virtio-blk: trivial code optimization
commit49cffbc6079c27432b4635d5d03ce14a249d86e2
authorGonglei <arei.gonglei@huawei.com>
Wed, 11 Nov 2015 01:59:26 +0000 (11 09:59 +0800)
committerStefan Hajnoczi <stefanha@redhat.com>
Tue, 22 Dec 2015 08:01:07 +0000 (22 16:01 +0800)
tree72f1b2f26305756e3de42706a862fb8ea55630f6
parentc688084506cf2cf2eba4ba9df4e91abb6e3dab83
virtio-blk: trivial code optimization

1. avoid possible superflous checking
2. make code more robustness

["make code more robustness" refers to avoiding integer
underflows/overflows.
--Stefan]

Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Message-id: 1447207166-12612-1-git-send-email-arei.gonglei@huawei.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
hw/block/virtio-blk.c