From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wei Wang Subject: Re: [PATCH v3 1/3] virtio-balloon: tweak config_changed implementation Date: Tue, 08 Jan 2019 13:35:04 +0800 Message-ID: <5C343688.2060609@intel.com> References: <1546844466-38079-1-git-send-email-wei.w.wang@intel.com> <1546844466-38079-2-git-send-email-wei.w.wang@intel.com> <4ea022d4-6b89-b481-5747-871e154dd21a@de.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Cc: pbonzini@redhat.com, dgilbert@redhat.com, pasic@linux.ibm.com To: Christian Borntraeger , virtio-dev@lists.oasis-open.org, linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, kvm@vger.kernel.org, mst@redhat.com, cohuck@redhat.com Return-path: In-Reply-To: <4ea022d4-6b89-b481-5747-871e154dd21a@de.ibm.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: kvm.vger.kernel.org On 01/07/2019 09:49 PM, Christian Borntraeger wrote: > > On 07.01.2019 08:01, Wei Wang wrote: >> virtio-ccw has deadlock issues with reading the config space inside the >> interrupt context, so we tweak the virtballoon_changed implementation >> by moving the config read operations into the related workqueue contexts. >> The config_read_bitmap is used as a flag to the workqueue callbacks >> about the related config fields that need to be read. >> >> The cmd_id_received is also renamed to cmd_id_received_cache, and >> the value should be obtained via virtio_balloon_cmd_id_received. >> >> Reported-by: Christian Borntraeger >> Signed-off-by: Wei Wang >> Reviewed-by: Cornelia Huck >> Reviewed-by: Halil Pasic > Together with > virtio_pci: use queue idx instead of array idx to set up the vq > virtio: don't allocate vqs when names[i] = NULL > > Tested-by: Christian Borntraeger OK. I don't plan to send a new version of the above patches as no changes needed so far. Michael, if the above two patches look good to you, please help add the related tested-by and reviewed-by tags. Thanks. Best, Wei