diff options
| author | Peter Rosin <[email protected]> | 2018-07-20 10:39:13 +0200 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2018-07-25 11:22:19 +0200 |
| commit | 62cedf3e60af03e47849fe2bd6a03ec179422a8a (patch) | |
| tree | 59dad6e595452aa0a96442424e481b768771eda8 /include/linux | |
| parent | d72e90f33aa4709ebecc5005562f52335e106a60 (diff) | |
locking/rtmutex: Allow specifying a subclass for nested locking
Needed for annotating rt_mutex locks.
Tested-by: John Sperbeck <[email protected]>
Signed-off-by: Peter Rosin <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Cc: Davidlohr Bueso <[email protected]>
Cc: Deepa Dinamani <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Chang <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Philippe Ombredanne <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: Wolfram Sang <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/rtmutex.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/rtmutex.h b/include/linux/rtmutex.h index 1b92a28dd672..6fd615a0eea9 100644 --- a/include/linux/rtmutex.h +++ b/include/linux/rtmutex.h @@ -106,7 +106,14 @@ static inline int rt_mutex_is_locked(struct rt_mutex *lock) extern void __rt_mutex_init(struct rt_mutex *lock, const char *name, struct lock_class_key *key); extern void rt_mutex_destroy(struct rt_mutex *lock); +#ifdef CONFIG_DEBUG_LOCK_ALLOC +extern void rt_mutex_lock_nested(struct rt_mutex *lock, unsigned int subclass); +#define rt_mutex_lock(lock) rt_mutex_lock_nested(lock, 0) +#else extern void rt_mutex_lock(struct rt_mutex *lock); +#define rt_mutex_lock_nested(lock, subclass) rt_mutex_lock(lock) +#endif + extern int rt_mutex_lock_interruptible(struct rt_mutex *lock); extern int rt_mutex_timed_lock(struct rt_mutex *lock, struct hrtimer_sleeper *timeout); |