Jason Low 0c3c0f0d6e locking/mutexes: Correct documentation on mutex optimistic spinning ...

The mutex optimistic spinning documentation states that we spin for
acquisition when we find that there are no pending waiters. However,
in actuality, whether or not there are waiters for the mutex doesn't
determine if we will spin for it.

This patch removes that statement and also adds a comment which
mentions that we spin for the mutex while we don't need to reschedule.

Signed-off-by: Jason Low <jason.low2@hp.com>
Acked-by: Davidlohr Bueso <davidlohr@hp.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: akpm@linux-foundation.org
Cc: tim.c.chen@linux.intel.com
Cc: paulmck@linux.vnet.ibm.com
Cc: rostedt@goodmis.org
Cc: Waiman.Long@hp.com
Cc: scott.norton@hp.com
Cc: aswin@hp.com
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/1402511843-4721-2-git-send-email-jason.low2@hp.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

2014-07-05 11:25:41 +02:00

..

lglock.c

locking: Move the lglocks code to kernel/locking/

2013-11-06 09:24:20 +01:00

lockdep_internals.h

lockdep: Increase static allocations

2014-04-18 14:20:50 +02:00

lockdep_proc.c

lockdep/proc: Fix lock-time avg computation

2013-11-11 12:41:34 +01:00

lockdep_states.h

locking: Move the lockdep code to kernel/locking/

2013-11-06 07:55:08 +01:00

lockdep.c

asmlinkage: Add explicit __visible to drivers/*, lib/*, kernel/*

2014-05-05 16:07:46 -07:00

locktorture.c

Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next

2014-06-03 14:00:15 -07:00

Makefile

locking/rwlocks: Introduce 'qrwlocks' - fair, queued rwlocks

2014-06-06 07:58:28 +02:00

mcs_spinlock.c

locking/mutexes: Introduce cancelable MCS lock for adaptive spinning

2014-03-11 12:14:56 +01:00

mcs_spinlock.h

locking/mutexes: Introduce cancelable MCS lock for adaptive spinning

2014-03-11 12:14:56 +01:00

mutex-debug.c

locking/mutex: Fix debug_mutexes

2014-04-11 10:40:35 +02:00

mutex-debug.h

…

mutex.c

locking/mutexes: Correct documentation on mutex optimistic spinning

2014-07-05 11:25:41 +02:00

mutex.h

…

percpu-rwsem.c

locking: Move the percpu-rwsem code to kernel/locking/

2013-11-06 09:24:22 +01:00

qrwlock.c

locking/rwlocks: Introduce 'qrwlocks' - fair, queued rwlocks

2014-06-06 07:58:28 +02:00

rtmutex_common.h

rtmutex: Cleanup deadlock detector debug logic

2014-06-21 22:05:30 +02:00

rtmutex-debug.c

rtmutex: Cleanup deadlock detector debug logic

2014-06-21 22:05:30 +02:00

rtmutex-debug.h

rtmutex: Cleanup deadlock detector debug logic

2014-06-21 22:05:30 +02:00

rtmutex-tester.c

locking: Move the rtmutex code to kernel/locking/

2013-11-06 09:23:59 +01:00

rtmutex.c

rtmutex: Avoid pointless requeueing in the deadlock detection chain walk

2014-06-21 22:05:31 +02:00

rtmutex.h

rtmutex: Cleanup deadlock detector debug logic

2014-06-21 22:05:30 +02:00

rwsem-spinlock.c

locking: Move the rwsem code to kernel/locking/

2013-11-06 09:24:18 +01:00

rwsem-xadd.c

locking/rwsem: Fix checkpatch.pl warnings

2014-06-05 10:39:36 +02:00

rwsem.c

locking/rwsem: Support optimistic spinning

2014-06-05 10:38:21 +02:00

semaphore.c

locking: Move the semaphore core to kernel/locking/

2013-11-06 07:55:22 +01:00

spinlock_debug.c

locking: Move the spinlock code to kernel/locking/

2013-11-06 07:55:21 +01:00

spinlock.c

locking: Move the spinlock code to kernel/locking/

2013-11-06 07:55:21 +01:00