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-rw-r--r--fs/btrfs/Kconfig3
-rw-r--r--fs/btrfs/export.c4
-rw-r--r--fs/btrfs/extent-tree.c25
-rw-r--r--fs/btrfs/file.c8
-rw-r--r--fs/btrfs/inode.c4
-rw-r--r--fs/btrfs/ioctl.c52
-rw-r--r--fs/btrfs/relocation.c4
-rw-r--r--fs/btrfs/send.c2
-rw-r--r--fs/btrfs/super.c1
-rw-r--r--fs/btrfs/transaction.c1
10 files changed, 43 insertions, 61 deletions
diff --git a/fs/btrfs/Kconfig b/fs/btrfs/Kconfig
index 5f583c8a36d..9a8622a5b86 100644
--- a/fs/btrfs/Kconfig
+++ b/fs/btrfs/Kconfig
@@ -1,6 +1,5 @@
config BTRFS_FS
- tristate "Btrfs filesystem (EXPERIMENTAL) Unstable disk format"
- depends on EXPERIMENTAL
+ tristate "Btrfs filesystem Unstable disk format"
select LIBCRC32C
select ZLIB_INFLATE
select ZLIB_DEFLATE
diff --git a/fs/btrfs/export.c b/fs/btrfs/export.c
index 614f34a899c..81ee29eeb7c 100644
--- a/fs/btrfs/export.c
+++ b/fs/btrfs/export.c
@@ -22,10 +22,10 @@ static int btrfs_encode_fh(struct inode *inode, u32 *fh, int *max_len,
if (parent && (len < BTRFS_FID_SIZE_CONNECTABLE)) {
*max_len = BTRFS_FID_SIZE_CONNECTABLE;
- return 255;
+ return FILEID_INVALID;
} else if (len < BTRFS_FID_SIZE_NON_CONNECTABLE) {
*max_len = BTRFS_FID_SIZE_NON_CONNECTABLE;
- return 255;
+ return FILEID_INVALID;
}
len = BTRFS_FID_SIZE_NON_CONNECTABLE;
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 0d8478700d7..3d551231cab 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -3808,23 +3808,6 @@ static int can_overcommit(struct btrfs_root *root,
return 0;
}
-static inline int writeback_inodes_sb_nr_if_idle_safe(struct super_block *sb,
- unsigned long nr_pages,
- enum wb_reason reason)
-{
- /* the flusher is dealing with the dirty inodes now. */
- if (writeback_in_progress(sb->s_bdi))
- return 1;
-
- if (down_read_trylock(&sb->s_umount)) {
- writeback_inodes_sb_nr(sb, nr_pages, reason);
- up_read(&sb->s_umount);
- return 1;
- }
-
- return 0;
-}
-
void btrfs_writeback_inodes_sb_nr(struct btrfs_root *root,
unsigned long nr_pages)
{
@@ -3832,7 +3815,7 @@ void btrfs_writeback_inodes_sb_nr(struct btrfs_root *root,
int started;
/* If we can not start writeback, just sync all the delalloc file. */
- started = writeback_inodes_sb_nr_if_idle_safe(sb, nr_pages,
+ started = try_to_writeback_inodes_sb_nr(sb, nr_pages,
WB_REASON_FS_FREE_SPACE);
if (!started) {
/*
@@ -6759,7 +6742,7 @@ reada:
}
/*
- * hepler to process tree block while walking down the tree.
+ * helper to process tree block while walking down the tree.
*
* when wc->stage == UPDATE_BACKREF, this function updates
* back refs for pointers in the block.
@@ -6834,7 +6817,7 @@ static noinline int walk_down_proc(struct btrfs_trans_handle *trans,
}
/*
- * hepler to process tree block pointer.
+ * helper to process tree block pointer.
*
* when wc->stage == DROP_REFERENCE, this function checks
* reference count of the block pointed to. if the block
@@ -6972,7 +6955,7 @@ skip:
}
/*
- * hepler to process tree block while walking up the tree.
+ * helper to process tree block while walking up the tree.
*
* when wc->stage == DROP_REFERENCE, this function drops
* reference count on the block.
