280 static int xlbd_reserve_minors(unsigned int minor, unsigned int nr)  in xlbd_reserve_minors()  argument
282 	unsigned int end = minor + nr;  in xlbd_reserve_minors()
307 	if (find_next_bit(minors, end, minor) >= end) {  in xlbd_reserve_minors()
308 		bitmap_set(minors, minor, nr);  in xlbd_reserve_minors()
317 static void xlbd_release_minors(unsigned int minor, unsigned int nr)  in xlbd_release_minors()  argument
319 	unsigned int end = minor + nr;  in xlbd_release_minors()
323 	bitmap_clear(minors,  minor, nr);  in xlbd_release_minors()
721 static int xen_translate_vdev(int vdevice, int *minor, unsigned int *offset)  in xen_translate_vdev()  argument
725 	*minor = BLKIF_MINOR(vdevice);  in xen_translate_vdev()
728 			*offset = (*minor / 64) + EMULATED_HD_DISK_NAME_OFFSET;  in xen_translate_vdev()
729 			*minor = ((*minor / 64) * PARTS_PER_DISK) +  in xen_translate_vdev()
733 			*offset = (*minor / 64) + 2 + EMULATED_HD_DISK_NAME_OFFSET;  in xen_translate_vdev()
734 			*minor = (((*minor / 64) + 2) * PARTS_PER_DISK) +  in xen_translate_vdev()
738 			*offset = (*minor / PARTS_PER_DISK) + EMULATED_SD_DISK_NAME_OFFSET;  in xen_translate_vdev()
739 			*minor = *minor + EMULATED_SD_DISK_MINOR_OFFSET;  in xen_translate_vdev()
748 			*offset = (*minor / PARTS_PER_DISK) +   in xen_translate_vdev()
751 			*minor = *minor +  in xen_translate_vdev()
763 			*offset = (*minor / PARTS_PER_DISK) +   in xen_translate_vdev()
766 			*minor = *minor +  in xen_translate_vdev()
771 			*offset = *minor / PARTS_PER_DISK;  in xen_translate_vdev()
798 	int minor;  in xlvbd_alloc_gendisk()  local
812 		err = xen_translate_vdev(info->vdevice, &minor, &offset);  in xlvbd_alloc_gendisk()
817 		minor = BLKIF_MINOR_EXT(info->vdevice);  in xlvbd_alloc_gendisk()
819 		offset = minor / nr_parts;  in xlvbd_alloc_gendisk()
825 	if (minor >> MINORBITS) {  in xlvbd_alloc_gendisk()
827 			info->vdevice, minor);  in xlvbd_alloc_gendisk()
831 	if ((minor % nr_parts) == 0)  in xlvbd_alloc_gendisk()
834 	err = xlbd_reserve_minors(minor, nr_minors);  in xlvbd_alloc_gendisk()
850 			 "%d", minor & (nr_parts - 1));  in xlvbd_alloc_gendisk()
853 	gd->first_minor = minor;  in xlvbd_alloc_gendisk()
883 	xlbd_release_minors(minor, nr_minors);  in xlvbd_alloc_gendisk()
890 	unsigned int minor, nr_minors;  in xlvbd_release_gendisk()  local
910 	minor = info->gd->first_minor;  in xlvbd_release_gendisk()
912 	xlbd_release_minors(minor, nr_minors);  in xlvbd_release_gendisk()