur))
- info->free_count++;
+ info->free_count += BITS_PER_LONG - hweight_long(*cur);
}
}
diff --git a/fs/reiserfs/file.c b/fs/reiserfs/file.c
index c7156dc39ce..ace635053a3 100644
--- a/fs/reiserfs/file.c
+++ b/fs/reiserfs/file.c
@@ -319,5 +319,5 @@ const struct inode_operations reiserfs_file_inode_operations = {
.listxattr = reiserfs_listxattr,
.removexattr = reiserfs_removexattr,
.permission = reiserfs_permission,
- .check_acl = reiserfs_check_acl,
+ .get_acl = reiserfs_get_acl,
};
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index 2922b90ceac..9b0d4b78b4f 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -1475,6 +1475,11 @@ void reiserfs_read_locked_inode(struct inode *inode,
reiserfs_check_path(&path_to_sd); /* init inode should be relsing */
+ /*
+ * Stat data v1 doesn't support ACLs.
+ */
+ if (get_inode_sd_version(inode) == STAT_DATA_V1)
+ cache_no_acl(inode);
}
/**
diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c
index c5e82ece7c6..a159ba5a35e 100644
--- a/fs/reiserfs/journal.c
+++ b/fs/reiserfs/journal.c
@@ -678,23 +678,19 @@ struct buffer_chunk {
static void write_chunk(struct buffer_chunk *chunk)
{
int i;
- get_fs_excl();
for (i = 0; i < chunk->nr; i++) {
submit_logged_buffer(chunk->bh[i]);
}
chunk->nr = 0;
- put_fs_excl();
}
static void write_ordered_chunk(struct buffer_chunk *chunk)
{
int i;
- get_fs_excl();
for (i = 0; i < chunk->nr; i++) {
submit_ordered_buffer(chunk->bh[i]);
}
chunk->nr = 0;
- put_fs_excl();
}
static int add_to_chunk(struct buffer_chunk *chunk, struct buffer_head *bh,
@@ -986,8 +982,6 @@ static int flush_commit_list(struct super_block *s,
return 0;
}
- get_fs_excl();
-
/* before we can put our commit blocks on disk, we have to make sure everyone older than
** us is on disk too
*/
@@ -1145,7 +1139,6 @@ static int flush_commit_list(struct super_block *s,
if (retval)
reiserfs_abort(s, retval, "Journal write error in %s",
__func__);
- put_fs_excl();
return retval;
}
@@ -1374,8 +1367,6 @@ static int flush_journal_list(struct super_block *s,
return 0;
}
- get_fs_excl();
-
/* if all the work is already done, get out of here */
if (atomic_read(&(jl->j_nonzerolen)) <= 0 &&
atomic_read(&(jl->j_commit_left)) <= 0) {
@@ -1597,7 +1588,6 @@ static int flush_journal_list(struct super_block *s,
put_journal_list(s, jl);
if (flushall)
mutex_unlock(&journal->j_flush_mutex);
- put_fs_excl();
return err;
}
@@ -3108,7 +3098,6 @@ static int do_journal_begin_r(struct reiserfs_transaction_handle *th,
th->t_trans_id = journal->j_trans_id;
unlock_journal(sb);
INIT_LIST_HEAD(&th->t_list);
- get_fs_excl();
return 0;
out_fail:
@@ -3964,7 +3953,6 @@ static int do_journal_end(struct reiserfs_transaction_handle *th,
flush = flags & FLUSH_ALL;