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 1be25b92d63..ade03e6f7bd 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -1230,7 +1230,7 @@ static noinline int prepare_pages(struct btrfs_root *root, struct file *file,
struct extent_state *cached_state = NULL;
int i;
unsigned long index = pos >> PAGE_CACHE_SHIFT;
- struct inode *inode = fdentry(file)->d_inode;
+ struct inode *inode = file_inode(file);
gfp_t mask = btrfs_alloc_write_mask(inode->i_mapping);
int err = 0;
int faili = 0;
@@ -1317,7 +1317,7 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file,
struct iov_iter *i,
loff_t pos)
{
- struct inode *inode = fdentry(file)->d_inode;
+ struct inode *inode = file_inode(file);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct page **pages = NULL;
unsigned long first_index;
@@ -1505,7 +1505,7 @@ static ssize_t btrfs_file_aio_write(struct kiocb *iocb,
unsigned long nr_segs, loff_t pos)
{
struct file *file = iocb->ki_filp;
- struct inode *inode = fdentry(file)->d_inode;
+ struct inode *inode = file_inode(file);
struct btrfs_root *root = BTRFS_I(inode)->root;
loff_t *ppos = &iocb->ki_pos;
u64 start_pos;
@@ -2140,7 +2140,7 @@ out:
static long btrfs_fallocate(struct file *file, int mode,
loff_t offset, loff_t len)
{
- struct inode *inode = file->f_path.dentry->d_inode;
+ struct inode *inode = file_inode(file);
struct extent_state *cached_state = NULL;
struct btrfs_root *root = BTRFS_I(inode)->root;
u64 cur_offset;
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index b88381582da..09c58a35b42 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -5124,7 +5124,7 @@ unsigned char btrfs_filetype_table[] = {
static int btrfs_real_readdir(struct file *filp, void *dirent,
filldir_t filldir)
{
- struct inode *inode = filp->f_dentry->d_inode;
+ struct inode *inode = file_inode(filp);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_item *item;
struct btrfs_dir_item *di;
@@ -7546,7 +7546,7 @@ static void btrfs_invalidatepage(struct page *page, unsigned long offset)
int btrfs_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
{
struct page *page = vmf->page;
- struct inode *inode = fdentry(vma->vm_file)->d_inode;
+ struct inode *inode = file_inode(vma->vm_file);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree;
struct btrfs_ordered_extent *ordered;
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 898c5729e7e..2c02310ff2d 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -152,7 +152,7 @@ void btrfs_inherit_iflags(struct inode *inode, struct inode *dir)
static int btrfs_ioctl_getflags(struct file *file, void __user *arg)
{
- struct btrfs_inode *ip = BTRFS_I(file->f_path.dentry->d_inode);
+ struct btrfs_inode *ip = BTRFS_I(file_inode(file));
unsigned int flags = btrfs_flags_to_ioctl(ip->flags);
if (copy_to_user(arg, &flags, sizeof(flags)))
@@ -177,7 +177,7 @@ static int check_flags(unsigned int flags)
static int btrfs_ioctl_setflags(struct file *file, void __user *arg)
{
- struct inode *inode = file->f_path.dentry->d_inode;
+ struct inode *inode = file_inode(file);
struct btrfs_inode *ip = BTRFS_I(inode);
struct btrfs_root *root = ip->root;
struct btrfs_trans_handle *trans;
@@ -310,7 +310,7 @@ static int btrfs_ioctl_setflags(struct file *file, void __user *arg)
static int btrfs_ioctl_getversion(struct file *file, int __user *arg)
{
- struct inode *inode = file->f_path.dentry->d_inode;
+ struct inode *inode = file_inode(file);
return put_user(inode->i_generation, arg);
}
@@ -1348,7 +1348,7 @@ static noinline int btrfs_ioctl_resize(struct file *file,
u64 new_size;
u64 old_size;
u64 devid = 1;
- struct btrfs_root *root = BTRFS_I(fdentry(file)->d_inode)->root;
+ struct btrfs_root *root = BTRFS_I(file_inode(file))->root;
struct btrfs_ioctl_vol_args *vol_args;
struct btrfs_trans_handle *trans;
struct btrfs_device *device = NULL;
@@ -1518,8 +1518,8 @@ static noinline int btrfs_ioctl_snap_create_transid(struct file *file,
goto out_drop_write;
}
- src_inode = src.file->f_path.dentry->d_inode;
- if (src_inode->i_sb != file->f_path.dentry->d_inode->i_sb) {
+ src_inode = file_inode(src.file);
