429 static bool __is_raid10_far(int layout);
528 static unsigned int __raid10_near_copies(int layout)  in __raid10_near_copies()  argument
530 	return layout & 0xFF;  in __raid10_near_copies()
534 static unsigned int __raid10_far_copies(int layout)  in __raid10_far_copies()  argument
536 	return __raid10_near_copies(layout >> RAID10_FAR_COPIES_SHIFT);  in __raid10_far_copies()
540 static bool __is_raid10_offset(int layout)  in __is_raid10_offset()  argument
542 	return !!(layout & RAID10_OFFSET);  in __is_raid10_offset()
546 static bool __is_raid10_near(int layout)  in __is_raid10_near()  argument
548 	return !__is_raid10_offset(layout) && __raid10_near_copies(layout) > 1;  in __is_raid10_near()
552 static bool __is_raid10_far(int layout)  in __is_raid10_far()  argument
554 	return !__is_raid10_offset(layout) && __raid10_far_copies(layout) > 1;  in __is_raid10_far()
558 static const char *raid10_md_layout_to_format(int layout)  in raid10_md_layout_to_format()  argument
566 	if (__is_raid10_offset(layout))  in raid10_md_layout_to_format()
569 	if (__raid10_near_copies(layout) > 1)  in raid10_md_layout_to_format()
572 	if (__raid10_far_copies(layout) > 1)  in raid10_md_layout_to_format()
592 static unsigned int raid10_md_layout_to_copies(int layout)  in raid10_md_layout_to_copies()  argument
594 	return max(__raid10_near_copies(layout), __raid10_far_copies(layout));  in raid10_md_layout_to_copies()
635 static bool __got_raid10(struct raid_type *rtp, const int layout)  in __got_raid10()  argument
641 			return __is_raid10_near(layout);  in __got_raid10()
643 			return __is_raid10_offset(layout);  in __got_raid10()
645 			return __is_raid10_far(layout);  in __got_raid10()
667 static struct raid_type *get_raid_type_by_ll(const int level, const int layout)  in get_raid_type_by_ll()  argument
674 		    (__got_raid10(rtp, layout) || rtp->algorithm == layout))  in get_raid_type_by_ll()
716 	mddev->new_layout = mddev->layout;  in rs_set_cur()
729 	mddev->layout = mddev->new_layout;  in rs_set_new()
763 	rs->md.layout = raid_type->algorithm;  in raid_set_alloc()
764 	rs->md.new_layout = rs->md.layout;  in raid_set_alloc()
1752 		if (__is_raid10_offset(mddev->layout))  in rs_check_takeover()
1755 		near_copies = __raid10_near_copies(mddev->layout);  in rs_check_takeover()
1769 			    __raid10_far_copies(mddev->layout) > 1)  in rs_check_takeover()
1777 		    max(near_copies, __raid10_far_copies(mddev->layout)) == mddev->raid_disks)  in rs_check_takeover()
1816 		    mddev->layout == ALGORITHM_PARITY_N)  in rs_check_takeover()
1823 		    mddev->layout == ALGORITHM_PARITY_N)  in rs_check_takeover()
1828 		    mddev->layout == ALGORITHM_PARITY_N)  in rs_check_takeover()
1838 		    ((mddev->layout == ALGORITHM_PARITY_N && mddev->new_layout == ALGORITHM_PARITY_N) ||  in rs_check_takeover()
1846 		    mddev->layout == ALGORITHM_PARITY_N)  in rs_check_takeover()
1851 		    mddev->layout == ALGORITHM_PARITY_N)  in rs_check_takeover()
1856 		    ((mddev->layout == ALGORITHM_PARITY_N && mddev->new_layout == ALGORITHM_PARITY_N) ||  in rs_check_takeover()
1878 	       rs->md.new_layout != rs->md.layout ||  in rs_is_layout_change()
1952 	__le32 layout;  member
2120 	sb->layout = cpu_to_le32(mddev->layout);  in super_sync()
2232 	mddev->layout = le32_to_cpu(sb->layout);  in super_init_validation()
2261 			rs->raid_type = get_raid_type_by_ll(mddev->level, mddev->layout);  in super_init_validation()
2268 		struct raid_type *rt_cur = get_raid_type_by_ll(mddev->level, mddev->layout);  in super_init_validation()
2280 			if (mddev->layout != mddev->new_layout) {  in super_init_validation()
2286 					      le32_to_cpu(sb->layout), mddev->new_layout);  in super_init_validation()
2296 				      raid10_md_layout_to_format(mddev->layout),  in super_init_validation()
2297 				      raid10_md_layout_to_copies(mddev->layout));  in super_init_validation()
2400 				if (rs_is_raid10(rs) && __is_raid10_near(mddev->layout)) {  in super_init_validation()
2401 					if (mddev->raid_disks % __raid10_near_copies(mddev->layout) ||  in super_init_validation()
2721 			mddev->layout = raid10_format_to_md_layout(rs, ALGORITHM_RAID10_FAR,  in rs_setup_takeover()
2725 			mddev->layout = raid10_format_to_md_layout(rs, ALGORITHM_RAID10_NEAR,  in rs_setup_takeover()
2760 		    __is_raid10_near(mddev->layout) &&  in rs_prepare_reshape()
2762 		    rs->raid10_copies != __raid10_near_copies(mddev->layout)) {  in rs_prepare_reshape()
2776 			mddev->layout = raid10_format_to_md_layout(rs, ALGORITHM_RAID10_NEAR,  in rs_prepare_reshape()
2778 			mddev->new_layout = mddev->layout;  in rs_prepare_reshape()
2848 	    mddev->layout != mddev->new_layout) {  in rs_setup_reshape()
2850 		mddev->new_layout = mddev->layout;  in rs_setup_reshape()
3656 					 raid10_md_layout_to_copies(mddev->layout));  in raid_status()
3659 					 raid10_md_layout_to_format(mddev->layout));  in raid_status()