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-rw-r--r--include/linux/spinlock.h17
1 files changed, 14 insertions, 3 deletions
diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h
index 3190997df9ca..e089157dcf97 100644
--- a/include/linux/spinlock.h
+++ b/include/linux/spinlock.h
@@ -451,9 +451,20 @@ extern int _atomic_dec_and_lock_irqsave(atomic_t *atomic, spinlock_t *lock,
451#define atomic_dec_and_lock_irqsave(atomic, lock, flags) \ 451#define atomic_dec_and_lock_irqsave(atomic, lock, flags) \
452 __cond_lock(lock, _atomic_dec_and_lock_irqsave(atomic, lock, &(flags))) 452 __cond_lock(lock, _atomic_dec_and_lock_irqsave(atomic, lock, &(flags)))
453 453
454int alloc_bucket_spinlocks(spinlock_t **locks, unsigned int *lock_mask, 454int __alloc_bucket_spinlocks(spinlock_t **locks, unsigned int *lock_mask,
455 size_t max_size, unsigned int cpu_mult, 455 size_t max_size, unsigned int cpu_mult,
456 gfp_t gfp); 456 gfp_t gfp, const char *name,
457 struct lock_class_key *key);
458
459#define alloc_bucket_spinlocks(locks, lock_mask, max_size, cpu_mult, gfp) \
460 ({ \
461 static struct lock_class_key key; \
462 int ret; \
463 \
464 ret = __alloc_bucket_spinlocks(locks, lock_mask, max_size, \
465 cpu_mult, gfp, #locks, &key); \
466 ret; \
467 })
457 468
458void free_bucket_spinlocks(spinlock_t *locks); 469void free_bucket_spinlocks(spinlock_t *locks);
459 470