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authorStefan Hajnoczi <stefanha@redhat.com>2013-06-24 17:13:13 +0200
committerKevin Wolf <kwolf@redhat.com>2013-06-28 09:20:26 +0200
commitac3c5d831aa0ff796659300e186be1a35862dbd3 (patch)
tree8ce199a08d701e447e97f91174ee049b48358965 /blockdev.c
parentcb78466ef60ccf707a6f38a1294c435b65a828e0 (diff)
blockdev: use bdrv_getlength() in qmp_drive_mirror()
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>
Diffstat (limited to 'blockdev.c')
-rw-r--r--blockdev.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/blockdev.c b/blockdev.c
index c17b525154..445f6e1d84 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -1371,7 +1371,7 @@ 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) {
@@ -1435,8 +1435,12 @@ 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);