+ if (src_inode->i_sb != file_inode(file)->i_sb) {
printk(KERN_INFO "btrfs: Snapshot src from "
"another FS\n");
ret = -EINVAL;
@@ -1611,7 +1611,7 @@ out:
static noinline int btrfs_ioctl_subvol_getflags(struct file *file,
void __user *arg)
{
- struct inode *inode = fdentry(file)->d_inode;
+ struct inode *inode = file_inode(file);
struct btrfs_root *root = BTRFS_I(inode)->root;
int ret = 0;
u64 flags = 0;
@@ -1633,7 +1633,7 @@ static noinline int btrfs_ioctl_subvol_getflags(struct file *file,
static noinline int btrfs_ioctl_subvol_setflags(struct file *file,
void __user *arg)
{
- struct inode *inode = fdentry(file)->d_inode;
+ struct inode *inode = file_inode(file);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_trans_handle *trans;
u64 root_flags;
@@ -1927,7 +1927,7 @@ static noinline int btrfs_ioctl_tree_search(struct file *file,
if (IS_ERR(args))
return PTR_ERR(args);
- inode = fdentry(file)->d_inode;
+ inode = file_inode(file);
ret = search_ioctl(inode, args);
if (ret == 0 && copy_to_user(argp, args, sizeof(*args)))
ret = -EFAULT;
@@ -2037,7 +2037,7 @@ static noinline int btrfs_ioctl_ino_lookup(struct file *file,
if (IS_ERR(args))
return PTR_ERR(args);
- inode = fdentry(file)->d_inode;
+ inode = file_inode(file);
if (args->treeid == 0)
args->treeid = BTRFS_I(inode)->root->root_key.objectid;
@@ -2236,7 +2236,7 @@ out:
static int btrfs_ioctl_defrag(struct file *file, void __user *argp)
{
- struct inode *inode = fdentry(file)->d_inode;
+ struct inode *inode = file_inode(file);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_ioctl_defrag_range_args *range;
int ret;
@@ -2289,7 +2289,7 @@ static int btrfs_ioctl_defrag(struct file *file, void __user *argp)
/* the rest are all set to zero by kzalloc */
range->len = (u64)-1;
}
- ret = btrfs_defrag_file(fdentry(file)->d_inode, file,
+ ret = btrfs_defrag_file(file_inode(file), file,
range, 0, 0);
if (ret > 0)
ret = 0;
@@ -2336,7 +2336,7 @@ out:
static long btrfs_ioctl_rm_dev(struct file *file, void __user *arg)
{
- struct btrfs_root *root = BTRFS_I(fdentry(file)->d_inode)->root;
+ struct btrfs_root *root = BTRFS_I(file_inode(file))->root;
struct btrfs_ioctl_vol_args *vol_args;
int ret;
@@ -2459,7 +2459,7 @@ out:
static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
u64 off, u64 olen, u64 destoff)
{
- struct inode *inode = fdentry(file)->d_inode;
+ struct inode *inode = file_inode(file);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct fd src_file;
struct inode *src;
@@ -2505,7 +2505,7 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
if (src_file.file->f_path.mnt != file->f_path.mnt)
goto out_fput;
- src = src_file.file->f_dentry->d_inode;
+ src = file_inode(src_file.file);
ret = -EINVAL;
if (src == inode)
@@ -2867,7 +2867,7 @@ static long btrfs_ioctl_clone_range(struct file *file, void __user *argp)
*/
static long btrfs_ioctl_trans_start(struct file *file)
{
- struct inode *inode = fdentry(file)->d_inode;
+ struct inode *inode = file_inode(file);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_trans_handle *trans;
int ret;
@@ -2907,7 +2907,7 @@ out:
static long btrfs_ioctl_default_subvol(struct file *file, void __user *argp)
{
- struct inode *inode = fdentry(file)->d_inode;
+ struct inode *inode = file_inode(file);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_root *new_root;
struct btrfs_dir_item *di;
@@ -3131,7 +3131,7 @@ out:
*/
long btrfs_ioctl_trans_end(struct file *file)
{
- struct inode *inode = fdentry(file)->d_inode;
+ struct inode *inode = file_inode(file);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_trans_handle *trans;
@@ -3193,7 +3193,7 @@ static noinline long btrfs_ioctl_wait_sync(struct btrfs_root *root,
static long btrfs_ioctl_scrub(struct file *file, void __user *arg)
{
- struct btrfs_root *root = BTRFS_I(fdentry(file)->d_inode)->root;
+ struct btrfs_root *root = BTRFS_I(file_inode(file))->root;
struct btrfs_ioctl_scrub_args *sa;
int ret;
@@ -3484,7 +3484,7 @@ void update_ioctl_balance_args(struct btrfs_fs_info *fs_info, int lock,
static long btrfs_ioctl_balance(struct file *file, void __user *arg)
