tree f24f67489f917b1376d0b13f548c7fc3fd40b949
parent ab2e3cd2dc97ad87fcdfb814a13b2ef386a5f13a
author Fam Zheng <famz@redhat.com> 1402459910 +0800
committer Kevin Wolf <kwolf@redhat.com> 1403885911 +0200

virtio-blk: Fix and clean up the in_sg and out_sg check

out_sg is checked by iov_to_buf below, so it can be dropped.

Add assert and iov_discard_back around in_sg, as the in_sg is handled in
dataplane code.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>