From: Yaowei Bai <baiyaowei@xxxxxxxxxxxxxxxxxxxx> Subject: 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@xxxxxxxxxxxxxxxxxxxx Signed-off-by: Yaowei Bai <baiyaowei@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- include/linux/mutex.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff -puN include/linux/mutex.h~kernel-mutex-mutex_is_locked-can-be-boolean include/linux/mutex.h --- a/include/linux/mutex.h~kernel-mutex-mutex_is_locked-can-be-boolean +++ a/include/linux/mutex.h @@ -138,9 +138,9 @@ extern void __mutex_init(struct mutex *l * mutex_is_locked - is the mutex locked * @lock: the mutex to be queried * - * Returns 1 if the mutex is locked, 0 if unlocked. + * Returns true if the mutex is locked, false if unlocked. */ -static inline int mutex_is_locked(struct mutex *lock) +static inline bool mutex_is_locked(struct mutex *lock) { /* * XXX think about spin_is_locked _ -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html