- for (i=0; i<mddev->raid_disks; i++)
- if (r1_bio->bios[i]->bi_end_io == end_sync_read) {
- int j;
- int vcnt = r1_bio->sectors >> (PAGE_SHIFT- 9);
- struct bio *pbio = r1_bio->bios[primary];
- struct bio *sbio = r1_bio->bios[i];
-
- if (test_bit(BIO_UPTODATE, &sbio->bi_flags)) {
- for (j = vcnt; j-- ; ) {
- struct page *p, *s;
- p = pbio->bi_io_vec[j].bv_page;
- s = sbio->bi_io_vec[j].bv_page;
- if (memcmp(page_address(p),
- page_address(s),
- PAGE_SIZE))
- break;
- }
- } else
- j = 0;
- if (j >= 0)
- mddev->resync_mismatches += r1_bio->sectors;
- if (j < 0 || (test_bit(MD_RECOVERY_CHECK, &mddev->recovery)
- && test_bit(BIO_UPTODATE, &sbio->bi_flags))) {
- sbio->bi_end_io = NULL;
- rdev_dec_pending(conf->mirrors[i].rdev, mddev);
- } else {
- /* fixup the bio for reuse */
- int size;
- sbio->bi_vcnt = vcnt;
- sbio->bi_size = r1_bio->sectors << 9;
- sbio->bi_idx = 0;
- sbio->bi_phys_segments = 0;
- sbio->bi_flags &= ~(BIO_POOL_MASK - 1);
- sbio->bi_flags |= 1 << BIO_UPTODATE;
- sbio->bi_next = NULL;
- sbio->bi_sector = r1_bio->sector +
- conf->mirrors[i].rdev->data_offset;
- sbio->bi_bdev = conf->mirrors[i].rdev->bdev;
- size = sbio->bi_size;
- for (j = 0; j < vcnt ; j++) {
- struct bio_vec *bi;
- bi = &sbio->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;
- memcpy(page_address(bi->bv_page),
- page_address(pbio->bi_io_vec[j].bv_page),
- PAGE_SIZE);
- }
+ for (i = 0; i < conf->raid_disks; i++) {
+ int j;
+ int vcnt = r1_bio->sectors >> (PAGE_SHIFT- 9);
+ struct bio *pbio = r1_bio->bios[primary];
+ struct bio *sbio = r1_bio->bios[i];
+ int size;
+
+ if (r1_bio->bios[i]->bi_end_io != end_sync_read)
+ continue;