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#!/bin/ksh -p
#
# This file and its contents are supplied under the terms of the
# Common Development and Distribution License ("CDDL"), version 1.0.
# You may only use this file in accordance with the terms of version
# 1.0 of the CDDL.
#
# A full copy of the text of the CDDL should have accompanied this
# source. A copy of the CDDL is also available via the Internet at
# http://www.illumos.org/license/CDDL.
#
#
# Copyright (c) 2020 by Delphix. All rights reserved.
#
. $STF_SUITE/include/libtest.shlib
. $STF_SUITE/tests/functional/cli_root/zpool_wait/zpool_wait.kshlib
#
# DESCRIPTION:
# 'zpool wait' works when a trim operation is canceled.
#
# STRATEGY:
# 1. Create a pool.
# 2. Start trimming the vdev in the pool, setting the rate low enough that the
# operation won't complete before the test finishes.
# 3. Start 'zpool wait'.
# 4. Wait a few seconds and then check that the wait process is actually
# waiting.
# 5. Cancel the trim.
# 6. Check that the wait process returns reasonably promptly.
# 7. Repeat 3-7, except pause the trim instead of canceling it.
#
function cleanup
{
kill_if_running $pid
poolexists $TESTPOOL && destroy_pool $TESTPOOL
[[ -d "$TESTDIR" ]] && log_must rm -r "$TESTDIR"
}
function do_test
{
typeset stop_cmd=$1
log_must zpool trim -r 1M $TESTPOOL "$FILE_VDEV"
log_bkgrnd zpool wait -t trim $TESTPOOL
pid=$!
# Make sure that we are really waiting
log_must sleep 3
proc_must_exist $pid
# Stop trimming and make sure process returns
log_must eval "$stop_cmd"
bkgrnd_proc_succeeded $pid
}
if is_freebsd; then
log_unsupported "FreeBSD has no hole punching mechanism for the time being."
fi
typeset pid
typeset -r FILE_VDEV="$TESTDIR/file_vdev1"
log_onexit cleanup
log_must mkdir "$TESTDIR"
log_must truncate -s 10G "$FILE_VDEV"
log_must zpool create -f $TESTPOOL "$FILE_VDEV"
do_test "zpool trim -c $TESTPOOL $FILE_VDEV"
do_test "zpool trim -s $TESTPOOL $FILE_VDEV"
log_pass "'zpool wait' works when trim is stopped before completion."
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