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authorJules Irenge <jbi.octave@gmail.com>2020-04-07 06:08:06 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2020-04-07 20:43:41 +0300
commit77337edee7598d82fb5acf66cb91a5b3f0c46add (patch)
tree61eb08cffa10ce02a28930fa458f1e371106ba79 /mm/compaction.c
parentbb8b93b5b65130138d3c80f3136af721863f561a (diff)
downloadlinux-77337edee7598d82fb5acf66cb91a5b3f0c46add.tar.xz
mm/compaction: add missing annotation for compact_lock_irqsave
Sparse reports a warning at compact_lock_irqsave() warning: context imbalance in compact_lock_irqsave() - wrong count at exit The root cause is the missing annotation at compact_lock_irqsave() Add the missing __acquires(lock) annotation. Signed-off-by: Jules Irenge <jbi.octave@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Link: http://lkml.kernel.org/r/20200214204741.94112-6-jbi.octave@gmail.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/compaction.c')
-rw-r--r--mm/compaction.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/compaction.c b/mm/compaction.c
index 46af63eb8212..46f0fcc93081 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -481,6 +481,7 @@ static bool test_and_set_skip(struct compact_control *cc, struct page *page,
*/
static bool compact_lock_irqsave(spinlock_t *lock, unsigned long *flags,
struct compact_control *cc)
+ __acquires(lock)
{
/* Track if the lock is contended in async mode */
if (cc->mode == MIGRATE_ASYNC && !cc->contended) {