424 static bool __is_raid10_far(int layout);
523 static unsigned int __raid10_near_copies(int layout)  in __raid10_near_copies()  argument
525 	return layout & 0xFF;  in __raid10_near_copies()
529 static unsigned int __raid10_far_copies(int layout)  in __raid10_far_copies()  argument
531 	return __raid10_near_copies(layout >> RAID10_FAR_COPIES_SHIFT);  in __raid10_far_copies()
535 static bool __is_raid10_offset(int layout)  in __is_raid10_offset()  argument
537 	return !!(layout & RAID10_OFFSET);  in __is_raid10_offset()
541 static bool __is_raid10_near(int layout)  in __is_raid10_near()  argument
543 	return !__is_raid10_offset(layout) && __raid10_near_copies(layout) > 1;  in __is_raid10_near()
547 static bool __is_raid10_far(int layout)  in __is_raid10_far()  argument
549 	return !__is_raid10_offset(layout) && __raid10_far_copies(layout) > 1;  in __is_raid10_far()
553 static const char *raid10_md_layout_to_format(int layout)  in raid10_md_layout_to_format()  argument
561 	if (__is_raid10_offset(layout))  in raid10_md_layout_to_format()
564 	if (__raid10_near_copies(layout) > 1)  in raid10_md_layout_to_format()
567 	if (__raid10_far_copies(layout) > 1)  in raid10_md_layout_to_format()
587 static unsigned int raid10_md_layout_to_copies(int layout)  in raid10_md_layout_to_copies()  argument
589 	return max(__raid10_near_copies(layout), __raid10_far_copies(layout));  in raid10_md_layout_to_copies()
631 static bool __got_raid10(struct raid_type *rtp, const int layout)  in __got_raid10()  argument
637 			return __is_raid10_near(layout);  in __got_raid10()
639 			return __is_raid10_offset(layout);  in __got_raid10()
641 			return __is_raid10_far(layout);  in __got_raid10()
663 static struct raid_type *get_raid_type_by_ll(const int level, const int layout)  in get_raid_type_by_ll()  argument
670 		    (__got_raid10(rtp, layout) || rtp->algorithm == layout))  in get_raid_type_by_ll()
712 	mddev->new_layout = mddev->layout;  in rs_set_cur()
725 	mddev->layout = mddev->new_layout;  in rs_set_new()
759 	rs->md.layout = raid_type->algorithm;  in raid_set_alloc()
760 	rs->md.new_layout = rs->md.layout;  in raid_set_alloc()
1773 		if (__is_raid10_offset(mddev->layout))  in rs_check_takeover()
1776 		near_copies = __raid10_near_copies(mddev->layout);  in rs_check_takeover()
1790 			    __raid10_far_copies(mddev->layout) > 1)  in rs_check_takeover()
1798 		    max(near_copies, __raid10_far_copies(mddev->layout)) == mddev->raid_disks)  in rs_check_takeover()
1837 		    mddev->layout == ALGORITHM_PARITY_N)  in rs_check_takeover()
1844 		    mddev->layout == ALGORITHM_PARITY_N)  in rs_check_takeover()
1849 		    mddev->layout == ALGORITHM_PARITY_N)  in rs_check_takeover()
1859 		    ((mddev->layout == ALGORITHM_PARITY_N && mddev->new_layout == ALGORITHM_PARITY_N) ||  in rs_check_takeover()
1867 		    mddev->layout == ALGORITHM_PARITY_N)  in rs_check_takeover()
1872 		    mddev->layout == ALGORITHM_PARITY_N)  in rs_check_takeover()
1877 		    ((mddev->layout == ALGORITHM_PARITY_N && mddev->new_layout == ALGORITHM_PARITY_N) ||  in rs_check_takeover()
1907 	change = mddev->new_layout != mddev->layout ||  in rs_reshape_requested()
1967 	__le32 layout;  member
2135 	sb->layout = cpu_to_le32(mddev->layout);  in super_sync()
2247 	mddev->layout = le32_to_cpu(sb->layout);  in super_init_validation()
2276 			rs->raid_type = get_raid_type_by_ll(mddev->level, mddev->layout);  in super_init_validation()
2283 		struct raid_type *rt_cur = get_raid_type_by_ll(mddev->level, mddev->layout);  in super_init_validation()
2295 			if (mddev->layout != mddev->new_layout) {  in super_init_validation()
2301 					      le32_to_cpu(sb->layout), mddev->new_layout);  in super_init_validation()
2311 				      raid10_md_layout_to_format(mddev->layout),  in super_init_validation()
2312 				      raid10_md_layout_to_copies(mddev->layout));  in super_init_validation()
2417 				if (rs_is_raid10(rs) && __is_raid10_near(mddev->layout)) {  in super_init_validation()
2418 					if (mddev->raid_disks % __raid10_near_copies(mddev->layout) ||  in super_init_validation()
2738 			mddev->layout = raid10_format_to_md_layout(rs, ALGORITHM_RAID10_FAR,  in rs_setup_takeover()
2742 			mddev->layout = raid10_format_to_md_layout(rs, ALGORITHM_RAID10_NEAR,  in rs_setup_takeover()
2777 		    __is_raid10_near(mddev->layout) &&  in rs_prepare_reshape()
2779 		    rs->raid10_copies != __raid10_near_copies(mddev->layout)) {  in rs_prepare_reshape()
2793 			mddev->layout = raid10_format_to_md_layout(rs, ALGORITHM_RAID10_NEAR,  in rs_prepare_reshape()
2795 			mddev->new_layout = mddev->layout;  in rs_prepare_reshape()
2865 	    mddev->layout != mddev->new_layout) {  in rs_setup_reshape()
2867 		mddev->new_layout = mddev->layout;  in rs_setup_reshape()
3646 					 raid10_md_layout_to_copies(mddev->layout));  in raid_status()
3649 					 raid10_md_layout_to_format(mddev->layout));  in raid_status()