netdev - [PATCH] NET : Adding SO_TIMESTAMPNS / SCM

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Message-Id: <200703091939.42656.dada1@cosmosbay.com>
Date:	Fri, 9 Mar 2007 19:39:42 +0100
From:	Eric Dumazet <dada1@...mosbay.com>
To:	David Miller <davem@...emloft.net>
Cc:	netdev@...r.kernel.org, linux-arch@...r.kernel.org
Subject: [PATCH] NET : Adding SO_TIMESTAMPNS / SCM_TIMESTAMPNS support

Hi David

This patch is against net-2.6.22 git tree.

Thank you

[PATCH] NET : Adding SO_TIMESTAMPNS / SCM_TIMESTAMPNS support

Now that network timestamps use ktime_t infrastructure, we can add a new 
SOL_SOCKET sockopt  SO_TIMESTAMPNS.

This command is similar to SO_TIMESTAMP, but permits transmission of 
a 'timespec struct' instead of a 'timeval struct' control message. 
(nanosecond resolution instead of microsecond)

Control message is labelled SCM_TIMESTAMPNS instead of SCM_TIMESTAMP

A socket cannot mix SO_TIMESTAMP and SO_TIMESTAMPNS : the two modes are 
mutually exclusive.

sock_recv_timestamp() became too big to be fully inlined so I added a 
__sock_recv_timestamp() helper function.

Signed-off-by: Eric Dumazet <dada1@...mosbay.com>
CC: linux-arch@...r.kernel.org

View attachment "SCM_TIMESTAMPNS.patch" of type "text/plain" (12347 bytes)