diff options
Diffstat (limited to 'include/linux/spinlock.h')
| -rw-r--r-- | include/linux/spinlock.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h index a946176db638..c376f3b36c89 100644 --- a/include/linux/spinlock.h +++ b/include/linux/spinlock.h | |||
| @@ -282,6 +282,13 @@ do { \ | |||
| 282 | 1 : ({ local_irq_restore(flags); 0; }); \ | 282 | 1 : ({ local_irq_restore(flags); 0; }); \ |
| 283 | }) | 283 | }) |
| 284 | 284 | ||
| 285 | #define write_trylock_irqsave(lock, flags) \ | ||
| 286 | ({ \ | ||
| 287 | local_irq_save(flags); \ | ||
| 288 | write_trylock(lock) ? \ | ||
| 289 | 1 : ({ local_irq_restore(flags); 0; }); \ | ||
| 290 | }) | ||
| 291 | |||
| 285 | /* | 292 | /* |
| 286 | * Locks two spinlocks l1 and l2. | 293 | * Locks two spinlocks l1 and l2. |
| 287 | * l1_first indicates if spinlock l1 should be taken first. | 294 | * l1_first indicates if spinlock l1 should be taken first. |
