Commit 0185f364 authored Apr 29, 2019 by Qu Wenruo Committed by David Sterba Jul 01, 2019

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>

parent cff82672

fs/btrfs/extent-tree.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -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; \