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 https://opensource.org/licenses/CDDL-1.0. 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# Copyright (c) 2021 by The FreeBSD Foundation. 26# 27 28. $STF_SUITE/include/libtest.shlib 29 30# 31# DESCRIPTION: 32# Test FALLOC_FL_ZERO_RANGE functionality 33# 34# STRATEGY: 35# 1. Create a dense file 36# 2. Zero various ranges in the file and verify the result. 37# 38 39verify_runnable "global" 40 41if is_freebsd; then 42 log_unsupported "FreeBSD does not implement an analogue to ZERO_RANGE." 43fi 44 45FILE=$TESTDIR/$TESTFILE0 46BLKSZ=$(get_prop recordsize $TESTPOOL) 47 48function cleanup 49{ 50 [[ -e $TESTDIR ]] && log_must rm -f $FILE 51} 52 53# Helpfully, this function expects kilobytes, and check_apparent_size expects bytes. 54function check_reported_size 55{ 56 typeset expected_size=$1 57 58 if ! [ -e "${FILE}" ]; then 59 log_fail "$FILE does not exist" 60 fi 61 62 reported_size=$(du "${FILE}" | awk '{print $1}') 63 if [ "$reported_size" != "$expected_size" ]; then 64 log_fail "Incorrect reported size: $reported_size != $expected_size" 65 fi 66} 67 68function check_apparent_size 69{ 70 typeset expected_size=$1 71 72 apparent_size=$(stat_size "${FILE}") 73 if [ "$apparent_size" != "$expected_size" ]; then 74 log_fail "Incorrect apparent size: $apparent_size != $expected_size" 75 fi 76} 77 78log_assert "Ensure ranges can be zeroed in files" 79 80log_onexit cleanup 81 82# Create a dense file and check it is the correct size. 83log_must file_write -o create -f $FILE -b $BLKSZ -c 8 84sync_pool $TESTPOOL 85log_must check_reported_size 1027 86 87# Zero a range covering the first full block. 88log_must zero_range 0 $BLKSZ $FILE 89sync_pool $TESTPOOL 90log_must check_reported_size 899 91 92# Partially zero a range in the second block. 93log_must zero_range $BLKSZ $((BLKSZ / 2)) $FILE 94sync_pool $TESTPOOL 95log_must check_reported_size 899 96 97# Zero range which overlaps the third and fourth block. 98log_must zero_range $(((BLKSZ * 2) + (BLKSZ / 2))) $((BLKSZ)) $FILE 99sync_pool $TESTPOOL 100log_must check_reported_size 899 101 102# Zero range from the fifth block past the end of file, with --keep-size. 103# The apparent file size must not change, since we did specify --keep-size. 104apparent_size=$(stat_size $FILE) 105log_must fallocate --keep-size --zero-range --offset $((BLKSZ * 4)) --length $((BLKSZ * 10)) "$FILE" 106sync_pool $TESTPOOL 107log_must check_reported_size 387 108log_must check_apparent_size $apparent_size 109 110# Zero range from the fifth block past the end of file. The apparent 111# file size should change since --keep-size is not implied, unlike 112# with PUNCH_HOLE. 113apparent_size=$(stat_size $FILE) 114log_must zero_range $((BLKSZ * 4)) $((BLKSZ * 10)) $FILE 115sync_pool $TESTPOOL 116log_must check_reported_size 387 117log_must check_apparent_size $((BLKSZ * 14)) 118 119log_pass "Ensure ranges can be zeroed in files" 120