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Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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Pull core locking updates from Ingo Molnar:
 "The main updates in this cycle were:

   - mutex MCS refactoring finishing touches: improve comments, refactor
     and clean up code, reduce debug data structure footprint, etc.

   - qrwlock finishing touches: remove old code, self-test updates.

   - small rwsem optimization

   - various smaller fixes/cleanups"

* 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  locking/lockdep: Revert qrwlock recusive stuff
  locking/rwsem: Avoid double checking before try acquiring write lock
  locking/rwsem: Move EXPORT_SYMBOL() lines to follow function definition
  locking/rwlock, x86: Delete unused asm/rwlock.h and rwlock.S
  locking/rwlock, x86: Clean up asm/spinlock*.h to remove old rwlock code
  locking/semaphore: Resolve some shadow warnings
  locking/selftest: Support queued rwlock
  locking/lockdep: Restrict the use of recursive read_lock() with qrwlock
  locking/spinlocks: Always evaluate the second argument of spin_lock_nested()
  locking/Documentation: Update locking/mutex-design.txt disadvantages
  locking/Documentation: Move locking related docs into Documentation/locking/
  locking/mutexes: Use MUTEX_SPIN_ON_OWNER when appropriate
  locking/mutexes: Refactor optimistic spinning code
  locking/mcs: Remove obsolete comment
  locking/mutexes: Document quick lock release when unlocking
  locking/mutexes: Standardize arguments in lock/unlock slowpaths
  locking: Remove deprecated smp_mb__() barriers
This commit is contained in:
Linus Torvalds
2014-10-13 15:51:40 +02:00
parent dbb885fecc 8acd91e862
commit 6d5f0ebfc0
30 changed files with 282 additions and 483 deletions
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kernel/sched/core.c
-16
View File
@@ -90,22 +90,6 @@
#define CREATE_TRACE_POINTS
#include <trace/events/sched.h>
#ifdef smp_mb__before_atomic
void __smp_mb__before_atomic(void)
{
smp_mb__before_atomic();
}
EXPORT_SYMBOL(__smp_mb__before_atomic);
#endif
#ifdef smp_mb__after_atomic
void __smp_mb__after_atomic(void)
{
smp_mb__after_atomic();
}
EXPORT_SYMBOL(__smp_mb__after_atomic);
#endif
void start_bandwidth_timer(struct hrtimer *period_timer, ktime_t period)
{
unsigned long delta;