From: Eric Dumazet <eric.dumazet@gmail.com>
To: Yuchung Cheng <ycheng@google.com>
Cc: davem@davemloft.net, hkchu@google.com, edumazet@google.com,
ncardwell@google.com, sivasankar@cs.ucsd.edu,
netdev@vger.kernel.org
Subject: Re: [PATCH v2 5/7] net-tcp: Fast Open client - sendmsg(MSG_FASTOPEN)
Date: Wed, 18 Jul 2012 23:30:09 +0200 [thread overview]
Message-ID: <1342647009.2626.3713.camel@edumazet-glaptop> (raw)
In-Reply-To: <1342645307-17772-6-git-send-email-ycheng@google.com>
On Wed, 2012-07-18 at 14:01 -0700, Yuchung Cheng wrote:
> sendmsg() (or sendto()) with MSG_FASTOPEN is a combo of connect(2)
> and write(2). The application should replace connect() with it to
> send data in the opening SYN packet.
>
> index 25d6322..90297db 100644
> --- a/include/linux/socket.h
> +++ b/include/linux/socket.h
> @@ -276,6 +276,7 @@ struct ucred {
> #else
> #define MSG_CMSG_COMPAT 0 /* We never have 32 bit fixups */
> #endif
> +#define MSG_FASTOPEN 0x20000000 /* Send data in TCP SYN */
Could you put MSG_FASTOPEN before MSG_CMSG_CLOEXEC ?
next prev parent reply other threads:[~2012-07-18 21:30 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-18 21:01 [PATCH v2 0/7] TCP Fast Open client Yuchung Cheng
2012-07-18 21:01 ` [PATCH v2 1/7] net-tcp: Fast Open base Yuchung Cheng
2012-07-18 21:16 ` Eric Dumazet
2012-07-18 21:01 ` [PATCH v2 2/7] net-tcp: Fast Open client - cookie cache Yuchung Cheng
2012-07-18 21:16 ` Eric Dumazet
2012-07-18 21:54 ` Eric Dumazet
2012-07-18 21:01 ` [PATCH v2 3/7] net-tcp: Fast Open client - sending SYN-data Yuchung Cheng
2012-07-18 21:23 ` Eric Dumazet
2012-07-18 21:01 ` [PATCH v2 4/7] net-tcp: Fast Open client - receiving SYN-ACK Yuchung Cheng
2012-07-18 21:27 ` Eric Dumazet
2012-07-18 21:01 ` [PATCH v2 5/7] net-tcp: Fast Open client - sendmsg(MSG_FASTOPEN) Yuchung Cheng
2012-07-18 21:30 ` Eric Dumazet [this message]
2012-07-18 21:01 ` [PATCH v2 6/7] net-tcp: Fast Open client - detecting SYN-data drops Yuchung Cheng
2012-07-18 21:35 ` Eric Dumazet
2012-07-18 21:01 ` [PATCH v2 7/7] net-tcp: Fast Open client - cookie-less mode Yuchung Cheng
2012-07-18 21:36 ` Eric Dumazet
2012-07-27 11:42 ` [PATCH v2 0/7] TCP Fast Open client Michael Kerrisk
2012-07-27 17:28 ` Jerry Chu
2012-07-27 19:06 ` Michael Kerrisk
2012-07-27 19:39 ` Jerry Chu
2012-07-27 19:52 ` Vijay Subramanian
2012-08-16 8:50 ` David Laight
2012-08-16 16:35 ` Rick Jones
2012-08-17 18:15 ` Yuchung Cheng
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