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block: Move bdrv_attach_child() calls up the call chain 

Let the callers of bdrv_open_inherit() call bdrv_attach_child(). It
needs to be called in all cases where bdrv_open_inherit() succeeds (i.e.
returns 0) and a child_role is given.

bdrv_attach_child() is moved upwards to avoid a forward declaration.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Kevin Wolf 2015-06-15 11:53:47 +02:00
parent 30349fd038
commit df58179267
1 changed files with 21 additions and 20 deletions
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41
block.c
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@ -1102,6 +1102,19 @@ static int bdrv_fill_options(QDict **options, const char **pfilename,
return 0;
}
static void bdrv_attach_child(BlockDriverState *parent_bs,
BlockDriverState *child_bs,
const BdrvChildRole *child_role)
{
BdrvChild *child = g_new(BdrvChild, 1);
*child = (BdrvChild) {
.bs = child_bs,
.role = child_role,
};
QLIST_INSERT_HEAD(&parent_bs->children, child, next);
}
void bdrv_set_backing_hd(BlockDriverState *bs, BlockDriverState *backing_hd)
{
@ -1202,6 +1215,8 @@ int bdrv_open_backing_file(BlockDriverState *bs, QDict *options, Error **errp)
error_free(local_err);
goto free_exit;
}
bdrv_attach_child(bs, backing_hd, &child_backing);
bdrv_set_backing_hd(bs, backing_hd);
free_exit:
@ -1237,6 +1252,7 @@ int bdrv_open_image(BlockDriverState **pbs, const char *filename,
assert(pbs);
assert(*pbs == NULL);
assert(child_role != NULL);
bdref_key_dot = g_strdup_printf("%s.", bdref_key);
qdict_extract_subqdict(options, &image_options, bdref_key_dot);
@ -1257,6 +1273,11 @@ int bdrv_open_image(BlockDriverState **pbs, const char *filename,
ret = bdrv_open_inherit(pbs, filename, reference, image_options, 0,
parent, child_role, NULL, errp);
if (ret < 0) {
goto done;
}
bdrv_attach_child(parent, *pbs, child_role);
done:
qdict_del(options, bdref_key);
@ -1328,19 +1349,6 @@ out:
return ret;
}
static void bdrv_attach_child(BlockDriverState *parent_bs,
BlockDriverState *child_bs,
const BdrvChildRole *child_role)
{
BdrvChild *child = g_new(BdrvChild, 1);
*child = (BdrvChild) {
.bs = child_bs,
.role = child_role,
};
QLIST_INSERT_HEAD(&parent_bs->children, child, next);
}
/*
* Opens a disk image (raw, qcow2, vmdk, ...)
*
@ -1393,9 +1401,6 @@ static int bdrv_open_inherit(BlockDriverState **pbs, const char *filename,
return -ENODEV;
}
bdrv_ref(bs);
if (child_role) {
bdrv_attach_child(parent, bs, child_role);
}
*pbs = bs;
return 0;
}
@ -1540,10 +1545,6 @@ static int bdrv_open_inherit(BlockDriverState **pbs, const char *filename,
goto close_and_fail;
}
if (child_role) {
bdrv_attach_child(parent, bs, child_role);
}
QDECREF(options);
*pbs = bs;
return 0;