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[xfs-masters] Re: [2.6 patch] i386: always use 4k stacks

To: Neil Brown <neilb@xxxxxxx>
Subject: [xfs-masters] Re: [2.6 patch] i386: always use 4k stacks
From: Dave Jones <davej@xxxxxxxxxx>
Date: Thu, 15 Dec 2005 22:06:24 -0500
Cc: Adrian Bunk <bunk@xxxxxxxxx>, Andrew Morton <akpm@xxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, arjan@xxxxxxxxxxxxx, xfs-masters@xxxxxxxxxxx, nathans@xxxxxxx
In-reply-to: <17314.11514.650036.686071@cse.unsw.edu.au>
Mail-followup-to: Dave Jones <davej@xxxxxxxxxx>, Neil Brown <neilb@xxxxxxx>, Adrian Bunk <bunk@xxxxxxxxx>, Andrew Morton <akpm@xxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, arjan@xxxxxxxxxxxxx, xfs-masters@xxxxxxxxxxx, nathans@xxxxxxx
References: <20051215212447.GR23349@stusta.de> <20051215140013.7d4ffd5b.akpm@osdl.org> <20051215223000.GU23349@stusta.de> <20051215231538.GF3419@redhat.com> <20051216004740.GV23349@stusta.de> <20051216005056.GG3419@redhat.com> <17314.11514.650036.686071@cse.unsw.edu.au>
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On Fri, Dec 16, 2005 at 01:56:58PM +1100, Neil Brown wrote:

 > It turns out this is because it puts a 'struct iattr' on the stack so
 > it can kill suid if needed.  The following patch saves about 50 bytes
 > off the stack in this call path.

See! it *was* worth Adrian bringing up the "kill 8kb stacks" patch again :-)

                Dave


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