diff options
Diffstat (limited to 'kern/spinlock.h')
| -rw-r--r-- | kern/spinlock.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/kern/spinlock.h b/kern/spinlock.h index 62974922..4dc4c83e 100644 --- a/kern/spinlock.h +++ b/kern/spinlock.h @@ -26,6 +26,7 @@ #ifndef _KERN_SPINLOCK_H #define _KERN_SPINLOCK_H +#include <kern/macros.h> #include <kern/spinlock_i.h> #include <kern/spinlock_types.h> #include <kern/thread.h> @@ -55,7 +56,7 @@ spinlock_trylock(struct spinlock *lock) thread_preempt_disable(); error = spinlock_lock_fast(lock); - if (error) { + if (unlikely(error)) { thread_preempt_enable(); } @@ -117,7 +118,7 @@ spinlock_trylock_intr_save(struct spinlock *lock, unsigned long *flags) cpu_intr_save(flags); error = spinlock_lock_fast(lock); - if (error) { + if (unlikely(error)) { cpu_intr_restore(*flags); thread_preempt_enable(); } |