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. $STF_SUITE/tests/functional/nopwrite/nopwrite.shlib 20 21# 22# Description: 23# Verify that nopwrite works regardless of recsize property setting. 24# 25# Strategy: 26# 1. Create an origin fs that's suitable to make nopwrite clones. 27# 2. For each possible recsize, create a clone that inherits the compress and 28# checksum, and verify overwriting the origin file consumes no new space. 29# 30 31verify_runnable "global" 32origin="$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 50for rs in 512 1024 2048 4096 8192 16384 32768 65536 131072 ; do 51 log_must $ZFS set recsize=$rs $origin/clone 52 $DD if=/$TESTDIR/file of=/$TESTDIR/clone/file bs=1024k count=$MEGS \ 53 conv=notrunc >/tmp/null 2>&1 || log_fail "dd failed." 54 log_must verify_nopwrite $origin $origin@a $origin/clone 55done 56 57log_pass "nopwrite updates file metadata correctly" 58