wait_on_commit = flags & WAIT;
- put_fs_excl();
current->journal_info = th->t_handle_save;
reiserfs_check_lock_depth(sb, "journal end");
if (journal->j_len == 0) {
@@ -4316,4 +4304,3 @@ void reiserfs_abort_journal(struct super_block *sb, int errno)
dump_stack();
#endif
}
-
diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c
index 551f1b79dbc..ef392324bbf 100644
--- a/fs/reiserfs/namei.c
+++ b/fs/reiserfs/namei.c
@@ -1529,7 +1529,7 @@ const struct inode_operations reiserfs_dir_inode_operations = {
.listxattr = reiserfs_listxattr,
.removexattr = reiserfs_removexattr,
.permission = reiserfs_permission,
- .check_acl = reiserfs_check_acl,
+ .get_acl = reiserfs_get_acl,
};
/*
@@ -1546,7 +1546,7 @@ const struct inode_operations reiserfs_symlink_inode_operations = {
.listxattr = reiserfs_listxattr,
.removexattr = reiserfs_removexattr,
.permission = reiserfs_permission,
- .check_acl = reiserfs_check_acl,
+ .get_acl = reiserfs_get_acl,
};
@@ -1560,5 +1560,5 @@ const struct inode_operations reiserfs_special_inode_operations = {
.listxattr = reiserfs_listxattr,
.removexattr = reiserfs_removexattr,
.permission = reiserfs_permission,
- .check_acl = reiserfs_check_acl,
+ .get_acl = reiserfs_get_acl,
};
diff --git a/fs/reiserfs/resize.c b/fs/reiserfs/resize.c
index b3a94d20f0f..b6b9b1fe33b 100644
--- a/fs/reiserfs/resize.c
+++ b/fs/reiserfs/resize.c
@@ -136,7 +136,7 @@ int reiserfs_resize(struct super_block *s, unsigned long block_count_new)
return -EIO;
}
memset(bh->b_data, 0, sb_blocksize(sb));
- reiserfs_test_and_set_le_bit(0, bh->b_data);
+ reiserfs_set_le_bit(0, bh->b_data);
reiserfs_cache_bitmap_metadata(s, bh, bitmap + i);
set_buffer_uptodate(bh);
@@ -172,7 +172,7 @@ int reiserfs_resize(struct super_block *s, unsigned long block_count_new)
reiserfs_prepare_for_journal(s, bh, 1);
for (i = block_r; i < s->s_blocksize * 8; i++)
- reiserfs_test_and_clear_le_bit(i, bh->b_data);
+ reiserfs_clear_le_bit(i, bh->b_data);
info->free_count += s->s_blocksize * 8 - block_r;
journal_mark_dirty(&th, s, bh);
@@ -190,7 +190,7 @@ int reiserfs_resize(struct super_block *s, unsigned long block_count_new)
reiserfs_prepare_for_journal(s, bh, 1);
for (i = block_r_new; i < s->s_blocksize * 8; i++)
- reiserfs_test_and_set_le_bit(i, bh->b_data);
+ reiserfs_set_le_bit(i, bh->b_data);
journal_mark_dirty(&th, s, bh);
brelse(bh);
diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index 6938d8c68d6..6bc346c160e 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -867,33 +867,6 @@ out:
return err;
}
-int reiserfs_check_acl(struct inode *inode, int mask)
-{
- struct posix_acl *acl;
- int error = -EAGAIN; /* do regular unix permission checks by default */
-
- /*
- * Stat data v1 doesn't support ACLs.
