fs/btrfs/ioctl.c

600 	struct btrfs_root_item *root_item;
618 	root_item = kzalloc(sizeof(*root_item), GFP_KERNEL);
619 	if (!root_item)
684 	inode_item = &root_item->inode;
692 	btrfs_set_root_flags(root_item, 0);
693 	btrfs_set_root_limit(root_item, 0);
696 	btrfs_set_root_bytenr(root_item, leaf->start);
697 	btrfs_set_root_generation(root_item, trans->transid);
698 	btrfs_set_root_level(root_item, 0);
699 	btrfs_set_root_refs(root_item, 1);
700 	btrfs_set_root_used(root_item, leaf->len);
701 	btrfs_set_root_last_snapshot(root_item, 0);
703 	btrfs_set_root_generation_v2(root_item,
704 			btrfs_root_generation(root_item));
705 	generate_random_guid(root_item->uuid);
706 	btrfs_set_stack_timespec_sec(&root_item->otime, cur_time.tv_sec);
707 	btrfs_set_stack_timespec_nsec(&root_item->otime, cur_time.tv_nsec);
708 	root_item->ctime = root_item->otime;
709 	btrfs_set_root_ctransid(root_item, trans->transid);
710 	btrfs_set_root_otransid(root_item, trans->transid);
714 	btrfs_set_root_dirid(root_item, BTRFS_FIRST_FREE_OBJECTID);
720 				root_item);
757 	ret = btrfs_uuid_tree_add(trans, root_item->uuid,
789 	kfree(root_item);
813 	if (btrfs_root_refs(&root->root_item) == 0)
832 	pending_snapshot->root_item = kzalloc(sizeof(struct btrfs_root_item),
835 	if (!pending_snapshot->root_item || !pending_snapshot->path) {
907 	kfree(pending_snapshot->root_item);
1025 	if (btrfs_root_refs(&BTRFS_I(dir)->root->root_item) == 0)
1495 	root_flags = btrfs_root_flags(&root->root_item);
1497 		btrfs_set_root_flags(&root->root_item,
1506 			btrfs_set_root_flags(&root->root_item,
1526 				&root->root_key, &root->root_item);
1536 		btrfs_set_root_flags(&root->root_item, root_flags);
2169 	struct btrfs_root_item *root_item;
2189 	/* Get root_item of inode's subvolume */
2196 	root_item = &root->root_item;
2200 	subvol_info->generation = btrfs_root_generation(root_item);
2201 	subvol_info->flags = btrfs_root_flags(root_item);
2203 	memcpy(subvol_info->uuid, root_item->uuid, BTRFS_UUID_SIZE);
2204 	memcpy(subvol_info->parent_uuid, root_item->parent_uuid,
2206 	memcpy(subvol_info->received_uuid, root_item->received_uuid,
2209 	subvol_info->ctransid = btrfs_root_ctransid(root_item);
2210 	subvol_info->ctime.sec = btrfs_stack_timespec_sec(&root_item->ctime);
2211 	subvol_info->ctime.nsec = btrfs_stack_timespec_nsec(&root_item->ctime);
2213 	subvol_info->otransid = btrfs_root_otransid(root_item);
2214 	subvol_info->otime.sec = btrfs_stack_timespec_sec(&root_item->otime);
2215 	subvol_info->otime.nsec = btrfs_stack_timespec_nsec(&root_item->otime);
2217 	subvol_info->stransid = btrfs_root_stransid(root_item);
2218 	subvol_info->stime.sec = btrfs_stack_timespec_sec(&root_item->stime);
2219 	subvol_info->stime.nsec = btrfs_stack_timespec_nsec(&root_item->stime);
2221 	subvol_info->rtransid = btrfs_root_rtransid(root_item);
2222 	subvol_info->rtime.sec = btrfs_stack_timespec_sec(&root_item->rtime);
2223 	subvol_info->rtime.nsec = btrfs_stack_timespec_nsec(&root_item->rtime);
4035 	struct btrfs_root_item *root_item = &root->root_item;
4075 	received_uuid_changed = memcmp(root_item->received_uuid, sa->uuid,
4078 	    !btrfs_is_empty_uuid(root_item->received_uuid)) {
4079 		ret = btrfs_uuid_tree_remove(trans, root_item->received_uuid,
4088 	memcpy(root_item->received_uuid, sa->uuid, BTRFS_UUID_SIZE);
4089 	btrfs_set_root_stransid(root_item, sa->stransid);
4090 	btrfs_set_root_rtransid(root_item, sa->rtransid);
4091 	btrfs_set_stack_timespec_sec(&root_item->stime, sa->stime.sec);
4092 	btrfs_set_stack_timespec_nsec(&root_item->stime, sa->stime.nsec);
4093 	btrfs_set_stack_timespec_sec(&root_item->rtime, sa->rtime.sec);
4094 	btrfs_set_stack_timespec_nsec(&root_item->rtime, sa->rtime.nsec);
4097 				&root->root_key, &root->root_item);