diff mbox

[net-next-2.6] tcp: tso_fragment() might avoid GFP_ATOMIC

Message ID 1277377222.2816.296.camel@edumazet-laptop
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Eric Dumazet June 24, 2010, 11 a.m. UTC 
We can pass a gfp argument to tso_fragment() and avoid GFP_ATOMIC
allocations sometimes.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
---
 net/ipv4/tcp_output.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)



--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Comments

David Miller June 29, 2010, 6:38 a.m. UTC | #1 
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 24 Jun 2010 13:00:22 +0200

> We can pass a gfp argument to tso_fragment() and avoid GFP_ATOMIC
> allocations sometimes.
> 
> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>

Applied.

Slow down Eric, you're on fire :-)
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
diff mbox

Patch

diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 51d316d..25ff62e 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -1460,7 +1460,7 @@  int tcp_may_send_now(struct sock *sk)
  * packet has never been sent out before (and thus is not cloned).
  */
 static int tso_fragment(struct sock *sk, struct sk_buff *skb, unsigned int len,
-			unsigned int mss_now)
+			unsigned int mss_now, gfp_t gfp)
 {
 	struct sk_buff *buff;
 	int nlen = skb->len - len;
@@ -1470,7 +1470,7 @@  static int tso_fragment(struct sock *sk, struct sk_buff *skb, unsigned int len,
 	if (skb->len != skb->data_len)
 		return tcp_fragment(sk, skb, len, mss_now);
 
-	buff = sk_stream_alloc_skb(sk, 0, GFP_ATOMIC);
+	buff = sk_stream_alloc_skb(sk, 0, gfp);
 	if (unlikely(buff == NULL))
 		return -ENOMEM;
 
@@ -1768,7 +1768,7 @@  static int tcp_write_xmit(struct sock *sk, unsigned int mss_now, int nonagle,
 						    cwnd_quota);
 
 		if (skb->len > limit &&
-		    unlikely(tso_fragment(sk, skb, limit, mss_now)))
+		    unlikely(tso_fragment(sk, skb, limit, mss_now, gfp)))
 			break;
 
 		TCP_SKB_CB(skb)->when = tcp_time_stamp;