From: Marcus Huewe Subject: [PATCH 1/2] tests: test "mke2fs -E offset=N" filesystem size calculation Date: Thu, 12 May 2016 18:22:12 +0200 Message-ID: <20160512162212.GA4627@linux> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-ext4@vger.kernel.org To: tytso@mit.edu Return-path: Received: from mout.gmx.net ([212.227.17.20]:58677 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751628AbcELQWd (ORCPT ); Thu, 12 May 2016 12:22:33 -0400 Content-Disposition: inline Sender: linux-ext4-owner@vger.kernel.org List-ID: If "mke2fs -E offset=N ..." is called without a specified filesystem size, the offset should be subtracted from the default filesystem size (see commit 87d9b2fb). If "mke2fs -E offset=N ..." is called with an explicitly specified filesystem size, the specified filesystem size should be used. Also, call dd with the "iflag=fullblock" option, if it is going to read from a pipe. Signed-off-by: Marcus Huewe --- tests/t_mke2fs_offset/script | 28 +++++++++++++++++++++------- 1 file changed, 21 insertions(+), 7 deletions(-) diff --git a/tests/t_mke2fs_offset/script b/tests/t_mke2fs_offset/script index 97b9bd1..e4bc3c4 100755 --- a/tests/t_mke2fs_offset/script +++ b/tests/t_mke2fs_offset/script @@ -1,20 +1,34 @@ test_description="mke2fs with offset option (-E offset=N)" OUT="$test_name.log" -echo "testing mke2fs with -E offset=524288 option" > "$OUT" -yes a | dd of="$TMPFILE" bs=1k count=2048 2>/dev/null +echo "testing mke2fs with -E offset=524288 option (no fssize)" > "$OUT" +yes a | dd of="$TMPFILE" bs=1k count=2048 iflag=fullblock 2>>"$OUT" +$MKE2FS -F -b 1024 -E offset=524288 "$TMPFILE" >> "$OUT" 2>&1 +# compute crc of the first 512 1k blocks +crc_first1=`dd if="$TMPFILE" bs=1k count=512 2>/dev/null | $CRCSUM` + +echo "testing mke2fs with -E offset=524288 option (explicit fssize)" >> "$OUT" +yes a | dd of="$TMPFILE" bs=1k count=2048 iflag=fullblock 2>>"$OUT" $MKE2FS -F -b 1024 -E offset=524288 "$TMPFILE" 1024 >> "$OUT" 2>&1 # compute crc of the first and last 512 1k blocks -crc_first=`dd if="$TMPFILE" bs=1k count=512 2>/dev/null | $CRCSUM` -crc_last=`dd if="$TMPFILE" bs=1k count=512 skip=1536 2>/dev/null | $CRCSUM` +crc_first2=`dd if="$TMPFILE" bs=1k count=512 2>/dev/null | $CRCSUM` +crc_last2=`dd if="$TMPFILE" bs=1k count=512 skip=1536 2>/dev/null | $CRCSUM` crc_exp=`yes a | dd bs=1k count=512 2>/dev/null | $CRCSUM` +# a warning should be only emitted by the first mke2fs call +warning=`grep -c "offset specified without an explicit file system size." \ + "$OUT"` -if [ "$crc_first" = "$crc_last" -a "$crc_first" = "$crc_exp" ]; then +if [ "$warning" -eq 1 -a \ + "$crc_first1" = "$crc_first2" -a \ + "$crc_first2" = "$crc_last2" -a \ + "$crc_first2" = "$crc_exp" ]; then echo "$test_name: $test_description: ok" touch "$test_name.ok" else echo "$test_name: $test_description: failed" - echo "crc_first: $crc_first" > "$test_name.failed" - echo "crc_last: $crc_last" >> "$test_name.failed" + echo "warning: $warning" > "$test_name.failed" + echo "crc_first1: $crc_first1" >> "$test_name.failed" + echo "crc_first2: $crc_first2" >> "$test_name.failed" + echo "crc_last2: $crc_last2" >> "$test_name.failed" echo "crc_exp: $crc_exp" >> "$test_name.failed" fi -- 2.6.3