Re: [PATCH 1/1] IB/iSER-Target: Release connection resources properly when receiving RDMA_CM_EVENT_DEVICE_REMOVAL

[Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>]

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On Fri, 2016-07-29 at 23:33 +0300, Sagi Grimberg wrote:
> > 
> > When the low level driver exercises the hot unplug they would call
> > rdma_cm cma_remove_one which would fire DEVICE_REMOVAL event to all
> > cma
> > consumers. Now, if consumer doesn't make sure they destroy all IB
> > objects created on that IB device instance prior to finalizing all
> > processing of DEVICE_REMOVAL callback, rdma_cm will let the lld to
> > de-register with IB core and destroy the IB device instance. And if
> > the
> > consumer calls (say) ib_dereg_mr(), it will crash since that dev
> > object
> > is NULL.
> 
> Yea... this used to work but sort of broke somewhere...
> 
> Thanks Raju, the patch looks good,
> 
> Acked-by: Sagi Grimberg <sagi-NQWnxTmZq1alnMjI0IkVqw@public.gmane.org>
> 
> Doug,
> 
> Can you add a stable tag to this when picking it up?
> 

I can add a stable tag, but it helps to know what versions of stable it
is expected to apply to.

-- 
Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
              GPG KeyID: 0E572FDD

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