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|
#!/bin/bash
#
# A simple script to simply the loading/unloading the ZFS module
# stack. It should probably be considered a first step towards
# a full ZFS init script when that is needed.
#
. ../.script-config
PROG="<define PROG>"
VERBOSE=
DUMP_LOG=
ERROR=
MODULES=()
die() {
echo -e "${PROG}: $1" >&2
exit 1
}
msg() {
if [ ${VERBOSE} ]; then
echo "$@"
fi
}
spl_dump_log() {
sysctl -w kernel.spl.debug.dump=1 &>/dev/null
local NAME=`dmesg | tail -n 1 | cut -f5 -d' '`
${SPLBUILD}/cmd/spl ${NAME} >${NAME}.log
echo
echo "Dumped debug log: ${NAME}.log"
tail -n1 ${NAME}.log
echo
return 0
}
check_modules() {
local LOADED_MODULES=()
local MISSING_MODULES=()
for MOD in ${MODULES[*]}; do
local NAME=`basename $MOD .ko`
if /sbin/lsmod | egrep -q "^${NAME}"; then
LOADED_MODULES=(${NAME} ${LOADED_MODULES[*]})
fi
if [ ! -f ${MOD} ]; then
MISSING_MODULES=("\t${MOD}\n" ${MISSING_MODULES[*]})
fi
done
if [ ${#LOADED_MODULES[*]} -gt 0 ]; then
ERROR="Unload these modules with '${PROG} -u':\n"
ERROR="${ERROR}${LOADED_MODULES[*]}"
return 1
fi
if [ ${#MISSING_MODULES[*]} -gt 0 ]; then
ERROR="The following modules can not be found,"
ERROR="${ERROR} ensure your source trees are built:\n"
ERROR="${ERROR}${MISSING_MODULES[*]}"
return 1
fi
return 0
}
load_module() {
local NAME=`basename $1 .ko`
if [ ${VERBOSE} ]; then
echo "Loading $NAME ($@)"
fi
/sbin/insmod $* || ERROR="Failed to load $1" return 1
return 0
}
load_modules() {
for MOD in ${MODULES[*]}; do
local NAME=`basename ${MOD} .ko`
local VALUE=
for OPT in "$@"; do
OPT_NAME=`echo ${OPT} | cut -f1 -d'='`
if [ ${NAME} = "${OPT_NAME}" ]; then
VALUE=`echo ${OPT} | cut -f2- -d'='`
fi
done
load_module ${MOD} ${VALUE} || return 1
done
if [ ${VERBOSE} ]; then
echo "Successfully loaded ZFS module stack"
fi
return 0
}
unload_module() {
local NAME=`basename $1 .ko`
if [ ${VERBOSE} ]; then
echo "Unloading $NAME ($@)"
fi
/sbin/rmmod $NAME || ERROR="Failed to unload $NAME" return 1
return 0
}
unload_modules() {
local MODULES_REVERSE=( $(echo ${MODULES[@]} |
awk '{for (i=NF;i>=1;i--) printf $i" "} END{print ""}') )
for MOD in ${MODULES_REVERSE[*]}; do
local NAME=`basename ${MOD} .ko`
if /sbin/lsmod | egrep -q "^${NAME}"; then
if [ "${DUMP_LOG}" -a ${NAME} = "spl" ]; then
spl_dump_log
fi
unload_module ${MOD} || return 1
fi
done
if [ ${VERBOSE} ]; then
echo "Successfully unloaded ZFS module stack"
fi
return 0
}
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