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@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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