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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2014-03-01 10:31:53 -0800 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2014-03-01 10:31:53 -0800 |
| commit | 04421fe2671c1790ab6529fad87ce8c73af0e1eb (patch) | |
| tree | d2f803b4eef6108648f1beee6bf97a342cd9bc73 /include/linux/rtmutex.h | |
| parent | 7fb45edba8b5206e645572a682c946f67375447e (diff) | |
| parent | cfbf8d4857c26a8a307fb7cd258074c9dcd8c691 (diff) | |
| download | lwn-04421fe2671c1790ab6529fad87ce8c73af0e1eb.tar.gz lwn-04421fe2671c1790ab6529fad87ce8c73af0e1eb.zip | |
Merge tag 'v3.14-rc4' into next
Merge with Linux 3.14-rc4 to bring devm_request_any_context_irq().
Diffstat (limited to 'include/linux/rtmutex.h')
| -rw-r--r-- | include/linux/rtmutex.h | 18 |
1 files changed, 6 insertions, 12 deletions
diff --git a/include/linux/rtmutex.h b/include/linux/rtmutex.h index de17134244f3..3aed8d737e1a 100644 --- a/include/linux/rtmutex.h +++ b/include/linux/rtmutex.h @@ -13,7 +13,7 @@ #define __LINUX_RT_MUTEX_H #include <linux/linkage.h> -#include <linux/plist.h> +#include <linux/rbtree.h> #include <linux/spinlock_types.h> extern int max_lock_depth; /* for sysctl */ @@ -22,12 +22,14 @@ extern int max_lock_depth; /* for sysctl */ * The rt_mutex structure * * @wait_lock: spinlock to protect the structure - * @wait_list: pilist head to enqueue waiters in priority order + * @waiters: rbtree root to enqueue waiters in priority order + * @waiters_leftmost: top waiter * @owner: the mutex owner */ struct rt_mutex { raw_spinlock_t wait_lock; - struct plist_head wait_list; + struct rb_root waiters; + struct rb_node *waiters_leftmost; struct task_struct *owner; #ifdef CONFIG_DEBUG_RT_MUTEXES int save_state; @@ -66,7 +68,7 @@ struct hrtimer_sleeper; #define __RT_MUTEX_INITIALIZER(mutexname) \ { .wait_lock = __RAW_SPIN_LOCK_UNLOCKED(mutexname.wait_lock) \ - , .wait_list = PLIST_HEAD_INIT(mutexname.wait_list) \ + , .waiters = RB_ROOT \ , .owner = NULL \ __DEBUG_RT_MUTEX_INITIALIZER(mutexname)} @@ -98,12 +100,4 @@ extern int rt_mutex_trylock(struct rt_mutex *lock); extern void rt_mutex_unlock(struct rt_mutex *lock); -#ifdef CONFIG_RT_MUTEXES -# define INIT_RT_MUTEXES(tsk) \ - .pi_waiters = PLIST_HEAD_INIT(tsk.pi_waiters), \ - INIT_RT_MUTEX_DEBUG(tsk) -#else -# define INIT_RT_MUTEXES(tsk) -#endif - #endif |