1#!/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, 2016 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 && destroy_dataset $origin -R
38	log_must zfs create -o mountpoint=$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 $origin
45dd if=/dev/urandom of=$TESTDIR/file bs=1024k count=$MEGS conv=notrunc \
46    >/dev/null 2>&1 || log_fail "dd into $TESTDIR/file failed."
47zfs snapshot $origin@a || log_fail "zfs snap failed"
48log_must zfs clone $origin@a $origin/clone
49
50if is_linux; then
51	o_atime=$(stat -c %X $TESTDIR/clone/file)
52	o_ctime=$(stat -c %Z $TESTDIR/clone/file)
53	o_mtime=$(stat -c %Y $TESTDIR/clone/file)
54elif is_freebsd; then
55	o_atime=$(stat -f "%a" $TESTDIR/clone/file)
56	o_ctime=$(stat -f "%c" $TESTDIR/clone/file)
57	o_mtime=$(stat -f "%m" $TESTDIR/clone/file)
58else
59	o_atime=$(ls -E% all $TESTDIR/clone/file | awk '/atime/ {print $4}')
60	o_ctime=$(ls -E% all $TESTDIR/clone/file | awk '/ctime/ {print $4}')
61	o_mtime=$(ls -E% all $TESTDIR/clone/file | awk '/mtime/ {print $4}')
62fi
63
64sleep 1
65dd if=/$TESTDIR/file of=/$TESTDIR/clone/file bs=1024k count=$MEGS \
66    conv=notrunc >/dev/null 2>&1 || log_fail "dd failed."
67sleep 1
68
69if is_linux; then
70	atime=$(stat -c %X $TESTDIR/clone/file)
71	ctime=$(stat -c %Z $TESTDIR/clone/file)
72	mtime=$(stat -c %Y $TESTDIR/clone/file)
73elif is_freebsd; then
74	atime=$(stat -f "%a" $TESTDIR/clone/file)
75	ctime=$(stat -f "%c" $TESTDIR/clone/file)
76	mtime=$(stat -f "%m" $TESTDIR/clone/file)
77else
78	atime=$(ls -E% all $TESTDIR/clone/file | awk '/atime/ {print $4}')
79	ctime=$(ls -E% all $TESTDIR/clone/file | awk '/ctime/ {print $4}')
80	mtime=$(ls -E% all $TESTDIR/clone/file | awk '/mtime/ {print $4}')
81fi
82
83[[ $o_atime = $atime ]] || log_fail "atime changed: $o_atime $atime"
84[[ $o_ctime = $ctime ]] && log_fail "ctime unchanged: $o_ctime $ctime"
85[[ $o_mtime = $mtime ]] && log_fail "mtime unchanged: $o_mtime $mtime"
86
87log_must verify_nopwrite $origin $origin@a $origin/clone
88
89log_pass "nopwrite updates file metadata correctly"
90