Peter Zijlstra
8b0be545de
locking/lockdep: Add nest_lock integrity test ...
[ Upstream commit 7fb4a2cea6b18dab56d609530d077f168169ed6b ]
Boqun reported that hlock->references can overflow. Add a debug test
for that to generate a clear error when this happens.
Without this, lockdep is likely to report a mysterious failure on
unlock.
Reported-by: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Nicolai Hähnle <Nicolai.Haehnle@amd.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-10-21 17:21:33 +02:00
locking/lockdep: Add nest_lock integrity test
2017-10-21 17:21:33 +02:00
lockdep: Limit static allocations if PROVE_LOCKING_SMALL is defined
2016-11-18 11:33:19 -08:00
lockdep: Fix lock_chain::base size
2016-04-23 13:53:03 +02:00
locktorture: Fix potential memory leak with rw lock test
2017-09-13 14:13:36 -07:00
locking/lglock: Remove lglock implementation
2016-09-22 15:25:56 +02:00
locking/mcs: Fix mcs_spin_lock() ordering
2016-02-29 10:02:41 +01:00
locking: avoid passing around 'thread_info' in mutex debugging code
2016-06-23 12:11:17 -07:00
Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-07-25 12:41:29 -07:00
locking: avoid passing around 'thread_info' in mutex debugging code
2016-06-23 12:11:17 -07:00
Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2016-07-25 12:41:29 -07:00
locking/osq: Fix ordering of node initialisation in osq_lock
2015-12-17 11:40:29 -08:00
locking/percpu-rwsem: Optimize readers and reduce global impact
2016-08-10 14:34:01 +02:00
locking/atomic, arch/qrwlock: Employ atomic_fetch_add_acquire()
2016-06-16 10:48:34 +02:00
locking/qspinlock: Use __this_cpu_dec() instead of full-blown this_cpu_dec()
2016-06-27 11:37:41 +02:00
locking/pv-qspinlock: Use cmpxchg_release() in __pv_queued_spin_unlock()
2016-09-22 15:25:51 +02:00
locking/pvstat: Separate wait_again and spurious wakeup stats
2016-08-10 14:16:02 +02:00
rtmutex: Cleanup deadlock detector debug logic
2014-06-21 22:05:30 +02:00
rtmutex: Cleanup deadlock detector debug logic
2014-06-21 22:05:30 +02:00
locking/rtmutex: Prevent dequeue vs. unlock race
2016-12-02 11:13:26 +01:00
rtmutex: Cleanup deadlock detector debug logic
2014-06-21 22:05:30 +02:00
locking/rtmutex: Use READ_ONCE() in rt_mutex_owner()
2016-12-02 11:13:26 +01:00
locking/rwsem-spinlock: Fix EINTR branch in __down_write_common()
2017-07-15 12:16:15 +02:00
locking/rwsem: Scan the wait_list for readers only once
2016-08-18 15:37:11 +02:00
locking/rwsem: Add reader-owned state to the owner field
2016-06-08 15:16:59 +02:00
locking/rwsem: Protect all writes to owner by WRITE_ONCE()
2016-06-08 15:16:59 +02:00
locking/semaphore: Resolve some shadow warnings
2014-09-04 07:17:24 +02:00
spinlock: Add spin_lock_bh_nested()
2015-01-03 14:32:57 -05:00
locking/spinlock/debug: Remove spinlock lockup detection code
2017-09-02 07:07:54 +02:00
8b0be545de