- */
- if (get_inode_sd_version(inode) == STAT_DATA_V1)
- return -EAGAIN;
-
- if (mask & MAY_NOT_BLOCK)
- return -ECHILD;
-
- acl = reiserfs_get_acl(inode, ACL_TYPE_ACCESS);
-
- if (acl) {
- if (!IS_ERR(acl)) {
- error = posix_acl_permission(inode, acl, mask);
- posix_acl_release(acl);
- } else if (PTR_ERR(acl) != -ENODATA)
- error = PTR_ERR(acl);
- }
-
- return error;
-}
-
static int create_privroot(struct dentry *dentry)
{
int err;
diff --git a/fs/reiserfs/xattr_acl.c b/fs/reiserfs/xattr_acl.c
index 3dc38f1206f..7362cf4c946 100644
--- a/fs/reiserfs/xattr_acl.c
+++ b/fs/reiserfs/xattr_acl.c
@@ -354,9 +354,7 @@ reiserfs_inherit_default_acl(struct reiserfs_transaction_handle *th,
return PTR_ERR(acl);
if (acl) {
- struct posix_acl *acl_copy;
mode_t mode = inode->i_mode;
- int need_acl;
/* Copy the default ACL to the default ACL of a new directory */
if (S_ISDIR(inode->i_mode)) {
@@ -368,29 +366,15 @@ reiserfs_inherit_default_acl(struct reiserfs_transaction_handle *th,
/* Now we reconcile the new ACL and the mode,
potentially modifying both */
- acl_copy = posix_acl_clone(acl, GFP_NOFS);
- if (!acl_copy) {
- err = -ENOMEM;
- goto cleanup;
- }
+ err = posix_acl_create(&acl, GFP_NOFS, &mode);
+ if (err < 0)
+ return err;
- need_acl = posix_acl_create_masq(acl_copy, &mode);
- if (need_acl >= 0) {
- if (mode != inode->i_mode) {
- inode->i_mode = mode;
- }
+ inode->i_mode = mode;
- /* If we need an ACL.. */
- if (need_acl > 0) {
- err = reiserfs_set_acl(th, inode,
- ACL_TYPE_ACCESS,
- acl_copy);
- if (err)
- goto cleanup_copy;
- }
- }
- cleanup_copy:
- posix_acl_release(acl_copy);
+ /* If we need an ACL.. */
+ if (err > 0)
+ err = reiserfs_set_acl(th, inode, ACL_TYPE_ACCESS, acl);
cleanup:
posix_acl_release(acl);
} else {
@@ -445,7 +429,10 @@ int reiserfs_cache_default_acl(struct inode *inode)
int reiserfs_acl_chmod(struct inode *inode)
{
- struct posix_acl *acl, *clone;
+ struct reiserfs_transaction_handle th;
+ struct posix_acl *acl;
+ size_t size;
+ int depth;
int error;
if (S_ISLNK(inode->i_mode))
@@ -463,30 +450,22 @@ int reiserfs_acl_chmod(struct inode *inode)
return 0;
if (IS_ERR(acl))
return PTR_ERR(acl);
- clone = posix_acl_clone(acl, GFP_NOFS);
- posix_acl_release(acl);
- if (!clone)
- return -ENOMEM;
- error = posix_acl_chmod_masq(clone, inode->i_mode);
+ error = posix_acl_chmod(&acl, GFP_NOFS, inode->i_mode);
+ if (error)
+ return error;
+
+ size = reiserfs_xattr_nblocks(inode, reiserfs_acl_size(acl->a_count));
+ depth = reiserfs_write_lock_once(inode->i_sb);
+ error = journal_begin(&th, inode->i_sb, size * 2);
if (!error) {
- struct reiserfs_transaction_handle th;
- size_t size = reiserfs_xattr_nblocks(inode,
- reiserfs_acl_size(clone->a_count));
- int depth;
-
- depth = reiserfs_write_lock_once(inode->i_sb);
- error = journal_begin(&th, inode->i_sb, size * 2);
- if (!error) {
- int error2;
- error = reiserfs_set_acl(&th, inode, ACL_TYPE_ACCESS,
- clone);
- error2 = journal_end(&th, inode->i_sb, size * 2);
- if (error2)
- error = error2;
- }
- reiserfs_write_unlock_once(inode->i_sb, depth);
+ int error2;
+ error = reiserfs_set_acl(&th, inode, ACL_TYPE_ACCESS, acl);
+ error2 = journal_end(&th, inode->i_sb, size * 2);
+ if (error2)
+ error = error2;
}
- posix_acl_release(clone);
+ reiserfs_write_unlock_once(inode->i_sb, depth);
+ posix_acl_release(acl);
return error;
}
diff --git a/fs/splice.c b/fs/splice.c
index aa866d30969..fa2defa8afc 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -132,7 +132,7 @@ error:
return err;
}
-static const struct pipe_buf_operations page_cache_pipe_buf_ops = {
+const struct pipe_buf_operations page_cache_pipe_buf_ops = {
.can_merge = 0,
.map = generic_pipe_buf_map,
.unmap = generic_pipe_buf_unmap,
@@ -264,7 +264,7 @@ ssize_t splice_to_pipe(struct pipe_inode_info *pipe,
return ret;
}
-static void spd_release_page(struct splice_pipe_desc *spd, unsigned int i)
+void spd_release_page(struct splice_pipe_desc *spd, unsigned int i)
{
page_cache_release(spd->pages[i]);
}
diff --git a/fs/squashfs/Kconfig b/fs/squashfs/Kconfig
index 7797218d0b3..1360d4f88f4 100644
--- a/fs/squashfs/Kconfig
+++ b/fs/squashfs/Kconfig
@@ -1,7 +1,6 @@
config SQUASHFS
tristate "SquashFS 4.0 - Squashed file system support"
depends on BLOCK
- select ZLIB_INFLATE
help
Saying Y here includes support for SquashFS 4.0 (a Compressed
Read-Only File System). Squashfs is a highly compressed read-only
@@ -36,6 +35,19 @@ config SQUASHFS_XATTR
If unsure, say N.
