From: Adam Kwolek <adam.kwolek@intel.com>
Date: Wed, 7 Dec 2011 12:58:07 +0000 (+0100)
Subject: imsm: FIX: Do not allow spare activation during rebuild
X-Git-Tag: mdadm-3.2.3~34
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fc8ca064477b0f018ed46c21d6f39bfefefad761;p=thirdparty%2Fmdadm.git

imsm: FIX: Do not allow spare activation during rebuild

Do not allow for spare device activation while rebuild is in progress,
when additional degradation occur.

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 c6509aff..973b22fc 100644
--- a/super-intel.c
+++ b/super-intel.c
@@ -6784,6 +6784,14 @@ static struct mdinfo *imsm_activate_spare(struct active_array *a,
 	if (imsm_reshape_blocks_arrays_changes(super))
 			return NULL;
 
+	/* Cannot activate another spare if rebuild is in progress already
+	 */
+	if (is_rebuilding(dev)) {
+		dprintf("imsm: No spare activation allowed. "
+			"Rebuild in progress already.\n");
+		return NULL;
+	}
+
 	if (a->info.array.level == 4)
 		/* No repair for takeovered array
 		 * imsm doesn't support raid4