functional/link_count/link_count_001.ksh

f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy#!/bin/ksh -p
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy#
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# CDDL HEADER START
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy#
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# The contents of this file are subject to the terms of the
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# Common Development and Distribution License (the "License").
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# You may not use this file except in compliance with the License.
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy#
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# or http://www.opensolaris.org/os/licensing.
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# See the License for the specific language governing permissions
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# and limitations under the License.
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy#
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# When distributing Covered Code, include this CDDL HEADER in each
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# If applicable, add the following below this CDDL HEADER, with the
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# fields enclosed by brackets "[]" replaced with your own identifying
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# information: Portions Copyright [yyyy] [name of copyright owner]
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy#
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# CDDL HEADER END
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy#
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy#
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# Use is subject to license terms.
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy#
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy#
1d32ba663e202c24a5a1f2e5aef83fffb447cb7fJohn Wren Kennedy# Copyright (c) 2013, 2016 by Delphix. All rights reserved.
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy#
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy. $STF_SUITE/include/libtest.shlib
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy#
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# DESCRIPTION:
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# Verify file link count is zero on zfs
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy#
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# STRATEGY:
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# 1. Make sure this test executes on multi-processes system
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# 2. Make zero size files and remove them in the background
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# 3. Call the binary
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# 4. Make sure the files can be removed successfully
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy#
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedyverify_runnable "both"
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedylog_assert "Verify file link count is zero on zfs"
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedyexport ITERS=10
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedyexport NUMFILES=10000
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy# Detect and make sure this test must be executed on a multi-process system
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedyis_mp || log_fail "This test requires a multi-processor system."
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy
1d32ba663e202c24a5a1f2e5aef83fffb447cb7fJohn Wren Kennedylog_must mkdir -p ${TESTDIR}/tmp
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedytypeset -i i=0
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedywhile [ $i -lt $NUMFILES ]; do
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy        (( i = i + 1 ))
1d32ba663e202c24a5a1f2e5aef83fffb447cb7fJohn Wren Kennedy        touch ${TESTDIR}/tmp/x$i > /dev/null 2>&1
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedydone
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedysleep 3
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy
1d32ba663e202c24a5a1f2e5aef83fffb447cb7fJohn Wren Kennedyrm -f ${TESTDIR}/tmp/x* >/dev/null 2>&1
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy
1d32ba663e202c24a5a1f2e5aef83fffb447cb7fJohn Wren Kennedyrm_lnkcnt_zero_file ${TESTDIR}/tmp/test$$ > /dev/null 2>&1 &
f38cb554a534c6df738be3f4d23327e69888e634John Wren KennedyPID=$!
1d32ba663e202c24a5a1f2e5aef83fffb447cb7fJohn Wren Kennedylog_note "rm_lnkcnt_zero_file ${TESTDIR}/tmp/test$$ pid: $PID"
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedyi=0
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedywhile [ $i -lt $ITERS ]; do
1d32ba663e202c24a5a1f2e5aef83fffb447cb7fJohn Wren Kennedy    if ! pgrep rm_lnkcnt_zero_file > /dev/null ; then
1d32ba663e202c24a5a1f2e5aef83fffb447cb7fJohn Wren Kennedy        log_note "rm_lnkcnt_zero_file completes"
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy        break
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy    fi
1d32ba663e202c24a5a1f2e5aef83fffb447cb7fJohn Wren Kennedy    log_must sleep 10
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy    (( i = i + 1 ))
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedydone
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy
1d32ba663e202c24a5a1f2e5aef83fffb447cb7fJohn Wren Kennedyif pgrep rm_lnkcnt_zero_file > /dev/null; then
1d32ba663e202c24a5a1f2e5aef83fffb447cb7fJohn Wren Kennedy    log_must kill -TERM $PID
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy    log_fail "file link count is zero"
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedyfi
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy
1d32ba663e202c24a5a1f2e5aef83fffb447cb7fJohn Wren Kennedylog_must kill -TERM $PID
1d32ba663e202c24a5a1f2e5aef83fffb447cb7fJohn Wren Kennedylog_must rm -f ${TESTDIR}/tmp/test$$*
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedy
f38cb554a534c6df738be3f4d23327e69888e634John Wren Kennedylog_pass "Verify file link count is zero on zfs"