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, 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 && 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 $origin 45dd if=/dev/urandom of=$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 $origin/clone 49 50o_atime=$(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 $4}') 53dd if=/$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