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Re: md raid1 passes barriers, but xfs doesn't use them?

To: linux-xfs@xxxxxxxxxxx
Subject: Re: md raid1 passes barriers, but xfs doesn't use them?
From: Martin Steigerwald <Martin@xxxxxxxxxxxx>
Date: Tue, 24 Jun 2008 11:31:11 +0200
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Hi Eric!

Am Dienstag 24 Juni 2008 schrieb Eric Sandeen:
> So md raid1 is happy to pass down any barrier writes that it sees, but
> this bit in xfs_mountfs_check_barriers() at mount time:

Interesting. Since when?

On my last test also ext3 disabled barries over device mapper / 
reiserfs[1]. well but I used it with LVM, maybe its different with RAID 
1. I thought this to be a generic device mapper issue.

Did you test with ext3 too?

[1] http://bugzilla.kernel.org/show_bug.cgi?id=9554

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


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