fs/btrfs/raid56.c

183 			if (i < rbio->nr_data * rbio->stripe_nsectors)
285 	return (sector_nr < rbio->nr_data * rbio->stripe_nsectors);
533 	if (size != rbio->nr_data * BTRFS_STRIPE_LEN)
535 	BUG_ON(size > rbio->nr_data * BTRFS_STRIPE_LEN);
615 	return rbio_stripe_sector(rbio, rbio->nr_data, sector_nr);
622 	if (rbio->nr_data + 1 == rbio->real_stripes)
624 	return rbio_stripe_sector(rbio, rbio->nr_data + 1, sector_nr);
963 	rbio->nr_data = real_stripes - btrfs_nr_parity_stripes(bioc->map_type);
964 	ASSERT(rbio->nr_data > 0);
985 	const int data_pages = rbio->nr_data * rbio->stripe_npages;
1202 	ASSERT(rbio->nr_data > 0);
1208 	ASSERT(rbio->nr_data < rbio->real_stripes);
1221 	for (stripe = 0; stripe < rbio->nr_data; stripe++) {
1247 		memcpy(pointers[rbio->nr_data], pointers[0], sectorsize);
1248 		run_xor(pointers + 1, rbio->nr_data - 1, sectorsize);
1289 		if (stripe < rbio->nr_data) {
1339 		if (stripe < rbio->nr_data) {
1367 	ASSERT(total_nr_sector < rbio->nr_data * rbio->stripe_nsectors);
1493 	if (total_sector_nr >= rbio->nr_data * rbio->stripe_nsectors)
1558 	const int data_pages = rbio->nr_data * rbio->stripe_npages;
1647 	       rbio->nr_data * BTRFS_STRIPE_LEN);
1718 	if (stripe_nr >= rbio->nr_data)
1803 			if (faila == rbio->nr_data)
1854 		memcpy(pointers[faila], pointers[rbio->nr_data], sectorsize);
1858 		for (stripe_nr = faila; stripe_nr < rbio->nr_data - 1;
1861 		pointers[rbio->nr_data - 1] = p;
1864 		run_xor(pointers, rbio->nr_data - 1, sectorsize);
2104 	const u32 len = (rbio->nr_data * rbio->stripe_nsectors) <<
2126 	rbio->csum_buf = kzalloc(rbio->nr_data * rbio->stripe_nsectors *
2128 	rbio->csum_bitmap = bitmap_zalloc(rbio->nr_data * rbio->stripe_nsectors,
2239 	for (i = 0; i < rbio->nr_data * rbio->stripe_nsectors; i++) {
2387 	for (i = rbio->nr_data; i < rbio->real_stripes; i++) {
2433 	int nr_data = rbio->nr_data;
2445 	if (rbio->real_stripes - rbio->nr_data == 1)
2447 	else if (rbio->real_stripes - rbio->nr_data == 2)
2490 	pointers[nr_data] = kmap_local_page(p_sector.page);
2497 		for (stripe = 0; stripe < nr_data; stripe++) {
2510 			memcpy(pointers[nr_data], pointers[0], sectorsize);
2511 			run_xor(pointers + 1, nr_data - 1, sectorsize);
2524 		for (stripe = nr_data - 1; stripe >= 0; stripe--)
2528 	kunmap_local(pointers[nr_data]);
2582 	if (stripe >= 0 && stripe < rbio->nr_data)
2798 	ASSERT(offset_in_full_stripe < (rbio->nr_data << BTRFS_STRIPE_LEN_SHIFT));