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-rw-r--r--drivers/block/virtio_blk.c28
1 files changed, 25 insertions, 3 deletions
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 3efe378f1386..b5ca213cb6cf 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -1582,8 +1582,7 @@ static void virtblk_remove(struct virtio_device *vdev)
put_disk(vblk->disk);
}
-#ifdef CONFIG_PM_SLEEP
-static int virtblk_freeze(struct virtio_device *vdev)
+static int virtblk_freeze_priv(struct virtio_device *vdev)
{
struct virtio_blk *vblk = vdev->priv;
struct request_queue *q = vblk->disk->queue;
@@ -1605,7 +1604,7 @@ static int virtblk_freeze(struct virtio_device *vdev)
return 0;
}
-static int virtblk_restore(struct virtio_device *vdev)
+static int virtblk_restore_priv(struct virtio_device *vdev)
{
struct virtio_blk *vblk = vdev->priv;
int ret;
@@ -1619,8 +1618,29 @@ static int virtblk_restore(struct virtio_device *vdev)
return 0;
}
+
+#ifdef CONFIG_PM_SLEEP
+static int virtblk_freeze(struct virtio_device *vdev)
+{
+ return virtblk_freeze_priv(vdev);
+}
+
+static int virtblk_restore(struct virtio_device *vdev)
+{
+ return virtblk_restore_priv(vdev);
+}
#endif
+static int virtblk_reset_prepare(struct virtio_device *vdev)
+{
+ return virtblk_freeze_priv(vdev);
+}
+
+static int virtblk_reset_done(struct virtio_device *vdev)
+{
+ return virtblk_restore_priv(vdev);
+}
+
static const struct virtio_device_id id_table[] = {
{ VIRTIO_ID_BLOCK, VIRTIO_DEV_ANY_ID },
{ 0 },
@@ -1656,6 +1676,8 @@ static struct virtio_driver virtio_blk = {
.freeze = virtblk_freeze,
.restore = virtblk_restore,
#endif
+ .reset_prepare = virtblk_reset_prepare,
+ .reset_done = virtblk_reset_done,
};
static int __init virtio_blk_init(void)