diff options
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/raid10.c | 105 |
1 files changed, 98 insertions, 7 deletions
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 813f52464f8a..8a6862be9f58 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1594,19 +1594,29 @@ static void end_sync_write(struct bio *bio, int error) sector_t first_bad; int bad_sectors; int slot; + int repl; + struct md_rdev *rdev; - d = find_bio_disk(conf, r10_bio, bio, &slot, NULL); + d = find_bio_disk(conf, r10_bio, bio, &slot, &repl); + if (repl) + rdev = conf->mirrors[d].replacement; + else + rdev = conf->mirrors[d].rdev; if (!uptodate) { - set_bit(WriteErrorSeen, &conf->mirrors[d].rdev->flags); - set_bit(R10BIO_WriteError, &r10_bio->state); - } else if (is_badblock(conf->mirrors[d].rdev, + if (repl) + md_error(mddev, rdev); + else { + set_bit(WriteErrorSeen, &rdev->flags); + set_bit(R10BIO_WriteError, &r10_bio->state); + } + } else if (is_badblock(rdev, r10_bio->devs[slot].addr, r10_bio->sectors, &first_bad, &bad_sectors)) set_bit(R10BIO_MadeGood, &r10_bio->state); - rdev_dec_pending(conf->mirrors[d].rdev, mddev); + rdev_dec_pending(rdev, mddev); end_sync_request(r10_bio); } @@ -1710,6 +1720,29 @@ static void sync_request_write(struct mddev *mddev, struct r10bio *r10_bio) generic_make_request(tbio); } + /* Now write out to any replacement devices + * that are active + */ + for (i = 0; i < conf->copies; i++) { + int j, d; + int vcnt = r10_bio->sectors >> (PAGE_SHIFT-9); + + tbio = r10_bio->devs[i].repl_bio; + if (!tbio || !tbio->bi_end_io) + continue; + if (r10_bio->devs[i].bio->bi_end_io != end_sync_write + && r10_bio->devs[i].bio != fbio) + for (j = 0; j < vcnt; j++) + memcpy(page_address(tbio->bi_io_vec[j].bv_page), + page_address(fbio->bi_io_vec[j].bv_page), + PAGE_SIZE); + d = r10_bio->devs[i].devnum; + atomic_inc(&r10_bio->remaining); + md_sync_acct(conf->mirrors[d].replacement->bdev, + tbio->bi_size >> 9); + generic_make_request(tbio); + } + done: if (atomic_dec_and_test(&r10_bio->remaining)) { md_done_sync(mddev, r10_bio->sectors, 1); @@ -2287,6 +2320,22 @@ static void handle_write_completed(struct r10conf *conf, struct r10bio *r10_bio) r10_bio->sectors, 0)) md_error(conf->mddev, rdev); } + rdev = conf->mirrors[dev].replacement; + if (r10_bio->devs[m].repl_bio == NULL) + continue; + if (test_bit(BIO_UPTODATE, + &r10_bio->devs[m].repl_bio->bi_flags)) { + rdev_clear_badblocks( + rdev, + r10_bio->devs[m].addr, + r10_bio->sectors); + } else { + if (!rdev_set_badblocks( + rdev, + r10_bio->devs[m].addr, + r10_bio->sectors, 0)) + md_error(conf->mddev, rdev); + } } put_buf(r10_bio); } else { @@ -2469,9 +2518,22 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr, bitmap_end_sync(mddev->bitmap, sect, &sync_blocks, 1); } - } else /* completed sync */ + } else { + /* completed sync */ + if ((!mddev->bitmap || conf->fullsync) + && conf->have_replacement + && test_bit(MD_RECOVERY_SYNC, &mddev->recovery)) { + /* Completed a full sync so the replacements + * are now fully recovered. + */ + for (i = 0; i < conf->raid_disks; i++) + if (conf->mirrors[i].replacement) + conf->mirrors[i].replacement + ->recovery_offset + = MaxSector; + } conf->fullsync = 0; - + } bitmap_close_sync(mddev->bitmap); close_sync(conf); *skipped = 1; @@ -2719,6 +2781,9 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr, sector_t first_bad, sector; int bad_sectors; + if (r10_bio->devs[i].repl_bio) + r10_bio->devs[i].repl_bio->bi_end_io = NULL; + bio = r10_bio->devs[i].bio; bio->bi_end_io = NULL; clear_bit(BIO_UPTODATE, &bio->bi_flags); @@ -2749,6 +2814,27 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr, conf->mirrors[d].rdev->data_offset; bio->bi_bdev = conf->mirrors[d].rdev->bdev; count++; + + if (conf->mirrors[d].replacement == NULL || + test_bit(Faulty, + &conf->mirrors[d].replacement->flags)) + continue; + + /* Need to set up for writing to the replacement */ + bio = r10_bio->devs[i].repl_bio; + clear_bit(BIO_UPTODATE, &bio->bi_flags); + + sector = r10_bio->devs[i].addr; + atomic_inc(&conf->mirrors[d].rdev->nr_pending); + bio->bi_next = biolist; + biolist = bio; + bio->bi_private = r10_bio; + bio->bi_end_io = end_sync_write; + bio->bi_rw = WRITE; + bio->bi_sector = sector + + conf->mirrors[d].replacement->data_offset; + bio->bi_bdev = conf->mirrors[d].replacement->bdev; + count++; } if (count < 2) { @@ -2757,6 +2843,11 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr, if (r10_bio->devs[i].bio->bi_end_io) rdev_dec_pending(conf->mirrors[d].rdev, mddev); + if (r10_bio->devs[i].repl_bio && + r10_bio->devs[i].repl_bio->bi_end_io) + rdev_dec_pending( + conf->mirrors[d].replacement, + mddev); } put_buf(r10_bio); biolist = NULL; |