diff options
Diffstat (limited to 'fs')
60 files changed, 391 insertions, 352 deletions
diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c index 61c599b4a1e..872943004e5 100644 --- a/fs/9p/vfs_super.c +++ b/fs/9p/vfs_super.c @@ -99,12 +99,13 @@ v9fs_fill_super(struct super_block *sb, struct v9fs_session_info *v9ses, * @flags: mount flags * @dev_name: device name that was mounted * @data: mount options + * @mnt: mountpoint record to be instantiated * */ -static struct super_block *v9fs_get_sb(struct file_system_type - *fs_type, int flags, - const char *dev_name, void *data) +static int v9fs_get_sb(struct file_system_type *fs_type, int flags, + const char *dev_name, void *data, + struct vfsmount *mnt) { struct super_block *sb = NULL; struct v9fs_fcall *fcall = NULL; @@ -123,17 +124,19 @@ static struct super_block *v9fs_get_sb(struct file_system_type v9ses = kzalloc(sizeof(struct v9fs_session_info), GFP_KERNEL); if (!v9ses) - return ERR_PTR(-ENOMEM); + return -ENOMEM; if ((newfid = v9fs_session_init(v9ses, dev_name, data)) < 0) { dprintk(DEBUG_ERROR, "problem initiating session\n"); - sb = ERR_PTR(newfid); + retval = newfid; goto out_free_session; } sb = sget(fs_type, NULL, v9fs_set_super, v9ses); - if (IS_ERR(sb)) + if (IS_ERR(sb)) { + retval = PTR_ERR(sb); goto out_close_session; + } v9fs_fill_super(sb, v9ses, flags); inode = v9fs_get_inode(sb, S_IFDIR | mode); @@ -184,19 +187,19 @@ static struct super_block *v9fs_get_sb(struct file_system_type goto put_back_sb; } - return sb; + return simple_set_mnt(mnt, sb); out_close_session: v9fs_session_close(v9ses); out_free_session: kfree(v9ses); - return sb; + return retval; put_back_sb: /* deactivate_super calls v9fs_kill_super which will frees the rest */ up_write(&sb->s_umount); deactivate_super(sb); - return ERR_PTR(retval); + return retval; } /** diff --git a/fs/adfs/super.c b/fs/adfs/super.c index 252abda0d20..1b58a9b7f6a 100644 --- a/fs/adfs/super.c +++ b/fs/adfs/super.c @@ -470,10 +470,11 @@ error: return -EINVAL; } -static struct super_block *adfs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data) +static int adfs_get_sb(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data, struct vfsmount *mnt) { - return get_sb_bdev(fs_type, flags, dev_name, data, adfs_fill_super); + return get_sb_bdev(fs_type, flags, dev_name, data, adfs_fill_super, + mnt); } static struct file_system_type adfs_fs_type = { diff --git a/fs/affs/super.c b/fs/affs/super.c index 4d7e5b19e5c..6a52e787540 100644 --- a/fs/affs/super.c +++ b/fs/affs/super.c @@ -524,10 +524,11 @@ affs_statfs(struct super_block *sb, struct kstatfs *buf) return 0; } -static struct super_block *affs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data) +static int affs_get_sb(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data, struct vfsmount *mnt) { - return get_sb_bdev(fs_type, flags, dev_name, data, affs_fill_super); + return get_sb_bdev(fs_type, flags, dev_name, data, affs_fill_super, + mnt); } static struct file_system_type affs_fs_type = { diff --git a/fs/afs/super.c b/fs/afs/super.c index 53c56e7231a..82468df0ba5 100644 --- a/fs/afs/super.c +++ b/fs/afs/super.c @@ -38,9 +38,9 @@ struct afs_mount_params { static void afs_i_init_once(void *foo, kmem_cache_t *cachep, unsigned long flags); -static struct super_block *afs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, - void *data); +static int afs_get_sb(struct file_system_type *fs_type, + int flags, const char *dev_name, + void *data, struct vfsmount *mnt); static struct inode *afs_alloc_inode(struct super_block *sb); @@ -294,10 +294,11 @@ static int afs_fill_super(struct super_block *sb, void *data, int silent) * get an AFS superblock * - TODO: don't use get_sb_nodev(), but rather call sget() directly */ -static struct super_block *afs_get_sb(struct file_system_type *fs_type, - int flags, - const char *dev_name, - void *options) +static int afs_get_sb(struct file_system_type *fs_type, + int flags, + const char *dev_name, + void *options, + struct vfsmount *mnt) { struct afs_mount_params params; struct super_block *sb; @@ -311,7 +312,7 @@ static struct super_block *afs_get_sb(struct file_system_type *fs_type, ret = afscm_start(); if (ret < 0) { _leave(" = %d", ret); - return ERR_PTR(ret); + return ret; } /* parse the options */ @@ -348,18 +349,19 @@ static struct super_block *afs_get_sb(struct file_system_type *fs_type, goto error; } sb->s_flags |= MS_ACTIVE; + simple_set_mnt(mnt, sb); afs_put_volume(params.volume); afs_put_cell(params.default_cell); - _leave(" = %p", sb); - return sb; + _leave(" = 0 [%p]", 0, sb); + return 0; error: afs_put_volume(params.volume); afs_put_cell(params.default_cell); afscm_stop(); _leave(" = %d", ret); - return ERR_PTR(ret); + return ret; } /* end afs_get_sb() */ /*****************************************************************************/ diff --git a/fs/autofs/init.c b/fs/autofs/init.c index b977ece69f0..aca12375240 100644 --- a/fs/autofs/init.c +++ b/fs/autofs/init.c @@ -14,10 +14,10 @@ #include <linux/init.h> #include "autofs_i.h" -static struct super_block *autofs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data) +static int autofs_get_sb(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data, struct vfsmount *mnt) { - return get_sb_nodev(fs_type, flags, data, autofs_fill_super); + return get_sb_nodev(fs_type, flags, data, autofs_fill_super, mnt); } static struct file_system_type autofs_fs_type = { diff --git a/fs/autofs4/init.c b/fs/autofs4/init.c index acecec8578c..5d9193332be 100644 --- a/fs/autofs4/init.c +++ b/fs/autofs4/init.c @@ -14,10 +14,10 @@ #include <linux/init.h> #include "autofs_i.h" -static struct super_block *autofs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data) +static int autofs_get_sb(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data, struct vfsmount *mnt) { - return get_sb_nodev(fs_type, flags, data, autofs4_fill_super); + return get_sb_nodev(fs_type, flags, data, autofs4_fill_super, mnt); } static struct file_system_type autofs_fs_type = { diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c index 68ebd10f345..6ed07a5f10c 100644 --- a/fs/befs/linuxvfs.c +++ b/fs/befs/linuxvfs.c @@ -899,11 +899,12 @@ befs_statfs(struct super_block *sb, struct kstatfs *buf) return 0; } -static struct super_block * +static int befs_get_sb(struct file_system_type *fs_type, int flags, const char *dev_name, - void *data) + void *data, struct vfsmount *mnt) { - return get_sb_bdev(fs_type, flags, dev_name, data, befs_fill_super); + return get_sb_bdev(fs_type, flags, dev_name, data, befs_fill_super, + mnt); } static struct file_system_type befs_fs_type = { diff --git a/fs/bfs/inode.c b/fs/bfs/inode.c index 55a7a78332f..e7da03f63a5 100644 --- a/fs/bfs/inode.c +++ b/fs/bfs/inode.c @@ -410,10 +410,10 @@ out: return -EINVAL; } -static struct super_block *bfs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data) +static int bfs_get_sb(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data, struct vfsmount *mnt) { - return get_sb_bdev(fs_type, flags, dev_name, data, bfs_fill_super); + return get_sb_bdev(fs_type, flags, dev_name, data, bfs_fill_super, mnt); } static struct file_system_type bfs_fs_type = { diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c index 599f36fd0f6..07a4996cca3 100644 --- a/fs/binfmt_misc.c +++ b/fs/binfmt_misc.c @@ -739,10 +739,10 @@ static int