From: Luca Coelho <luciano.coelho@xxxxxxxxx>
Signed-off-by: Luca Coelho <luciano.coelho@xxxxxxxxx>
---
backport/backport-include/linux/spinlock.h | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/backport/backport-include/linux/spinlock.h b/backport/backport-include/linux/spinlock.h
index a46f6e33b241..b27f91716ca7 100644
--- a/backport/backport-include/linux/spinlock.h
+++ b/backport/backport-include/linux/spinlock.h
@@ -25,4 +25,21 @@ int alloc_bucket_spinlocks(spinlock_t **locks, unsigned int *lock_mask,
void free_bucket_spinlocks(spinlock_t *locks);
#endif /* LINUX_VERSION_IS_LESS(4,16,0) */
+#if LINUX_VERSION_IS_LESS(4,19,0)
+int __alloc_bucket_spinlocks(spinlock_t **locks, unsigned int *lock_mask,
+ size_t max_size, unsigned int cpu_mult,
+ gfp_t gfp, const char *name,
+ struct lock_class_key *key);
+
+#define alloc_bucket_spinlocks(locks, lock_mask, max_size, cpu_mult, gfp) \
+ ({ \
+ static struct lock_class_key key; \
+ int ret; \
+ \
+ ret = __alloc_bucket_spinlocks(locks, lock_mask, max_size, \
+ cpu_mult, gfp, #locks, &key); \
+ ret; \
+ })
+#endif /* LINUX_VERSION_IS_LESS(4,19,0) */
+
#endif /* __BACKPORT_SPINLOCK_H */
--
2.18.0
--
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