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| author | David Woodhouse <David.Woodhouse@intel.com> | 2008-08-19 16:49:35 +0100 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2008-09-25 11:04:06 -0400 |
| commit | 76fcef19c40328499a2f6d59d76b72fd03d2cc82 (patch) | |
| tree | 1e9394a1cb42ae021f4eedac7954d69b23b062f4 /fs/btrfs/super.c | |
| parent | 87acb4ef9b2991e1c453b78d71bce2ef994ef1ff (diff) | |
| download | linux-76fcef19c40328499a2f6d59d76b72fd03d2cc82.tar.gz | |
Btrfs: Reinstate '-osubvol=.' option to mount entire tree
Date: Tue, 19 Aug 2008 16:49:35 +0100 This disappeared when I removed the special case for '.' in btrfs_lookup() Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/super.c')
| -rw-r--r-- | fs/btrfs/super.c | 34 |
1 files changed, 19 insertions, 15 deletions
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 55f4d00fda3a..f7b3eac7ac6d 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -451,21 +451,25 @@ static int btrfs_get_sb(struct file_system_type *fs_type, int flags, s->s_flags |= MS_ACTIVE; } - mutex_lock(&s->s_root->d_inode->i_mutex); - root = lookup_one_len(subvol_name, s->s_root, strlen(subvol_name)); - mutex_unlock(&s->s_root->d_inode->i_mutex); - if (IS_ERR(root)) { - up_write(&s->s_umount); - deactivate_super(s); - error = PTR_ERR(root); - goto error; - } - if (!root->d_inode) { - dput(root); - up_write(&s->s_umount); - deactivate_super(s); - error = -ENXIO; - goto error; + if (!strcmp(subvol_name, ".")) + root = dget(s->s_root); + else { + mutex_lock(&s->s_root->d_inode->i_mutex); + root = lookup_one_len(subvol_name, s->s_root, strlen(subvol_name)); + mutex_unlock(&s->s_root->d_inode->i_mutex); + if (IS_ERR(root)) { + up_write(&s->s_umount); + deactivate_super(s); + error = PTR_ERR(root); + goto error; + } + if (!root->d_inode) { + dput(root); + up_write(&s->s_umount); + deactivate_super(s); + error = -ENXIO; + goto error; + } } mnt->mnt_sb = s; |