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Re: [dm-devel] [PATCH v5 02/12] dm: Use bioset's front_pad for dm_rq_clone_bio_info



On Sat, Aug 11, 2012 at 03:24:45PM +1000, Joseph Glanville wrote:
> Hi Kent, Tejun
> 
> On 9 August 2012 09:57, Kent Overstreet <koverstreet google com> wrote:
> >> Also, how was this tested?
> >
> > Well, AFAICT the only request based dm target is multipath, and from the
> > documentation I've seen it doesn't appear to work without multipath
> > hardware, or at least I haven't seen it documented how. So, unless
> > there's another user I missed it's not been tested.
> 
> Multipath can be tested quite easily with a loopback scsi target, you
> don't require specialized hardware.
> The easiest way to do this would probably be the built in LIO target +
> open_iscsi initiator.
> 
> I haven't attempted running this current version of the patch series
> but I haven't run into issues with bcache+multipath in the past.

Actually, I bet you have been running this code - do you think you could
check the git log for the version you're running? That'd be awesome if
you are.


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