diff options
| author | Goldwyn Rodrigues <rgoldwyn@suse.com> | 2015-08-19 00:14:42 +0200 |
|---|---|---|
| committer | Goldwyn Rodrigues <rgoldwyn@suse.com> | 2015-10-12 08:32:05 +0200 |
| commit | c40f341f1e7fd4eddcfc5881d94cfa8669071ee6 (patch) | |
| tree | d8d572cb6b88dcd1102596d31b2bd153f79fdaab /drivers/md/md.c | |
| parent | md: Increment version for clustered bitmaps (diff) | |
| download | linux-c40f341f1e7fd4eddcfc5881d94cfa8669071ee6.tar.xz linux-c40f341f1e7fd4eddcfc5881d94cfa8669071ee6.zip | |
md-cluster: Use a small window for resync
Suspending the entire device for resync could take too long. Resync
in small chunks.
cluster's resync window (32M) is maintained in r1conf as
cluster_sync_low and cluster_sync_high and processed in
raid1's sync_request(). If the current resync is outside the cluster
resync window:
1. Set the cluster_sync_low to curr_resync_completed.
2. Check if the sync will fit in the new window, if not issue a
wait_barrier() and set cluster_sync_low to sector_nr.
3. Set cluster_sync_high to cluster_sync_low + resync_window.
4. Send a message to all nodes so they may add it in their suspension
list.
bitmap_cond_end_sync is modified to allow to force a sync inorder
to get the curr_resync_completed uptodate with the sector passed.
Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'drivers/md/md.c')
| -rw-r--r-- | drivers/md/md.c | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c index 1e1bdd86f40c..9798a9921a38 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -7805,9 +7805,6 @@ void md_do_sync(struct md_thread *thread) md_new_event(mddev); update_time = jiffies; - if (mddev_is_clustered(mddev)) - md_cluster_ops->resync_start(mddev, j, max_sectors); - blk_start_plug(&plug); while (j < max_sectors) { sector_t sectors; @@ -7871,8 +7868,6 @@ void md_do_sync(struct md_thread *thread) j = max_sectors; if (j > 2) mddev->curr_resync = j; - if (mddev_is_clustered(mddev)) - md_cluster_ops->resync_info_update(mddev, j, max_sectors); mddev->curr_mark_cnt = io_sectors; if (last_check == 0) /* this is the earliest that rebuild will be @@ -7979,9 +7974,6 @@ void md_do_sync(struct md_thread *thread) } } skip: - if (mddev_is_clustered(mddev)) - md_cluster_ops->resync_finish(mddev); - set_bit(MD_CHANGE_DEVS, &mddev->flags); spin_lock(&mddev->lock); |