+config SQUASHFS_ZLIB
+ bool "Include support for ZLIB compressed file systems"
+ depends on SQUASHFS
+ select ZLIB_INFLATE
+ default y
+ help
+ ZLIB compression is the standard compression used by Squashfs
+ file systems. It offers a good trade-off between compression
+ achieved and the amount of CPU time and memory necessary to
+ compress and decompress.
+
+ If unsure, say Y.
+
config SQUASHFS_LZO
bool "Include support for LZO compressed file systems"
depends on SQUASHFS
diff --git a/fs/squashfs/Makefile b/fs/squashfs/Makefile
index cecf2bea07a..110b0476f3b 100644
--- a/fs/squashfs/Makefile
+++ b/fs/squashfs/Makefile
@@ -4,7 +4,8 @@
obj-$(CONFIG_SQUASHFS) += squashfs.o
squashfs-y += block.o cache.o dir.o export.o file.o fragment.o id.o inode.o
-squashfs-y += namei.o super.o symlink.o zlib_wrapper.o decompressor.o
+squashfs-y += namei.o super.o symlink.o decompressor.o
squashfs-$(CONFIG_SQUASHFS_XATTR) += xattr.o xattr_id.o
squashfs-$(CONFIG_SQUASHFS_LZO) += lzo_wrapper.o
squashfs-$(CONFIG_SQUASHFS_XZ) += xz_wrapper.o
+squashfs-$(CONFIG_SQUASHFS_ZLIB) += zlib_wrapper.o
diff --git a/fs/squashfs/decompressor.c b/fs/squashfs/decompressor.c
index 9f1b0bb96f1..3f6271d86ab 100644
--- a/fs/squashfs/decompressor.c
+++ b/fs/squashfs/decompressor.c
@@ -52,6 +52,12 @@ static const struct squashfs_decompressor squashfs_xz_comp_ops = {
};
#endif
+#ifndef CONFIG_SQUASHFS_ZLIB
+static const struct squashfs_decompressor squashfs_zlib_comp_ops = {
+ NULL, NULL, NULL, ZLIB_COMPRESSION, "zlib", 0
+};
+#endif
+
static const struct squashfs_decompressor squashfs_unknown_comp_ops = {
NULL, NULL, NULL, 0, "unknown", 0
};
diff --git a/fs/squashfs/decompressor.h b/fs/squashfs/decompressor.h
index 8ba70cff09a..330073e2902 100644
--- a/fs/squashfs/decompressor.h
+++ b/fs/squashfs/decompressor.h
@@ -56,4 +56,8 @@ extern const struct squashfs_decompressor squashfs_xz_comp_ops;
extern const struct squashfs_decompressor squashfs_lzo_comp_ops;
#endif
+#ifdef CONFIG_SQUASHFS_ZLIB
+extern const struct squashfs_decompressor squashfs_zlib_comp_ops;
+#endif
+
#endif
diff --git a/fs/squashfs/squashfs.h b/fs/squashfs/squashfs.h
index e3be6a71cfa..d1266516ed0 100644
--- a/fs/squashfs/squashfs.h
+++ b/fs/squashfs/squashfs.h
@@ -97,6 +97,3 @@ extern const struct inode_operations squashfs_symlink_inode_ops;
/* xattr.c */
extern const struct xattr_handler *squashfs_xattr_handlers[];
-
-/* zlib_wrapper.c */
-extern const struct squashfs_decompressor squashfs_zlib_comp_ops;
diff --git a/fs/super.c b/fs/super.c
index 7943f04cb3a..3f56a269a4f 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -351,13 +351,11 @@ bool grab_super_passive(struct super_block *sb)
*/
void lock_super(struct super_block * sb)
{
- get_fs_excl();
mutex_lock(&sb->s_lock);
}
void unlock_super(struct super_block * sb)
