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authorSu Yue <suy.fnst@cn.fujitsu.com>2018-11-28 11:21:12 +0800
committerDavid Sterba <dsterba@suse.com>2019-07-01 13:34:55 +0200
commit8f63a84051e8e42aa99291197e4adae67241a705 (patch)
tree737bd32cbd92ee045380bdee5ad4a8e5d917cb8b
parent4c094c33c9ed4b8d0d814bd1d7ff78e123d15d00 (diff)
btrfs: switch order of unlocks of space_info and bg in do_trimming()
In function do_trimming(), block_group->lock should be unlocked first, as the locks should be released in the reverse order. This does not cause problems but should follow the best practices. Reviewed-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: Su Yue <suy.fnst@cn.fujitsu.com> Reviewed-by: David Sterba <dsterba@suse.com> [ update changelog ] Signed-off-by: David Sterba <dsterba@suse.com>
-rw-r--r--fs/btrfs/free-space-cache.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index f74dc259307b..9a76e7671938 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -3166,8 +3166,8 @@ static int do_trimming(struct btrfs_block_group_cache *block_group,
space_info->bytes_readonly += reserved_bytes;
block_group->reserved -= reserved_bytes;
space_info->bytes_reserved -= reserved_bytes;
- spin_unlock(&space_info->lock);
spin_unlock(&block_group->lock);
+ spin_unlock(&space_info->lock);
}
return ret;