diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/sched.h | 6 | ||||
| -rw-r--r-- | include/linux/spinlock.h | 41 |
2 files changed, 34 insertions, 13 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index 79988f7e6aa3..3b43d3bb1123 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -491,6 +491,7 @@ extern unsigned long prof_len; extern unsigned long prof_shift; extern void FASTCALL(__wake_up(wait_queue_head_t *q, unsigned int mode, int nr)); +extern void FASTCALL(__wake_up_sync(wait_queue_head_t *q, unsigned int mode, int nr)); extern void FASTCALL(sleep_on(wait_queue_head_t *q)); extern long FASTCALL(sleep_on_timeout(wait_queue_head_t *q, signed long timeout)); @@ -507,6 +508,11 @@ extern void FASTCALL(sched_exit(task_t * p)); #define wake_up_interruptible(x) __wake_up((x),TASK_INTERRUPTIBLE, 1) #define wake_up_interruptible_nr(x, nr) __wake_up((x),TASK_INTERRUPTIBLE, nr) #define wake_up_interruptible_all(x) __wake_up((x),TASK_INTERRUPTIBLE, 0) +#ifdef CONFIG_SMP +#define wake_up_interruptible_sync(x) __wake_up_sync((x),TASK_INTERRUPTIBLE, 1) +#else +#define wake_up_interruptible_sync(x) __wake_up((x),TASK_INTERRUPTIBLE, 1) +#endif asmlinkage long sys_wait4(pid_t pid,unsigned int * stat_addr, int options, struct rusage * ru); extern int in_group_p(gid_t); diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h index 0e9f7247bc86..194541968c6a 100644 --- a/include/linux/spinlock.h +++ b/include/linux/spinlock.h @@ -26,6 +26,7 @@ #define write_lock_bh(lock) do { local_bh_disable(); write_lock(lock); } while (0) #define spin_unlock_irqrestore(lock, flags) do { spin_unlock(lock); local_irq_restore(flags); } while (0) +#define _raw_spin_unlock_irqrestore(lock, flags) do { _raw_spin_unlock(lock); local_irq_restore(flags); } while (0) #define spin_unlock_irq(lock) do { spin_unlock(lock); local_irq_enable(); } while (0) #define spin_unlock_bh(lock) do { spin_unlock(lock); local_bh_enable(); } while (0) @@ -143,6 +144,12 @@ do { \ preempt_schedule(); \ } while (0) +#define preempt_check_resched() \ +do { \ + if (unlikely(test_thread_flag(TIF_NEED_RESCHED))) \ + preempt_schedule(); \ +} while (0) + #define spin_lock(lock) \ do { \ preempt_disable(); \ @@ -157,6 +164,12 @@ do { \ preempt_enable(); \ } while (0) +#define spin_unlock_no_resched(lock) \ +do { \ + _raw_spin_unlock(lock); \ + preempt_enable_no_resched(); \ +} while (0) + #define read_lock(lock) ({preempt_disable(); _raw_read_lock(lock);}) #define read_unlock(lock) ({_raw_read_unlock(lock); preempt_enable();}) #define write_lock(lock) ({preempt_disable(); _raw_write_lock(lock);}) @@ -166,20 +179,22 @@ do { \ #else -#define preempt_get_count() (0) -#define preempt_disable() do { } while (0) +#define preempt_get_count() (0) +#define preempt_disable() do { } while (0) #define preempt_enable_no_resched() do {} while(0) -#define preempt_enable() do { } while (0) - -#define spin_lock(lock) _raw_spin_lock(lock) -#define spin_trylock(lock) _raw_spin_trylock(lock) -#define spin_unlock(lock) _raw_spin_unlock(lock) - -#define read_lock(lock) _raw_read_lock(lock) -#define read_unlock(lock) _raw_read_unlock(lock) -#define write_lock(lock) _raw_write_lock(lock) -#define write_unlock(lock) _raw_write_unlock(lock) -#define write_trylock(lock) _raw_write_trylock(lock) +#define preempt_enable() do { } while (0) +#define preempt_check_resched() do { } while (0) + +#define spin_lock(lock) _raw_spin_lock(lock) +#define spin_trylock(lock) _raw_spin_trylock(lock) +#define spin_unlock(lock) _raw_spin_unlock(lock) +#define spin_unlock_no_resched(lock) _raw_spin_unlock(lock) + +#define read_lock(lock) _raw_read_lock(lock) +#define read_unlock(lock) _raw_read_unlock(lock) +#define write_lock(lock) _raw_write_lock(lock) +#define write_unlock(lock) _raw_write_unlock(lock) +#define write_trylock(lock) _raw_write_trylock(lock) #endif /* "lock on reference count zero" */ |