From: David Chinner <dgc@sgi.com>
To: Michael Tokarev <mjt@tls.msk.ru>,
Andi Kleen <andi@firstfloor.org>,
dm-devel@redhat.com, linux-kernel@vger.kernel.org,
Milan Broz <mbroz@redhat.com>
Subject: Re: [PATCH] Implement barrier support for single device DM devices
Date: Tue, 19 Feb 2008 22:12:22 +1100 [thread overview]
Message-ID: <20080219111222.GE155407@sgi.com> (raw)
In-Reply-To: <20080219023900.GB4066@agk.fab.redhat.com>
On Tue, Feb 19, 2008 at 02:39:00AM +0000, Alasdair G Kergon wrote:
> > For example, how safe
> > xfs is if barriers are not supported or turned off?
>
> The last time we tried xfs with dm it didn't seem to notice -EOPNOTSUPP
> everywhere it should => recovery may find corruption.
Bug reports, please. What we don't know about, we can't fix.
As of this commit:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=0bfefc46dc028df60120acdb92062169c9328769
XFS should be handling all cases of -EOPNOTSUPP for barrier
I/Os. If you are still having problems, please let us know.
Cheers,
Dave.
--
Dave Chinner
Principal Engineer
SGI Australian Software Group
prev parent reply other threads:[~2008-02-19 11:12 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-15 12:08 [PATCH] Implement barrier support for single device DM devices Andi Kleen
2008-02-15 12:20 ` Alasdair G Kergon
2008-02-15 13:07 ` Michael Tokarev
2008-02-15 14:20 ` Andi Kleen
2008-02-15 14:12 ` Alasdair G Kergon
2008-02-15 14:12 ` [dm-devel] " Alasdair G Kergon
2008-02-15 15:34 ` Andi Kleen
2008-02-15 15:34 ` [dm-devel] " Andi Kleen
2008-02-15 15:31 ` Alan Cox
2008-02-15 15:31 ` [dm-devel] " Alan Cox
2008-02-18 12:48 ` Ric Wheeler
2008-02-18 12:48 ` [dm-devel] " Ric Wheeler
2008-02-18 13:24 ` Michael Tokarev
2008-02-18 13:52 ` Ric Wheeler
2008-02-18 13:52 ` [dm-devel] " Ric Wheeler
2008-02-19 2:45 ` Alasdair G Kergon
2008-02-19 2:45 ` [dm-devel] " Alasdair G Kergon
2008-05-16 19:55 ` Mike Snitzer
2008-05-16 19:55 ` [dm-devel] " Mike Snitzer
2008-05-16 21:48 ` Andi Kleen
2008-05-16 21:48 ` [dm-devel] " Andi Kleen
2008-02-18 22:16 ` David Chinner
2008-02-19 2:56 ` Alasdair G Kergon
2008-02-19 2:56 ` [dm-devel] " Alasdair G Kergon
2008-02-19 5:36 ` David Chinner
2008-02-19 5:36 ` David Chinner
2008-02-19 9:43 ` Andi Kleen
2008-02-19 9:43 ` Andi Kleen
2008-02-19 7:19 ` Jeremy Higdon
2008-02-19 7:19 ` [dm-devel] " Jeremy Higdon
2008-02-19 7:58 ` Michael Tokarev
2008-02-20 13:38 ` Ric Wheeler
2008-02-20 13:38 ` [dm-devel] " Ric Wheeler
2008-02-21 3:29 ` Neil Brown
2008-02-21 3:29 ` [dm-devel] " Neil Brown
2008-02-21 3:39 ` Neil Brown
2008-02-17 23:31 ` David Chinner
2008-02-19 2:39 ` Alasdair G Kergon
2008-02-19 2:39 ` Alasdair G Kergon
2008-02-19 11:12 ` David Chinner [this message]
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