[dm-devel] Re: [PATCH] Implement barrier support for single device DM devices
David Chinner
dgc at sgi.com
Tue Feb 19 11:12:22 UTC 2008
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
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