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authorLinus Torvalds <torvalds@linux-foundation.org>2014-08-04 16:09:06 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-08-04 16:09:06 -0700
commit8efb90cf1e80129fad197b916714e1d01ee183d2 (patch)
tree8eacf9e5f34cc7a9e2b553974b9f9181d61be294 /include
parent5bda4f638f36ef4c4e3b1397b02affc3db94356e (diff)
parent3a6bfbc91df04b081a44d419e0260bad54abddf7 (diff)
Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar: "The main changes in this cycle are: - big rtmutex and futex cleanup and robustification from Thomas Gleixner - mutex optimizations and refinements from Jason Low - arch_mutex_cpu_relax() removal and related cleanups - smaller lockdep tweaks" * 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits) arch, locking: Ciao arch_mutex_cpu_relax() locking/lockdep: Only ask for /proc/lock_stat output when available locking/mutexes: Optimize mutex trylock slowpath locking/mutexes: Try to acquire mutex only if it is unlocked locking/mutexes: Delete the MUTEX_SHOW_NO_WAITER macro locking/mutexes: Correct documentation on mutex optimistic spinning rtmutex: Make the rtmutex tester depend on BROKEN futex: Simplify futex_lock_pi_atomic() and make it more robust futex: Split out the first waiter attachment from lookup_pi_state() futex: Split out the waiter check from lookup_pi_state() futex: Use futex_top_waiter() in lookup_pi_state() futex: Make unlock_pi more robust rtmutex: Avoid pointless requeueing in the deadlock detection chain walk rtmutex: Cleanup deadlock detector debug logic rtmutex: Confine deadlock logic to futex rtmutex: Simplify remove_waiter() rtmutex: Document pi chain walk rtmutex: Clarify the boost/deboost part rtmutex: No need to keep task ref for lock owner check rtmutex: Simplify and document try_to_take_rtmutex() ...
Diffstat (limited to 'include')
-rw-r--r--include/linux/mutex.h4
-rw-r--r--include/linux/rtmutex.h6
-rw-r--r--include/linux/seqlock.h2
3 files changed, 2 insertions, 10 deletions
diff --git a/include/linux/mutex.h b/include/linux/mutex.h
index 42aa9b9ecd5f..8d5535c58cc2 100644
--- a/include/linux/mutex.h
+++ b/include/linux/mutex.h
@@ -176,8 +176,4 @@ extern void mutex_unlock(struct mutex *lock);
extern int atomic_dec_and_mutex_lock(atomic_t *cnt, struct mutex *lock);
-#ifndef arch_mutex_cpu_relax
-# define arch_mutex_cpu_relax() cpu_relax()
-#endif
-
#endif /* __LINUX_MUTEX_H */
diff --git a/include/linux/rtmutex.h b/include/linux/rtmutex.h
index 3aed8d737e1a..1abba5ce2a2f 100644
--- a/include/linux/rtmutex.h
+++ b/include/linux/rtmutex.h
@@ -90,11 +90,9 @@ extern void __rt_mutex_init(struct rt_mutex *lock, const char *name);
extern void rt_mutex_destroy(struct rt_mutex *lock);
extern void rt_mutex_lock(struct rt_mutex *lock);
-extern int rt_mutex_lock_interruptible(struct rt_mutex *lock,
- int detect_deadlock);
+extern int rt_mutex_lock_interruptible(struct rt_mutex *lock);
extern int rt_mutex_timed_lock(struct rt_mutex *lock,
- struct hrtimer_sleeper *timeout,
- int detect_deadlock);
+ struct hrtimer_sleeper *timeout);
extern int rt_mutex_trylock(struct rt_mutex *lock);
diff --git a/include/linux/seqlock.h b/include/linux/seqlock.h
index 535f158977b9..8cf350325dc6 100644
--- a/include/linux/seqlock.h
+++ b/include/linux/seqlock.h
@@ -164,8 +164,6 @@ static inline unsigned read_seqcount_begin(const seqcount_t *s)
static inline unsigned raw_seqcount_begin(const seqcount_t *s)
{
unsigned ret = ACCESS_ONCE(s->sequence);
-
- seqcount_lockdep_reader_access(s);
smp_rmb();
return ret & ~1;
}