Btrfs: cleanup: don't check the same thing twice

btrfs_read_fs_root_no_name() already checks if btrfs_root_refs()
is zero and returns ENOENT in this case. There is no need to do
it again in six places.

Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>

1 files changed, 0 insertions, 10 deletions

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index c931a4dbd031..3817c1e49035 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -2262,11 +2262,6 @@ static noinline int relink_extent_backref(struct btrfs_path *path,
                         return 0;
                 return PTR_ERR(root);
         }
-        if (btrfs_root_refs(&root->root_item) == 0) {
-                srcu_read_unlock(&fs_info->subvol_srcu, index);
-                /* parse ENOENT to 0 */
-                return 0;
-        }
 
         /* step 2: get inode */
         key.objectid = backref->inum;
@@ -4821,11 +4816,6 @@ static int fixup_tree_root_location(struct btrfs_root *root,
                 goto out;
         }
 
-        if (btrfs_root_refs(&new_root->root_item) == 0) {
-                err = -ENOENT;
-                goto out;
-        }
-
         *sub_root = new_root;
         location->objectid = btrfs_root_dirid(&new_root->root_item);
         location->type = BTRFS_INODE_ITEM_KEY;