diff options
Diffstat (limited to 'include/linux/local_lock_internal.h')
| -rw-r--r-- | include/linux/local_lock_internal.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/local_lock_internal.h b/include/linux/local_lock_internal.h index 949de37700db..a4dc479157b5 100644 --- a/include/linux/local_lock_internal.h +++ b/include/linux/local_lock_internal.h @@ -165,6 +165,9 @@ do { \ !!tl; \ }) +/* preemption or migration must be disabled before calling __local_lock_is_locked */ +#define __local_lock_is_locked(lock) READ_ONCE(this_cpu_ptr(lock)->acquired) + #define __local_lock_release(lock) \ do { \ local_trylock_t *tl; \ @@ -285,4 +288,8 @@ do { \ __local_trylock(lock); \ }) +/* migration must be disabled before calling __local_lock_is_locked */ +#define __local_lock_is_locked(__lock) \ + (rt_mutex_owner(&this_cpu_ptr(__lock)->lock) == current) + #endif /* CONFIG_PREEMPT_RT */ |