bm_fill_super(struct super_block * sb, void * data, int silent) return err; } -static struct super_block *bm_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data) +static int bm_get_sb(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data, struct vfsmount *mnt) { - return get_sb_single(fs_type, flags, data, bm_fill_super); + return get_sb_single(fs_type, flags, data, bm_fill_super, mnt); } static struct linux_binfmt misc_format = { diff --git a/fs/block_dev.c b/fs/block_dev.c index 44aaba202f7..028d9fb9c2d 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -300,10 +300,10 @@ static struct super_operations bdev_sops = { .clear_inode = bdev_clear_inode, }; -static struct super_block *bd_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data) +static int bd_get_sb(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data, struct vfsmount *mnt) { - return get_sb_pseudo(fs_type, "bdev:", &bdev_sops, 0x62646576); + return get_sb_pseudo(fs_type, "bdev:", &bdev_sops, 0x62646576, mnt); } static struct file_system_type bd_type = { diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index c262d8874ce..08b35801dfe 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -460,9 +460,9 @@ struct super_operations cifs_super_ops = { .remount_fs = cifs_remount, }; -static struct super_block * +static int cifs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data) + int flags, const char *dev_name, void *data, struct vfsmount *mnt) { int rc; struct super_block *sb = sget(fs_type, NULL, set_anon_super, NULL); @@ -470,7 +470,7 @@ cifs_get_sb(struct file_system_type *fs_type, cFYI(1, ("Devname: %s flags: %d ", dev_name, flags)); if (IS_ERR(sb)) - return sb; + return PTR_ERR(sb); sb->s_flags = flags; @@ -478,10 +478,10 @@ cifs_get_sb(struct file_system_type *fs_type, if (rc) { up_write(&sb->s_umount); deactivate_super(sb); - return ERR_PTR(rc); + return rc; } sb->s_flags |= MS_ACTIVE; - return sb; + return simple_set_mnt(mnt, sb); } static ssize_t cifs_file_writev(struct file *file, const struct iovec *iov, diff --git a/fs/coda/inode.c b/fs/coda/inode.c index ada1a81df6b..cba70201567 100644 --- a/fs/coda/inode.c +++ b/fs/coda/inode.c @@ -307,10 +307,10 @@ static int coda_statfs(struct super_block *sb, struct kstatfs *buf) /* init_coda: used by filesystems.c to register coda */ -static struct super_block *coda_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data) +static int coda_get_sb(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data, struct vfsmount *mnt) { - return get_sb_nodev(fs_type, flags, data, coda_fill_super); + return get_sb_nodev(fs_type, flags, data, coda_fill_super, mnt); } struct file_system_type coda_fs_type = { diff --git a/fs/configfs/mount.c b/fs/configfs/mount.c index f920d30478e..94dab7bdd85 100644 --- a/fs/configfs/mount.c +++ b/fs/configfs/mount.c @@ -103,10 +103,10 @@ static int configfs_fill_super(struct super_block *sb, void *data, int silent) return 0; } -static struct super_block *configfs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data) +static int configfs_get_sb(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data, struct vfsmount *mnt) { - return get_sb_single(fs_type, flags, data, configfs_fill_super); + return get_sb_single(fs_type, flags, data, configfs_fill_super, mnt); } static struct file_system_type configfs_fs_type = { diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c index 9efcc3a164e..37a91a153aa 100644 --- a/fs/cramfs/inode.c +++ b/fs/cramfs/inode.c @@ -528,10 +528,11 @@ static struct super_operations cramfs_ops = { .statfs = cramfs_statfs, }; -static struct super_block *cramfs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data) +static int