freebsd-dev/scripts/zfs.sh
Brian Behlendorf b9f6a49025 Update 'zfs.sh -u' to umount all zfs filesystems
Before it is safe to unload the zfs module stack all mounted
zfs filesystems must be unmounted.  If they are not unmounted,
there will be references held on the modules and the stack cannot
be removed.  To handle this have 'zfs.sh -u' which is used by all
of the test scripts umount all zfs filesystem before attempting
to unload the module stack.
2011-02-16 11:10:31 -08:00

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#!/bin/bash
#
# A simple script to simply the loading/unloading the ZFS module stack.
basedir="$(dirname $0)"
SCRIPT_COMMON=common.sh
if [ -f "${basedir}/${SCRIPT_COMMON}" ]; then
. "${basedir}/${SCRIPT_COMMON}"
else
echo "Missing helper script ${SCRIPT_COMMON}" && exit 1
fi
PROG=zfs.sh
UNLOAD=
usage() {
cat << EOF
USAGE:
$0 [hvud] [module-options]
DESCRIPTION:
Load/unload the ZFS module stack.
OPTIONS:
-h Show this message
-v Verbose
-u Unload modules
-d Save debug log on unload
MODULE-OPTIONS:
Must be of the from module="options", for example:
$0 zfs="zfs_prefetch_disable=1"
$0 zfs="zfs_prefetch_disable=1 zfs_mdcomp_disable=1"
$0 spl="spl_debug_mask=0"
EOF
}
while getopts 'hvud' OPTION; do
case $OPTION in
h)
usage
exit 1
;;
v)
VERBOSE=1
;;
u)
UNLOAD=1
;;
d)
DUMP_LOG=1
;;
?)
usage
exit
;;
esac
done
if [ $(id -u) != 0 ]; then
die "Must run as root"
fi
if [ ${UNLOAD} ]; then
umount -t zfs -a
unload_modules
else
check_modules || die "${ERROR}"
load_modules "$@"
wait_udev /dev/zfs 30
fi
exit 0