From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Darrick J. Wong" Subject: [PATCH 24/47] resize2fs: don't exit if shrinking sparse_super2 fs to one bg Date: Fri, 07 Nov 2014 13:53:23 -0800 Message-ID: <20141107215323.883.85339.stgit@birch.djwong.org> References: <20141107215042.883.49888.stgit@birch.djwong.org> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Cc: linux-ext4@vger.kernel.org To: tytso@mit.edu, darrick.wong@oracle.com Return-path: Received: from userp1040.oracle.com ([156.151.31.81]:45912 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752615AbaKGVx1 (ORCPT ); Fri, 7 Nov 2014 16:53:27 -0500 In-Reply-To: <20141107215042.883.49888.stgit@birch.djwong.org> Sender: linux-ext4-owner@vger.kernel.org List-ID: 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 --- resize/resize2fs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) 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);