netdev - [PATCH] NET : Optimizes inet

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Message-Id: <200703061133.20389.dada1@cosmosbay.com>
Date:	Tue, 6 Mar 2007 11:33:20 +0100
From:	Eric Dumazet <dada1@...mosbay.com>
To:	David Miller <davem@...emloft.net>
Cc:	netdev@...r.kernel.org
Subject: [PATCH] NET : Optimizes inet_getpeer()

Hi David

Please find this patch against net-2.6.22

Thank you

[PATCH] NET : Optimizes inet_getpeer()

1) Some sysctl vars are declared __read_mostly

2) We can avoid updating stack[] when doing an AVL lookup only.

    lookup() macro is extended to receive a second parameter, that may be NULL 
in case of a pure lookup (no need to save the AVL path). This removes 
unnecessary instructions, because compiler knows if this _stack parameter is 
NULL or not.

    text size of net/ipv4/inetpeer.o is 2063 bytes instead of 2107 on x86_64

Signed-off-by: Eric Dumazet <dada1@...mosbay.com>

View attachment "inetpeer.patch" of type "text/plain" (3283 bytes)