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) 2020 by Lawrence Livermore National Security, LLC. 25# 26 27. $STF_SUITE/include/libtest.shlib 28 29# 30# DESCRIPTION: 31# Test `fallocate --punch-hole` 32# 33# STRATEGY: 34# 1. Create a dense file 35# 2. Punch an assortment of holes in the file and verify the result. 36# 37 38verify_runnable "global" 39 40FILE=$TESTDIR/$TESTFILE0 41BLKSZ=$(get_prop recordsize $TESTPOOL) 42 43function cleanup 44{ 45 [[ -e $TESTDIR ]] && log_must rm -f $FILE 46} 47 48function check_disk_size 49{ 50 typeset expected_size=$1 51 52 disk_size=$(du $TESTDIR/file | awk '{print $1}') 53 if [ $disk_size -ne $expected_size ]; then 54 log_fail "Incorrect size: $disk_size != $expected_size" 55 fi 56} 57 58function check_apparent_size 59{ 60 typeset expected_size=$1 61 62 apparent_size=$(stat_size) 63 if [ $apparent_size -ne $expected_size ]; then 64 log_fail "Incorrect size: $apparent_size != $expected_size" 65 fi 66} 67 68log_assert "Ensure holes can be punched in files making them sparse" 69 70log_onexit cleanup 71 72# Create a dense file and check it is the correct size. 73log_must file_write -o create -f $FILE -b $BLKSZ -c 8 74log_must check_disk_size $((131072 * 8)) 75 76# Punch a hole for the first full block. 77log_must fallocate --punch-hole --offset 0 --length $BLKSZ $FILE 78log_must check_disk_size $((131072 * 7)) 79 80# Partially punch a hole in the second block. 81log_must fallocate --punch-hole --offset $BLKSZ --length $((BLKSZ / 2)) $FILE 82log_must check_disk_size $((131072 * 7)) 83 84# Punch a hole which overlaps the third and forth block. 85log_must fallocate --punch-hole --offset $(((BLKSZ * 2) + (BLKSZ / 2))) \ 86 --length $((BLKSZ)) $FILE 87log_must check_disk_size $((131072 * 7)) 88 89# Punch a hole from the fifth block past the end of file. The apparent 90# file size should not change since --keep-size is implied. 91apparent_size=$(stat_size $FILE) 92log_must fallocate --punch-hole --offset $((BLKSZ * 4)) \ 93 --length $((BLKSZ * 10)) $FILE 94log_must check_disk_size $((131072 * 4)) 95log_must check_apparent_size $apparent_size 96 97log_pass "Ensure holes can be punched in files making them sparse" 98