1278 		for (i = 0; i < map->num_stripes; i++) {  in contains_pending_extent()
2669 	u32 num_stripes;  in btrfs_del_sys_chunk()  local
2689 			num_stripes = btrfs_stack_chunk_num_stripes(chunk);  in btrfs_del_sys_chunk()
2690 			len += btrfs_chunk_item_size(num_stripes);  in btrfs_del_sys_chunk()
2768 	for (i = 0; i < map->num_stripes; i++) {  in btrfs_remove_chunk()
3238 	int num_stripes = btrfs_chunk_num_stripes(leaf, chunk);  in chunk_devid_filter()  local
3241 	for (i = 0; i < num_stripes; i++) {  in chunk_devid_filter()
3256 	int num_stripes = btrfs_chunk_num_stripes(leaf, chunk);  in chunk_drange_filter()  local
3267 		factor = num_stripes / 2;  in chunk_drange_filter()
3269 		factor = num_stripes - 1;  in chunk_drange_filter()
3271 		factor = num_stripes - 2;  in chunk_drange_filter()
3273 		factor = num_stripes;  in chunk_drange_filter()
3276 	for (i = 0; i < num_stripes; i++) {  in chunk_drange_filter()
3311 	int num_stripes = btrfs_chunk_num_stripes(leaf, chunk);  in chunk_stripes_range_filter()  local
3313 	if (bargs->stripes_min <= num_stripes  in chunk_stripes_range_filter()
3314 			&& num_stripes <= bargs->stripes_max)  in chunk_stripes_range_filter()
4589 	int num_stripes;	/* total number of stripes to allocate */  in __btrfs_alloc_chunk()  local
4747 	num_stripes = ndevs * dev_stripes;  in __btrfs_alloc_chunk()
4753 	data_stripes = num_stripes / ncopies;  in __btrfs_alloc_chunk()
4756 		data_stripes = num_stripes - 1;  in __btrfs_alloc_chunk()
4759 		data_stripes = num_stripes - 2;  in __btrfs_alloc_chunk()
4783 	map = kmalloc(map_lookup_size(num_stripes), GFP_NOFS);  in __btrfs_alloc_chunk()
4788 	map->num_stripes = num_stripes;  in __btrfs_alloc_chunk()
4839 	for (i = 0; i < map->num_stripes; i++) {  in __btrfs_alloc_chunk()
4844 	atomic64_sub(stripe_size * map->num_stripes, &info->free_chunk_space);  in __btrfs_alloc_chunk()
4891 	item_size = btrfs_chunk_item_size(map->num_stripes);  in btrfs_finish_chunk_alloc()
4908 	for (i = 0; i < map->num_stripes; i++) {  in btrfs_finish_chunk_alloc()
4926 	for (i = 0; i < map->num_stripes; i++) {  in btrfs_finish_chunk_alloc()
4941 	btrfs_set_stack_chunk_num_stripes(chunk, map->num_stripes);  in btrfs_finish_chunk_alloc()
5033 	for (i = 0; i < map->num_stripes; i++) {  in btrfs_chunk_readonly()
5100 		ret = map->num_stripes;  in btrfs_num_copies()
5113 		ret = map->num_stripes;  in btrfs_num_copies()
5167 	int num_stripes;  in find_live_mirror()  local
5176 		num_stripes = map->sub_stripes;  in find_live_mirror()
5178 		num_stripes = map->num_stripes;  in find_live_mirror()
5180 	preferred_mirror = first + current->pid % num_stripes;  in find_live_mirror()
5198 		for (i = first; i < first + num_stripes; i++) {  in find_live_mirror()
5217 static void sort_parity_stripes(struct btrfs_bio *bbio, int num_stripes)  in sort_parity_stripes()  argument
5226 		for (i = 0; i < num_stripes - 1; i++) {  in sort_parity_stripes()
5297 	u64 num_stripes;  in __btrfs_map_block_for_discard()  local
5344 	num_stripes = 1;  in __btrfs_map_block_for_discard()
5353 		factor = map->num_stripes / sub_stripes;  in __btrfs_map_block_for_discard()
5354 		num_stripes = min_t(u64, map->num_stripes,  in __btrfs_map_block_for_discard()
