freebsd-dev/scripts/zfs.sh
Brian Behlendorf 2c4834f87a Wait up to timeout seconds for udev device
Occasional failures were observed in zconfig.sh because udev
could be delayed for a few seconds.  To handle this the wait_udev
function has been added to wait for timeout seconds for an
expected device before returning an error.  By default callers
currently use a 30 seconds timeout which should be much longer
than udev ever needs but not so long to worry the test suite
is hung.
2010-09-11 20:54:41 -07:00

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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 [ ${UNLOAD} ]; then
unload_modules
else
check_modules || die "${ERROR}"
load_modules "$@"
wait_udev /dev/zfs 30
fi
exit 0