From: Karel Zak <kzak@redhat.com>
Date: Mon, 17 Sep 2018 09:58:50 +0000 (+0200)
Subject: libfdisk: count gaps to possible size when resize
X-Git-Tag: v2.33-rc1~13
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2f35c1ead621f42f32f7777232568cb03185b473;p=thirdparty%2Futil-linux.git

libfdisk: count gaps to possible size when resize

The current code counts only partition sizes when it counts possible
space, but we have gaps between the partitions. It seems better to
count all based on offsets rather than sizes.

Addresses: https://github.com/karelzak/util-linux/issues/693
Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/libfdisk/src/partition.c b/libfdisk/src/partition.c
index a790dc9c94..ebcf6bf5c7 100644
--- a/libfdisk/src/partition.c
+++ b/libfdisk/src/partition.c
@@ -1113,7 +1113,7 @@ static int resize_get_last_possible(
 			break;
 		} else {
 			last = pa;
-			*maxsz += pa->size;
+			*maxsz = pa->size - (start - pa->start);
 			DBG(TAB, ul_debugobj(tb, "  new max=%ju (last updated)", (uintmax_t) *maxsz));
 		}
 	}