aboutsummaryrefslogtreecommitdiff
path: root/net/core/dev.c
diff options
context:
space:
mode:
authorHerbert Xu <herbert@gondor.apana.org.au>2009-01-14 20:40:03 -0800
committerDavid S. Miller <davem@davemloft.net>2009-01-14 20:40:03 -0800
commitf557206800801410c30e53ce7a27219b2c4cf0ba (patch)
tree0c18a5766787a9dcc038eb60c8cbdf78c585ff6b /net/core/dev.c
parentfc8c7dc1b29560c016a67a34ccff32a712b5aa86 (diff)
gro: Fix page ref count for skbs freed normally
When an skb with page frags is merged into an existing one, we cannibalise its reference count. This is OK when the skb is reused because we set nr_frags to zero in that case. However, for the case where the skb is freed through kfree_skb, we didn't clear nr_frags which causes the page to be freed prematurely. This is fixed by moving the skb resetting into skb_gro_receive. Reported-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/dev.c')
-rw-r--r--net/core/dev.c6
1 files changed, 0 insertions, 6 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index 7dec715293b..60377b6c0a8 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2491,12 +2491,6 @@ EXPORT_SYMBOL(napi_gro_receive);
void napi_reuse_skb(struct napi_struct *napi, struct sk_buff *skb)
{
- skb_shinfo(skb)->nr_frags = 0;
-
- skb->len -= skb->data_len;
- skb->truesize -= skb->data_len;
- skb->data_len = 0;
-
__skb_pull(skb, skb_headlen(skb));
skb_reserve(skb, NET_IP_ALIGN - skb_headroom(skb));