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authorQu Wenruo <wqu@suse.com>2019-04-29 14:03:32 +0800
committerDavid Sterba <dsterba@suse.com>2019-07-01 13:34:58 +0200
commit0185f364cb65855cdf5dfd0de11f8f9622940250 (patch)
treef9441b78317594af663f11c85ebb6a03a8b0bd21 /fs/btrfs
parentcff8267228c14e56ded8407787d4328603423b3e (diff)
btrfs: extent-tree: Add lockdep assert when updating space info
Just add a safe net for btrfs_space_info member updating. Signed-off-by: Qu Wenruo <wqu@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs')
-rw-r--r--fs/btrfs/extent-tree.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index af73264e33a5..f37daddbeabe 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -58,6 +58,7 @@ enum {
static inline void update_##name(struct btrfs_space_info *sinfo, \
s64 bytes) \
{ \
+ lockdep_assert_held(&sinfo->lock); \
if (bytes < 0 && sinfo->name < -bytes) { \
WARN_ON(1); \
sinfo->name = 0; \