{
- put_fs_excl();
mutex_unlock(&sb->s_lock);
}
@@ -385,7 +383,6 @@ void generic_shutdown_super(struct super_block *sb)
if (sb->s_root) {
shrink_dcache_for_umount(sb);
sync_filesystem(sb);
- get_fs_excl();
sb->s_flags &= ~MS_ACTIVE;
fsnotify_unmount_inodes(&sb->s_inodes);
@@ -400,7 +397,6 @@ void generic_shutdown_super(struct super_block *sb)
"Self-destruct in 5 seconds. Have a nice day...\n",
sb->s_id);
}
- put_fs_excl();
}
spin_lock(&sb_lock);
/* should be initialized for __put_super_and_need_restart() */
diff --git a/fs/xfs/linux-2.6/xfs_acl.c b/fs/xfs/linux-2.6/xfs_acl.c
index cac48fe22ad..44ce5165680 100644
--- a/fs/xfs/linux-2.6/xfs_acl.c
+++ b/fs/xfs/linux-2.6/xfs_acl.c
@@ -114,6 +114,8 @@ xfs_get_acl(struct inode *inode, int type)
if (acl != ACL_NOT_CACHED)
return acl;
+ trace_xfs_get_acl(ip);
+
switch (type) {
case ACL_TYPE_ACCESS:
ea_name = SGI_ACL_FILE;
@@ -218,40 +220,6 @@ xfs_set_acl(struct inode *inode, int type, struct posix_acl *acl)
return error;
}
-int
-xfs_check_acl(struct inode *inode, int mask)
-{
- struct xfs_inode *ip;
- struct posix_acl *acl;
- int error = -EAGAIN;
-
- ip = XFS_I(inode);
- trace_xfs_check_acl(ip);
-
- /*
- * If there is no attribute fork no ACL exists on this inode and
- * we can skip the whole exercise.
- */
- if (!XFS_IFORK_Q(ip))
- return -EAGAIN;
-
- if (mask & MAY_NOT_BLOCK) {
- if (!negative_cached_acl(inode, ACL_TYPE_ACCESS))
- return -ECHILD;
- return -EAGAIN;
- }
-
- acl = xfs_get_acl(inode, ACL_TYPE_ACCESS);
- if (IS_ERR(acl))
- return PTR_ERR(acl);
- if (acl) {
- error = posix_acl_permission(inode, acl, mask);
- posix_acl_release(acl);
- }
-
- return error;
-}
-
static int
xfs_set_mode(struct inode *inode, mode_t mode)
{
@@ -297,29 +265,23 @@ posix_acl_default_exists(struct inode *inode)
* No need for i_mutex because the inode is not yet exposed to the VFS.
*/
int
-xfs_inherit_acl(struct inode *inode, struct posix_acl *default_acl)
+xfs_inherit_acl(struct inode *inode, struct posix_acl *acl)
{
- struct posix_acl *clone;
- mode_t mode;
+ mode_t mode = inode->i_mode;
int error = 0, inherit = 0;
if (S_ISDIR(inode->i_mode)) {
- error = xfs_set_acl(inode, ACL_TYPE_DEFAULT, default_acl);
+ error = xfs_set_acl(inode, ACL_TYPE_DEFAULT, acl);
if (error)
- return error;
+ goto out;
}
- clone = posix_acl_clone(default_acl, GFP_KERNEL);
- if (!clone)
- return -ENOMEM;
-
- mode = inode->i_mode;
- error = posix_acl_create_masq(clone, &mode);
+ error = posix_acl_create(&acl, GFP_KERNEL, &mode);
if (error < 0)
- goto out_release_clone;
+ return error;
/*
- * If posix_acl_create_masq returns a positive value we need to
+ * If posix_acl_create returns a positive value we need to
* inherit a permission that can't be represented using the Unix
* mode bits and we actually need to set an ACL.
