diff options
Diffstat (limited to 'drivers/md/raid10.c')
| -rw-r--r-- | drivers/md/raid10.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 72e52921c545..1edd58a3098b 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -4605,6 +4605,32 @@ read_more: r10_bio->master_bio = read_bio; r10_bio->read_slot = r10_bio->devs[r10_bio->read_slot].devnum; + /* + * Broadcast RESYNC message to other nodes, so all nodes would not + * write to the region to avoid conflict. + */ + if (mddev_is_clustered(mddev) && conf->cluster_sync_high <= sector_nr) { + struct mdp_superblock_1 *sb = NULL; + int sb_reshape_pos = 0; + + conf->cluster_sync_low = sector_nr; + conf->cluster_sync_high = sector_nr + CLUSTER_RESYNC_WINDOW_SECTORS; + sb = page_address(rdev->sb_page); + if (sb) { + sb_reshape_pos = le64_to_cpu(sb->reshape_position); + /* + * Set cluster_sync_low again if next address for array + * reshape is less than cluster_sync_low. Since we can't + * update cluster_sync_low until it has finished reshape. + */ + if (sb_reshape_pos < conf->cluster_sync_low) + conf->cluster_sync_low = sb_reshape_pos; + } + + md_cluster_ops->resync_info_update(mddev, conf->cluster_sync_low, + conf->cluster_sync_high); + } + /* Now find the locations in the new layout */ __raid10_find_phys(&conf->geo, r10_bio); @@ -4756,6 +4782,13 @@ static void end_reshape(struct r10conf *conf) conf->fullsync = 0; } +static void raid10_update_reshape_pos(struct mddev *mddev) +{ + struct r10conf *conf = mddev->private; + + conf->reshape_progress = mddev->reshape_position; +} + static int handle_reshape_read_error(struct mddev *mddev, struct r10bio *r10_bio) { @@ -4924,6 +4957,7 @@ static struct md_personality raid10_personality = .check_reshape = raid10_check_reshape, .start_reshape = raid10_start_reshape, .finish_reshape = raid10_finish_reshape, + .update_reshape_pos = raid10_update_reshape_pos, .congested = raid10_congested, }; |