From: NeilBrown <neilb@suse.com>
Date: Thu, 28 Jan 2016 00:44:27 +0000 (+1100)
Subject: super1: fix calculation of space_before
X-Git-Tag: mdadm-3.4~5
X-Git-Url: http://git.ipfire.org/?p=thirdparty%2Fmdadm.git;a=commitdiff_plain;h=ac92b44a8736071fef61116d04b4e1bfebee30ab

super1: fix calculation of space_before

This code was meant to update 'earliest' but clearly never doesn't.

This bug would only affect an array with a very large bitmap so it is unlikely
to be significant.

Signed-off-by: NeilBrown <neilb@suse.com>
---

diff --git a/super1.c b/super1.c
index 10e00652..5d08d4de 100644
--- a/super1.c
+++ b/super1.c
@@ -979,7 +979,7 @@ static void getinfo_super1(struct supertype *st, struct mdinfo *info, char *map)
 			size /= 512;
 			bmend += size;
 			if (bmend > earliest)
-				bmend = earliest;
+				earliest = bmend;
 		}
 		if (sb->bblog_offset && sb->bblog_size) {
 			unsigned long long bbend = super_offset;