From 5fa4f8bac9516b988d2ccd3f05f4267f8da24269 Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Fri, 25 Oct 2019 09:08:56 +0200
Subject: [PATCH] md/raid1: avoid soft lockup under high load
Git-commit: 5fa4f8bac9516b988d2ccd3f05f4267f8da24269
Patch-mainline: v5.5-rc1
References: bsc#1166003

As all I/O is being pushed through a kernel thread the softlockup
watchdog might be triggered under high load.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Coly Li <colyli@suse.de>

---
 drivers/md/raid1.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index bb29aeefcbd0..a409ab6f30bc 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -819,6 +819,7 @@ static void flush_bio_list(struct r1conf *conf, struct bio *bio)
 		else
 			generic_make_request(bio);
 		bio = next;
+		cond_resched();
 	}
 }
 
-- 
2.25.0