Maria Yu
a5946df754
locking/rwsem: for rwsem prio aware enhancement ...
When add into waiting list will be prio aware,
lower prio value means higher priority task will get lock
before lower priority task.
Only try to preempt waiters with which task priority
which is higher than DEFAULT_PRIO.
To avoid starvation, add count to record how many waiters
preempt to queue in wait list. If preempt count is exceed
MAX_PREEMPT_ALLOWED, use simple FIFO to queue in the wait
list until the wait list is empty.
Change-Id: I4d5fe6a823a16c9762e2e2f416d34bdd701341c4
Signed-off-by: Maria Yu <aiquny@codeaurora.org>
2019-01-08 16:14:39 +08:00
locking/lockdep: Do not record IRQ state within lockdep code
2018-08-24 13:12:31 +02:00
lockdep: Limit static allocations if PROVE_LOCKING_SMALL is defined
2016-11-18 11:33:19 -08:00
locking/locktorture: Fix num reader/writer corner cases
2018-03-22 09:17:58 +01:00
locking/lglock: Remove lglock implementation
2016-09-22 15:25:56 +02:00
mutex: Add a delay into the SPIN_ON_OWNER wait loop.
2017-05-23 16:22:46 -07:00
locking/osq_lock: Fix osq_lock queue corruption
2017-10-12 21:59:10 -07:00
locking/qrwlock: Prevent slowpath writers getting held up by fastpath
2018-06-25 03:25:29 -07:00
locking/qspinlock: Ensure node->count is updated before initialising node
2018-05-30 07:50:26 +02:00
locking/pv-qspinlock: Use cmpxchg_release() in __pv_queued_spin_unlock()
2016-09-22 15:25:51 +02:00
rtmutex: Fix PI chain order integrity
2018-03-22 09:17:47 +01:00
rtmutex: Fix PI chain order integrity
2018-03-22 09:17:47 +01:00
locking/rwsem-spinlock: Fix EINTR branch in __down_write_common()
2017-07-15 12:16:15 +02:00
locking/rwsem: for rwsem prio aware enhancement
2019-01-08 16:14:39 +08:00
locking/rwsem: for rwsem prio aware enhancement
2019-01-08 16:14:39 +08:00
lib: spinlock: Trigger a watchdog bite on spin_dump for rwlock
2018-04-16 18:08:10 -07:00
a5946df754