From mboxrd@z Thu Jan 1 00:00:00 1970 From: Heinz Graalfs Subject: [PATCH v3 RFC 4/4] virtio_ccw: set surprize_removal in virtio_device if a device was lost Date: Wed, 27 Nov 2013 11:32:40 +0100 Message-ID: <1385548360-31943-5-git-send-email-graalfs@linux.vnet.ibm.com> References: <1385548360-31943-1-git-send-email-graalfs@linux.vnet.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1385548360-31943-1-git-send-email-graalfs@linux.vnet.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: mst@redhat.com, virtualization@lists.linux-foundation.org Cc: borntraeger@de.ibm.com List-Id: virtualization@lists.linuxfoundation.org Code is added to the notify handler to set the 'surprize_removal' flag in virtio_device in case a CIO_GONE notification occurs. The remove callback of the backend driver must check this flag in order to perform special processing for a lost device. Signed-off-by: Heinz Graalfs --- drivers/s390/kvm/virtio_ccw.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) diff --git a/drivers/s390/kvm/virtio_ccw.c b/drivers/s390/kvm/virtio_ccw.c index 35b9aaa..8f6c74a 100644 --- a/drivers/s390/kvm/virtio_ccw.c +++ b/drivers/s390/kvm/virtio_ccw.c @@ -27,6 +27,7 @@ #include #include #include +#include #include #include #include @@ -1064,8 +1065,19 @@ out_free: static int virtio_ccw_cio_notify(struct ccw_device *cdev, int event) { - /* TODO: Check whether we need special handling here. */ - return 0; + int rc; + struct virtio_ccw_device *vcdev = dev_get_drvdata(&cdev->dev); + + switch (event) { + case CIO_GONE: + vcdev->vdev.surprize_removal = true; + rc = NOTIFY_DONE; + break; + default: + rc = NOTIFY_DONE; + break; + } + return rc; } static struct ccw_device_id virtio_ids[] = { -- 1.8.3.1