From 17130a65f0cd71f9c26bec8f0f097fc61013b6f8 Mon Sep 17 00:00:00 2001 From: Nikolay Borisov Date: Thu, 14 Oct 2021 10:03:11 +0300 Subject: [PATCH] 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 Signed-off-by: Nikolay Borisov Reviewed-by: David Sterba Signed-off-by: David Sterba --- fs/btrfs/block-group.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/fs/btrfs/block-group.c b/fs/btrfs/block-group.c index 444e9c89ff3e..6ab864655090 100644 --- 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,