{
- struct btrfs_root *root = BTRFS_I(fdentry(file)->d_inode)->root;
+ struct btrfs_root *root = BTRFS_I(file_inode(file))->root;
struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_ioctl_balance_args *bargs;
struct btrfs_balance_control *bctl;
@@ -3674,7 +3674,7 @@ out:
static long btrfs_ioctl_quota_ctl(struct file *file, void __user *arg)
{
- struct btrfs_root *root = BTRFS_I(fdentry(file)->d_inode)->root;
+ struct btrfs_root *root = BTRFS_I(file_inode(file))->root;
struct btrfs_ioctl_quota_ctl_args *sa;
struct btrfs_trans_handle *trans = NULL;
int ret;
@@ -3733,7 +3733,7 @@ drop_write:
static long btrfs_ioctl_qgroup_assign(struct file *file, void __user *arg)
{
- struct btrfs_root *root = BTRFS_I(fdentry(file)->d_inode)->root;
+ struct btrfs_root *root = BTRFS_I(file_inode(file))->root;
struct btrfs_ioctl_qgroup_assign_args *sa;
struct btrfs_trans_handle *trans;
int ret;
@@ -3780,7 +3780,7 @@ drop_write:
static long btrfs_ioctl_qgroup_create(struct file *file, void __user *arg)
{
- struct btrfs_root *root = BTRFS_I(fdentry(file)->d_inode)->root;
+ struct btrfs_root *root = BTRFS_I(file_inode(file))->root;
struct btrfs_ioctl_qgroup_create_args *sa;
struct btrfs_trans_handle *trans;
int ret;
@@ -3831,7 +3831,7 @@ drop_write:
static long btrfs_ioctl_qgroup_limit(struct file *file, void __user *arg)
{
- struct btrfs_root *root = BTRFS_I(fdentry(file)->d_inode)->root;
+ struct btrfs_root *root = BTRFS_I(file_inode(file))->root;
struct btrfs_ioctl_qgroup_limit_args *sa;
struct btrfs_trans_handle *trans;
int ret;
@@ -3881,7 +3881,7 @@ static long btrfs_ioctl_set_received_subvol(struct file *file,
void __user *arg)
{
struct btrfs_ioctl_received_subvol_args *sa = NULL;
- struct inode *inode = fdentry(file)->d_inode;
+ struct inode *inode = file_inode(file);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct btrfs_root_item *root_item = &root->root_item;
struct btrfs_trans_handle *trans;
@@ -4020,7 +4020,7 @@ out_unlock:
long btrfs_ioctl(struct file *file, unsigned int
cmd, unsigned long arg)
{
- struct btrfs_root *root = BTRFS_I(fdentry(file)->d_inode)->root;
+ struct btrfs_root *root = BTRFS_I(file_inode(file))->root;
void __user *argp = (void __user *)arg;
switch (cmd) {
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index 3ebe87977aa..b67171e6d68 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -3505,7 +3505,7 @@ out:
}
/*
- * hepler to find all tree blocks that reference a given data extent
+ * helper to find all tree blocks that reference a given data extent
*/
static noinline_for_stack
int add_data_references(struct reloc_control *rc,
@@ -3599,7 +3599,7 @@ int add_data_references(struct reloc_control *rc,
}
/*
- * hepler to find next unprocessed extent
+ * helper to find next unprocessed extent
*/
static noinline_for_stack
int find_next_extent(struct btrfs_trans_handle *trans,
diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index ed897dc1135..c85e7c6b459 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -4576,7 +4576,7 @@ long btrfs_ioctl_send(struct file *mnt_file, void __user *arg_)
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- send_root = BTRFS_I(fdentry(mnt_file)->d_inode)->root;
+ send_root = BTRFS_I(file_inode(mnt_file))->root;
fs_info = send_root->fs_info;
arg = memdup_user(arg_, sizeof(*arg));
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 68a29a1ea06..f6b88595f85 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -1558,6 +1558,7 @@ static struct file_system_type btrfs_fs_type = {
.kill_sb = btrfs_kill_super,
.fs_flags = FS_REQUIRES_DEV,
};
+MODULE_ALIAS_FS("btrfs");
/*
* used by btrfsctl to scan devices when no FS is mounted
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index c4a1531c52d..50767bbaad6 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -123,7 +123,6 @@ loop:
* to redo the trans_no_join checks above
*/
kmem_cache_free(btrfs_transaction_cachep, cur_trans);
- cur_trans = fs_info->running_transaction;
goto loop;
} else if (test_bit(BTRFS_FS_STATE_ERROR, &fs_info->fs_state)) {
spin_unlock(&fs_info->trans_lock);