From: Alex Bligh <alex@alex.org.uk>
Date: Sun, 22 May 2011 17:50:49 +0000 (+0100)
Subject: nbd: Fix using zero offset and length for REQ_FLUSH properly
X-Git-Url: http://git.alex.org.uk

nbd: Fix using zero offset and length for REQ_FLUSH properly
---

diff --git a/nbd.c b/nbd.c
index 37949be..f665f54 100644
--- a/nbd.c
+++ b/nbd.c
@@ -248,7 +248,7 @@ static int nbd_send_req(struct nbd_device *lo, struct request *req)
 			     (( (req->cmd_flags & REQ_FUA) && (lo->flags & NBD_FLAG_SEND_FUA)) ?
 			      NBD_CMD_FLAG_FUA : 0));
 	/* Send from & len as zero on FLUSH - other values reserved per protocol */
-	if (request.type == NBD_CMD_FLUSH) {
+	if (nbd_cmd(req) == NBD_CMD_FLUSH) {
 		request.from = 0;
 		request.len = 0;
 	} else {