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Re: [dm-devel] [RFC PATCH v2] dm mpath: add a queue_if_no_path timeout



On Wed, Oct 30 2013 at 11:08am -0400,
Frank Mayhar <fmayhar google com> wrote:

> On Tue, 2013-10-29 at 21:02 -0400, Mike Snitzer wrote:
> > Any interest in this or should I just table it for >= v3.14?
> 
> Sorry, I've been busy putting out another fire.  Yes, there's definitely
> still interest.  I grabbed your revised patch and tested with it.
> Unfortunately the timeout doesn't actually fire when requests are queued
> due to queue_if_no_path; IIRC the block request queue timeout logic
> wasn't triggering.  I planned to look into it more deeply figure out why
> but I had to spend all last week fixing a nasty race and hadn't gotten
> back to it yet.

OK, Hannes, any idea why this might be happening?  The patch in question
is here: https://patchwork.kernel.org/patch/3070391/


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