From: Guoqing Jiang <gqjiang@suse.com>
Date: Mon, 9 Apr 2018 09:01:21 +0000 (+0800)
Subject: md-cluster: don't update recovery_offset for faulty device
X-Git-Tag: v4.17-rc2~17^2~2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=0ea9924abe125a0c1277484f1a3d512b3f45c320;p=thirdparty%2Fkernel%2Flinux.git

md-cluster: don't update recovery_offset for faulty device

Device could become faulty when clustered array handling
METADATA_UPDATED msg, so we don't need to call read_rdev
for this device.

Signed-off-by: Guoqing Jiang <gqjiang@suse.com>
Signed-off-by: Shaohua Li <shli@fb.com>
---

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 3bea45e8ccff1..c208c01f63a5a 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -9256,8 +9256,10 @@ void md_reload_sb(struct mddev *mddev, int nr)
 	check_sb_changes(mddev, rdev);
 
 	/* Read all rdev's to update recovery_offset */
-	rdev_for_each_rcu(rdev, mddev)
-		read_rdev(mddev, rdev);
+	rdev_for_each_rcu(rdev, mddev) {
+		if (!test_bit(Faulty, &rdev->flags))
+			read_rdev(mddev, rdev);
+	}
 }
 EXPORT_SYMBOL(md_reload_sb);