cramfs_get_sb(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data, struct vfsmount *mnt) { - return get_sb_bdev(fs_type, flags, dev_name, data, cramfs_fill_super); + return get_sb_bdev(fs_type, flags, dev_name, data, cramfs_fill_super, + mnt); } static struct file_system_type cramfs_fs_type = { diff --git a/fs/dcache.c b/fs/dcache.c index 59dbc92c207..313b54b2b8f 100644 --- a/fs/dcache.c +++ b/fs/dcache.c @@ -687,46 +687,6 @@ void shrink_dcache_parent(struct dentry * parent) prune_dcache(found, parent->d_sb); } -/** - * shrink_dcache_anon - further prune the cache - * @head: head of d_hash list of dentries to prune - * - * Prune the dentries that are anonymous - * - * parsing d_hash list does not hlist_for_each_entry_rcu() as it - * done under dcache_lock. - * - */ -void shrink_dcache_anon(struct super_block *sb) -{ - struct hlist_node *lp; - struct hlist_head *head = &sb->s_anon; - int found; - do { - found = 0; - spin_lock(&dcache_lock); - hlist_for_each(lp, head) { - struct dentry *this = hlist_entry(lp, struct dentry, d_hash); - if (!list_empty(&this->d_lru)) { - dentry_stat.nr_unused--; - list_del_init(&this->d_lru); - } - - /* - * move only zero ref count dentries to the end - * of the unused list for prune_dcache - */ - if (!atomic_read(&this->d_count)) { - list_add_tail(&this->d_lru, &dentry_unused); - dentry_stat.nr_unused++; - found++; - } - } - spin_unlock(&dcache_lock); - prune_dcache(found, sb); - } while(found); -} - /* * Scan `nr' dentries and return the number which remain. * diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c index b55b4ea9a67..440128ebef3 100644 --- a/fs/debugfs/inode.c +++ b/fs/debugfs/inode.c @@ -111,11 +111,11 @@ static int debug_fill_super(struct super_block *sb, void *data, int silent) return simple_fill_super(sb, DEBUGFS_MAGIC, debug_files); } -static struct super_block *debug_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, - void *data) +static int debug_get_sb(struct file_system_type *fs_type, + int flags, const char *dev_name, + void *data, struct vfsmount *mnt) { - return get_sb_single(fs_type, flags, data, debug_fill_super); + return get_sb_single(fs_type, flags, data, debug_fill_super, mnt); } static struct file_system_type debug_fs_type = { diff --git a/fs/devfs/base.c b/fs/devfs/base.c index 52f5059c4f3..51a97f13274 100644 --- a/fs/devfs/base.c +++ b/fs/devfs/base.c @@ -2549,11 +2549,11 @@ static int devfs_fill_super(struct super_block *sb, void *data, int silent) return -EINVAL; } /* End Function devfs_fill_super */ -static struct super_block *devfs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, - void *data) +static int devfs_get_sb(struct file_system_type *fs_type, + int flags, const char *dev_name, + void *data, struct vfsmount *mnt) { - return get_sb_single(fs_type, flags, data, devfs_fill_super); + return get_sb_single(fs_type, flags, data, devfs_fill_super, mnt); } static struct file_system_type devfs_fs_type = { diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c index 14c5620b5ca..f7aef5bb584 100644 --- a/fs/devpts/inode.c +++ b/fs/devpts/inode.c @@ -130,10 +130,10 @@ fail: return -ENOMEM; } -static struct super_block *devpts_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data) +static int devpts_get_sb(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data, struct vfsmount *mnt) { - return get_sb_single(fs_type, flags, data, devpts_fill_super); + return get_sb_single(fs_type, flags, data, devpts_fill_super, mnt); } static struct file_system_type devpts_fs_type = { diff --git a/fs/efs/super.c b/fs/efs/super.c index dff623e3ddb..1ba5e14f879 100644 --- a/fs/efs/super.c +++ b/fs/efs/super.c @@ -18,10 +18,10 @@ static int