Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Will Deacon 11dc13224c locking/qspinlock: Ensure node->count is updated before initialising node ... When queuing on the qspinlock, the count field for the current CPU's head node is incremented. This needn't be atomic because locking in e.g. IRQ context is balanced and so an IRQ will return with node->count as it found it. However, the compiler could in theory reorder the initialisation of node[idx] before the increment of the head node->count, causing an IRQ to overwrite the initialised node and potentially corrupt the lock state. Avoid the potential for this harmful compiler reordering by placing a barrier() between the increment of the head node->count and the subsequent node initialisation. Signed-off-by: Will Deacon <will.deacon@arm.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1518528177-19169-3-git-send-email-will.deacon@arm.com Signed-off-by: Ingo Molnar <mingo@kernel.org>		2018-02-13 14:50:14 +01:00
..
lockdep.c	Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2018-01-30 10:44:56 -08:00
lockdep_internals.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
lockdep_proc.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
lockdep_states.h	locking/lockdep: Rework FS_RECLAIM annotation	2017-08-10 12:29:03 +02:00
locktorture.c	torture: Eliminate torture_runnable and perf_runnable	2017-12-11 09:18:29 -08:00
Makefile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
mcs_spinlock.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
mutex-debug.c
mutex-debug.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
mutex.c
mutex.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
osq_lock.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
percpu-rwsem.c
qrwlock.c	locking/qrwlock: Prevent slowpath writers getting held up by fastpath	2017-10-25 10:57:25 +02:00
qspinlock.c	locking/qspinlock: Ensure node->count is updated before initialising node	2018-02-13 14:50:14 +01:00
qspinlock_paravirt.h	locking/pvqspinlock: Implement hybrid PV queued/unfair locks	2017-11-08 10:10:04 +01:00
qspinlock_stat.h
rtmutex-debug.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
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	futex: Avoid violating the 10th rule of futex	2018-01-14 18:49:16 +01:00
rtmutex.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
rtmutex_common.h	futex: Avoid violating the 10th rule of futex	2018-01-14 18:49:16 +01:00
rwsem-spinlock.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
rwsem-xadd.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
rwsem.c	Merge branch 'linus' into locking/core, to resolve conflicts	2017-11-07 10:32:44 +01:00
rwsem.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
semaphore.c
spinlock.c	locking/core: Remove break_lock field when CONFIG_GENERIC_LOCKBREAK=y	2017-12-12 11:24:01 +01:00
spinlock_debug.c
test-ww_mutex.c	mm: treewide: remove GFP_TEMPORARY allocation flag	2017-09-13 18:53:16 -07:00