From: Jason Wang <jasowang@redhat.com>
Date: Thu, 30 Jun 2016 06:45:34 +0000 (+0800)
Subject: skb_array: add wrappers for resizing
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=bf900b3dbefee49855c17aa09fb4245346a78fb3;p=linux-beck.git

skb_array: add wrappers for resizing

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/include/linux/skb_array.h b/include/linux/skb_array.h
index 2dd0d1e4ee7e..f4dfade428f0 100644
--- a/include/linux/skb_array.h
+++ b/include/linux/skb_array.h
@@ -161,6 +161,15 @@ static inline int skb_array_resize(struct skb_array *a, int size, gfp_t gfp)
 	return ptr_ring_resize(&a->ring, size, gfp, __skb_array_destroy_skb);
 }
 
+static inline int skb_array_resize_multiple(struct skb_array **rings,
+					    int nrings, int size, gfp_t gfp)
+{
+	BUILD_BUG_ON(offsetof(struct skb_array, ring));
+	return ptr_ring_resize_multiple((struct ptr_ring **)rings,
+					nrings, size, gfp,
+					__skb_array_destroy_skb);
+}
+
 static inline void skb_array_cleanup(struct skb_array *a)
 {
 	ptr_ring_cleanup(&a->ring, __skb_array_destroy_skb);