5364 		num_stripes = map->num_stripes;  in __btrfs_map_block_for_discard()
5366 		stripe_nr = div_u64_rem(stripe_nr, map->num_stripes,  in __btrfs_map_block_for_discard()
5370 	bbio = alloc_btrfs_bio(num_stripes, 0);  in __btrfs_map_block_for_discard()
5376 	for (i = 0; i < num_stripes; i++) {  in __btrfs_map_block_for_discard()
5416 		if (stripe_index == map->num_stripes) {  in __btrfs_map_block_for_discard()
5424 	bbio->num_stripes = num_stripes;  in __btrfs_map_block_for_discard()
5449 	int num_stripes;  in get_extra_mirror_from_replace()  local
5463 	num_stripes = bbio->num_stripes;  in get_extra_mirror_from_replace()
5464 	if (*mirror_num > num_stripes) {  in get_extra_mirror_from_replace()
5479 	for (i = 0; i < num_stripes; i++) {  in get_extra_mirror_from_replace()
5515 	int num_stripes = *num_stripes_ret;  in handle_ops_on_dev_replace()  local
5533 		index_where_to_add = num_stripes;  in handle_ops_on_dev_replace()
5534 		for (i = 0; i < num_stripes; i++) {  in handle_ops_on_dev_replace()
5551 		num_stripes = index_where_to_add;  in handle_ops_on_dev_replace()
5564 		for (i = 0; i < num_stripes; i++) {  in handle_ops_on_dev_replace()
5582 				bbio->stripes + num_stripes;  in handle_ops_on_dev_replace()
5588 			bbio->tgtdev_map[index_srcdev] = num_stripes;  in handle_ops_on_dev_replace()
5591 			num_stripes++;  in handle_ops_on_dev_replace()
5595 	*num_stripes_ret = num_stripes;  in handle_ops_on_dev_replace()
5621 	int num_stripes;  in __btrfs_map_block()  local
5707 	if (dev_replace_is_ongoing && mirror_num == map->num_stripes + 1 &&  in __btrfs_map_block()
5717 	} else if (mirror_num > map->num_stripes) {  in __btrfs_map_block()
5721 	num_stripes = 1;  in __btrfs_map_block()
5724 		stripe_nr = div_u64_rem(stripe_nr, map->num_stripes,  in __btrfs_map_block()
5730 			num_stripes = map->num_stripes;  in __btrfs_map_block()
5741 			num_stripes = map->num_stripes;  in __btrfs_map_block()
5749 		u32 factor = map->num_stripes / map->sub_stripes;  in __btrfs_map_block()
5755 			num_stripes = map->sub_stripes;  in __btrfs_map_block()
5773 			num_stripes = map->num_stripes;  in __btrfs_map_block()
5792 			div_u64_rem(stripe_nr + stripe_index, map->num_stripes,  in __btrfs_map_block()
5803 		stripe_nr = div_u64_rem(stripe_nr, map->num_stripes,  in __btrfs_map_block()
5807 	if (stripe_index >= map->num_stripes) {  in __btrfs_map_block()
5810 			   stripe_index, map->num_stripes);  in __btrfs_map_block()
5815 	num_alloc_stripes = num_stripes;  in __btrfs_map_block()
5821 		tgtdev_indexes = num_stripes;  in __btrfs_map_block()
5844 		div_u64_rem(stripe_nr, num_stripes, &rot);  in __btrfs_map_block()
5849 			bbio->raid_map[(i+rot) % num_stripes] =  in __btrfs_map_block()
5852 		bbio->raid_map[(i+rot) % map->num_stripes] = RAID5_P_STRIPE;  in __btrfs_map_block()
5854 			bbio->raid_map[(i+rot+1) % num_stripes] =  in __btrfs_map_block()
5859 	for (i = 0; i < num_stripes; i++) {  in __btrfs_map_block()
5873 		sort_parity_stripes(bbio, num_stripes);  in __btrfs_map_block()
5877 		handle_ops_on_dev_replace(op, &bbio, dev_replace, &num_stripes,  in __btrfs_map_block()
5883 	bbio->num_stripes = num_stripes;  in __btrfs_map_block()
5892 	if (patch_the_first_stripe_for_dev_replace && num_stripes > 0) {  in __btrfs_map_block()
