[PATCH 3/4 for opensm] /etc/init.d/opensmd: Improve systemd integration

[PATCH 3/4 for opensm] /etc/init.d/opensmd: Improve systemd integration

[Bart Van Assche]

On recent SLES and openSUSE systems it is necessary to read the
file /lib/lsb/init-functions instead of /etc/rc.status for proper
integration with systemd. Certain implementations of killproc
need a pidfile so make sure that one gets created. Also, correct
the opensm service dependency list.

Signed-off-by: Bart Van Assche <bvanassche-HInyCGIudOg@public.gmane.org>
Cc: Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
---
 configure.in                  |    6 ++++++
 scripts/opensm.init.in        |   26 ++++++++++++++++++--------
 scripts/redhat-opensm.init.in |    2 ++
 3 files changed, 26 insertions(+), 8 deletions(-)

diff --git a/configure.in b/configure.in
index f660a5b..4515ae2 100644
--- a/configure.in
+++ b/configure.in
@@ -11,6 +11,12 @@ AM_INIT_AUTOMAKE
 AC_SUBST(RELEASE, ${RELEASE:-unknown})
 AC_SUBST(TARBALL, ${TARBALL:-${PACKAGE}-${VERSION}.tar.gz})
 
+default_rdma_service=openibd
+AC_ARG_WITH([rdma_service],
+    AC_HELP_STRING([--with-rdma-service=name],
+                   [name of the RDMA service: "rdma" when using /etc/init.d/rdma to start RDMA services; "openibd" when using /etc/init.d/openibd to start RDMA services [default=${default_rdma_service}]]))
+AC_SUBST(RDMA_SERVICE, ${with_rdma_service:-${default_rdma_service}})
+
 if { rpm -q sles-release || rpm -q openSUSE-release; } >/dev/null 2>&1; then
    default_start="2 3 5"
    default_stop="0 1 4 6"
diff --git a/scripts/opensm.init.in b/scripts/opensm.init.in
index 007dae4..ddd1d6b 100644
--- a/scripts/opensm.init.in
+++ b/scripts/opensm.init.in
@@ -7,8 +7,8 @@
 #
 ### BEGIN INIT INFO
 # Provides: opensm
-# Required-Start: $syslog
-# Required-Stop:
+# Required-Start: $syslog @RDMA_SERVICE@
+# Required-Stop: $syslog @RDMA_SERVICE@
 # Default-Start: @DEFAULT_START@
 # Default-Stop: @DEFAULT_STOP@
 # Description:  Manage OpenSM
@@ -42,14 +42,22 @@
 
 prefix=@prefix@
 exec_prefix=@exec_prefix@
+pidfile=/var/run/opensm.pid
 
 # Source function library.
 if [[ -s /etc/init.d/functions ]]; then
+    # RHEL / CentOS / SL / Fedora.
     . /etc/init.d/functions
     rc_status() { :; }
     rc_exit() { exit $RETVAL; }
-fi
-if [[ -s /etc/rc.status ]]; then
+elif [[ -s /lib/lsb/init-functions ]]; then
+    # SLES / openSuSE / Debian.
+    . /lib/lsb/init-functions
+    rc_exit() { exit $RETVAL; }
+    success() { log_success_msg; }
+    failure() { log_failure_msg; }
+elif [[ -s /etc/rc.status ]]; then
+    # Older SuSE systems.
     . /etc/rc.status
     failure() { rc_status -v; }
     success() { rc_status -v; }
@@ -61,10 +69,13 @@ if [[ -s $CONFIG ]]; then
 fi
 
 start () {
+    if [ -e $pidfile ]; then
+	echo Already started
+	return 1
+    fi
     echo -n "Starting opensm: "
-    @sbindir@/opensm --daemon $OPTIONS > /dev/null
+    @sbindir@/opensm --daemon --pidfile $pidfile $OPTIONS > /dev/null
     if [[ $RETVAL -eq 0 ]]; then
-        touch /var/lock/subsys/opensm
         success
     else
         failure
@@ -76,7 +87,6 @@ stop () {
     echo -n "Shutting down opensm: "
     killproc opensm
     if [[ $RETVAL -eq 0 ]]; then
-        rm -f /var/lock/subsys/opensm
         success
     else
         failure
@@ -114,7 +124,7 @@ case "$1" in
 	restart
 	;;
     try-restart | condrestart)
-	[ -e /var/lock/subsys/opensm ] && restart
+	[ -e $pidfile ] && restart
 	;;
     resweep)
 	killall -HUP opensm
diff --git a/scripts/redhat-opensm.init.in b/scripts/redhat-opensm.init.in
index bea0f0d..415ab2f 100755
--- a/scripts/redhat-opensm.init.in
+++ b/scripts/redhat-opensm.init.in
@@ -7,6 +7,8 @@
 #
 ### BEGIN INIT INFO
 # Provides:       opensm
+# Required-Start: $syslog @RDMA_SERVICE@
+# Required-Stop: $syslog @RDMA_SERVICE@
 # Default-Start: @DEFAULT_START@
 # Default-Stop: @DEFAULT_STOP@
 # Description:  Manage OpenSM
-- 
1.7.10.4

