[PATCH] md: Fix bug where spares don't always get rebuilt properly when they become...

If save_raid_disk is >= 0, then the device could be a device that is
already in sync that is being re-added.  So we need to default this
value to -1.

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>

diff --git a/drivers/md/md.c b/drivers/md/md.c
index c9d2919347df55c9db187571206f33e6e1619bf0..1869e819afb8d7b9be50860a2acfd3ac26b5ec5c 100644 (file)
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -1994,6 +1994,7 @@ static mdk_rdev_t *md_import_device(dev_t newdev, int super_format, int super_mi
        kobject_init(&rdev->kobj);
 
        rdev->desc_nr = -1;
+       rdev->saved_raid_disk = -1;
        rdev->flags = 0;
        rdev->data_offset = 0;
        rdev->sb_events = 0;