rtmutes: Convert rtmutex.lock to raw_spinlock
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>
diff --git a/include/linux/rtmutex.h b/include/linux/rtmutex.h
index f19b00b..281d8fd 100644
--- a/include/linux/rtmutex.h
+++ b/include/linux/rtmutex.h
@@ -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 @@
#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)}