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>
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@ -481,6 +481,7 @@ static bool test_and_set_skip(struct compact_control *cc, struct page *page,
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*/
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static bool compact_lock_irqsave(spinlock_t *lock, unsigned long *flags,
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struct compact_control *cc)
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__acquires(lock)
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{
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/* Track if the lock is contended in async mode */
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if (cc->mode == MIGRATE_ASYNC && !cc->contended) {
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