block: Use bdrv_set_backing_hd everywhere
commit920beae1037dc7d98cd876da8c83b402234c7dba
authorFam Zheng <famz@redhat.com>
Fri, 23 May 2014 13:29:46 +0000 (23 21:29 +0800)
committerStefan Hajnoczi <stefanha@redhat.com>
Wed, 28 May 2014 12:28:46 +0000 (28 14:28 +0200)
treec3887a25b74b5b769911376bc588a819f857ee09
parent8d24cce1e325c4bd47a8b1984d6db599f5a7a8e9
block: Use bdrv_set_backing_hd everywhere

We need to handle the coming backing_blocker properly, so don't open
code the assignment, instead, call bdrv_set_backing_hd to change
backing_hd.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
block.c
block/stream.c
block/vvfat.c