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ddd0fa73c2
mirror_ubuntu-kernels/kernel/locking
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Waiman Long ddd0fa73c2 locking/rwsem: Streamline the rwsem_optimistic_spin() code 
This patch moves the owner loading and checking code entirely inside of
rwsem_spin_on_owner() to simplify the logic of rwsem_optimistic_spin()
loop.

Suggested-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Waiman Long <Waiman.Long@hpe.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Douglas Hatch <doug.hatch@hpe.com>
Cc: Jason Low <jason.low2@hp.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Scott J Norton <scott.norton@hpe.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1463534783-38814-6-git-send-email-Waiman.Long@hpe.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-06-08 15:17:00 +02:00
..
lglock.c sched/stop_machine: Fix deadlock between multiple stop_two_cpus() 2015-06-19 10:03:12 +02:00
lockdep_internals.h lockdep: Increase static allocations 2014-04-18 14:20:50 +02:00
lockdep_proc.c lockdep: Fix lock_chain::base size 2016-04-23 13:53:03 +02:00
lockdep_states.h
lockdep.c locking/lockdep: Use __jhash_mix() for iterate_chain_key() 2016-06-08 14:22:00 +02:00
locktorture.c lcoking/locktorture: Simplify the torture_runnable computation 2016-04-28 10:57:51 +02:00
Makefile kernel: add kcov code coverage 2016-03-22 15:36:02 -07:00
mcs_spinlock.h locking/mcs: Fix mcs_spin_lock() ordering 2016-02-29 10:02:41 +01:00
mutex-debug.c mutex: Always clear owner field upon mutex_unlock() 2015-01-09 11:20:39 +01:00
mutex-debug.h locking/mutex: Set and clear owner using WRITE_ONCE() 2016-06-03 12:06:10 +02:00
mutex.c locking/ww_mutex: Report recursive ww_mutex locking early 2016-06-03 08:37:26 +02:00
mutex.h locking/mutex: Set and clear owner using WRITE_ONCE() 2016-06-03 12:06:10 +02:00
osq_lock.c locking/osq: Fix ordering of node initialisation in osq_lock 2015-12-17 11:40:29 -08:00
percpu-rwsem.c ext4: fix races between changing inode journal mode and ext4_writepages 2016-04-25 23:22:35 -04:00
qrwlock.c locking/qrwlock: Rename ->lock to ->wait_lock 2015-09-18 09:27:29 +02:00
qspinlock_paravirt.h locking/pvqspinlock: Enable slowpath locking count tracking 2016-02-29 10:02:42 +01:00
qspinlock_stat.h locking/pvqspinlock: Robustify init_qspinlock_stat() 2016-05-05 09:58:51 +02:00
qspinlock.c locking/qspinlock: Add comments 2016-06-08 14:44:01 +02:00
rtmutex_common.h rtmutex: Delete scriptable tester 2015-07-20 11:45:45 +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.c locking/rtmutex: Only warn once on a trylock from bad context 2016-06-08 14:22:00 +02:00
rtmutex.h rtmutex: Cleanup deadlock detector debug logic 2014-06-21 22:05:30 +02:00
rwsem-spinlock.c locking/rwsem: Introduce basis for down_write_killable() 2016-04-13 10:42:20 +02:00
rwsem-xadd.c locking/rwsem: Streamline the rwsem_optimistic_spin() code 2016-06-08 15:17:00 +02:00
rwsem.c locking/rwsem: Add reader-owned state to the owner field 2016-06-08 15:16:59 +02:00
rwsem.h locking/rwsem: Protect all writes to owner by WRITE_ONCE() 2016-06-08 15:16:59 +02:00
semaphore.c locking/semaphore: Resolve some shadow warnings 2014-09-04 07:17:24 +02:00
spinlock_debug.c locking: Move the spinlock code to kernel/locking/ 2013-11-06 07:55:21 +01:00
spinlock.c spinlock: Add spin_lock_bh_nested() 2015-01-03 14:32:57 -05:00