From 3743e8ce777f4f1cfa1797dc1d96a4e94b361a11 Mon Sep 17 00:00:00 2001
From: NeilBrown <neilb@suse.de>
Date: Thu, 28 Oct 2010 17:30:20 +1100
Subject: [PATCH] md: Fix regression with raid1 arrays without persistent
metadata.
commit d97a41dc9c44f5829b7af7aa69fda10fd82b6b4e upstream.
A RAID1 which has no persistent metadata, whether internal or
external, will hang on the first write.
This is caused by commit 070dc6dd7103b6b3f7e4d46e754354a5c15f366e
In that case, MD_CHANGE_PENDING never gets cleared.
So during md_update_sb, is neither persistent or external,
clear MD_CHANGE_PENDING.
This is suitable for 2.6.36-stable.
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
drivers/md/md.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/md/md.c b/drivers/md/md.c
index f20d13e717d5..8871092c46d7 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -2172,6 +2172,8 @@ repeat:
if (!mddev->persistent) {
clear_bit(MD_CHANGE_CLEAN, &mddev->flags);
clear_bit(MD_CHANGE_DEVS, &mddev->flags);
+ if (!mddev->external)
+ clear_bit(MD_CHANGE_PENDING, &mddev->flags);
wake_up(&mddev->sb_wait);
return;
}
--
2.34.1