kernel/mutex: mutex_is_locked can be boolean
Make mutex_is_locked return bool due to this particular function only using either one or zero as its return value. No functional change. Link: http://lkml.kernel.org/r/1513266622-15860-7-git-send-email-baiyaowei@cmss.chinamobile.com Signed-off-by: Yaowei Bai <baiyaowei@cmss.chinamobile.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -138,9 +138,9 @@ extern void __mutex_init(struct mutex *lock, const char *name,
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* mutex_is_locked - is the mutex locked
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* @lock: the mutex to be queried
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*
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* Returns 1 if the mutex is locked, 0 if unlocked.
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* Returns true if the mutex is locked, false if unlocked.
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*/
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static inline int mutex_is_locked(struct mutex *lock)
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static inline bool mutex_is_locked(struct mutex *lock)
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{
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/*
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* XXX think about spin_is_locked
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