android_kernel_motorola_sm6375/kernel/locking
Repository files (latest commit first)
Filename Latest commit message Latest commit date
Waiman Long 5e39a73e47 locking/ww_mutex: Simplify use_ww_ctx & ww_ctx handling
[ Upstream commit 5de2055d31ea88fd9ae9709ac95c372a505a60fa ]

The use_ww_ctx flag is passed to mutex_optimistic_spin(), but the
function doesn't use it. The frequent use of the (use_ww_ctx && ww_ctx)
combination is repetitive.

In fact, ww_ctx should not be used at all if !use_ww_ctx.  Simplify
ww_mutex code by dropping use_ww_ctx from mutex_optimistic_spin() an
clear ww_ctx if !use_ww_ctx. In this way, we can replace (use_ww_ctx &&
ww_ctx) by just (ww_ctx).

Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Davidlohr Bueso <dbueso@suse.de>
Link: https://lore.kernel.org/r/20210316153119.13802-2-longman@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-04-07 14:47:40 +02:00
..
lock_events.c
lock_events.h
lock_events_list.h locking/rwsem: Adaptive disabling of reader optimistic spinning 2019-06-17 12:28:09 +02:00
lockdep.c locking/lockdep: Decrement IRQ context counters when removing lock chain 2020-10-01 13:17:33 +02:00
lockdep_internals.h locking/lockdep: Decrement IRQ context counters when removing lock chain 2020-10-01 13:17:33 +02:00
lockdep_proc.c locking/lockdep: Fix overflow in presentation of average lock-time 2020-09-03 11:26:47 +02:00
lockdep_states.h
locktorture.c locktorture: Print ratio of acquisitions, not failures 2020-04-23 10:36:44 +02:00
Makefile locking/rwsem: Merge rwsem.h and rwsem-xadd.c into rwsem.c 2019-06-17 12:27:57 +02:00
mcs_spinlock.h
mutex-debug.c
mutex-debug.h
mutex.c locking/ww_mutex: Simplify use_ww_ctx & ww_ctx handling 2021-04-07 14:47:40 +02:00
mutex.h mutex: Fix up mutex_waiter usage 2019-08-08 09:09:25 +02:00
osq_lock.c
percpu-rwsem.c Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu 2019-06-28 19:46:47 +02:00
qrwlock.c
qspinlock.c
qspinlock_paravirt.h Revert "locking/pvqspinlock: Don't wait if vCPU is preempted" 2019-09-25 10:22:37 +02:00
qspinlock_stat.h
rtmutex-debug.c
rtmutex-debug.h
rtmutex.c rtmutex: Remove unused argument from rt_mutex_proxy_unlock() 2021-01-30 13:54:09 +01:00
rtmutex.h
rtmutex_common.h rtmutex: Remove unused argument from rt_mutex_proxy_unlock() 2021-01-30 13:54:09 +01:00
rwsem.c exec: Transform exec_update_mutex into a rw_semaphore 2021-01-09 13:44:55 +01:00
rwsem.h locking/rwsem: Merge rwsem.h and rwsem-xadd.c into rwsem.c 2019-06-17 12:27:57 +02:00
semaphore.c
spinlock.c
spinlock_debug.c locking/spinlock/debug: Fix various data races 2020-01-12 12:21:13 +01:00
test-ww_mutex.c