summaryrefslogtreecommitdiff
path: root/include/linux/mutex.h
diff options
context:
space:
mode:
authorDmitry Torokhov <dmitry.torokhov@gmail.com>2018-04-04 16:11:49 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2018-04-04 16:11:49 -0700
commit664b0bae0b87f69bc9deb098f5e0158b9cf18e04 (patch)
treed5841492b396ff483723b9339c7c11dc33b67688 /include/linux/mutex.h
parent567b9b549cfa1cbc202762ae97b5385c29ade1e3 (diff)
parent04bb1719c4de94700056241d4c0fe3c1413f5aff (diff)
Merge branch 'next' into for-linus
Prepare input updates for 4.17 merge window.
Diffstat (limited to 'include/linux/mutex.h')
-rw-r--r--include/linux/mutex.h9
1 files changed, 7 insertions, 2 deletions
diff --git a/include/linux/mutex.h b/include/linux/mutex.h
index 153274f78402..cb3bbed4e633 100644
--- a/include/linux/mutex.h
+++ b/include/linux/mutex.h
@@ -66,6 +66,11 @@ struct mutex {
#endif
};
+/*
+ * Internal helper function; C doesn't allow us to hide it :/
+ *
+ * DO NOT USE (outside of mutex code).
+ */
static inline struct task_struct *__mutex_owner(struct mutex *lock)
{
return (struct task_struct *)(atomic_long_read(&lock->owner) & ~0x07);
@@ -138,9 +143,9 @@ 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