5893 		WARN_ON(num_stripes > 1);  in __btrfs_map_block()
5896 		bbio->mirror_num = map->num_stripes + 1;  in __btrfs_map_block()
5944 		length = div_u64(length, map->num_stripes / map->sub_stripes);  in btrfs_rmap_block()
5946 		length = div_u64(length, map->num_stripes);  in btrfs_rmap_block()
5952 	buf = kcalloc(map->num_stripes, sizeof(u64), GFP_NOFS);  in btrfs_rmap_block()
5955 	for (i = 0; i < map->num_stripes; i++) {  in btrfs_rmap_block()
5964 			stripe_nr = stripe_nr * map->num_stripes + i;  in btrfs_rmap_block()
5967 			stripe_nr = stripe_nr * map->num_stripes + i;  in btrfs_rmap_block()
5973 		WARN_ON(nr >= map->num_stripes);  in btrfs_rmap_block()
5979 			WARN_ON(nr >= map->num_stripes);  in btrfs_rmap_block()
6014 			BUG_ON(stripe_index >= bbio->num_stripes);  in btrfs_end_bio()
6177 	total_devs = bbio->num_stripes;  in btrfs_map_bio()
6182 	atomic_set(&bbio->stripes_pending, bbio->num_stripes);  in btrfs_map_bio()
6324 	u16 num_stripes;  in btrfs_check_chunk_valid()  local
6332 	num_stripes = btrfs_chunk_num_stripes(leaf, chunk);  in btrfs_check_chunk_valid()
6336 	if (!num_stripes) {  in btrfs_check_chunk_valid()
6338 			  num_stripes);  in btrfs_check_chunk_valid()
6394 	    (type & BTRFS_BLOCK_GROUP_RAID1 && num_stripes < 1) ||  in btrfs_check_chunk_valid()
6395 	    (type & BTRFS_BLOCK_GROUP_RAID5 && num_stripes < 2) ||  in btrfs_check_chunk_valid()
6396 	    (type & BTRFS_BLOCK_GROUP_RAID6 && num_stripes < 3) ||  in btrfs_check_chunk_valid()
6397 	    (type & BTRFS_BLOCK_GROUP_DUP && num_stripes > 2) ||  in btrfs_check_chunk_valid()
6399 	     num_stripes != 1)) {  in btrfs_check_chunk_valid()
6402 			num_stripes, sub_stripes,  in btrfs_check_chunk_valid()
6432 	int num_stripes;  in read_one_chunk()  local
6438 	num_stripes = btrfs_chunk_num_stripes(leaf, chunk);  in read_one_chunk()
6459 	map = kmalloc(map_lookup_size(num_stripes), GFP_NOFS);  in read_one_chunk()
6473 	map->num_stripes = num_stripes;  in read_one_chunk()
6480 	for (i = 0; i < num_stripes; i++) {  in read_one_chunk()
6711 	u32 num_stripes;  in btrfs_read_sys_array()  local
6773 			num_stripes = btrfs_chunk_num_stripes(sb, chunk);  in btrfs_read_sys_array()
6774 			if (!num_stripes) {  in btrfs_read_sys_array()
6777 					num_stripes, cur_offset);  in btrfs_read_sys_array()
6791 			len = btrfs_chunk_item_size(num_stripes);  in btrfs_read_sys_array()
6855 		for (i = 0; i < map->num_stripes; i++) {  in btrfs_check_rw_degradable()
7314 		for (i = 0; i < map->num_stripes; i++) {  in btrfs_update_commit_device_bytes_used()
7352 static u64 calc_stripe_length(u64 type, u64 chunk_len, int num_stripes)  in calc_stripe_length()  argument
7360 		data_stripes = num_stripes - 1;  in calc_stripe_length()
7363 		data_stripes = num_stripes - 2;  in calc_stripe_length()
7366 		data_stripes = num_stripes / ncopies;  in calc_stripe_length()
7397 	stripe_len = calc_stripe_length(map->type, em->len, map->num_stripes);  in verify_one_dev_extent()
7407 	for (i = 0; i < map->num_stripes; i++) {  in verify_one_dev_extent()
7411 			if (map->verified_stripes >= map->num_stripes) {  in verify_one_dev_extent()
7443 		if (em->map_lookup->num_stripes !=  in verify_chunk_dev_extent_mapping()
7448 				  em->map_lookup->num_stripes);  in verify_chunk_dev_extent_mapping()