From: Adam Kwolek <adam.kwolek@intel.com>
Date: Thu, 9 Jun 2011 03:00:55 +0000 (+1000)
Subject: imsm: FIX: Calculate backup location based on metadata information
X-Git-Tag: mdadm-3.2.2~36
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=75b69ea42012c2e0b052459ed81678845bec3399;p=thirdparty%2Fmdadm.git

imsm: FIX: Calculate backup location based on metadata information

Use metadata information to calculate backup write offset.

Signed-off-by: Adam Kwolek <adam.kwolek@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
---

diff --git a/super-intel.c b/super-intel.c
index 81027202..0ac3827d 100644
--- a/super-intel.c
+++ b/super-intel.c
@@ -7849,7 +7849,7 @@ int recover_backup_imsm(struct supertype *st, struct mdinfo *info)
 
 	write_offset = ((unsigned long long)
 			__le32_to_cpu(migr_rec->dest_1st_member_lba) +
-			info->data_offset) * 512;
+			__le32_to_cpu(map_dest->pba_of_lba0)) * 512;
 
 	unit_len = __le32_to_cpu(migr_rec->dest_depth_per_unit) * 512;
 	if (posix_memalign((void **)&buf, 512, unit_len) != 0)