diff options
| author | Ingo Molnar <mingo@elte.hu> | 2002-06-11 23:26:40 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2002-06-11 23:26:40 +0200 |
| commit | 019afe86fbee596319a952757ff23426319e5d18 (patch) | |
| tree | 10f885b3ebf3d08b30618cc627012c3c2e39384d /include/linux | |
| parent | b5734da13d8c0199e20970e8d315021091d3393b (diff) | |
- squeeze a few more cycles out of the wakeup hotpath.
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/spinlock.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h index 5e1cc9fae5df..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(); \ @@ -176,6 +183,7 @@ do { \ #define preempt_disable() do { } while (0) #define preempt_enable_no_resched() do {} while(0) #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) |