diff mbox series

[05/30] mm/compaction: Add missing annotation for compact_lock_irqsave

Message ID 20200214204741.94112-6-jbi.octave@gmail.com (mailing list archive)
State New, archived
Headers show
Series None | expand

Commit Message

Jules Irenge Feb. 14, 2020, 8:47 p.m. UTC 
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>
---
 mm/compaction.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/mm/compaction.c b/mm/compaction.c
index 672d3c78c6ab..81190fe22200 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) {