diff options
Diffstat (limited to 'drivers/md/raid1.c')
| -rw-r--r-- | drivers/md/raid1.c | 40 |
1 files changed, 36 insertions, 4 deletions
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 5d88329e3c7a..9b374c91db66 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -1135,8 +1135,19 @@ static int end_sync_write(struct bio *bio, unsigned int bytes_done, int error) mirror = i; break; } - if (!uptodate) + if (!uptodate) { + int sync_blocks = 0; + sector_t s = r1_bio->sector; + long sectors_to_go = r1_bio->sectors; + /* make sure these bits doesn't get cleared. */ + do { + bitmap_end_sync(mddev->bitmap, r1_bio->sector, + &sync_blocks, 1); + s += sync_blocks; + sectors_to_go -= sync_blocks; + } while (sectors_to_go > 0); md_error(mddev, conf->mirrors[mirror].rdev); + } update_head_pos(mirror, r1_bio); @@ -1402,6 +1413,9 @@ static void raid1d(mddev_t *mddev) clear_bit(R1BIO_BarrierRetry, &r1_bio->state); clear_bit(R1BIO_Barrier, &r1_bio->state); for (i=0; i < conf->raid_disks; i++) + if (r1_bio->bios[i]) + atomic_inc(&r1_bio->remaining); + for (i=0; i < conf->raid_disks; i++) if (r1_bio->bios[i]) { struct bio_vec *bvec; int j; @@ -1789,6 +1803,11 @@ static int run(mddev_t *mddev) mdname(mddev), mddev->level); goto out; } + if (mddev->reshape_position != MaxSector) { + printk("raid1: %s: reshape_position set but not supported\n", + mdname(mddev)); + goto out; + } /* * copy the already verified devices into our private RAID1 * bookkeeping area. [whatever we allocate in run(), @@ -1971,7 +1990,7 @@ static int raid1_resize(mddev_t *mddev, sector_t sectors) return 0; } -static int raid1_reshape(mddev_t *mddev, int raid_disks) +static int raid1_reshape(mddev_t *mddev) { /* We need to: * 1/ resize the r1bio_pool @@ -1988,10 +2007,22 @@ static int raid1_reshape(mddev_t *mddev, int raid_disks) struct pool_info *newpoolinfo; mirror_info_t *newmirrors; conf_t *conf = mddev_to_conf(mddev); - int cnt; + int cnt, raid_disks; int d, d2; + /* Cannot change chunk_size, layout, or level */ + if (mddev->chunk_size != mddev->new_chunk || + mddev->layout != mddev->new_layout || + mddev->level != mddev->new_level) { + mddev->new_chunk = mddev->chunk_size; + mddev->new_layout = mddev->layout; + mddev->new_level = mddev->level; + return -EINVAL; + } + + raid_disks = mddev->raid_disks + mddev->delta_disks; + if (raid_disks < conf->raid_disks) { cnt=0; for (d= 0; d < conf->raid_disks; d++) @@ -2038,6 +2069,7 @@ static int raid1_reshape(mddev_t *mddev, int raid_disks) mddev->degraded += (raid_disks - conf->raid_disks); conf->raid_disks = mddev->raid_disks = raid_disks; + mddev->delta_disks = 0; conf->last_used = 0; /* just make sure it is in-range */ lower_barrier(conf); @@ -2079,7 +2111,7 @@ static struct mdk_personality raid1_personality = .spare_active = raid1_spare_active, .sync_request = sync_request, .resize = raid1_resize, - .reshape = raid1_reshape, + .check_reshape = raid1_reshape, .quiesce = raid1_quiesce, }; |