From: Jason Gunthorpe <jgg@nvidia.com>
To: Eric Farman <farman@linux.ibm.com>
Cc: Matthew Rosato <mjrosato@linux.ibm.com>,
Alex Williamson <alex.williamson@redhat.com>,
Cornelia Huck <cohuck@redhat.com>,
Halil Pasic <pasic@linux.ibm.com>,
Christian Borntraeger <borntraeger@linux.ibm.com>,
Nicolin Chen <nicolinc@nvidia.com>,
linux-s390@vger.kernel.org, kvm@vger.kernel.org
Subject: Re: [PATCH v3 3/3] vfio/ccw: Check return code from subchannel quiesce
Date: Fri, 29 Jul 2022 16:21:20 -0300 [thread overview]
Message-ID: <YuQzMHgvntewpYd3@nvidia.com> (raw)
In-Reply-To: <20220728204914.2420989-4-farman@linux.ibm.com>
On Thu, Jul 28, 2022 at 10:49:14PM +0200, Eric Farman wrote:
> If a subchannel is busy when a close is performed, the subchannel
> needs to be quiesced and left nice and tidy, so nothing unexpected
> (like a solicited interrupt) shows up while in the closed state.
> Unfortunately, the return code from this call isn't checked,
> so any busy subchannel is treated as a failing one.
>
> Fix that, so that the close on a busy subchannel happens normally.
>
> Signed-off-by: Eric Farman <farman@linux.ibm.com>
> Reviewed-by: Matthew Rosato <mjrosato@linux.ibm.com>
> ---
> drivers/s390/cio/vfio_ccw_fsm.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Jason
next prev parent reply other threads:[~2022-07-29 19:21 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-28 20:49 [PATCH v3 0/3] vfio-ccw fixes for 5.20 Eric Farman
2022-07-28 20:49 ` [PATCH v3 1/3] vfio/ccw: Add length to DMA_UNMAP checks Eric Farman
2022-07-29 19:13 ` Jason Gunthorpe
2022-07-28 20:49 ` [PATCH v3 2/3] vfio/ccw: Remove FSM Close from remove handlers Eric Farman
2022-07-29 19:18 ` Jason Gunthorpe
2022-07-28 20:49 ` [PATCH v3 3/3] vfio/ccw: Check return code from subchannel quiesce Eric Farman
2022-07-29 19:21 ` Jason Gunthorpe [this message]
2022-08-01 20:55 ` [PATCH v3 0/3] vfio-ccw fixes for 5.20 Alex Williamson
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