netdev - Re: [RFC PATCH net-2.6.26 (Plan B)] [TCP]: Lower stack usage in tcp4_seq

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Date:	Thu, 24 Apr 2008 01:02:36 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	xemul@...nvz.org
Cc:	yoshfuji@...ux-ipv6.org, netdev@...r.kernel.org
Subject: Re: [RFC PATCH net-2.6.26 (Plan B)] [TCP]: Lower stack usage in
 tcp4_seq_show().

From: Pavel Emelyanov <xemul@...nvz.org>
Date: Tue, 22 Apr 2008 18:35:42 +0400

> YOSHIFUJI Hideaki wrote:
> > tcp4_seq_show() eats about 250 bytes.  By using buffer in seq_file
> > directly, it will be reduced around 100 bytes.
> > 
> > One drawback is higher usage of slab for IPv6 but the format
> > will not change with this patch.
> > 
> > Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@...ux-ipv6.org>
> 
> Plan C: we can follow the Al Viro's proposal about %n like in this patch.
> The same applies to udp, fib (the /proc/net/route file), rt_cache and 
> sctp debug. This is minus ~150-200 bytes for each.
> 
> How do you think?
> 
> Signed-off-by: Pavel Emelyanov <xemul@...nvz.org>

To me, this looks great.  Thanks everyone for working on this.

Patch applied.
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