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write barrier and USB devices

To: linux-xfs@xxxxxxxxxxx
Subject: write barrier and USB devices
From: Martin Steigerwald <Martin@xxxxxxxxxxxx>
Date: Fri, 30 Mar 2007 15:23:57 +0200
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Hello!

Does the usb mass storage driver support write barriers?

I think it does, since XFS doesn't complain:

---------------------------------------------------------------------
shambala:~> mount -o barrier /dev/sdb2 /mnt/daten
(note barrier is default since 2.6.17, but anyway)

shambala:~> tail -f /var/log/syslog
[...]
Mar 30 15:11:59 shambala kernel: XFS mounting filesystem sdb2
Mar 30 15:11:59 shambala kernel: Ending clean XFS mount for filesystem: 
sdb2
---------------------------------------------------------------------

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


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