summaryrefslogtreecommitdiff
path: root/block/qcow2-cluster.c
diff options
context:
space:
mode:
authorKevin Wolf <kwolf@redhat.com>2015-06-17 14:55:21 +0200
committerKevin Wolf <kwolf@redhat.com>2015-10-16 15:34:29 +0200
commit760e006384ecd5b8b8b1b91b5c85ff8fdcb3a21f (patch)
tree506ef3c27944a2f97069327493f875a2def3d90a /block/qcow2-cluster.c
parentb26e90f56ad3a494ee6337d2075f4dc55b62b3c6 (diff)
downloadqemu-760e006384ecd5b8b8b1b91b5c85ff8fdcb3a21f.tar.gz
qemu-760e006384ecd5b8b8b1b91b5c85ff8fdcb3a21f.tar.bz2
qemu-760e006384ecd5b8b8b1b91b5c85ff8fdcb3a21f.zip
block: Convert bs->backing_hd to BdrvChild
This is the final step in converting all of the BlockDriverState pointers that block drivers use to BdrvChild. After this patch, bs->children contains the full list of child nodes that are referenced by a given BDS, and these children are only referenced through BdrvChild, so that updating the pointer in there is enough for changing edges in the graph. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'block/qcow2-cluster.c')
-rw-r--r--block/qcow2-cluster.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/block/qcow2-cluster.c b/block/qcow2-cluster.c
index a2f3efc2e3..67be0ce2c9 100644
--- a/block/qcow2-cluster.c
+++ b/block/qcow2-cluster.c
@@ -1473,7 +1473,7 @@ static int discard_single_l2(BlockDriverState *bs, uint64_t offset,
*/
switch (qcow2_get_cluster_type(old_l2_entry)) {
case QCOW2_CLUSTER_UNALLOCATED:
- if (full_discard || !bs->backing_hd) {
+ if (full_discard || !bs->backing) {
continue;
}
break;
@@ -1707,7 +1707,7 @@ static int expand_zero_clusters_in_l1(BlockDriverState *bs, uint64_t *l1_table,
}
if (!preallocated) {
- if (!bs->backing_hd) {
+ if (!bs->backing) {
/* not backed; therefore we can simply deallocate the
* cluster */
l2_table[j] = 0;