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kernel/mutex: mutex_is_locked can be boolean
author
Yaowei Bai
<baiyaowei@cmss.chinamobile.com>
Tue, 6 Feb 2018 23:41:35 +0000
(15:41 -0800)
committer
Linus Torvalds
<torvalds@linux-foundation.org>
Wed, 7 Feb 2018 02:32:47 +0000
(18:32 -0800)
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>
include/linux/mutex.h
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diff --git
a/include/linux/mutex.h
b/include/linux/mutex.h
index 153274f78402b0483ff24001960b19739772afcd..f25c13423bd4774d3d602d2ec7afb561a39614d5 100644
(file)
--- a/
include/linux/mutex.h
+++ b/
include/linux/mutex.h
@@
-138,9
+138,9
@@
extern void __mutex_init(struct mutex *lock, const char *name,
* 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