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[Qemu-devel] [PATCH] virtio-blk: Return UNSUPP for unknown request types
From: |
Alexey Zaytsev |
Subject: |
[Qemu-devel] [PATCH] virtio-blk: Return UNSUPP for unknown request types |
Date: |
Thu, 13 Dec 2012 09:03:43 +0200 |
Currently, all unknown requests are treated as VIRTIO_BLK_T_IN
Signed-off-by: Alexey Zaytsev <address@hidden>
---
Sorry, made a typo when formatting the patch, please consider this one.
hw/virtio-blk.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/hw/virtio-blk.c b/hw/virtio-blk.c
index e25cc96..c47951a 100644
--- a/hw/virtio-blk.c
+++ b/hw/virtio-blk.c
@@ -392,10 +392,14 @@ static void virtio_blk_handle_request(VirtIOBlockReq *req,
qemu_iovec_init_external(&req->qiov, &req->elem.out_sg[1],
req->elem.out_num - 1);
virtio_blk_handle_write(req, mrb);
- } else {
+ } else if (type == VIRTIO_BLK_T_IN || type == VIRTIO_BLK_T_BARRIER) {
+ /* VIRTIO_BLK_T_IN is 0, so we can't just & it. */
qemu_iovec_init_external(&req->qiov, &req->elem.in_sg[0],
req->elem.in_num - 1);
virtio_blk_handle_read(req);
+ } else {
+ virtio_blk_req_complete(req, VIRTIO_BLK_S_UNSUPP);
+ g_free(req);
}
}
--
1.7.10.4