From mboxrd@z Thu Jan  1 00:00:00 1970
From: Joe Lawrence <joe.lawrence@stratus.com>
Subject: Re: [PATCH 0/6] qla2xxx device removal fixups
Date: Tue, 26 Aug 2014 09:20:55 -0400
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Cc: Joe Lawrence <joe.lawrence@stratus.com>, Chad Dupuis <chad.dupuis@qlogic.com>, Giridhar Malavali <giridhar.malavali@qlogic.com>, Saurav Kashyap <saurav.kashyap@qlogic.com>, Don Zickus <dzickus@redhat.com>, Prarit Bhargava <prarit@redhat.com>, Bill Kuzeja <william.kuzeja@stratus.com>, Dave Bulkow <david.bulkow@stratus.com>, Christoph Hellwig <hch@lst.de>

On Wed, 18 Jun 2014 10:02:13 -0400
Joe Lawrence <joe.lawrence@stratus.com> wrote:

> Hi Chad, Giri, et al.
> 
> Stratus has been testing the upstream qla2xxx driver against surprise
> device removal and has found a few minor issues along the way.  With
> this patchset, results have been good.  Although the following changes
> may be most interesting on a Stratus platform, they should be applicable
> to general hotplug scenarios on other hardware.
> 
> The first two patches are independent from the others and can be
> reviewed as such.  One fixes up a use-after-free and the other
> consolidates some code.

Patch 1 corrects a bug introduced by commit fe1b806, which has made its
way into three linux-stable releases:

% git tag --contains fe1b806 | grep '^v3.[0-9]*$'
v3.14
v3.15
v3.16

> The final four patches are more invasive and modify the scsi_qla_host
> structure to avoid device removal race conditions.  These changes were
> written to demonstrate the problem at hand and minimally fix them in
> order to continue testing.  (For example, adding completely a new
> pci_flags member to scsi_qla_host is probably overkill.) 
> 
> We would welcome any feedback or questions about our testing.

Chad ack'd the series on 28 Jul 2014.  Any chance this can make into
hch's queue for 3.18?

Regards,

-- Joe