On 2019/9/6 上午11:21, Hillf Danton wrote:
On Thu, 5 Sep 2019 20:27:36 +0800 From: Jason Wang <jasowang@xxxxxxxxxx>
+static void vhost_set_map_dirty(struct vhost_virtqueue *vq,
+ struct vhost_map *map, int index)
+{
+ struct vhost_uaddr *uaddr = &vq->uaddrs[index];
+ int i;
+
+ if (uaddr->write) {
+ for (i = 0; i < map->npages; i++)
+ set_page_dirty(map->pages[i]);
+ }
Not sure need to set page dirty under page lock.
Just to make sure I understand the issue. Do you mean there's no need
for set_page_dirty() here? If yes, is there any other function that
already did this?
Thanks