*/
@@ -328,20 +290,20 @@ xfs_inherit_acl(struct inode *inode, struct posix_acl *default_acl)
error = xfs_set_mode(inode, mode);
if (error)
- goto out_release_clone;
+ goto out;
if (inherit)
- error = xfs_set_acl(inode, ACL_TYPE_ACCESS, clone);
+ error = xfs_set_acl(inode, ACL_TYPE_ACCESS, acl);
- out_release_clone:
- posix_acl_release(clone);
+out:
+ posix_acl_release(acl);
return error;
}
int
xfs_acl_chmod(struct inode *inode)
{
- struct posix_acl *acl, *clone;
+ struct posix_acl *acl;
int error;
if (S_ISLNK(inode->i_mode))
@@ -351,16 +313,12 @@ xfs_acl_chmod(struct inode *inode)
if (IS_ERR(acl) || !acl)
return PTR_ERR(acl);
- clone = posix_acl_clone(acl, GFP_KERNEL);
- posix_acl_release(acl);
- if (!clone)
- return -ENOMEM;
-
- error = posix_acl_chmod_masq(clone, inode->i_mode);
- if (!error)
- error = xfs_set_acl(inode, ACL_TYPE_ACCESS, clone);
+ error = posix_acl_chmod(&acl, GFP_KERNEL, inode->i_mode);
+ if (error)
+ return error;
- posix_acl_release(clone);
+ error = xfs_set_acl(inode, ACL_TYPE_ACCESS, acl);
+ posix_acl_release(acl);
return error;
}
diff --git a/fs/xfs/linux-2.6/xfs_file.c b/fs/xfs/linux-2.6/xfs_file.c
index cca00f49e09..825390e1c13 100644
--- a/fs/xfs/linux-2.6/xfs_file.c
+++ b/fs/xfs/linux-2.6/xfs_file.c
@@ -881,11 +881,14 @@ xfs_file_aio_write(
/* Handle various SYNC-type writes */
if ((file->f_flags & O_DSYNC) || IS_SYNC(inode)) {
loff_t end = pos + ret - 1;
+ int error;
xfs_rw_iunlock(ip, iolock);
- ret = -xfs_file_fsync(file, pos, end,
+ error = xfs_file_fsync(file, pos, end,
(file->f_flags & __O_SYNC) ? 0 : 1);
xfs_rw_ilock(ip, iolock);
+ if (error)
+ ret = error;
}
out_unlock:
diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c
index 501e4f63054..6544c3236bc 100644
--- a/fs/xfs/linux-2.6/xfs_iops.c
+++ b/fs/xfs/linux-2.6/xfs_iops.c
@@ -202,9 +202,9 @@ xfs_vn_mknod(
if (default_acl) {
error = -xfs_inherit_acl(inode, default_acl);
+ default_acl = NULL;
if (unlikely(error))
goto out_cleanup_inode;
- posix_acl_release(default_acl);
}
@@ -1022,7 +1022,7 @@ xfs_vn_fiemap(
}
static const struct inode_operations xfs_inode_operations = {
- .check_acl = xfs_check_acl,
+ .get_acl = xfs_get_acl,
.getattr = xfs_vn_getattr,
.setattr = xfs_vn_setattr,
.setxattr = generic_setxattr,
@@ -1048,7 +1048,7 @@ static const struct inode_operations xfs_dir_inode_operations = {
.rmdir = xfs_vn_unlink,
.mknod = xfs_vn_mknod,
.rename = xfs_vn_rename,
- .check_acl = xfs_check_acl,
+ .get_acl = xfs_get_acl,
.getattr = xfs_vn_getattr,
.setattr = xfs_vn_setattr,
.setxattr = generic_setxattr,
@@ -1073,7 +1073,7 @@ static const struct inode_operations xfs_dir_ci_inode_operations = {
