linux/kernel/locking
Waiman Long 5de2055d31 locking/ww_mutex: Simplify use_ww_ctx & ww_ctx handling
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
2021-03-17 09:56:44 +01:00
..
Makefile
irqflag-debug.c
lock_events.c
lock_events.h
lock_events_list.h
lockdep.c
lockdep_internals.h
lockdep_proc.c
lockdep_states.h
locktorture.c
mcs_spinlock.h
mutex-debug.c
mutex-debug.h
mutex.c locking/ww_mutex: Simplify use_ww_ctx & ww_ctx handling 2021-03-17 09:56:44 +01:00
mutex.h
osq_lock.c
percpu-rwsem.c
qrwlock.c
qspinlock.c
qspinlock_paravirt.h
qspinlock_stat.h
rtmutex-debug.c
rtmutex-debug.h
rtmutex.c
rtmutex.h
rtmutex_common.h
rwsem.c
semaphore.c
spinlock.c
spinlock_debug.c
test-ww_mutex.c