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tcp: add gfp parameter to tcp_fragment

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tcp_fragment can be called from process context (from tso_fragment).
Add a new gfp parameter to allow it to preserve atomic memory if
possible.

Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Reviewed-by: Christoph Paasch <christoph.paasch@uclouvain.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Octavian Purdila 2014-06-06 17:32:37 +03:00 • committed by David S. Miller
parent 27fa589de5
commit 6cc55e096f
3 changed files with 12 additions and 10 deletions
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5
net/ipv4/tcp_input.c
View file

@ -1167,7 +1167,7 @@ static int tcp_match_skb_to_sack(struct sock *sk, struct sk_buff *skb,
}
pkt_len = new_len;
}
err = tcp_fragment(sk, skb, pkt_len, mss);
err = tcp_fragment(sk, skb, pkt_len, mss, GFP_ATOMIC);
if (err < 0)
return err;
}
@ -2241,7 +2241,8 @@ static void tcp_mark_head_lost(struct sock *sk, int packets, int mark_head)
break;
mss = skb_shinfo(skb)->gso_size;
err = tcp_fragment(sk, skb, (packets - oldcnt) * mss, mss);
err = tcp_fragment(sk, skb, (packets - oldcnt) * mss,
mss, GFP_ATOMIC);
if (err < 0)
break;
cnt = packets;