Sebastian Andrzej Siewior 391cdce61e lockdep: Let lock_is_held_type() detect recursive read as read ...

[ Upstream commit 2507003a1d ]

lock_is_held_type(, 1) detects acquired read locks. It only recognized
locks acquired with lock_acquire_shared(). Read locks acquired with
lock_acquire_shared_recursive() are not recognized because a `2' is
stored as the read value.

Rework the check to additionally recognise lock's read value one and two
as a read held lock.

Fixes: e918188611 ("locking: More accurate annotations for read_lock()")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Boqun Feng <boqun.feng@gmail.com>
Acked-by: Waiman Long <longman@redhat.com>
Link: https://lkml.kernel.org/r/20210903084001.lblecrvz4esl4mrr@linutronix.de
Signed-off-by: Sasha Levin <sashal@kernel.org>

2021-11-17 11:03:58 +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

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

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

lockdep.c

lockdep: Let lock_is_held_type() detect recursive read as read

2021-11-17 11:03:58 +01:00

locktorture.c

locking/locktorture: Fix incorrect use of ww_acquire_ctx in ww_mutex test

2021-03-19 12:13:10 +01:00

Makefile

locking/rtmutex: Move debug functions as inlines into common header

2021-03-29 15:57:04 +02:00

mcs_spinlock.h

locking: Fix typos in comments

2021-03-22 02:45:52 +01:00

mutex-debug.c

locking/mutex: clear MUTEX_FLAGS if wait_list is empty due to signal

2021-05-18 12:53:51 +02:00

mutex-debug.h

locking/mutex: clear MUTEX_FLAGS if wait_list is empty due to signal

2021-05-18 12:53:51 +02:00

mutex.c

locking/mutex: Fix HANDOFF condition

2021-09-15 10:02:02 +02:00

mutex.h

locking/mutex: clear MUTEX_FLAGS if wait_list is empty due to signal

2021-05-18 12:53:51 +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_common.h

locking/rtmutex: Move debug functions as inlines into common header

2021-03-29 15:57:04 +02:00

rtmutex.c

locking/rtmutex: Set proper wait context for lockdep

2021-09-18 13:43:52 +02:00

rwsem.c

locking/rwsem: Disable preemption for spinning region

2021-11-17 11:03:51 +01:00

semaphore.c

kernel: delete repeated words in comments

2021-02-26 09:41:03 -08:00

spinlock_debug.c

lockdep: Introduce wait-type checks

2020-03-21 16:00:24 +01:00

spinlock.c

locking: Fix typos in comments

2021-03-22 02:45:52 +01:00

test-ww_mutex.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 9

2019-05-21 11:28:40 +02:00