efs_statfs(struct super_block *s, struct kstatfs *buf); static int efs_fill_super(struct super_block *s, void *d, int silent); -static struct super_block *efs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data) +static int efs_get_sb(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data, struct vfsmount *mnt) { - return get_sb_bdev(fs_type, flags, dev_name, data, efs_fill_super); + return get_sb_bdev(fs_type, flags, dev_name, data, efs_fill_super, mnt); } static struct file_system_type efs_fs_type = { diff --git a/fs/eventpoll.c b/fs/eventpoll.c index 2695337d4d6..08e7e6a555c 100644 --- a/fs/eventpoll.c +++ b/fs/eventpoll.c @@ -268,9 +268,9 @@ static int ep_poll(struct eventpoll *ep, struct epoll_event __user *events, int maxevents, long timeout); static int eventpollfs_delete_dentry(struct dentry *dentry); static struct inode *ep_eventpoll_inode(void); -static struct super_block *eventpollfs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, - void *data); +static int eventpollfs_get_sb(struct file_system_type *fs_type, + int flags, const char *dev_name, + void *data, struct vfsmount *mnt); /* * This semaphore is used to serialize ep_free() and eventpoll_release_file(). @@ -1595,11 +1595,12 @@ eexit_1: } -static struct super_block * +static int eventpollfs_get_sb(struct file_system_type *fs_type, int flags, - const char *dev_name, void *data) + const char *dev_name, void *data, struct vfsmount *mnt) { - return get_sb_pseudo(fs_type, "eventpoll:", NULL, EVENTPOLLFS_MAGIC); + return get_sb_pseudo(fs_type, "eventpoll:", NULL, EVENTPOLLFS_MAGIC, + mnt); } diff --git a/fs/ext2/super.c b/fs/ext2/super.c index 7e30bae174e..a4dfffac596 100644 --- a/fs/ext2/super.c +++ b/fs/ext2/super.c @@ -1087,10 +1087,10 @@ static int ext2_statfs (struct super_block * sb, struct kstatfs * buf) return 0; } -static struct super_block *ext2_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data) +static int ext2_get_sb(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data, struct vfsmount *mnt) { - return get_sb_bdev(fs_type, flags, dev_name, data, ext2_fill_super); + return get_sb_bdev(fs_type, flags, dev_name, data, ext2_fill_super, mnt); } #ifdef CONFIG_QUOTA diff --git a/fs/ext3/super.c b/fs/ext3/super.c index f8a5266ea1f..657f8e73b62 100644 --- a/fs/ext3/super.c +++ b/fs/ext3/super.c @@ -2646,10 +2646,10 @@ out: #endif -static struct super_block *ext3_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data) +static int ext3_get_sb(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data, struct vfsmount *mnt) { - return get_sb_bdev(fs_type, flags, dev_name, data, ext3_fill_super); + return get_sb_bdev(fs_type, flags, dev_name, data, ext3_fill_super, mnt); } static struct file_system_type ext3_fs_type = { diff --git a/fs/freevxfs/vxfs_super.c b/fs/freevxfs/vxfs_super.c index b44c916d24a..d76eeaafbde 100644 --- a/fs/freevxfs/vxfs_super.c +++ b/fs/freevxfs/vxfs_super.c @@ -241,10 +241,11 @@ out: /* * The usual module blurb. */ -static struct super_block *vxfs_get_sb(struct file_system_type *fs_type, - int flags, const char *dev_name, void *data) +static int vxfs_get_sb(struct file_system_type *fs_type, + int flags, const char *dev_name, void *data, struct vfsmount *mnt) { - return get_sb_bdev(fs_type, flags, dev_name, data, vxfs_fill_super); + return get_sb_bdev(fs_type, flags, dev_name, data, vxfs_fill_super, + mnt); } static struct file_system_type vxfs_fs_type = { diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index 7627022446b..c91f0a50aad 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -569,11 +569,11 @@ static int fuse_fill_super(struct super_block *sb, void *data, int silent) return err; } -stati |