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Re: [dm-devel] [PATCH 14/14] barriers



On Mon, Feb 23, 2009 at 02:23:00PM -0500, Mikulas Patocka wrote:
> DM_ENDIO_REQUEUE doesn't work and I doubt that it can be made work with
> barriers.
 
Didn't we discuss this before?
We *require* DM_ENDIO_REQUEUE functionality - I can't apply a patch that
breaks it.  But it is not something that can be used arbitrarily - it is
only used in situations where core dm is firmly in control (and I/O cannot get
through to the device e.g. all paths down in multipath) and I don't see why it
can't continue to work with barriers.

I hope it's just the comment that is wrong here - or does the patch need
updating?

Alasdair
-- 
agk redhat com


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