From: Darrick J. Wong <darrick.wong@oracle.com>
Date: Sun, 14 Dec 2014 03:06:15 +0000 (-0500)
Subject: resize2fs: don't exit if shrinking sparse_super2 fs to one bg
X-Git-Tag: v1.43-WIP-2015-05-18~109
X-Git-Url: https://git.whamcloud.com/?a=commitdiff_plain;h=4495c5a0eb833cafaa2c5480fecd3f10a4d6609c;p=tools%2Fe2fsprogs.git

resize2fs: don't exit if shrinking sparse_super2 fs to one bg

If we're shrinking a sparse_super2 filesystem to a single block group,
the superblock will be in block 0.  This is perfectly valid (for block
group 0 with a blocksize > 1024) so don't exit.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
---

diff --git a/resize/resize2fs.c b/resize/resize2fs.c
index 8c5db86..4861719 100644
--- a/resize/resize2fs.c
+++ b/resize/resize2fs.c
@@ -2126,7 +2126,7 @@ static errcode_t reserve_sparse_super2_last_group(ext2_resize_t rfs,
 	if (retval)
 		return retval;
 
-	if (!sb) {
+	if (last_bg && !sb) {
 		fputs(_("Should never happen!  No sb in last super_sparse bg?\n"),
 		      stderr);
 		exit(1);