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authorAl Viro <viro@zeniv.linux.org.uk>2011-11-17 07:56:28 +0100
committerAl Viro <viro@zeniv.linux.org.uk>2012-01-09 01:34:41 +0100
commit59553edf110e5576d91be9dd5bd53d110e0d0290 (patch)
tree80db6c318f2cd766422ce1024dbb044364ede957 /fs
parentbtrfs: make free_fs_info() call ->kill_sb() unconditional (diff)
downloadlinux-59553edf110e5576d91be9dd5bd53d110e0d0290.tar.xz
linux-59553edf110e5576d91be9dd5bd53d110e0d0290.zip
btrfs: consolidate failure exits in btrfs_mount() a bit
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs')
-rw-r--r--fs/btrfs/super.c21
1 files changed, 5 insertions, 16 deletions
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index f628a6a79ca6..15c8ae571e40 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -630,6 +630,7 @@ static int btrfs_fill_super(struct super_block *sb,
save_mount_options(sb, data);
cleancache_init_fs(sb);
+ sb->s_flags |= MS_ACTIVE;
return 0;
fail_close:
@@ -929,14 +930,10 @@ static struct dentry *btrfs_mount(struct file_system_type *fs_type, int flags,
}
if (s->s_root) {
- if ((flags ^ s->s_flags) & MS_RDONLY) {
- deactivate_locked_super(s);
- error = -EBUSY;
- goto error_close_devices;
- }
-
btrfs_close_devices(fs_devices);
free_fs_info(fs_info);
+ if ((flags ^ s->s_flags) & MS_RDONLY)
+ error = -EBUSY;
} else {
char b[BDEVNAME_SIZE];
@@ -945,19 +942,11 @@ static struct dentry *btrfs_mount(struct file_system_type *fs_type, int flags,
btrfs_sb(s)->fs_info->bdev_holder = fs_type;
error = btrfs_fill_super(s, fs_devices, data,
flags & MS_SILENT ? 1 : 0);
- if (error) {
- deactivate_locked_super(s);
- return ERR_PTR(error);
- }
-
- s->s_flags |= MS_ACTIVE;
}
- root = get_default_root(s, subvol_objectid);
- if (IS_ERR(root)) {
+ root = !error ? get_default_root(s, subvol_objectid) : ERR_PTR(error);
+ if (IS_ERR(root))
deactivate_locked_super(s);
- return root;
- }
return root;