From fee68723cf6ae00082f70f3eff17fceab2a4f7d7 Mon Sep 17 00:00:00 2001
From: Krzysztof Wojcik <krzysztof.wojcik@intel.com>
Date: Wed, 20 Apr 2011 15:39:53 +1000
Subject: [PATCH] md: Cleanup after raid45->raid0 takeover
Problem:
After raid4->raid0 takeover operation, another takeover operation
(e.g raid0->raid10) results "kernel oops".
Root cause:
Variables 'degraded' in mddev structure is not cleared
on raid45->raid0 takeover.
This patch reset this variable.
Signed-off-by: Krzysztof Wojcik <krzysztof.wojcik@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
---
drivers/md/md.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 6e853c61d87e..7d6f7f18a920 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -3170,6 +3170,7 @@ level_store(mddev_t *mddev, const char *buf, size_t len)
mddev->layout = mddev->new_layout;
mddev->chunk_sectors = mddev->new_chunk_sectors;
mddev->delta_disks = 0;
+ mddev->degraded = 0;
if (mddev->pers->sync_request == NULL) {
/* this is now an array without redundancy, so
* it must always be in_sync
--
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