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Re: [PATCH 3/4 for opensm] /etc/init.d/opensmd: Improve systemd integration

[Alex Netes]

Hi Bart,

On 16:44 Fri 21 Sep     , Bart Van Assche wrote:
> On recent SLES and openSUSE systems it is necessary to read the
> file /lib/lsb/init-functions instead of /etc/rc.status for proper
> integration with systemd. Certain implementations of killproc
> need a pidfile so make sure that one gets created. Also, correct
> the opensm service dependency list.
> 
> Signed-off-by: Bart Van Assche <bvanassche-HInyCGIudOg@public.gmane.org>
> Cc: Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
> ---
>  configure.in                  |    6 ++++++
>  scripts/opensm.init.in        |   26 ++++++++++++++++++--------
>  scripts/redhat-opensm.init.in |    2 ++
>  3 files changed, 26 insertions(+), 8 deletions(-)
> 
> diff --git a/configure.in b/configure.in
> index f660a5b..4515ae2 100644
> --- a/configure.in
> +++ b/configure.in
> @@ -11,6 +11,12 @@ AM_INIT_AUTOMAKE
>  AC_SUBST(RELEASE, ${RELEASE:-unknown})
>  AC_SUBST(TARBALL, ${TARBALL:-${PACKAGE}-${VERSION}.tar.gz})
>  
> +default_rdma_service=openibd
> +AC_ARG_WITH([rdma_service],
> +    AC_HELP_STRING([--with-rdma-service=name],
> +                   [name of the RDMA service: "rdma" when using /etc/init.d/rdma to start RDMA services; "openibd" when using /etc/init.d/openibd to start RDMA services [default=${default_rdma_service}]]))
> +AC_SUBST(RDMA_SERVICE, ${with_rdma_service:-${default_rdma_service}})
> +

There is also an option to run opensm with ibsim. In that case neither rdma
nor openibd should run.

>  if { rpm -q sles-release || rpm -q openSUSE-release; } >/dev/null 2>&1; then
>     default_start="2 3 5"
>     default_stop="0 1 4 6"
> diff --git a/scripts/opensm.init.in b/scripts/opensm.init.in
> index 007dae4..ddd1d6b 100644
> --- a/scripts/opensm.init.in
> +++ b/scripts/opensm.init.in
> @@ -7,8 +7,8 @@
>  #
>  ### BEGIN INIT INFO
>  # Provides: opensm
> -# Required-Start: $syslog
> -# Required-Stop:
> +# Required-Start: $syslog @RDMA_SERVICE@
> +# Required-Stop: $syslog @RDMA_SERVICE@
>  # Default-Start: @DEFAULT_START@
>  # Default-Stop: @DEFAULT_STOP@
>  # Description:  Manage OpenSM
> @@ -42,14 +42,22 @@
>  
>  prefix=@prefix@
>  exec_prefix=@exec_prefix@
> +pidfile=/var/run/opensm.pid
>  
>  # Source function library.
>  if [[ -s /etc/init.d/functions ]]; then
> +    # RHEL / CentOS / SL / Fedora.
>      . /etc/init.d/functions
>      rc_status() { :; }
>      rc_exit() { exit $RETVAL; }
> -fi
> -if [[ -s /etc/rc.status ]]; then
> +elif [[ -s /lib/lsb/init-functions ]]; then
> +    # SLES / openSuSE / Debian.
> +    . /lib/lsb/init-functions
> +    rc_exit() { exit $RETVAL; }
> +    success() { log_success_msg; }
> +    failure() { log_failure_msg; }
> +elif [[ -s /etc/rc.status ]]; then
> +    # Older SuSE systems.
>      . /etc/rc.status
>      failure() { rc_status -v; }
>      success() { rc_status -v; }
> @@ -61,10 +69,13 @@ if [[ -s $CONFIG ]]; then
>  fi
>  
>  start () {
> +    if [ -e $pidfile ]; then

On opensm segfault (happens one in a while :), pidfile won't be removed, so
you won't be able to start the opensm again. I guess that same thing can
happen on warm reboot.

> +	echo Already started
> +	return 1
> +    fi

-- Alex
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Re: [PATCH 3/4 for opensm] /etc/init.d/opensmd: Improve systemd integration

[Doug Ledford]

[-- Attachment #1: Type: text/plain, Size: 4356 bytes --]

