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-rw-r--r--drivers/md/raid10.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 61890231972e..cc6a56a659a3 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1294,6 +1294,22 @@ static void raid10_write_request(struct mddev *mddev, struct bio *bio,
 	sector_t sectors;
 	int max_sectors;
 
+	if ((mddev_is_clustered(mddev) &&
+	     md_cluster_ops->area_resyncing(mddev, WRITE,
+					    bio->bi_iter.bi_sector,
+					    bio_end_sector(bio)))) {
+		DEFINE_WAIT(w);
+		for (;;) {
+			prepare_to_wait(&conf->wait_barrier,
+					&w, TASK_IDLE);
+			if (!md_cluster_ops->area_resyncing(mddev, WRITE,
+				 bio->bi_iter.bi_sector, bio_end_sector(bio)))
+				break;
+			schedule();
+		}
+		finish_wait(&conf->wait_barrier, &w);
+	}
+
 	/*
 	 * Register the new request and wait if the reconstruction
 	 * thread has put up a bar for new requests.