599 static int rbio_stripe_page_index(struct btrfs_raid_bio *rbio, int stripe,  in rbio_stripe_page_index()  argument
602 	return stripe * rbio->stripe_npages + index;  in rbio_stripe_page_index()
609 static struct page *rbio_stripe_page(struct btrfs_raid_bio *rbio, int stripe,  in rbio_stripe_page()  argument
612 	return rbio->stripe_pages[rbio_stripe_page_index(rbio, stripe, index)];  in rbio_stripe_page()
1077 	struct btrfs_bio_stripe *stripe;  in rbio_add_io_page()  local
1080 	stripe = &rbio->bbio->stripes[stripe_nr];  in rbio_add_io_page()
1081 	disk_start = stripe->physical + (page_index << PAGE_SHIFT);  in rbio_add_io_page()
1084 	if (!stripe->dev->bdev)  in rbio_add_io_page()
1096 		if (last_end == disk_start && stripe->dev->bdev &&  in rbio_add_io_page()
1098 		    last->bi_disk == stripe->dev->bdev->bd_disk &&  in rbio_add_io_page()
1099 		    last->bi_partno == stripe->dev->bdev->bd_partno) {  in rbio_add_io_page()
1109 	bio_set_dev(bio, stripe->dev->bdev);  in rbio_add_io_page()
1183 	int stripe;  in finish_rmw()  local
1234 		for (stripe = 0; stripe < nr_data; stripe++) {  in finish_rmw()
1235 			p = page_in_rbio(rbio, stripe, pagenr, 0);  in finish_rmw()
1236 			pointers[stripe] = kmap(p);  in finish_rmw()
1242 		pointers[stripe++] = kmap(p);  in finish_rmw()
1252 			pointers[stripe++] = kmap(p);  in finish_rmw()
1263 		for (stripe = 0; stripe < rbio->real_stripes; stripe++)  in finish_rmw()
1264 			kunmap(page_in_rbio(rbio, stripe, pagenr, 0));  in finish_rmw()
1272 	for (stripe = 0; stripe < rbio->real_stripes; stripe++) {  in finish_rmw()
1275 			if (stripe < rbio->nr_data) {  in finish_rmw()
1276 				page = page_in_rbio(rbio, stripe, pagenr, 1);  in finish_rmw()
1280 			       page = rbio_stripe_page(rbio, stripe, pagenr);  in finish_rmw()
1284 				       page, stripe, pagenr, rbio->stripe_len);  in finish_rmw()
1293 	for (stripe = 0; stripe < rbio->real_stripes; stripe++) {  in finish_rmw()
1294 		if (!bbio->tgtdev_map[stripe])  in finish_rmw()
1299 			if (stripe < rbio->nr_data) {  in finish_rmw()
1300 				page = page_in_rbio(rbio, stripe, pagenr, 1);  in finish_rmw()
1304 			       page = rbio_stripe_page(rbio, stripe, pagenr);  in finish_rmw()
1308 					       rbio->bbio->tgtdev_map[stripe],  in finish_rmw()
1350 	struct btrfs_bio_stripe *stripe;  in find_bio_stripe()  local
1355 		stripe = &rbio->bbio->stripes[i];  in find_bio_stripe()
1356 		stripe_start = stripe->physical;  in find_bio_stripe()
1359 		    stripe->dev->bdev &&  in find_bio_stripe()
1360 		    bio->bi_disk == stripe->dev->bdev->bd_disk &&  in find_bio_stripe()
1361 		    bio->bi_partno == stripe->dev->bdev->bd_partno) {  in find_bio_stripe()
1501 	int stripe;  in raid56_rmw_stripe()  local
1517 	for (stripe = 0; stripe < rbio->nr_data; stripe++) {  in raid56_rmw_stripe()
1526 			page = page_in_rbio(rbio, stripe, pagenr, 1);  in raid56_rmw_stripe()
1530 			page = rbio_stripe_page(rbio, stripe, pagenr);  in raid56_rmw_stripe()
1539 				       stripe, pagenr, rbio->stripe_len);  in raid56_rmw_stripe()
1797 	int pagenr, stripe;  in __raid_recover_end_io()  local
1834 		for (stripe = 0; stripe < rbio->real_stripes; stripe++) {  in __raid_recover_end_io()
1841 			    (stripe == faila || stripe == failb)) {  in __raid_recover_end_io()
1842 				page = page_in_rbio(rbio, stripe, pagenr, 0);  in __raid_recover_end_io()
1844 				page = rbio_stripe_page(rbio, stripe, pagenr);  in __raid_recover_end_io()
1846 			pointers[stripe] = kmap(page);  in __raid_recover_end_io()
1917 			for (stripe = faila; stripe < rbio->nr_data - 1; stripe++)  in __raid_recover_end_io()
1918 				pointers[stripe] = pointers[stripe + 1];  in __raid_recover_end_io()
1942 		for (stripe = 0; stripe < rbio->real_stripes; stripe++) {  in __raid_recover_end_io()
1949 			    (stripe == faila || stripe == failb)) {  in __raid_recover_end_io()
1950 				page = page_in_rbio(rbio, stripe, pagenr, 0);  in __raid_recover_end_io()
1952 				page = rbio_stripe_page(rbio, stripe, pagenr);  in __raid_recover_end_io()
2047 	int stripe;  in __raid56_parity_recover()  local
2063 	for (stripe = 0; stripe < rbio->real_stripes; stripe++) {  in __raid56_parity_recover()
2064 		if (rbio->faila == stripe || rbio->failb == stripe) {  in __raid56_parity_recover()
2076 			p = rbio_stripe_page(rbio, stripe, pagenr);  in __raid56_parity_recover()
2081 				       rbio_stripe_page(rbio, stripe, pagenr),  in __raid56_parity_recover()
2082 				       stripe, pagenr, rbio->stripe_len);  in __raid56_parity_recover()
2341 	int stripe;  in finish_parity_scrub()  local
2398 		for (stripe = 0; stripe < nr_data; stripe++) {  in finish_parity_scrub()
2399 			p = page_in_rbio(rbio, stripe, pagenr, 0);  in finish_parity_scrub()
2400 			pointers[stripe] = kmap(p);  in finish_parity_scrub()
2404 		pointers[stripe++] = kmap(p_page);  in finish_parity_scrub()
2412 			pointers[stripe++] = kmap(q_page);  in finish_parity_scrub()
2432 		for (stripe = 0; stripe < rbio->real_stripes; stripe++)  in finish_parity_scrub()
2433 			kunmap(page_in_rbio(rbio, stripe, pagenr, 0));  in finish_parity_scrub()
2500 static inline int is_data_stripe(struct btrfs_raid_bio *rbio, int stripe)  in is_data_stripe()  argument
2502 	if (stripe >= 0 && stripe < rbio->nr_data)  in is_data_stripe()
2604 	int stripe;  in raid56_parity_scrub_stripe()  local
2618 	for (stripe = 0; stripe < rbio->real_stripes; stripe++) {  in raid56_parity_scrub_stripe()
2627 			page = page_in_rbio(rbio, stripe, pagenr, 1);  in raid56_parity_scrub_stripe()
2631 			page = rbio_stripe_page(rbio, stripe, pagenr);  in raid56_parity_scrub_stripe()
2640 				       stripe, pagenr, rbio->stripe_len);  in raid56_parity_scrub_stripe()