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From 4c83fd10ab2a43272eab59719486064085beb2df Mon Sep 17 00:00:00 2001
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From: Harald Hoyer <harald@redhat.com>
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Date: Fri, 15 Apr 2016 11:27:20 +0200
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Subject: [PATCH] watchdog/module-setup.sh: rewrite
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- use local variables with _
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- use associative array for the kernel modules
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- install emergency hook even in the systemd case
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- follow device path until /sys is reached
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- set kernel version for modprobe checking
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---
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modules.d/04watchdog/module-setup.sh | 92 +++++++++++++++-------------
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1 file changed, 51 insertions(+), 41 deletions(-)
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diff --git a/modules.d/04watchdog/module-setup.sh b/modules.d/04watchdog/module-setup.sh
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index 6b35f9f5..31102f4e 100755
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--- a/modules.d/04watchdog/module-setup.sh
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+++ b/modules.d/04watchdog/module-setup.sh
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@@ -13,54 +13,64 @@ depends() {
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install() {
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# Do not add watchdog hooks if systemd module is included
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# In that case, systemd will manage watchdog kick
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- if dracut_module_included "systemd"; then
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- return
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+ if ! dracut_module_included "systemd"; then
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+ inst_hook cmdline 00 "$moddir/watchdog.sh"
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+ inst_hook cmdline 50 "$moddir/watchdog.sh"
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+ inst_hook pre-trigger 00 "$moddir/watchdog.sh"
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+ inst_hook initqueue 00 "$moddir/watchdog.sh"
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+ inst_hook mount 00 "$moddir/watchdog.sh"
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+ inst_hook mount 50 "$moddir/watchdog.sh"
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+ inst_hook mount 99 "$moddir/watchdog.sh"
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+ inst_hook pre-pivot 00 "$moddir/watchdog.sh"
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+ inst_hook pre-pivot 99 "$moddir/watchdog.sh"
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+ inst_hook cleanup 00 "$moddir/watchdog.sh"
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+ inst_hook cleanup 99 "$moddir/watchdog.sh"
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fi
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- inst_hook cmdline 00 "$moddir/watchdog.sh"
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- inst_hook cmdline 50 "$moddir/watchdog.sh"
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- inst_hook pre-trigger 00 "$moddir/watchdog.sh"
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- inst_hook initqueue 00 "$moddir/watchdog.sh"
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- inst_hook mount 00 "$moddir/watchdog.sh"
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- inst_hook mount 50 "$moddir/watchdog.sh"
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- inst_hook mount 99 "$moddir/watchdog.sh"
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- inst_hook pre-pivot 00 "$moddir/watchdog.sh"
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- inst_hook pre-pivot 99 "$moddir/watchdog.sh"
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- inst_hook cleanup 00 "$moddir/watchdog.sh"
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- inst_hook cleanup 99 "$moddir/watchdog.sh"
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inst_hook emergency 02 "$moddir/watchdog-stop.sh"
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inst_multiple -o wdctl
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}
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installkernel() {
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+ local -A _drivers
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+ local _alldrivers _active _wdtdrv _wdtppath _dir
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[[ -d /sys/class/watchdog/ ]] || return
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- wdtcmdline=""
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- for dir in /sys/class/watchdog/*; do
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- [[ -d "$dir" ]] || continue
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- [[ -f "$dir/state" ]] || continue
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- active=$(< "$dir/state")
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- ! [[ $hostonly ]] || [[ "$active" = "active" ]] || continue
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- # device/modalias will return driver of this device
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- wdtdrv=$(< "$dir/device/modalias")
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- # There can be more than one module represented by same
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- # modalias. Currently load all of them.
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- # TODO: Need to find a way to avoid any unwanted module
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- # represented by modalias
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- wdtdrv=$(modprobe -R $wdtdrv)
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- instmods $wdtdrv
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- wdtcmdline="$wdtcmdline$(echo $wdtdrv | tr " " ","),"
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- # however in some cases, we also need to check that if there is
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- # a specific driver for the parent bus/device. In such cases
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- # we also need to enable driver for parent bus/device.
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- wdtppath=$(readlink -f "$dir/device/..")
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- while [ -f "$wdtppath/modalias" ]
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- do
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- wdtpdrv=$(< "$wdtppath/modalias")
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- wdtpdrv=$(modprobe -R $wdtpdrv)
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- instmods $wdtpdrv
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- wdtcmdline="$wdtcmdline$(echo $wdtpdrv | tr " " ","),"
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- wdtppath=$(readlink -f "$wdtppath/..")
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- done
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+ for _dir in /sys/class/watchdog/*; do
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+ [[ -d "$_dir" ]] || continue
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+ [[ -f "$_dir/state" ]] || continue
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+ _active=$(< "$_dir/state")
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+ ! [[ $hostonly ]] || [[ "$_active" = "active" ]] || continue
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+ # device/modalias will return driver of this device
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+ _wdtdrv=$(< "$_dir/device/modalias")
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+ # There can be more than one module represented by same
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+ # modalias. Currently load all of them.
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+ # TODO: Need to find a way to avoid any unwanted module
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+ # represented by modalias
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+ _wdtdrv=$(modprobe --set-version "$kernel" -R $_wdtdrv 2>/dev/null)
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+ if [[ $_wdtdrv ]]; then
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+ instmods $_wdtdrv
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+ for i in $_wdtdrv; do
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+ _drivers[$i]=1
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+ done
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+ fi
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+ # however in some cases, we also need to check that if there is
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+ # a specific driver for the parent bus/device. In such cases
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+ # we also need to enable driver for parent bus/device.
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+ _wdtppath=$(readlink -f "$_dir/device/..")
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+ while [[ -d "$_wdtppath" ]] && [[ "$_wdtppath" != "/sys" ]]; do
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+ _wdtppath=$(readlink -f "$_wdtppath/..")
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+ [[ -f "$_wdtppath/modalias" ]] || continue
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+
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+ _wdtdrv=$(< "$_wdtppath/modalias")
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+ _wdtdrv=$(modprobe --set-version "$kernel" -R $_wdtdrv 2>/dev/null)
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+ if [[ $_wdtdrv ]]; then
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+ instmods $_wdtdrv
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+ for i in $_wdtdrv; do
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+ _drivers[$i]=1
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+ done
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+ fi
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+ done
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done
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# ensure that watchdog module is loaded as early as possible
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- [[ $wdtcmdline = "" ]] || echo "rd.driver.pre=$wdtcmdline" > ${initdir}/etc/cmdline.d/00-watchdog.conf
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+ _alldrivers="${!_drivers[*]}"
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+ [[ $_alldrivers ]] && echo "rd.driver.pre=${_alldrivers// /,}" > ${initdir}/etc/cmdline.d/00-watchdog.conf
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}
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