sysfs: avoid possible data corruption in sys_load.

[thirdparty/mdadm.git] / kernel-patch-2.6.18

### Diffstat output
 ./drivers/md/md.c |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff .prev/drivers/md/md.c ./drivers/md/md.c
--- .prev/drivers/md/md.c	2006-10-23 10:26:37.000000000 +1000
+++ ./drivers/md/md.c	2006-12-21 16:28:29.000000000 +1100
@@ -1783,7 +1783,8 @@ state_store(mdk_rdev_t *rdev, const char
 		else {
 			mddev_t *mddev = rdev->mddev;
 			kick_rdev_from_array(rdev);
-			md_update_sb(mddev);
+			if (mddev->pers)
+				md_update_sb(mddev);
 			md_new_event(mddev);
 			err = 0;
 		}
@@ -1994,6 +1995,8 @@ static mdk_rdev_t *md_import_device(dev_
 	kobject_init(&rdev->kobj);
 
 	rdev->desc_nr = -1;
+	rdev->saved_raid_disk = -1;
+	rdev->raid_disk = -1;
 	rdev->flags = 0;
 	rdev->data_offset = 0;
 	rdev->sb_events = 0;
@@ -3991,6 +3994,7 @@ static int set_array_info(mddev_t * mdde
 		mddev->major_version = info->major_version;
 		mddev->minor_version = info->minor_version;
 		mddev->patch_version = info->patch_version;
+		mddev->persistent = ! info->not_persistent;
 		return 0;
 	}
 	mddev->major_version = MD_MAJOR_VERSION;