.rmdir = xfs_vn_unlink,
.mknod = xfs_vn_mknod,
.rename = xfs_vn_rename,
- .check_acl = xfs_check_acl,
+ .get_acl = xfs_get_acl,
.getattr = xfs_vn_getattr,
.setattr = xfs_vn_setattr,
.setxattr = generic_setxattr,
@@ -1086,7 +1086,7 @@ static const struct inode_operations xfs_symlink_inode_operations = {
.readlink = generic_readlink,
.follow_link = xfs_vn_follow_link,
.put_link = xfs_vn_put_link,
- .check_acl = xfs_check_acl,
+ .get_acl = xfs_get_acl,
.getattr = xfs_vn_getattr,
.setattr = xfs_vn_setattr,
.setxattr = generic_setxattr,
@@ -1194,6 +1194,10 @@ xfs_setup_inode(
break;
}
+ /* if there is no attribute fork no ACL can exist on this inode */
+ if (!XFS_IFORK_Q(ip))
+ cache_no_acl(inode);
+
xfs_iflags_clear(ip, XFS_INEW);
barrier();
diff --git a/fs/xfs/linux-2.6/xfs_trace.h b/fs/xfs/linux-2.6/xfs_trace.h
index fda0708ef2e..690fc7a7bd7 100644
--- a/fs/xfs/linux-2.6/xfs_trace.h
+++ b/fs/xfs/linux-2.6/xfs_trace.h
@@ -571,7 +571,7 @@ DEFINE_INODE_EVENT(xfs_alloc_file_space);
DEFINE_INODE_EVENT(xfs_free_file_space);
DEFINE_INODE_EVENT(xfs_readdir);
#ifdef CONFIG_XFS_POSIX_ACL
-DEFINE_INODE_EVENT(xfs_check_acl);
+DEFINE_INODE_EVENT(xfs_get_acl);
#endif
DEFINE_INODE_EVENT(xfs_vm_bmap);
DEFINE_INODE_EVENT(xfs_file_ioctl);
diff --git a/fs/xfs/xfs_acl.h b/fs/xfs/xfs_acl.h
index 0135e2a669d..2c656ef4947 100644
--- a/fs/xfs/xfs_acl.h
+++ b/fs/xfs/xfs_acl.h
@@ -42,7 +42,6 @@ struct xfs_acl {
#define SGI_ACL_DEFAULT_SIZE (sizeof(SGI_ACL_DEFAULT)-1)
#ifdef CONFIG_XFS_POSIX_ACL
-extern int xfs_check_acl(struct inode *inode, int mask);
extern struct posix_acl *xfs_get_acl(struct inode *inode, int type);
extern int xfs_inherit_acl(struct inode *inode, struct posix_acl *default_acl);
extern int xfs_acl_chmod(struct inode *inode);
@@ -52,7 +51,6 @@ extern int posix_acl_default_exists(struct inode *inode);
extern const struct xattr_handler xfs_xattr_acl_access_handler;
extern const struct xattr_handler xfs_xattr_acl_default_handler;
#else
-# define xfs_check_acl NULL
# define xfs_get_acl(inode, type) NULL
# define xfs_inherit_acl(inode, default_acl) 0
# define xfs_acl_chmod(inode) 0
diff --git a/fs/xfs/xfs_dir2_node.c b/fs/xfs/xfs_dir2_node.c
index 084b3247d63..0179a41d9e5 100644
--- a/fs/xfs/xfs_dir2_node.c
+++ b/fs/xfs/xfs_dir2_node.c
@@ -1564,7 +1564,7 @@ xfs_dir2_node_addname_int(
if (unlikely(xfs_dir2_db_to_fdb(mp, dbno) != fbno)) {
xfs_alert(mp,
- "%s: dir ino " "%llu needed freesp block %lld for\n"
+ "%s: dir ino %llu needed freesp block %lld for\n"
" data block %lld, got %lld ifbno %llu lastfbno %d",
__func__, (unsigned long long)dp->i_ino,
(long long)xfs_dir2_db_to_fdb(mp, dbno),