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Message-Id: <1323353349-9675-1-git-send-email-jack@suse.cz>
Date: Thu, 8 Dec 2011 15:09:09 +0100
From: Jan Kara <jack@...e.cz>
To: tytso@....edu
Cc: linux-ext4@...r.kernel.org, Jan Kara <jack@...e.cz>
Subject: [PATCH] resize2fs: Calculate s_first_data_block into minimum filesystem size
calculate_minimum_resize_size() forgot to account s_first_data_block
into minimum filesystem size. Thus in case the size of filesystem was
such that the last group had the minimal size (50 blocks + metadata
overhead), the code in adjust_fs_info() decided the group is unneeded,
removed it, and in some cases the resizing then failed with ENOSPC.
Fix the issue by properly accounting for s_first_data_block in
calculate_minimum_resize_size().
Signed-off-by: Jan Kara <jack@...e.cz>
---
resize/resize2fs.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/resize/resize2fs.c b/resize/resize2fs.c
index 06ce73e..dc2805d 100644
--- a/resize/resize2fs.c
+++ b/resize/resize2fs.c
@@ -2033,6 +2033,7 @@ blk64_t calculate_minimum_resize_size(ext2_filsys fs)
if (ext2fs_bg_has_super(fs, groups-1))
overhead += SUPER_OVERHEAD(fs);
+ overhead += fs->super->s_first_data_block;
/*
* since our last group doesn't have to be BLOCKS_PER_GROUP large, we
--
1.7.1
--
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