diff mbox

[RFC,5/5] net: add FCLONE_SCRATCH use to ipv6 udp path

Message ID 1319745221-30880-6-git-send-email-nhorman@tuxdriver.com
State RFC, archived
Delegated to: David Miller
Headers show

Commit Message

Neil Horman Oct. 27, 2011, 7:53 p.m. UTC 
From: root <root@amd-dinar-01.lab.bos.redhat.com>

Like the ipv4 path, the ipv6 path can benefit from this change by taking
advantage of the unused space at the tail of an skbuffs data area.  Mark ipv6
udp multicast frames as being elligible for scratch fcloning.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
CC: "David S. Miller" <davem@davemloft.net>
---
 net/ipv6/udp.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
diff mbox

Patch

diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index f4ca0a5..dda6661 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -645,6 +645,8 @@  static int __udp6_lib_mcast_deliver(struct net *net, struct sk_buff *skb,
 	int dif;
 	unsigned int i, count = 0;
 
+	skb_make_fclone_scratch(skb);
+
 	spin_lock(&hslot->lock);
 	sk = sk_nulls_head(&hslot->head);
 	dif = inet6_iif(skb);