From mboxrd@z Thu Jan 1 00:00:00 1970 From: Cornelia Huck Subject: Re: [PATCH 1/2] virtio/s390: avoid race on vcdev->config Date: Mon, 24 Sep 2018 16:50:30 +0200 Message-ID: <20180924165030.2df3248a.cohuck@redhat.com> References: <20180921124621.43649-1-pasic@linux.ibm.com> <20180921124621.43649-2-pasic@linux.ibm.com> <20180921151433.519b6687.cohuck@redhat.com> <80a80dc6-ccb1-f245-b367-c2f9345ca151@linux.ibm.com> <20180924145554.712f4cf4.cohuck@redhat.com> <2b8982be-9066-cf08-657b-99ecf889e4a7@linux.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <2b8982be-9066-cf08-657b-99ecf889e4a7@linux.ibm.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: virtualization-bounces@lists.linux-foundation.org Errors-To: virtualization-bounces@lists.linux-foundation.org To: Halil Pasic Cc: linux-s390@vger.kernel.org, kvm@vger.kernel.org, Farhan Ali , virtualization@lists.linux-foundation.org, Colin Ian King List-Id: virtualization@lists.linuxfoundation.org On Mon, 24 Sep 2018 16:27:30 +0200 Halil Pasic wrote: > On 09/24/2018 02:55 PM, Cornelia Huck wrote: > > On Fri, 21 Sep 2018 17:47:47 -0400 > > Farhan Ali wrote: > > > >> On 09/21/2018 09:28 AM, Halil Pasic wrote: > > > >>> Anyway I'm fine with swapping the old out and your new version in, > >>> if you prefer it that way. > >>> > >>> If you do, would you like to have a respin? > > > > Just send me a respin with something that you find useful :) (maybe a > > mashup of our descriptions) (while at it, you could also add the > > cc:stable, which I agree make sense) > > > > Will do! I would like to go with. > > > """ > This normally does not cause problems, as these are usually infrequent > operations. However, for some devices writing to/reading from the config space > can be triggered through sysfs attributes. For these userspace can force the > race by increasing the frequency. > """ Sounds good.