Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754823Ab0LIRMV (ORCPT ); Thu, 9 Dec 2010 12:12:21 -0500 Received: from mail-ww0-f44.google.com ([74.125.82.44]:53817 "EHLO mail-ww0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754287Ab0LIRMT (ORCPT ); Thu, 9 Dec 2010 12:12:19 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=subject:from:to:cc:in-reply-to:references:content-type:date :message-id:mime-version:x-mailer:content-transfer-encoding; b=RH832UKb/2GjgqnwZG15Kk+YFF41B3FscpjreeWplVnQU/TYnd/3mSuCRmwzqpy2Uc S4mmar/xSYm1zMuq4cRCMsl1DKgj0askzONcoIkmSDSNVqj7/TDUvQ2sU9z0qtEqItxV /Zb+yjsnMplNLmMISLa9yE6y7HF/TeTTyowNY= Subject: Re: [PATCH] Document the kernel_recvmsg() function From: Eric Dumazet To: Martin Lucina Cc: linux-kernel@vger.kernel.org, Martin Sustrik In-Reply-To: <20101209161734.GA16822@dezo.moloch.sk> References: <20101209161734.GA16822@dezo.moloch.sk> Content-Type: text/plain; charset="UTF-8" Date: Thu, 09 Dec 2010 18:12:12 +0100 Message-ID: <1291914732.4063.75.camel@edumazet-laptop> Mime-Version: 1.0 X-Mailer: Evolution 2.30.3 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2521 Lines: 75 Le jeudi 09 décembre 2010 à 17:17 +0100, Martin Lucina a écrit : > Hi, > > so, today we spent all day figuring out how the kernel_sendmsg() function > *actually* works. This patch adds some documentation to help the next poor > sod. > Network patches should be sent to netdev@vger.kernel.org and David Miller, as mentioned in MAINTAINERS file : NETWORKING [GENERAL] M: "David S. Miller" L: netdev@vger.kernel.org W: http://www.linuxfoundation.org/en/Net W: http://patchwork.ozlabs.org/project/netdev/list/ T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.git T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6.git S: Maintained F: net/ F: include/net/ F: include/linux/in.h F: include/linux/net.h F: include/linux/netdevice.h > -mato > > From b29ccddeec4b782d710ffe34e0e5e4a0f5e9c24b Mon Sep 17 00:00:00 2001 > From: Martin Lucina > Date: Thu, 9 Dec 2010 17:11:18 +0100 > Subject: [PATCH] Document the kernel_recvmsg() function > > Signed-off-by: Martin Lucina > --- > net/socket.c | 15 +++++++++++++++ > 1 files changed, 15 insertions(+), 0 deletions(-) > > diff --git a/net/socket.c b/net/socket.c > index 3ca2fd9..b17333d 100644 > --- a/net/socket.c > +++ b/net/socket.c > @@ -732,6 +732,21 @@ static int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg, > return ret; > } > > +/** > + * kernel_recvmsg() - Receive a message from a socket (kernel space) no need for () > + * @sock: The socket to receive the message from > + * @msg: Received message > + * @vec: Input s/g array for message data > + * @num: Size of input s/g array > + * @size: Number of bytes to read > + * @flags: Message flags (MSG_DONTWAIT, etc...) > + * > + * On return the msg structure contains the scatter/gather array passed in the > + * vec argument. The array is modified so that it consists of the unfilled > + * portion of the original array. > + * > + * The returned value is the total number of bytes received, or an error. > + */ > int kernel_recvmsg(struct socket *sock, struct msghdr *msg, > struct kvec *vec, size_t num, size_t size, int flags) > { -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/