block-backend.c (3ca1f3225727419ba573673b744edac10904276f) block-backend.c (228ca37e12f97788e05bd0c92f89b3e5e4019607)
1/*
2 * QEMU Block backends
3 *
4 * Copyright (C) 2014-2016 Red Hat, Inc.
5 *
6 * Authors:
7 * Markus Armbruster <armbru@redhat.com>,
8 *

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430 bs = bdrv_open(filename, reference, options, flags, errp);
431 if (!bs) {
432 blk_unref(blk);
433 return NULL;
434 }
435
436 blk->root = bdrv_root_attach_child(bs, "root", &child_root,
437 BDRV_CHILD_FILTERED | BDRV_CHILD_PRIMARY,
1/*
2 * QEMU Block backends
3 *
4 * Copyright (C) 2014-2016 Red Hat, Inc.
5 *
6 * Authors:
7 * Markus Armbruster <armbru@redhat.com>,
8 *

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430 bs = bdrv_open(filename, reference, options, flags, errp);
431 if (!bs) {
432 blk_unref(blk);
433 return NULL;
434 }
435
436 blk->root = bdrv_root_attach_child(bs, "root", &child_root,
437 BDRV_CHILD_FILTERED | BDRV_CHILD_PRIMARY,
438 blk->ctx, perm, BLK_PERM_ALL, blk, errp);
438 perm, BLK_PERM_ALL, blk, errp);
439 if (!blk->root) {
440 blk_unref(blk);
441 return NULL;
442 }
443
444 return blk;
445}
446

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844 * Associates a new BlockDriverState with @blk.
845 */
846int blk_insert_bs(BlockBackend *blk, BlockDriverState *bs, Error **errp)
847{
848 ThrottleGroupMember *tgm = &blk->public.throttle_group_member;
849 bdrv_ref(bs);
850 blk->root = bdrv_root_attach_child(bs, "root", &child_root,
851 BDRV_CHILD_FILTERED | BDRV_CHILD_PRIMARY,
439 if (!blk->root) {
440 blk_unref(blk);
441 return NULL;
442 }
443
444 return blk;
445}
446

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844 * Associates a new BlockDriverState with @blk.
845 */
846int blk_insert_bs(BlockBackend *blk, BlockDriverState *bs, Error **errp)
847{
848 ThrottleGroupMember *tgm = &blk->public.throttle_group_member;
849 bdrv_ref(bs);
850 blk->root = bdrv_root_attach_child(bs, "root", &child_root,
851 BDRV_CHILD_FILTERED | BDRV_CHILD_PRIMARY,
852 blk->ctx, blk->perm, blk->shared_perm,
852 blk->perm, blk->shared_perm,
853 blk, errp);
854 if (blk->root == NULL) {
855 return -EPERM;
856 }
857
858 notifier_list_notify(&blk->insert_bs_notifiers, blk);
859 if (tgm->throttle_state) {
860 throttle_group_detach_aio_context(tgm);

--- 1594 unchanged lines hidden --- 		853 blk, errp);
854 if (blk->root == NULL) {
855 return -EPERM;
856 }
857
858 notifier_list_notify(&blk->insert_bs_notifiers, blk);
859 if (tgm->throttle_state) {
860 throttle_group_detach_aio_context(tgm);

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