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Re: [PATCH 3/5] locking/rtmutex: Use acquire/release semantics

From Davidlohr Bueso <dave@stgolabs.net>
Newsgroups linux.kernel
Subject Re: [PATCH 3/5] locking/rtmutex: Use acquire/release semantics
Date 2015-09-22 18:00 +0200
Message-ID <qby94-1o7-19@gated-at.bofh.it> (permalink)
References <qbfJ7-fE-3@gated-at.bofh.it> <qbfJ8-fE-15@gated-at.bofh.it> <qbxPI-10s-39@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Tue, 22 Sep 2015, Thomas Gleixner wrote:

>> @@ -121,11 +130,14 @@ static inline bool unlock_rt_mutex_safe(struct rt_mutex *lock)
>>  	 *					lock(wait_lock);
>>  	 *					acquire(lock);
>>  	 */
>> -	return rt_mutex_cmpxchg(lock, owner, NULL);
>> +	return rt_mutex_cmpxchg_acquire(lock, owner, NULL);
>
>Why is this acquire?

Because I am an idiot, that should be a release...

Thanks,
Davidlohr
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Thread

[PATCH 0/5] locking: Use acquire/release semantics Davidlohr Bueso <dave@stgolabs.net> - 2015-09-21 22:20 +0200
  [PATCH 4/5] locking/rwsem: Use acquire/release semantics Davidlohr Bueso <dave@stgolabs.net> - 2015-09-21 22:20 +0200
    Re: [PATCH 4/5] locking/rwsem: Use acquire/release semantics Linus Torvalds <torvalds@linux-foundation.org> - 2015-09-21 22:40 +0200
    [PATCH v2] locking/rwsem: Use acquire/release semantics Davidlohr Bueso <dave@stgolabs.net> - 2015-09-24 03:10 +0200
  [PATCH 3/5] locking/rtmutex: Use acquire/release semantics Davidlohr Bueso <dave@stgolabs.net> - 2015-09-21 22:20 +0200
    Re: [PATCH 3/5] locking/rtmutex: Use acquire/release semantics Thomas Gleixner <tglx@linutronix.de> - 2015-09-22 17:40 +0200
      Re: [PATCH 3/5] locking/rtmutex: Use acquire/release semantics Davidlohr Bueso <dave@stgolabs.net> - 2015-09-22 18:00 +0200
    [PATCH v2] locking/rtmutex: Use acquire/release semantics Davidlohr Bueso <dave@stgolabs.net> - 2015-09-24 03:10 +0200
      Re: [PATCH v2] locking/rtmutex: Use acquire/release semantics Thomas Gleixner <tglx@linutronix.de> - 2015-09-27 12:40 +0200
        Re: [PATCH v2] locking/rtmutex: Use acquire/release semantics Davidlohr Bueso <dave@stgolabs.net> - 2015-09-28 22:00 +0200
          Re: [PATCH v2] locking/rtmutex: Use acquire/release semantics Thomas Gleixner <tglx@linutronix.de> - 2015-09-29 23:00 +0200
  [PATCH 1/5] asm-generic: Add _{relaxed|acquire|release}() variants for inc/dec atomics Davidlohr Bueso <dave@stgolabs.net> - 2015-09-21 22:20 +0200

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