[precise/trusty/utopic SRU] [1/1] drivers:scsi:storvsc: Fix a bug in handling ring buffer failures that may result in I/O freeze

[Andy Whitcroft]

On Wed, Dec 10, 2014 at 12:16:36PM +0100, Stefan Bader wrote:
> It looks reasonable, just seems to have no indication where it comes from.

Doh.

This is on its way upstream via the SCSI tree.  The patch there as
presented is an unmodified version of that patche, and applies identically
all the way back to P.  Due to the severity of the bug we have been asked
to take it prior to it making it upstream, so that it will make the next
SRU cycle.  This request comes direct from the upstream maintainer of
the hyper-v storage sub-system.

Obviously it will need good testing during the SRU cycle, which Ben's
team can handle.

-apw