xref: /illumos-gate/usr/src/test/zfs-tests/tests/functional/nopwrite/nopwrite_mtime.ksh (revision 7b07063d906859b2be1e88791f801b3c96e432f6) 
1#!/usr/bin/ksh
2
3#
4# This file and its contents are supplied under the terms of the
5# Common Development and Distribution License ("CDDL"), version 1.0.
6# You may only use this file in accordance with the terms of version
7# 1.0 of the CDDL.
8#
9# A full copy of the text of the CDDL should have accompanied this
10# source.  A copy of the CDDL is also available via the Internet at
11# http://www.illumos.org/license/CDDL.
12#
13
14#
15# Copyright (c) 2012 by Delphix. All rights reserved.
16#
17
18. $STF_SUITE/include/libtest.shlib
19. $STF_SUITE/tests/functional/nopwrite/nopwrite.shlib
20
21#
22# Description:
23# Verify that nopwrite still updates file metadata correctly
24#
25# Strategy:
26# 1. Create a clone with nopwrite enabled.
27# 2. Write to the file in that clone and verify the mtime and ctime change,
28# but the atime does not.
29#
30
31verify_runnable "global"
32origin="$TESTPOOL/$TESTFS"
33log_onexit cleanup
34
35function cleanup
36{
37	datasetexists $origin && log_must $ZFS destroy -R $origin
38	log_must $ZFS create -o mountpoint=$TESTDIR $origin
39}
40
41log_assert "nopwrite updates file metadata correctly"
42
43log_must $ZFS set compress=on $origin
44log_must $ZFS set checksum=sha256 $origin
45$DD if=/dev/urandom of=$TESTDIR/file bs=1024k count=$MEGS conv=notrunc \
46    >/dev/null 2>&1 || log_fail "dd into $TESTDIR/file failed."
47$ZFS snapshot $origin@a || log_fail "zfs snap failed"
48log_must $ZFS clone $origin@a $origin/clone
49
50o_atime=$($LS -E% all $TESTDIR/clone/file | $AWK '/atime/ {print $4}')
51o_ctime=$($LS -E% all $TESTDIR/clone/file | $AWK '/ctime/ {print $4}')
52o_mtime=$($LS -E% all $TESTDIR/clone/file | $AWK '/mtime/ {print $4}')
53$DD if=/$TESTDIR/file of=/$TESTDIR/clone/file bs=1024k count=$MEGS \
54    conv=notrunc >/dev/null 2>&1 || log_fail "dd failed."
55atime=$($LS -E% all $TESTDIR/clone/file | $AWK '/atime/ {print $4}')
56ctime=$($LS -E% all $TESTDIR/clone/file | $AWK '/ctime/ {print $4}')
57mtime=$($LS -E% all $TESTDIR/clone/file | $AWK '/mtime/ {print $4}')
58
59[[ $o_atime = $atime ]] || log_fail "atime changed: $o_atime $atime"
60[[ $o_ctime = $ctime ]] && log_fail "ctime unchanged: $o_ctime $ctime"
61[[ $o_mtime = $mtime ]] && log_fail "mtime unchanged: $o_mtime $mtime"
62
63log_must verify_nopwrite $origin $origin@a $origin/clone
64
65log_pass "nopwrite updates file metadata correctly"
66