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rtmutes: Convert rtmutex.lock to raw_spinlock

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Convert locks which cannot be sleeping locks in preempt-rt to
raw_spinlocks.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Thomas Gleixner 2009-11-17 18:22:11 +01:00
parent 1d61548254
commit d209d74d52
3 changed files with 30 additions and 30 deletions
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6
include/linux/rtmutex.h
View file

@ -24,7 +24,7 @@
* @owner: the mutex owner
*/
struct rt_mutex {
spinlock_t wait_lock;
raw_spinlock_t wait_lock;
struct plist_head wait_list;
struct task_struct *owner;
#ifdef CONFIG_DEBUG_RT_MUTEXES
@ -63,8 +63,8 @@ struct hrtimer_sleeper;
#endif
#define __RT_MUTEX_INITIALIZER(mutexname) \
{ .wait_lock = __SPIN_LOCK_UNLOCKED(mutexname.wait_lock) \
, .wait_list = PLIST_HEAD_INIT(mutexname.wait_list, mutexname.wait_lock) \
{ .wait_lock = __RAW_SPIN_LOCK_UNLOCKED(mutexname.wait_lock) \
, .wait_list = PLIST_HEAD_INIT_RAW(mutexname.wait_list, mutexname.wait_lock) \
, .owner = NULL \
__DEBUG_RT_MUTEX_INITIALIZER(mutexname)}