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block: Skip implicit nodes for filename info

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bdrv_refresh_filename() should simply skip all implicit nodes.  They are
supposed to be invisible to the user, so they should not appear in
filename information.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Message-id: 20190201192935.18394-4-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Max Reitz 2019-02-01 20:29:07 +01:00
parent e24518e303
commit bb808d5f5c
1 changed files with 14 additions and 0 deletions
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14
block.c
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@ -5549,6 +5549,20 @@ void bdrv_refresh_filename(BlockDriverState *bs)
bdrv_refresh_filename(child->bs);
}
if (bs->implicit) {
/* For implicit nodes, just copy everything from the single child */
child = QLIST_FIRST(&bs->children);
assert(QLIST_NEXT(child, next) == NULL);
pstrcpy(bs->exact_filename, sizeof(bs->exact_filename),
child->bs->exact_filename);
pstrcpy(bs->filename, sizeof(bs->filename), child->bs->filename);
bs->full_open_options = qobject_ref(child->bs->full_open_options);
return;
}
if (drv->bdrv_refresh_filename) {
/* Obsolete information is of no use here, so drop the old file name
* information before refreshing it */