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authorChris Leech <christopher.leech@intel.com>2006-05-23 18:01:28 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2006-06-17 21:25:52 -0700
commit624d1164730d58a494cc5aa4afa37d02c41e83a7 (patch)
treeb6cc0776a826f8f2611eff41149410c7f4ccb355
parent0e4b4992b8007c6b62ec143cbbb292f98813ca11 (diff)
downloadop-kernel-dev-624d1164730d58a494cc5aa4afa37d02c41e83a7.zip
op-kernel-dev-624d1164730d58a494cc5aa4afa37d02c41e83a7.tar.gz
[I/OAT]: Make sk_eat_skb I/OAT aware.
Add an extra argument to sk_eat_skb, and make it move early copied packets to the async_wait_queue instead of freeing them. Signed-off-by: Chris Leech <christopher.leech@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--include/net/sock.h13
-rw-r--r--net/dccp/proto.c4
-rw-r--r--net/ipv4/tcp.c8
-rw-r--r--net/llc/af_llc.c2
4 files changed, 19 insertions, 8 deletions
diff --git a/include/net/sock.h b/include/net/sock.h
index 90c65cb..75b0e97 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1273,11 +1273,22 @@ sock_recv_timestamp(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
* This routine must be called with interrupts disabled or with the socket
* locked so that the sk_buff queue operation is ok.
*/
-static inline void sk_eat_skb(struct sock *sk, struct sk_buff *skb)
+#ifdef CONFIG_NET_DMA
+static inline void sk_eat_skb(struct sock *sk, struct sk_buff *skb, int copied_early)
+{
+ __skb_unlink(skb, &sk->sk_receive_queue);
+ if (!copied_early)
+ __kfree_skb(skb);
+ else
+ __skb_queue_tail(&sk->sk_async_wait_queue, skb);
+}
+#else
+static inline void sk_eat_skb(struct sock *sk, struct sk_buff *skb, int copied_early)
{
__skb_unlink(skb, &sk->sk_receive_queue);
__kfree_skb(skb);
}
+#endif
extern void sock_enable_timestamp(struct sock *sk);
extern int sock_get_timestamp(struct sock *, struct timeval __user *);
diff --git a/net/dccp/proto.c b/net/dccp/proto.c
index 2e0ee83..5317fd3 100644
--- a/net/dccp/proto.c
+++ b/net/dccp/proto.c
@@ -719,7 +719,7 @@ int dccp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
}
dccp_pr_debug("packet_type=%s\n",
dccp_packet_name(dh->dccph_type));
- sk_eat_skb(sk, skb);
+ sk_eat_skb(sk, skb, 0);
verify_sock_status:
if (sock_flag(sk, SOCK_DONE)) {
len = 0;
@@ -773,7 +773,7 @@ verify_sock_status:
}
found_fin_ok:
if (!(flags & MSG_PEEK))
- sk_eat_skb(sk, skb);
+ sk_eat_skb(sk, skb, 0);
break;
} while (1);
out:
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 1c0cfd7..4e067d25 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1072,11 +1072,11 @@ int tcp_read_sock(struct sock *sk, read_descriptor_t *desc,
break;
}
if (skb->h.th->fin) {
- sk_eat_skb(sk, skb);
+ sk_eat_skb(sk, skb, 0);
++seq;
break;
}
- sk_eat_skb(sk, skb);
+ sk_eat_skb(sk, skb, 0);
if (!desc->count)
break;
}
@@ -1356,14 +1356,14 @@ skip_copy:
if (skb->h.th->fin)
goto found_fin_ok;
if (!(flags & MSG_PEEK))
- sk_eat_skb(sk, skb);
+ sk_eat_skb(sk, skb, 0);
continue;
found_fin_ok:
/* Process the FIN. */
++*seq;
if (!(flags & MSG_PEEK))
- sk_eat_skb(sk, skb);
+ sk_eat_skb(sk, skb, 0);
break;
} while (len > 0);
diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c
index 5a04db7..7465170 100644
--- a/net/llc/af_llc.c
+++ b/net/llc/af_llc.c
@@ -789,7 +789,7 @@ static int llc_ui_recvmsg(struct kiocb *iocb, struct socket *sock,
continue;
if (!(flags & MSG_PEEK)) {
- sk_eat_skb(sk, skb);
+ sk_eat_skb(sk, skb, 0);
*seq = 0;
}
} while (len > 0);
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