From: Goswin von Brederlow <goswin-v-b@web.de>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Bill Davidsen <davidsen@tmr.com>, Matti Aarnio <matti.aarnio@zmailer.org>,
       Jesper Juhl <jj@chaosbits.net>, Prakash Punnoor <prakash@punnoor.de>,
       Michael Tokarev <mjt@tls.msk.ru>, linux-kernel@vger.kernel.org,
       linux-raid@vger.kernel.org, neilb@suse.de
Subject: Re: Proposal: make RAID6 code optional
References: <200904180946.27722.prakash@punnoor.de>
	<49E98AD2.8060601@msgid.tls.msk.ru>
	<200904181117.03418.prakash@punnoor.de>
	<alpine.LNX.2.00.0904181551320.16493@swampdragon.chaosbits.net>
	<20090418145850.GD28512@mea-ext.zmailer.org>
	<49EDD11E.2030309@tmr.com> <49EE00F9.6090000@zytor.com>
Date: Wed, 22 Apr 2009 11:01:16 +0200
In-Reply-To: <49EE00F9.6090000@zytor.com> (H. Peter Anvin's message of "Tue,
	21 Apr 2009 10:23:05 -0700")
Message-ID: <87ljptm59f.fsf@frosties.localdomain>
User-Agent: Gnus/5.110006 (No Gnus v0.6) XEmacs/21.4.21 (linux)
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 902
Lines: 26

"H. Peter Anvin" <hpa@zytor.com> writes:

> Bill Davidsen wrote:
>> It would seem that that space could be allocated and populated when
>> raid6 was first used, as part of the initialization. I haven't looked at
>> that code since it was new, so I might be optimistic about doing it that
>> way.
>
> We could use vmalloc() and generate the tables at initialization time.
> However, having a separate module which exports the raid6 declaration
> and uses the raid5 module as a subroutine library seems easier.
>
> 	-hpa

Combine the two.

The raid6 module initializes the tables for raid6 and uses the raid5
module as subroutine library.

MfG
        Goswin
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/