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[I/OAT]: Make sk_eat_skb I/OAT aware.

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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>
This commit is contained in:
Chris Leech 2006-05-23 18:01:28 -07:00 committed by David S. Miller
parent 0e4b4992b8
commit 624d116473
4 changed files with 19 additions and 8 deletions
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13
include/net/sock.h
View File

@ -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 * This routine must be called with interrupts disabled or with the socket
* locked so that the sk_buff queue operation is ok. * 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); __skb_unlink(skb, &sk->sk_receive_queue);
__kfree_skb(skb); __kfree_skb(skb);
} }
#endif
extern void sock_enable_timestamp(struct sock *sk); extern void sock_enable_timestamp(struct sock *sk);
extern int sock_get_timestamp(struct sock *, struct timeval __user *); extern int sock_get_timestamp(struct sock *, struct timeval __user *);

4
net/dccp/proto.c
View File

@ -719,7 +719,7 @@ int dccp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
} }
dccp_pr_debug("packet_type=%s\n", dccp_pr_debug("packet_type=%s\n",
dccp_packet_name(dh->dccph_type)); dccp_packet_name(dh->dccph_type));
sk_eat_skb(sk, skb); sk_eat_skb(sk, skb, 0);
verify_sock_status: verify_sock_status:
if (sock_flag(sk, SOCK_DONE)) { if (sock_flag(sk, SOCK_DONE)) {
len = 0; len = 0;
@ -773,7 +773,7 @@ verify_sock_status:
} }
found_fin_ok: found_fin_ok:
if (!(flags & MSG_PEEK)) if (!(flags & MSG_PEEK))
sk_eat_skb(sk, skb); sk_eat_skb(sk, skb, 0);
break; break;
} while (1); } while (1);
out: out:

8
net/ipv4/tcp.c
View File

@ -1072,11 +1072,11 @@ int tcp_read_sock(struct sock *sk, read_descriptor_t *desc,
break; break;
} }
if (skb->h.th->fin) { if (skb->h.th->fin) {
sk_eat_skb(sk, skb); sk_eat_skb(sk, skb, 0);
++seq; ++seq;
break; break;
} }
sk_eat_skb(sk, skb); sk_eat_skb(sk, skb, 0);
if (!desc->count) if (!desc->count)
break; break;
} }
@ -1356,14 +1356,14 @@ skip_copy:
if (skb->h.th->fin) if (skb->h.th->fin)
goto found_fin_ok; goto found_fin_ok;
if (!(flags & MSG_PEEK)) if (!(flags & MSG_PEEK))
sk_eat_skb(sk, skb); sk_eat_skb(sk, skb, 0);
continue; continue;
found_fin_ok: found_fin_ok:
/* Process the FIN. */ /* Process the FIN. */
++*seq; ++*seq;
if (!(flags & MSG_PEEK)) if (!(flags & MSG_PEEK))
sk_eat_skb(sk, skb); sk_eat_skb(sk, skb, 0);
break; break;
} while (len > 0); } while (len > 0);

2
net/llc/af_llc.c
View File

@ -789,7 +789,7 @@ static int llc_ui_recvmsg(struct kiocb *iocb, struct socket *sock,
continue; continue;
if (!(flags & MSG_PEEK)) { if (!(flags & MSG_PEEK)) {
sk_eat_skb(sk, skb); sk_eat_skb(sk, skb, 0);
*seq = 0; *seq = 0;
} }
} while (len > 0); } while (len > 0);