624 int ext4_getfsmap(struct super_block *sb, struct ext4_fsmap_head *head,  in ext4_getfsmap()  argument
633 	if (head->fmh_iflags & ~FMH_IF_VALID)  in ext4_getfsmap()
635 	if (!ext4_getfsmap_is_valid_device(sb, &head->fmh_keys[0]) ||  in ext4_getfsmap()
636 	    !ext4_getfsmap_is_valid_device(sb, &head->fmh_keys[1]))  in ext4_getfsmap()
639 	head->fmh_entries = 0;  in ext4_getfsmap()
665 	dkeys[0] = head->fmh_keys[0];  in ext4_getfsmap()
671 	if (!ext4_getfsmap_check_keys(dkeys, &head->fmh_keys[1]))  in ext4_getfsmap()
674 	info.gfi_next_fsblk = head->fmh_keys[0].fmr_physical +  in ext4_getfsmap()
675 			  head->fmh_keys[0].fmr_length;  in ext4_getfsmap()
678 	info.gfi_head = head;  in ext4_getfsmap()
685 		if (head->fmh_keys[0].fmr_device > handlers[i].gfd_dev)  in ext4_getfsmap()
687 		if (head->fmh_keys[1].fmr_device < handlers[i].gfd_dev)  in ext4_getfsmap()
697 		if (handlers[i].gfd_dev == head->fmh_keys[1].fmr_device)  in ext4_getfsmap()
698 			dkeys[1] = head->fmh_keys[1];  in ext4_getfsmap()
699 		if (handlers[i].gfd_dev > head->fmh_keys[0].fmr_device)  in ext4_getfsmap()
711 	head->fmh_oflags = FMH_OF_DEV_T;  in ext4_getfsmap()