Suspend writes in RAID1 if within range
If there is a resync going on, all nodes must suspend writes to the
range. This is recorded in the suspend_info/suspend_list.
If there is an I/O within the ranges of any of the suspend_info,
should_suspend will return 1.
Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 4153da5..3aa58ab 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1101,8 +1101,10 @@
md_write_start(mddev, bio); /* wait on superblock update early */
if (bio_data_dir(bio) == WRITE &&
- bio_end_sector(bio) > mddev->suspend_lo &&
- bio->bi_iter.bi_sector < mddev->suspend_hi) {
+ ((bio_end_sector(bio) > mddev->suspend_lo &&
+ bio->bi_iter.bi_sector < mddev->suspend_hi) ||
+ (mddev_is_clustered(mddev) &&
+ md_cluster_ops->area_resyncing(mddev, bio->bi_iter.bi_sector, bio_end_sector(bio))))) {
/* As the suspend_* range is controlled by
* userspace, we want an interruptible
* wait.
@@ -1113,7 +1115,10 @@
prepare_to_wait(&conf->wait_barrier,
&w, TASK_INTERRUPTIBLE);
if (bio_end_sector(bio) <= mddev->suspend_lo ||
- bio->bi_iter.bi_sector >= mddev->suspend_hi)
+ bio->bi_iter.bi_sector >= mddev->suspend_hi ||
+ (mddev_is_clustered(mddev) &&
+ !md_cluster_ops->area_resyncing(mddev,
+ bio->bi_iter.bi_sector, bio_end_sector(bio))))
break;
schedule();
}