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#!/bin/sh
# Do not continue for non-modular kernel - Bug #168322
[ ! -f /proc/modules ] && exit 0
if [ -e /dev/.udev_populate ]; then
# Enable verbose while called from udev-addon-start
. /dev/.udev_populate
if [ -c "${CONSOLE}" ]; then
# redirect stdin/out/err
exec <${CONSOLE} >${CONSOLE} 2>/${CONSOLE}
fi
fi
. /etc/init.d/functions.sh
MODPROBE=/sbin/modprobe
# Create a lock file for the current module.
lock_modprobe() {
[ -e /dev/.udev/ ] || return 0
MODPROBE_LOCK="/dev/.udev/.lock-modprobe-${MODNAME}"
retry=20
while ! mkdir "$MODPROBE_LOCK" 2> /dev/null; do
if [ $retry -eq 0 ]; then
ewarn "Could lock modprobe ${MODNAME}!"
return 1
fi
sleep 1
retry=$(($retry - 1))
done
return 0
}
unlock_modprobe() {
[ "$MODPROBE_LOCK" ] || return 0
rmdir "$MODPROBE_LOCK" || true
}
MODLIST=$("${MODPROBE}" -q -i --show-depends "${@}" 2>/dev/null \
| sed -e "s#^insmod /lib.*/\(.*\)\.ko.*#\1#g" -e 's|-|_|g')
# exit if you have no modules to load
[ -z "${MODLIST}" ] && exit 0
for m in ${MODLIST}; do
MODNAME=$m
done
# check for blacklisting
if [ -f /etc/modprobe.conf ]; then
if grep -q '^blacklist.*[[:space:]]'"${MODNAME}"'\([[:space:]]\|$\)' /etc/modprobe.conf; then
# module blacklisted
exit 0
fi
fi
lock_modprobe
# check if loaded
if ! grep -q "^${MODNAME}[[:space:]]" /proc/modules; then
# now do real loading
einfo " udev loading module ${MODNAME}"
"${MODPROBE}" -q "${@}" >/dev/null 2>/dev/null
fi
unlock_modprobe
|
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