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* [PATCH] locking/rtmutex: remove unused cmpxchg_relaxed
@ 2020-01-21  8:34 Alex Shi
  2020-01-31 17:39 ` Davidlohr Bueso
  0 siblings, 1 reply; 7+ messages in thread
From: Alex Shi @ 2020-01-21  8:34 UTC (permalink / raw)
  Cc: Peter Zijlstra, Davidlohr Bueso, Ingo Molnar, Will Deacon, linux-kernel

No one use this macro after it was introduced. Better to remove it?

Signed-off-by: Alex Shi <alex.shi@linux.alibaba.com>
Cc: Peter Zijlstra <peterz@infradead.org> 
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Ingo Molnar <mingo@redhat.com> 
Cc: Will Deacon <will@kernel.org> 
Cc: linux-kernel@vger.kernel.org 
---
 kernel/locking/rtmutex.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/kernel/locking/rtmutex.c b/kernel/locking/rtmutex.c
index 851bbb10819d..a849964a348d 100644
--- a/kernel/locking/rtmutex.c
+++ b/kernel/locking/rtmutex.c
@@ -141,7 +141,6 @@ static void fixup_rt_mutex_waiters(struct rt_mutex *lock)
  * set up.
  */
 #ifndef CONFIG_DEBUG_RT_MUTEXES
-# define rt_mutex_cmpxchg_relaxed(l,c,n) (cmpxchg_relaxed(&l->owner, c, n) == c)
 # define rt_mutex_cmpxchg_acquire(l,c,n) (cmpxchg_acquire(&l->owner, c, n) == c)
 # define rt_mutex_cmpxchg_release(l,c,n) (cmpxchg_release(&l->owner, c, n) == c)
 
-- 
1.8.3.1


^ permalink raw reply related	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2020-02-14 15:17 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-01-21  8:34 [PATCH] locking/rtmutex: remove unused cmpxchg_relaxed Alex Shi
2020-01-31 17:39 ` Davidlohr Bueso
2020-01-31 20:23   ` Thomas Gleixner
2020-02-04 10:18     ` Alex Shi
2020-02-12 15:07       ` Davidlohr Bueso
2020-02-14 15:17       ` [PATCH 1/2] locking/rtmutex: Remove unused rt_mutex_cmpxchg_relaxed() Alex Shi
2020-02-14 15:17         ` [PATCH 2/2] locking/rtmutex: optimize rt_mutex_cmpxchgs Alex Shi

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