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linux-stable/kernel/locking
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Yanfei Xu 562d350a88 locking/rwsem: Disable preemption for spinning region 
[ Upstream commit 7cdacc5f52 ]

The spinning region rwsem_spin_on_owner() should not be preempted,
however the rwsem_down_write_slowpath() invokes it and don't disable
preemption. Fix it by adding a pair of preempt_disable/enable().

Signed-off-by: Yanfei Xu <yanfei.xu@windriver.com>
[peterz: Fix CONFIG_RWSEM_SPIN_ON_OWNER=n build]
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Waiman Long <longman@redhat.com>
Link: https://lore.kernel.org/r/20211013134154.1085649-3-yanfei.xu@windriver.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18 19:16:16 +01:00
..
irqflag-debug.c lockdep: Noinstr annotate warn_bogus_irq_restore() 2021-02-10 14:44:39 +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
lock_events_list.h locking/rwsem: Remove reader optimistic spinning 2020-12-09 17:08:48 +01:00
lockdep.c locking/lockdep: Avoid RCU-induced noinstr fail 2021-11-18 19:16:09 +01:00
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 locking/lockdep: Rework FS_RECLAIM annotation 2017-08-10 12:29:03 +02:00
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.c x86/kvm: Add "nopvspin" parameter to disable PV spinlocks 2020-07-08 16:21:57 -04:00
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
rtmutex.c locking/rtmutex: Fix ww_mutex deadlock check 2021-09-09 10:31:22 +02:00
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
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: Disable preemption for spinning region 2021-11-18 19:16:16 +01:00
semaphore.c locking/semaphore: Add might_sleep() to down_*() family 2021-08-20 12:33:17 +02:00
spinlock.c locking/rwlock: Provide RT variant 2021-08-17 17:50:51 +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
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