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authorVladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>2021-06-01 10:52:16 +0300
committerKevin Wolf <kwolf@redhat.com>2021-06-02 14:23:20 +0200
commit8081f064e404dd524b3c43248b2084dee9d32d7c (patch)
treecad5ec6bc06c0b34bd28d86ab48fd18a4c90c1c3 /block/vvfat.c
parent2c0a3acb9570a9e1ffae3c73ef94bc826dc9dd1d (diff)
block/vvfat: inherit child_vvfat_qcow from child_of_bds
Recently we've fixed a crash by adding .get_parent_aio_context handler to child_vvfat_qcow. Now we want it to support .get_parent_desc as well. child_vvfat_qcow wants to implement own .inherit_options, it's not bad. But omitting all other handlers is a bad idea. Let's inherit the class from child_of_bds instead, similar to chain_child_class and detach_by_driver_cb_class in test-bdrv-drain.c. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-Id: <20210601075218.79249-5-vsementsov@virtuozzo.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block/vvfat.c')
-rw-r--r--block/vvfat.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/block/vvfat.c b/block/vvfat.c
index 86d99c899c..ae9d387da7 100644
--- a/block/vvfat.c
+++ b/block/vvfat.c
@@ -3127,11 +3127,7 @@ static void vvfat_qcow_options(BdrvChildRole role, bool parent_is_format,
qdict_set_default_str(child_options, BDRV_OPT_CACHE_NO_FLUSH, "on");
}
-static const BdrvChildClass child_vvfat_qcow = {
- .parent_is_bds = true,
- .inherit_options = vvfat_qcow_options,
- .get_parent_aio_context = child_of_bds_get_parent_aio_context,
-};
+static BdrvChildClass child_vvfat_qcow;
static int enable_write_target(BlockDriverState *bs, Error **errp)
{
@@ -3268,6 +3264,8 @@ static BlockDriver bdrv_vvfat = {
static void bdrv_vvfat_init(void)
{
+ child_vvfat_qcow = child_of_bds;
+ child_vvfat_qcow.inherit_options = vvfat_qcow_options;
bdrv_register(&bdrv_vvfat);
}