Zqiang 5e14b8b268 locking/rtmutex: Fix incorrect condition in rtmutex_spin_on_owner() ... commit 8f556a326c upstream. Optimistic spinning needs to be terminated when the spinning waiter is not longer the top waiter on the lock, but the condition is negated. It terminates if the waiter is the top waiter, which is defeating the whole purpose. Fixes: c3123c4314 ("locking/rtmutex: Dont dereference waiter lockless") Signed-off-by: Zqiang <qiang1.zhang@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20211217074207.77425-1-qiang1.zhang@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-12-22 09:32:48 +01:00
..
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
lock_events.h	locking/lock_events: Use raw_cpu_{add,inc}() for stats	2019-06-03 12:32:56 +02:00
lockdep_internals.h	lockdep: Allow tuning tracing capacity constants.	2021-04-05 20:33:57 +09:00
lockdep_proc.c	locking/lockdep: Fix meaningless /proc/lockdep output of lock classes on !CONFIG_PROVE_LOCKING	2021-07-05 10:44:52 +02:00
lockdep_states.h
lockdep.c	lockdep: Let lock_is_held_type() detect recursive read as read	2021-11-18 19:16:23 +01:00
locktorture.c	locktorture: Count lock readers	2021-07-27 11:39:30 -07:00
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/ww_mutex: Initialize waiter.ww_ctx properly	2021-08-20 12:15:54 +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/percpu-rwsem: Use this_cpu_{inc,dec}() for read_count	2020-09-16 16:26:56 +02:00
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: Prevent lockdep false positive with PI futexes	2021-08-17 19:06:02 +02:00
rtmutex_common.h	locking/rtmutex: Dont dereference waiter lockless	2021-08-25 15:42:32 +02:00
rtmutex.c	locking/rtmutex: Fix incorrect condition in rtmutex_spin_on_owner()	2021-12-22 09:32:48 +01:00
rwbase_rt.c	locking/rwbase: Take care of ordering guarantee for fastpath reader	2021-09-15 17:49:16 +02:00
rwsem.c	locking/rwsem: Make handoff bit handling more consistent	2021-12-01 09:04:54 +01:00
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/spinlock/rt: Prepare for RT local_lock	2021-08-17 19:06:13 +02:00
spinlock.c	locking/rwlock: Provide RT variant	2021-08-17 17:50:51 +02:00
test-ww_mutex.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 9	2019-05-21 11:28:40 +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	locking/ww_mutex: Implement rtmutex based ww_mutex API functions	2021-08-17 19:05:26 +02:00