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authorLinus Torvalds <torvalds@linux-foundation.org>2015-02-09 15:24:03 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2015-02-09 15:24:03 -0800
commit8308756f45a12e2ff4f7749c2694fc83cdef0be9 (patch)
tree618c8f955d22927ebe73d94305d19b37c6ab65c9 /kernel/futex.c
parent23e8fe2e16587494268510c1bc9f6952f50f0311 (diff)
parentafffc6c1805d98e08e778cddb644a666e78cfcfd (diff)
Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull core locking updates from Ingo Molnar: "The main changes are: - mutex, completions and rtmutex micro-optimizations - lock debugging fix - various cleanups in the MCS and the futex code" * 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: locking/rtmutex: Optimize setting task running after being blocked locking/rwsem: Use task->state helpers sched/completion: Add lock-free checking of the blocking case sched/completion: Remove unnecessary ->wait.lock serialization when reading completion state locking/mutex: Explicitly mark task as running after wakeup futex: Fix argument handling in futex_lock_pi() calls doc: Fix misnamed FUTEX_CMP_REQUEUE_PI op constants locking/Documentation: Update code path softirq/preempt: Add missing current->preempt_disable_ip update locking/osq: No need for load/acquire when acquire-polling locking/mcs: Better differentiate between MCS variants locking/mutex: Introduce ww_mutex_set_context_slowpath() locking/mutex: Move MCS related comments to proper location locking/mutex: Checking the stamp is WW only
Diffstat (limited to 'kernel/futex.c')
-rw-r--r--kernel/futex.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/kernel/futex.c b/kernel/futex.c
index 63678b573d61..4eeb63de7e54 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -2258,7 +2258,7 @@ static long futex_wait_restart(struct restart_block *restart)
* if there are waiters then it will block, it does PI, etc. (Due to
* races the kernel might see a 0 value of the futex too.)
*/
-static int futex_lock_pi(u32 __user *uaddr, unsigned int flags, int detect,
+static int futex_lock_pi(u32 __user *uaddr, unsigned int flags,
ktime_t *time, int trylock)
{
struct hrtimer_sleeper timeout, *to = NULL;
@@ -2953,11 +2953,11 @@ long do_futex(u32 __user *uaddr, int op, u32 val, ktime_t *timeout,
case FUTEX_WAKE_OP:
return futex_wake_op(uaddr, flags, uaddr2, val, val2, val3);
case FUTEX_LOCK_PI:
- return futex_lock_pi(uaddr, flags, val, timeout, 0);
+ return futex_lock_pi(uaddr, flags, timeout, 0);
case FUTEX_UNLOCK_PI:
return futex_unlock_pi(uaddr, flags);
case FUTEX_TRYLOCK_PI:
- return futex_lock_pi(uaddr, flags, 0, timeout, 1);
+ return futex_lock_pi(uaddr, flags, NULL, 1);
case FUTEX_WAIT_REQUEUE_PI:
val3 = FUTEX_BITSET_MATCH_ANY;
return futex_wait_requeue_pi(uaddr, flags, val, timeout, val3,