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block: User BdrvChild callback for device name

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In order to get rid of bs->blk for bdrv_get_device_name() and
bdrv_get_device_or_node_name(), ask all parents for their name and
simply pick the first one.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Kevin Wolf 2016-02-26 10:22:16 +01:00
parent 5c8cab4808
commit 4c265bf9f4
3 changed files with 31 additions and 2 deletions
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6
block/block-backend.c
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@ -97,11 +97,17 @@ static void blk_root_drained_end(BdrvChild *child);
static void blk_root_change_media(BdrvChild *child, bool load);
static void blk_root_resize(BdrvChild *child);
static const char *blk_root_get_name(BdrvChild *child)
{
return blk_name(child->opaque);
}
static const BdrvChildRole child_root = {
.inherit_options = blk_root_inherit_options,
.change_media = blk_root_change_media,
.resize = blk_root_resize,
.get_name = blk_root_get_name,
.drained_begin = blk_root_drained_begin,
.drained_end = blk_root_drained_end,