Suren Baghdasaryan 0e387dc8bb ANDROID: percpu-rwsem: enable percpu_sem destruction in atomic context ...

Calling percpu_free_rwsem in atomic context results in "scheduling while
atomic" bug being triggered:

BUG: scheduling while atomic: klogd/158/0x00000002
...
  __schedule_bug+0x191/0x290
  schedule_debug+0x97/0x180
  __schedule+0xdc/0xba0
  schedule+0xda/0x250
  schedule_timeout+0x92/0x2d0
  __wait_for_common+0x25b/0x430
  wait_for_completion+0x1f/0x30
  rcu_barrier+0x440/0x4f0
  rcu_sync_dtor+0xaa/0x190
  percpu_free_rwsem+0x41/0x80

Introduce percpu_rwsem_destroy function to perform semaphore destruction
in a worker thread.

Bug: 161210518
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I74ac65c2a9962492cd5002d7a019d2aa13a21a8c

2021-12-16 06:14:25 +00:00

..

lock_events_list.h

locking/rwsem: Adaptive disabling of reader optimistic spinning

2019-06-17 12:28:09 +02:00

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: Fix usage_traceoverflow

2020-10-09 08:53:08 +02:00

lockdep_proc.c

locking/lockdep: Fix overflow in presentation of average lock-time

2020-07-25 21:47:42 +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

2021-11-18 14:04:02 +01:00

locktorture.c

locktorture: Make function torture_percpu_rwsem_init() static

2020-08-24 18:45:32 -07:00

Makefile

kcsan: Make KCSAN compatible with lockdep

2020-03-21 09:41:16 +01:00

mcs_spinlock.h

locking/mcs: Use smp_cond_load_acquire() in MCS spin loop

2018-04-27 09:48:49 +02:00

mutex-debug.c

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

2021-05-26 12:06:50 +02:00

mutex-debug.h

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

2021-05-26 12:06:50 +02:00

mutex.c

Merge 5.10.65 into android13-5.10

2021-09-17 09:30:49 +02:00

mutex.h

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

2021-05-26 12:06:50 +02:00

osq_lock.c

locking/osq_lock: Annotate a data race in osq_lock

2020-06-29 12:04:48 -07:00

percpu-rwsem.c

ANDROID: percpu-rwsem: enable percpu_sem destruction in atomic context

2021-12-16 06:14:25 +00:00

qrwlock.c

locking/qrwlock: Fix ordering in queued_write_lock_slowpath()

2021-04-28 13:40:00 +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

rtmutex: Remove unused argument from rt_mutex_proxy_unlock()

2021-01-30 13:55:17 +01:00

rtmutex-debug.c

kernel: rename show_stack_loglvl() => show_stack()

2020-06-09 09:39:13 -07:00

rtmutex-debug.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

rtmutex.c

ANDROID: vendor_hooks: set debugging data when rt_mutex is working

2021-05-07 00:12:54 +00:00

rtmutex.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

rwsem.c

ANDROID: vendor_hooks: Add hooks for rwsem and mutex

2021-03-10 21:18:26 +00:00

rwsem.h

locking/percpu-rwsem: Remove the embedded rwsem

2020-02-11 13:10:56 +01:00

semaphore.c

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 436

2019-06-05 17:37:17 +02:00

spinlock_debug.c

lockdep: Introduce wait-type checks

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

spinlock.c

asm-generic/mmiowb: Add generic implementation of mmiowb() tracking

2019-04-08 11:59:39 +01:00

test-ww_mutex.c

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

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