btrfs: remove spurious unlock/lock of unused_bgs_lock

Since both unused block groups and reclaim bgs lists are protected by unused_bgs_lock then free them in the same critical section without doing an extra unlock/lock pair. Reviewed-by: Josef Bacik <[email protected]> Signed-off-by: Nikolay Borisov <[email protected]> Reviewed-by: David Sterba <[email protected]> Signed-off-by: David Sterba <[email protected]>
grate-driver · Nov 15, 2021 · a88d33b · a88d33b
1 parent 5bf7d01
commit a88d33b
Showing 1 changed file with 0 additions and 2 deletions.
diff --git a/fs/btrfs/block-group.c b/fs/btrfs/block-group.c
@@ -3911,9 +3911,7 @@ int btrfs_free_block_groups(struct btrfs_fs_info *info)
 		list_del_init(&block_group->bg_list);
 		btrfs_put_block_group(block_group);
 	}
-	spin_unlock(&info->unused_bgs_lock);
 
-	spin_lock(&info->unused_bgs_lock);
 	while (!list_empty(&info->reclaim_bgs)) {
 		block_group = list_first_entry(&info->reclaim_bgs,
 					       struct btrfs_block_group,