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[PATCH] aoe [1/3]: support multiple AoE listeners 

Always clone incoming skbs, allowing other AoE listeners
to exist in the kernel.

Signed-off-by: "Ed L. Cashin" <ecashin@coraid.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Ed L. Cashin 2006-02-07 11:26:39 -05:00 committed by Greg Kroah-Hartman
parent 1c6f3fcac0
commit 5dc401ee74
1 changed files with 5 additions and 17 deletions
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22
drivers/block/aoe/aoenet.c
View File

@ -92,18 +92,6 @@ mac_addr(char addr[6])
return __be64_to_cpu(n);
}
static struct sk_buff *
skb_check(struct sk_buff *skb)
{
if (skb_is_nonlinear(skb))
if ((skb = skb_share_check(skb, GFP_ATOMIC)))
if (skb_linearize(skb, GFP_ATOMIC) < 0) {
dev_kfree_skb(skb);
return NULL;
}
return skb;
}
void
aoenet_xmit(struct sk_buff *sl)
{
@ -125,14 +113,14 @@ aoenet_rcv(struct sk_buff *skb, struct net_device *ifp, struct packet_type *pt,
struct aoe_hdr *h;
u32 n;
skb = skb_check(skb);
if (!skb)
skb = skb_share_check(skb, GFP_ATOMIC);
if (skb == NULL)
return 0;
if (skb_is_nonlinear(skb))
if (skb_linearize(skb, GFP_ATOMIC) < 0)
goto exit;
if (!is_aoe_netif(ifp))
goto exit;
//skb->len += ETH_HLEN; /* (1) */
skb_push(skb, ETH_HLEN); /* (1) */
h = (struct aoe_hdr *) skb->mac.raw;