linux-ext4 - Re: barriers off by default?

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Message-ID: <20080515144355.GB19325@atrey.karlin.mff.cuni.cz>
Date:	Thu, 15 May 2008 16:43:55 +0200
From:	Jan Kara <jack@...e.cz>
To:	Eric Sandeen <sandeen@...hat.com>
Cc:	ext4 development <linux-ext4@...r.kernel.org>
Subject: Re: barriers off by default?

> As I look at my shiny new 500G disks with 32MB of cache, I find myself
> wondering why the default for ext3 and ext4 is to have barriers disabled.
> 
> This is a pretty dangerous default w.r.t. filesystem integrity on power
> loss, no?
  JFYI: SUSE kernel carries for ages a patch which changes this default.
I'd be more than happy to drop it ;).

								Honza
-- 
Jan Kara <jack@...e.cz>
SuSE CR Labs
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