From d97a41dc9c44f5829b7af7aa69fda10fd82b6b4e Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Thu, 28 Oct 2010 17:30:20 +1100 Subject: [PATCH] md: Fix regression with raid1 arrays without persistent metadata. 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 Cc: stable@kernel.org --- drivers/md/md.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/md/md.c b/drivers/md/md.c index 225815197a3d..64f97168cefa 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -2108,6 +2108,8 @@ 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; }