diff options
Diffstat (limited to 'drivers/md/raid10.c')
| -rw-r--r-- | drivers/md/raid10.c | 31 |
1 files changed, 22 insertions, 9 deletions
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 8536ede1e712..22bb2b1b886d 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -439,26 +439,27 @@ static sector_t raid10_find_virt(conf_t *conf, sector_t sector, int dev) /** * raid10_mergeable_bvec -- tell bio layer if a two requests can be merged * @q: request queue - * @bio: the buffer head that's been built up so far + * @bvm: properties of new bio * @biovec: the request that could be merged to it. * * Return amount of bytes we can accept at this offset * If near_copies == raid_disk, there are no striping issues, * but in that case, the function isn't called at all. */ -static int raid10_mergeable_bvec(struct request_queue *q, struct bio *bio, - struct bio_vec *bio_vec) +static int raid10_mergeable_bvec(struct request_queue *q, + struct bvec_merge_data *bvm, + struct bio_vec *biovec) { mddev_t *mddev = q->queuedata; - sector_t sector = bio->bi_sector + get_start_sect(bio->bi_bdev); + sector_t sector = bvm->bi_sector + get_start_sect(bvm->bi_bdev); int max; unsigned int chunk_sectors = mddev->chunk_size >> 9; - unsigned int bio_sectors = bio->bi_size >> 9; + unsigned int bio_sectors = bvm->bi_size >> 9; max = (chunk_sectors - ((sector & (chunk_sectors - 1)) + bio_sectors)) << 9; if (max < 0) max = 0; /* bio_add cannot handle a negative return */ - if (max <= bio_vec->bv_len && bio_sectors == 0) - return bio_vec->bv_len; + if (max <= biovec->bv_len && bio_sectors == 0) + return biovec->bv_len; else return max; } @@ -1020,7 +1021,7 @@ static void error(mddev_t *mddev, mdk_rdev_t *rdev) /* * if recovery is running, make sure it aborts. */ - set_bit(MD_RECOVERY_ERR, &mddev->recovery); + set_bit(MD_RECOVERY_INTR, &mddev->recovery); } set_bit(Faulty, &rdev->flags); set_bit(MD_CHANGE_DEVS, &mddev->flags); @@ -1171,6 +1172,14 @@ static int raid10_remove_disk(mddev_t *mddev, int number) err = -EBUSY; goto abort; } + /* Only remove faulty devices in recovery + * is not possible. + */ + if (!test_bit(Faulty, &rdev->flags) && + enough(conf)) { + err = -EBUSY; + goto abort; + } p->rdev = NULL; synchronize_rcu(); if (atomic_read(&rdev->nr_pending)) { @@ -1237,6 +1246,7 @@ static void end_sync_write(struct bio *bio, int error) if (!uptodate) md_error(mddev, conf->mirrors[d].rdev); + update_head_pos(i, r10_bio); while (atomic_dec_and_test(&r10_bio->remaining)) { @@ -1844,7 +1854,8 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i if (rb2) atomic_dec(&rb2->remaining); r10_bio = rb2; - if (!test_and_set_bit(MD_RECOVERY_ERR, &mddev->recovery)) + if (!test_and_set_bit(MD_RECOVERY_INTR, + &mddev->recovery)) printk(KERN_INFO "raid10: %s: insufficient working devices for recovery.\n", mdname(mddev)); break; @@ -2127,6 +2138,8 @@ static int run(mddev_t *mddev) !test_bit(In_sync, &disk->rdev->flags)) { disk->head_position = 0; mddev->degraded++; + if (disk->rdev) + conf->fullsync = 1; } } |