LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Halil Pasic <pasic@linux.vnet.ibm.com>
To: Cornelia Huck <cohuck@redhat.com>,
	Dong Jia Shi <bjsdjshi@linux.ibm.com>,
	Halil Pasic <pasic@linux.ibm.com>
Cc: linux-s390@vger.kernel.org, kvm@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] vfio-ccw: process ssch with interrupts disabled
Date: Thu, 19 Apr 2018 14:01:09 +0200	[thread overview]
Message-ID: <dd958a03-d5e8-c826-6fc6-7229c3acbe1e@linux.vnet.ibm.com> (raw)
In-Reply-To: <20180413140509.9042-1-cohuck@redhat.com>



On 04/13/2018 04:05 PM, Cornelia Huck wrote:
> When we call ssch, an interrupt might already be pending once we
> return from the START SUBCHANNEL instruction. Therefore we need to
> make sure interrupts are disabled until after we're done with our
> processing.
> 
> Note that the subchannel lock is the same as the ccwdevice lock that
> is mentioned in the documentation for ccw_device_start() and friends.
> 
> Signed-off-by: Cornelia Huck<cohuck@redhat.com>

Acked-by: Halil Pasic <pasic@linux.vnet.ibm.com>

  parent reply	other threads:[~2018-04-19 12:02 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-13 14:05 Cornelia Huck
     [not found] ` <20180416021312.GO12194@bjsdjshi@linux.vnet.ibm.com>
2018-04-16  9:35   ` Cornelia Huck
     [not found] ` <20180418082931.GO5428@bjsdjshi@linux.vnet.ibm.com>
2018-04-19  9:16   ` Cornelia Huck
2018-04-19 12:01 ` Halil Pasic [this message]
2018-04-19 14:14 ` Pierre Morel
2018-04-19 15:22   ` Cornelia Huck

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=dd958a03-d5e8-c826-6fc6-7229c3acbe1e@linux.vnet.ibm.com \
    --to=pasic@linux.vnet.ibm.com \
    --cc=bjsdjshi@linux.ibm.com \
    --cc=cohuck@redhat.com \
    --cc=kvm@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-s390@vger.kernel.org \
    --cc=pasic@linux.ibm.com \
    --subject='Re: [PATCH] vfio-ccw: process ssch with interrupts disabled' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).