kernel_optimize_test/kernel/locking
Waiman Long 412f34a82c locking/qspinlock_stat: Track the no MCS node available case
Track the number of slowpath locking operations that are being done
without any MCS node available as well renaming lock_index[123] to make
them more descriptive.

Using these stat counters is one way to find out if a code path is
being exercised.

Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: James Morse <james.morse@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: SRINIVAS <srinivas.eeda@oracle.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Zhenzhong Duan <zhenzhong.duan@oracle.com>
Link: https://lkml.kernel.org/r/1548798828-16156-3-git-send-email-longman@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-02-04 09:03:30 +01:00
..
lockdep_internals.h locking/lockdep: Provide enum lock_usage_bit mask names 2019-01-21 11:18:56 +01:00
lockdep_proc.c locking/lockdep: Make class->ops a percpu counter and move it under CONFIG_DEBUG_LOCKDEP=y 2018-10-09 09:56:33 +02:00
lockdep_states.h
lockdep.c locking/lockdep: Add debug_locks check in __lock_downgrade() 2019-02-04 09:03:27 +01:00
locktorture.c drm pull for 4.19-rc1 2018-08-15 17:39:07 -07:00
Makefile
mcs_spinlock.h
mutex-debug.c locking/mutex: Replace spin_is_locked() with lockdep 2018-11-12 09:06:22 -08:00
mutex-debug.h
mutex.c kernel/locking/mutex.c: remove caller signal_pending branch predictions 2019-01-04 13:13:48 -08:00
mutex.h
osq_lock.c
percpu-rwsem.c
qrwlock.c
qspinlock_paravirt.h mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
qspinlock_stat.h locking/qspinlock_stat: Track the no MCS node available case 2019-02-04 09:03:30 +01:00
qspinlock.c locking/qspinlock_stat: Track the no MCS node available case 2019-02-04 09:03:30 +01:00
rtmutex_common.h
rtmutex-debug.c
rtmutex-debug.h
rtmutex.c locking/rtmutex: Fix the preprocessor logic with normal #ifdef #else #endif 2018-09-11 08:12:00 +02:00
rtmutex.h
rwsem-spinlock.c
rwsem-xadd.c sched/wake_q: Reduce reference counting for special users 2019-02-04 09:03:28 +01:00
rwsem.c locking/rwsem: Make owner store task pointer of last owning reader 2018-09-10 12:04:07 +02:00
rwsem.h locking/rwsem: Make owner store task pointer of last owning reader 2018-09-10 12:04:07 +02:00
semaphore.c
spinlock_debug.c
spinlock.c
test-ww_mutex.c locking/ww_mutex: Fix runtime warning in the WW mutex selftest 2018-10-03 08:56:31 +02:00