Namhyung Kim 16edd9b511 locking: Add lock contention tracepoints ... This adds two new lock contention tracepoints like below: * lock:contention_begin * lock:contention_end The lock:contention_begin takes a flags argument to classify locks. I found it useful to identify what kind of locks it's tracing like if it's spinning or sleeping, reader-writer lock, real-time, and per-cpu. Move tracepoint definitions into mutex.c so that we can use them without lockdep. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Hyeonggon Yoo <42.hyeyoo@gmail.com> Link: https://lkml.kernel.org/r/20220322185709.141236-2-namhyung@kernel.org		2022-04-05 10:24:35 +02:00
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irqflag-debug.c	lockdep: Noinstr annotate warn_bogus_irq_restore()	2021-02-10 14:44:39 +01:00
lock_events_list.h	locking/rwsem: Remove reader optimistic spinning	2020-12-09 17:08:48 +01:00
lock_events.c	locking/lock_events: Don't show pvqspinlock events on bare metal	2019-04-10 10:56:05 +02:00
lock_events.h	locking/lock_events: Use raw_cpu_{add,inc}() for stats	2019-06-03 12:32:56 +02:00
lockdep_internals.h	locking/lockdep: Iterate lock_classes directly when reading lockdep files	2022-02-16 15:57:58 +01:00
lockdep_proc.c	locking/lockdep: Iterate lock_classes directly when reading lockdep files	2022-02-16 15:57:58 +01:00
lockdep_states.h	locking/lockdep: Rework FS_RECLAIM annotation	2017-08-10 12:29:03 +02:00
lockdep.c	locking: Add lock contention tracepoints	2022-04-05 10:24:35 +02:00
locktorture.c	locktorture,rcutorture,torture: Always log error message	2021-12-07 16:36:17 -08:00
Makefile	locking/ww_mutex: Implement rtmutex based ww_mutex API functions	2021-08-17 19:05:26 +02:00
mcs_spinlock.h	locking: Fix typos in comments	2021-03-22 02:45:52 +01:00
mutex-debug.c	locking/ww_mutex: Gather mutex_waiter initialization	2021-08-17 19:04:41 +02:00
mutex.c	locking: Add lock contention tracepoints	2022-04-05 10:24:35 +02:00
mutex.h	locking/mutex: Move the 'struct mutex_waiter' definition from <linux/mutex.h> to the internal header	2021-08-17 18:24:31 +02:00
osq_lock.c	locking: Fix typos in comments	2021-03-22 02:45:52 +01:00
percpu-rwsem.c	locking: Add missing __sched attributes	2022-02-11 12:13:55 +01:00
qrwlock.c	locking/qrwlock: Cleanup queued_write_lock_slowpath()	2021-05-06 15:33:49 +02:00
qspinlock_paravirt.h	Revert "locking/pvqspinlock: Don't wait if vCPU is preempted"	2019-09-25 10:22:37 +02:00
qspinlock_stat.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157	2019-05-30 11:26:37 -07:00
qspinlock.c	x86/kvm: Add "nopvspin" parameter to disable PV spinlocks	2020-07-08 16:21:57 -04:00
rtmutex_api.c	locking/rtmutex: Add rt_mutex_lock_nest_lock() and rt_mutex_lock_killable().	2021-12-04 10:56:23 +01:00
rtmutex_common.h	locking/rtmutex: Dont dereference waiter lockless	2021-08-25 15:42:32 +02:00
rtmutex.c	Merge branch 'locking/urgent' into locking/core	2021-12-18 10:57:03 +01:00
rwbase_rt.c	locking/rwbase: Optimize rwbase_read_trylock	2021-10-07 13:51:07 +02:00
rwsem.c	locking/rwsem: Always try to wake waiters in out_nolock path	2022-04-05 10:24:35 +02:00
semaphore.c	locking/semaphore: Add might_sleep() to down_*() family	2021-08-20 12:33:17 +02:00
spinlock_debug.c	locking/rwlock: Provide RT variant	2021-08-17 17:50:51 +02:00
spinlock_rt.c	locking/rwlocks: introduce write_lock_nested	2022-01-22 08:33:37 +02:00
spinlock.c	locking/rwlocks: introduce write_lock_nested	2022-01-22 08:33:37 +02:00
test-ww_mutex.c	locking/ww-mutex: Fix uninitialized use of ret in test_aa()	2021-10-01 13:57:49 +02:00
ww_mutex.h	locking/ww_mutex: Add rt_mutex based lock type and accessors	2021-08-17 19:05:11 +02:00
ww_rt_mutex.c	kernel/locking: Use a pointer in ww_mutex_trylock().	2021-11-17 14:48:49 +01:00