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Re: cache+barriers vs cache+nobarriers vs disabled cache+barriers vs dis

To: linux-xfs@xxxxxxxxxxx
Subject: Re: cache+barriers vs cache+nobarriers vs disabled cache+barriers vs disabled cache+nobarriers
From: Martin Steigerwald <Martin@xxxxxxxxxxxx>
Date: Thu, 15 Mar 2007 14:07:34 +0100
In-reply-to: <200703151339.36259.Martin@lichtvoll.de>
References: <20070315092220.1B09B193FE@mail.edu.haifa.ac.il> <200703151339.36259.Martin@lichtvoll.de>
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Am Donnerstag 15 März 2007 schrieb Martin Steigerwald:

> But why do you want to disable write cache in the first case? As long
> as you are using 2.6.17.7 or later you can safely enable barriers and
> and write cache. 

Hello again, Leon,

of couse using write barriers is only possible if the hardware 
requirements (cache flushes or similar mechanisms) are met. XFS complains 
if it can't use barriers. See dmesg or log for details.

It seems that the mailinglist software broke my GPG signature. It was 
correct as I sent out the mail.

Regards,
-- 
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
GPG: 03B0 0D6C 0040 0710 4AFA  B82F 991B EAAC A599 84C7


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