[PATCH] node-aware skb allocation

Node-aware allocation of skbs for the receive path.

Details:

  - __alloc_skb gets a new node argument and cals the node-aware
    slab functions with it.
  - netdev_alloc_skb passed the node number it gets from dev_to_node
    to it, everyone else passes -1 (any node)

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Christoph Lameter <clameter@engr.sgi.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index a05a5f7c0b73..1d649f3eb006 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -332,17 +332,17 @@ struct sk_buff {
 extern void kfree_skb(struct sk_buff *skb);
 extern void            __kfree_skb(struct sk_buff *skb);
 extern struct sk_buff *__alloc_skb(unsigned int size,
-                                   gfp_t priority, int fclone);
+                                   gfp_t priority, int fclone, int node);
 static inline struct sk_buff *alloc_skb(unsigned int size,
                                         gfp_t priority)
 {
-        return __alloc_skb(size, priority, 0);
+        return __alloc_skb(size, priority, 0, -1);
 }
 
 static inline struct sk_buff *alloc_skb_fclone(unsigned int size,
                                                gfp_t priority)
 {
-        return __alloc_skb(size, priority, 1);
+        return __alloc_skb(size, priority, 1, -1);
 }
 
 extern struct sk_buff *alloc_skb_from_cache(kmem_cache_t *cp,