netdev - Re: [PATCH net-2.6.25 (resend) 1/3] Uninline the __inet

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Message-Id: <20071220.153143.44884827.davem@davemloft.net>
Date:	Thu, 20 Dec 2007 15:31:43 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	xemul@...nvz.org
Cc:	dada1@...mosbay.com, netdev@...r.kernel.org, devel@...nvz.org
Subject: Re: [PATCH net-2.6.25 (resend) 1/3] Uninline the __inet_hash
 function

From: Pavel Emelyanov <xemul@...nvz.org>
Date: Thu, 20 Dec 2007 12:46:07 +0300

> This one is used in quite many places in the networking code and
> seems to big to be inline.
> 
> After the patch net/ipv4/build-in.o loses ~650 bytes:
> add/remove: 2/0 grow/shrink: 0/5 up/down: 461/-1114 (-653)
> function                                     old     new   delta
> __inet_hash_nolisten                           -     282    +282
> __inet_hash                                    -     179    +179
> tcp_sacktag_write_queue                     2255    2254      -1
> __inet_lookup_listener                       284     274     -10
> tcp_v4_syn_recv_sock                         755     493    -262
> tcp_v4_hash                                  389      35    -354
> inet_hash_connect                           1086     599    -487
> 
> This version addresses the issue pointed by Eric, that
> while being inline this function was optimized by gcc
> in respect to the 'listen_possible' argument.
> 
> (Patches 2 and 3 in this series are still applied after this)
> 
> Signed-off-by: Pavel Emelyanov <xemul@...nvz.org>

Applied.
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