commit fa510ebffa1fd509323e2e0888e369e23adbb508
author Fam Zheng <famz@redhat.com> Fri Aug 23 09:14:51 2013 +0800
committer Stefan Hajnoczi <stefanha@redhat.com> Fri Sep 06 15:25:08 2013 +0200
tree 62bb139b70cfe5d10f692e0c96104cf910e0221c
parent 38b54b6dc18ae7e2a32e5ae38b312fb13f0584c8

block: use BDS ref for block jobs

Block jobs used drive_get_ref(drive_get_by_blockdev(bs)) to avoid BDS
being deleted. Now we have BDS reference count, and block jobs don't
care about dinfo, so replace them to get cleaner code. It is also the
safe way when BDS has no drive info.

Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

blockjob.c

diff --git a/blockjob.c b/blockjob.c
index 7edc945..e7d49b7 100644
--- a/blockjob.c
+++ b/blockjob.c
@@ -45,6 +45,7 @@
         error_set(errp, QERR_DEVICE_IN_USE, bdrv_get_device_name(bs));
         return NULL;
     }
+    bdrv_ref(bs);
     bdrv_set_in_use(bs, 1);
 
     job = g_malloc0(job_type->instance_size);