linux-kernel - Re: Proposal: make RAID6 code optional

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Message-ID: <20090422185703.GF13280@skl-net.de>
Date:	Wed, 22 Apr 2009 20:57:03 +0200
From:	Andre Noll <maan@...temlinux.org>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Bill Davidsen <davidsen@....com>,
	Matti Aarnio <matti.aarnio@...iler.org>,
	Jesper Juhl <jj@...osbits.net>,
	Prakash Punnoor <prakash@...noor.de>,
	Michael Tokarev <mjt@....msk.ru>, linux-kernel@...r.kernel.org,
	linux-raid@...r.kernel.org, neilb@...e.de
Subject: Re: Proposal: make RAID6 code optional

On 11:39, H. Peter Anvin wrote:
> Yes, I believe it would be easier than having dynamically allocated 
> arrays.  Dynamically generated arrays using static memory allocations 
> (bss) is one thing, but that would only reduce size of the module on 
> disk, which I don't think anyone considers a problem.

We would save 64K of RAM in the raid5-only case if we'd defer the
allocation of the multiplication table until the first raid6 array
is about to be started.


Andre
-- 
The only person who always got his work done by Friday was Robinson Crusoe

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