diff options
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/raid10.c | 62 | ||||
| -rw-r--r-- | drivers/md/raid10.h | 5 |
2 files changed, 41 insertions, 26 deletions
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 1725ec1e1e82..5583201e5cde 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1099,7 +1099,6 @@ static int raid10_add_disk(mddev_t *mddev, mdk_rdev_t *rdev) conf_t *conf = mddev->private; int err = -EEXIST; int mirror; - mirror_info_t *p; int first = 0; int last = conf->raid_disks - 1; @@ -1119,32 +1118,36 @@ static int raid10_add_disk(mddev_t *mddev, mdk_rdev_t *rdev) mirror = rdev->saved_raid_disk; else mirror = first; - for ( ; mirror <= last ; mirror++) - if ( !(p=conf->mirrors+mirror)->rdev) { - - disk_stack_limits(mddev->gendisk, rdev->bdev, - rdev->data_offset << 9); - /* as we don't honour merge_bvec_fn, we must - * never risk violating it, so limit - * ->max_segments to one lying with a single - * page, as a one page request is never in - * violation. - */ - if (rdev->bdev->bd_disk->queue->merge_bvec_fn) { - blk_queue_max_segments(mddev->queue, 1); - blk_queue_segment_boundary(mddev->queue, - PAGE_CACHE_SIZE - 1); - } + for ( ; mirror <= last ; mirror++) { + mirror_info_t *p = &conf->mirrors[mirror]; + if (p->recovery_disabled == mddev->recovery_disabled) + continue; + if (!p->rdev) + continue; - p->head_position = 0; - rdev->raid_disk = mirror; - err = 0; - if (rdev->saved_raid_disk != mirror) - conf->fullsync = 1; - rcu_assign_pointer(p->rdev, rdev); - break; + disk_stack_limits(mddev->gendisk, rdev->bdev, + rdev->data_offset << 9); + /* as we don't honour merge_bvec_fn, we must + * never risk violating it, so limit + * ->max_segments to one lying with a single + * page, as a one page request is never in + * violation. + */ + if (rdev->bdev->bd_disk->queue->merge_bvec_fn) { + blk_queue_max_segments(mddev->queue, 1); + blk_queue_segment_boundary(mddev->queue, + PAGE_CACHE_SIZE - 1); } + p->head_position = 0; + rdev->raid_disk = mirror; + err = 0; + if (rdev->saved_raid_disk != mirror) + conf->fullsync = 1; + rcu_assign_pointer(p->rdev, rdev); + break; + } + md_integrity_add_rdev(rdev, mddev); print_conf(conf); return err; @@ -1169,6 +1172,7 @@ static int raid10_remove_disk(mddev_t *mddev, int number) * is not possible. */ if (!test_bit(Faulty, &rdev->flags) && + mddev->recovery_disabled != p->recovery_disabled && enough(conf)) { err = -EBUSY; goto abort; @@ -1383,8 +1387,14 @@ static void recovery_request_write(mddev_t *mddev, r10bio_t *r10_bio) md_sync_acct(conf->mirrors[d].rdev->bdev, wbio->bi_size >> 9); if (test_bit(R10BIO_Uptodate, &r10_bio->state)) generic_make_request(wbio); - else - bio_endio(wbio, -EIO); + else { + printk(KERN_NOTICE + "md/raid10:%s: recovery aborted due to read error\n", + mdname(mddev)); + conf->mirrors[d].recovery_disabled = mddev->recovery_disabled; + set_bit(MD_RECOVERY_INTR, &mddev->recovery); + bio_endio(wbio, 0); + } } diff --git a/drivers/md/raid10.h b/drivers/md/raid10.h index 944b1104d3b4..a485914c48c1 100644 --- a/drivers/md/raid10.h +++ b/drivers/md/raid10.h @@ -6,6 +6,11 @@ typedef struct mirror_info mirror_info_t; struct mirror_info { mdk_rdev_t *rdev; sector_t head_position; + int recovery_disabled; /* matches + * mddev->recovery_disabled + * when we shouldn't try + * recovering this device. + */ }; typedef struct r10bio_s r10bio_t; |