From: Kwolek, Adam <adam.kwolek@intel.com>
Date: Wed, 12 Jan 2011 10:42:44 +0000 (+1100)
Subject: FIX: size is passed incorrectly
X-Git-Tag: mdadm-3.2~91
X-Git-Url: http://git.ipfire.org/?p=thirdparty%2Fmdadm.git;a=commitdiff_plain;h=d8eb27f71a19b203e86d778a4edf92b2f0aaf5bb

FIX: size is passed incorrectly

reshape_super() called from reshape_container() with size set to
info->component_size gives size in reshape_super == -2 due to unsigned
signed conversion (info->component_size is not initializes).

As size is not changed during container reshape '-1' value is passed
to indicate this.

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

diff --git a/Grow.c b/Grow.c
index b3edbc59..898eb3eb 100644
--- a/Grow.c
+++ b/Grow.c
@@ -2064,7 +2064,10 @@ int reshape_container(char *container, int cfd, char *devname,
 {
 	struct mdinfo *cc = NULL;
 
-	if (reshape_super(st, info->component_size, info->new_level,
+	/* component_size is not meaningful for a container,
+	 * so pass '-1' meaning 'no change'
+	 */
+	if (reshape_super(st, -1, info->new_level,
 			  info->new_layout, info->new_chunk,
 			  info->array.raid_disks + info->delta_disks,
 			  backup_file, devname, quiet))