[PATCH 1/2] vhost: remove the possible fruitless search on iotlb prefetch
From: Koichiro Den <hidden>
Date: 2017-08-19 06:41:14
Also in:
kvm, virtualization
Subsystem:
the rest, virtio host (vhost) · Maintainers:
Linus Torvalds, "Michael S. Tsirkin", Jason Wang
Signed-off-by: Koichiro Den <redacted> --- drivers/vhost/vhost.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index e4613a3c362d..93e909afc1c3 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c@@ -1184,7 +1184,7 @@ static int iotlb_access_ok(struct vhost_virtqueue *vq, while (len > s) { node = vhost_umem_interval_tree_iter_first(&umem->umem_tree, addr, - addr + len - 1); + addr + len - s - 1); if (node == NULL || node->start > addr) { vhost_iotlb_miss(vq, addr, access); return false;
--
2.9.4