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#!/bin/ksh -p
#
# CDDL HEADER START
#
# 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.
#
# CDDL HEADER END
#
#
# Copyright (c) 2019 by Tim Chase. All rights reserved.
# Copyright (c) 2019 Lawrence Livermore National Security, LLC.
# Copyright 2019 Joyent, Inc.
#
. $STF_SUITE/include/libtest.shlib
verify_runnable "global"
typeset -i max_discard=0
if is_linux; then
DISK1=${DISKS%% *}
if [[ -b $DEV_RDSKDIR/$DISK1 ]]; then
max_discard=$(lsblk -Dbn $DEV_RDSKDIR/$DISK1 | awk '{ print $4; exit }')
fi
else
for dsk in $DISKS; do
if has_unmap $DEV_RDSKDIR/${dsk}s0; then
max_discard=1
fi
done
fi
if test $max_discard -eq 0; then
log_unsupported "DISKS do not support discard (TRIM/UNMAP)"
fi
log_pass
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