This patch introduces sndbuf size check before memory allocation for
send buffer.
signed-off-by: Satoshi Oshima <[EMAIL PROTECTED]>
signed-off-by: Hideo Aoki <[EMAIL PROTECTED]>
---
ip_output.c | 5 +++++
1 file changed, 5 insertions(+)
diff -pruN net-2.6/net/ipv4/ip_output.c
net-2.6-udp-take9a2-p1/net/ipv4/ip_output.c
--- net-2.6/net/ipv4/ip_output.c 2007-11-14 10:49:06.000000000 -0500
+++ net-2.6-udp-take9a2-p1/net/ipv4/ip_output.c 2007-11-27 11:11:37.000000000
-0500
@@ -1004,6 +1004,11 @@ alloc_new_skb:
frag = &skb_shinfo(skb)->frags[i];
}
} else if (i < MAX_SKB_FRAGS) {
+ if (atomic_read(&sk->sk_wmem_alloc) + PAGE_SIZE
+ > 2 * sk->sk_sndbuf) {
+ err = -ENOBUFS;
+ goto error;
+ }
if (copy > PAGE_SIZE)
copy = PAGE_SIZE;
page = alloc_pages(sk->sk_allocation, 0);
--
Hitachi Computer Products (America) Inc.
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