From: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp>
Date: Wed, 16 May 2012 18:15:31 +0000 (+0900)
Subject: sheepdog: mark image as snapshot when tag is specified
X-Git-Tag: qemu-xen-4.3.0-rc1~1054^2~7
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=622b6057beb3d8ce8035aaedab2137108bd6bfe4;p=qemu-upstream-4.5-testing.git

sheepdog: mark image as snapshot when tag is specified

When a snapshot tag is specified in the filename, the opened image is
a snapshot.

Signed-off-by: MORITA Kazutaka <morita.kazutaka@lab.ntt.co.jp>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---

diff --git a/block/sheepdog.c b/block/sheepdog.c
index e01d37168..776a1cc96 100644
--- a/block/sheepdog.c
+++ b/block/sheepdog.c
@@ -1103,7 +1103,7 @@ static int sd_open(BlockDriverState *bs, const char *filename, int flags)
         }
     }
 
-    if (snapid) {
+    if (snapid || tag[0] != '\0') {
         dprintf("%" PRIx32 " snapshot inode was open.\n", vid);
         s->is_snapshot = 1;
     }