From 38d5e0867780e352a3890792f684594deb7afd7e Mon Sep 17 00:00:00 2001
From: Max Reitz <mreitz@redhat.com>
Date: Sun, 19 Jan 2014 18:07:55 +0100
Subject: [PATCH 21/34] blockdev: use bdrv_getlength() in qmp_drive_mirror()

RH-Author: Max Reitz <mreitz@redhat.com>
Message-id: <1390154881-17140-2-git-send-email-mreitz@redhat.com>
Patchwork-id: 56814
O-Subject: [RHEL-7.0 qemu-kvm PATCH v2 1/7] blockdev: use bdrv_getlength() in qmp_drive_mirror()
Bugzilla: 921890
RH-Acked-by: Fam Zheng <famz@redhat.com>
RH-Acked-by: Kevin Wolf <kwolf@redhat.com>
RH-Acked-by: Jeffrey Cody <jcody@redhat.com>

From: Stefan Hajnoczi <stefanha@redhat.com>

BZ: 921890

Use bdrv_getlength() for its byte units and error return instead of
bdrv_get_geometry().

Reported-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit ac3c5d831aa0ff796659300e186be1a35862dbd3)

Signed-off-by: Max Reitz <mreitz@redhat.com>
---
 blockdev.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
 blockdev.c |   10 +++++++---
 1 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/blockdev.c b/blockdev.c
index 33a5f5f..0ba2504 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -1541,7 +1541,7 @@ void qmp_drive_mirror(const char *device, const char *target,
     BlockDriver *drv = NULL;
     Error *local_err = NULL;
     int flags;
-    uint64_t size;
+    int64_t size;
     int ret;
 
     if (!has_speed) {
@@ -1605,8 +1605,12 @@ void qmp_drive_mirror(const char *device, const char *target,
         sync = MIRROR_SYNC_MODE_FULL;
     }
 
-    bdrv_get_geometry(bs, &size);
-    size *= 512;
+    size = bdrv_getlength(bs);
+    if (size < 0) {
+        error_setg_errno(errp, -size, "bdrv_getlength failed");
+        return;
+    }
+
     if (sync == MIRROR_SYNC_MODE_FULL && mode != NEW_IMAGE_MODE_EXISTING) {
         /* create new image w/o backing file */
         assert(format && drv);
-- 
1.7.1