1#!/bin/ksh -p 2# 3# CDDL HEADER START 4# 5# The contents of this file are subject to the terms of the 6# Common Development and Distribution License (the "License"). 7# You may not use this file except in compliance with the License. 8# 9# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10# or http://www.opensolaris.org/os/licensing. 11# See the License for the specific language governing permissions 12# and limitations under the License. 13# 14# When distributing Covered Code, include this CDDL HEADER in each 15# file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16# If applicable, add the following below this CDDL HEADER, with the 17# fields enclosed by brackets "[]" replaced with your own identifying 18# information: Portions Copyright [yyyy] [name of copyright owner] 19# 20# CDDL HEADER END 21# 22 23# 24# Copyright (c) 2013 by Delphix. All rights reserved. 25# 26 27. $STF_SUITE/include/libtest.shlib 28 29# 30# DESCRIPTION: 31# Exercise the traversal suspend/resume code in async_destroy by 32# destroying a file system that has more blocks than we can free 33# in a single txg. 34# 35# STRATEGY: 36# 1. Create a file system 37# 2. Set recordsize to 512 to create the maximum number of blocks 38# 3. Set compression to off to force zero-ed blocks to be written 39# 4. dd a lot of data from /dev/zero to the file system 40# 5. Destroy the file system 41# 6. Wait for the freeing property to go to 0 42# 7. Use zdb to check for leaked blocks 43# 44 45TEST_FS=$TESTPOOL/async_destroy 46 47verify_runnable "both" 48 49function cleanup 50{ 51 datasetexists $TEST_FS && log_must $ZFS destroy $TEST_FS 52} 53 54log_onexit cleanup 55log_assert "async_destroy can suspend and resume traversal" 56 57log_must $ZFS create -o recordsize=512 -o compression=off $TEST_FS 58 59# 60# Fill with 2G 61# 62log_must $DD bs=1024k count=2048 if=/dev/zero of=/$TEST_FS/file 63 64log_must $ZFS destroy $TEST_FS 65 66count=0 67while [[ "0" != "$($ZPOOL list -Ho freeing $TESTPOOL)" ]]; do 68 count=$((count + 1)) 69 sleep 1 70done 71 72# 73# We assert that the data took a few seconds to free to make sure that 74# we actually exercised the suspend/resume code. The destroy should 75# actually take much longer than this, so false positives are not likely. 76# 77log_must test $count -gt 5 78 79# 80# Check for leaked blocks. 81# 82log_must $ZDB -b $TESTPOOL 83 84log_pass "async_destroy can suspend and resume traversal" 85