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| author | Jules Irenge <jbi.octave@gmail.com> | 2020-04-06 20:08:06 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-04-07 10:43:41 -0700 |
| commit | 77337edee7598d82fb5acf66cb91a5b3f0c46add (patch) | |
| tree | 61eb08cffa10ce02a28930fa458f1e371106ba79 /mm | |
| parent | bb8b93b5b65130138d3c80f3136af721863f561a (diff) | |
| download | lwn-77337edee7598d82fb5acf66cb91a5b3f0c46add.tar.gz lwn-77337edee7598d82fb5acf66cb91a5b3f0c46add.zip | |
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')
| -rw-r--r-- | mm/compaction.c | 1 |
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) { |