+ /* Fix variable parts of all bios */
+ vcnt = (r1_bio->sectors + PAGE_SIZE / 512 - 1) >> (PAGE_SHIFT - 9);
+ for (i = 0; i < conf->raid_disks * 2; i++) {
+ int j;
+ int size;
+ struct bio *b = r1_bio->bios[i];
+ if (b->bi_end_io != end_sync_read)
+ continue;
+ /* fixup the bio for reuse */
+ bio_reset(b);
+ b->bi_vcnt = vcnt;
+ b->bi_size = r1_bio->sectors << 9;
+ b->bi_sector = r1_bio->sector +
+ conf->mirrors[i].rdev->data_offset;
+ b->bi_bdev = conf->mirrors[i].rdev->bdev;
+ b->bi_end_io = end_sync_read;
+ b->bi_private = r1_bio;
+
+ size = b->bi_size;
+ for (j = 0; j < vcnt ; j++) {
+ struct bio_vec *bi;
+ bi = &b->bi_io_vec[j];
+ bi->bv_offset = 0;
+ if (size > PAGE_SIZE)
+ bi->bv_len = PAGE_SIZE;
+ else
+ bi->bv_len = size;
+ size -= PAGE_SIZE;
+ }
+ }