On 10/24/2012 9:27 AM, Alex Netes wrote:
> Hi Bart,
> 
> On 16:44 Fri 21 Sep     , Bart Van Assche wrote:
>> On recent SLES and openSUSE systems it is necessary to read the
>> file /lib/lsb/init-functions instead of /etc/rc.status for proper
>> integration with systemd. Certain implementations of killproc
>> need a pidfile so make sure that one gets created. Also, correct
>> the opensm service dependency list.
>>
>> Signed-off-by: Bart Van Assche <bvanassche-HInyCGIudOg@public.gmane.org>
>> Cc: Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
>> ---
>>  configure.in                  |    6 ++++++
>>  scripts/opensm.init.in        |   26 ++++++++++++++++++--------
>>  scripts/redhat-opensm.init.in |    2 ++
>>  3 files changed, 26 insertions(+), 8 deletions(-)
>>
>> diff --git a/configure.in b/configure.in
>> index f660a5b..4515ae2 100644
>> --- a/configure.in
>> +++ b/configure.in
>> @@ -11,6 +11,12 @@ AM_INIT_AUTOMAKE
>>  AC_SUBST(RELEASE, ${RELEASE:-unknown})
>>  AC_SUBST(TARBALL, ${TARBALL:-${PACKAGE}-${VERSION}.tar.gz})
>>  
>> +default_rdma_service=openibd
>> +AC_ARG_WITH([rdma_service],
>> +    AC_HELP_STRING([--with-rdma-service=name],
>> +                   [name of the RDMA service: "rdma" when using /etc/init.d/rdma to start RDMA services; "openibd" when using /etc/init.d/openibd to start RDMA services [default=${default_rdma_service}]]))
>> +AC_SUBST(RDMA_SERVICE, ${with_rdma_service:-${default_rdma_service}})
>> +
> 
> There is also an option to run opensm with ibsim. In that case neither rdma
> nor openibd should run.

ibsim is unlikely to be used by end users or system administrators in a
normal startup environment.  I doubt it needs to be accounted for in the
init script.  Most users simply don't even know enough about ibsim to be
able to use it at all.

>>  if { rpm -q sles-release || rpm -q openSUSE-release; } >/dev/null 2>&1; then
>>     default_start="2 3 5"
>>     default_stop="0 1 4 6"
>> diff --git a/scripts/opensm.init.in b/scripts/opensm.init.in
>> index 007dae4..ddd1d6b 100644
>> --- a/scripts/opensm.init.in
>> +++ b/scripts/opensm.init.in
>> @@ -7,8 +7,8 @@
>>  #
>>  ### BEGIN INIT INFO
>>  # Provides: opensm
>> -# Required-Start: $syslog
>> -# Required-Stop:
>> +# Required-Start: $syslog @RDMA_SERVICE@
>> +# Required-Stop: $syslog @RDMA_SERVICE@
>>  # Default-Start: @DEFAULT_START@
>>  # Default-Stop: @DEFAULT_STOP@
>>  # Description:  Manage OpenSM
>> @@ -42,14 +42,22 @@
>>  
>>  prefix=@prefix@
>>  exec_prefix=@exec_prefix@
>> +pidfile=/var/run/opensm.pid
>>  
>>  # Source function library.
>>  if [[ -s /etc/init.d/functions ]]; then
>> +    # RHEL / CentOS / SL / Fedora.
>>      . /etc/init.d/functions
>>      rc_status() { :; }
>>      rc_exit() { exit $RETVAL; }
>> -fi
>> -if [[ -s /etc/rc.status ]]; then
>> +elif [[ -s /lib/lsb/init-functions ]]; then
>> +    # SLES / openSuSE / Debian.
>> +    . /lib/lsb/init-functions
>> +    rc_exit() { exit $RETVAL; }
>> +    success() { log_success_msg; }
>> +    failure() { log_failure_msg; }
>> +elif [[ -s /etc/rc.status ]]; then
>> +    # Older SuSE systems.
>>      . /etc/rc.status
>>      failure() { rc_status -v; }
>>      success() { rc_status -v; }
>> @@ -61,10 +69,13 @@ if [[ -s $CONFIG ]]; then
>>  fi
>>  
>>  start () {
>> +    if [ -e $pidfile ]; then
> 
> On opensm segfault (happens one in a while :), pidfile won't be removed, so
> you won't be able to start the opensm again. I guess that same thing can
> happen on warm reboot.

The stop action in the script should handle cleanup for you.  If it's
called, and a pid file exists, but the pid is not running, it should
remove the pid file and the subsystem lock file so that a clean start works.

>> +	echo Already started
>> +	return 1
>> +    fi
> 
> -- Alex
> --
> To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
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> 


-- 
Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
              GPG KeyID: 0E572FDD
	      http://people.redhat.com/dledford

Infiniband specific RPMs available at
	      http://people.redhat.com/dledford/Infiniband


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Re: [PATCH 3/4 for opensm] /etc/init.d/opensmd: Improve systemd integration

[Bart Van Assche]

On 10/24/12 16:33, Doug Ledford wrote:
> On 10/24/2012 9:27 AM, Alex Netes wrote:
>> On 16:44 Fri 21 Sep     , Bart Van Assche wrote:
>>>   start () {
>>> +    if [ -e $pidfile ]; then
>>
>> On opensm segfault (happens one in a while :), pidfile won't be removed, so
>> you won't be able to start the opensm again. I guess that same thing can
>> happen on warm reboot.
>
> The stop action in the script should handle cleanup for you.  If it's
> called, and a pid file exists, but the pid is not running, it should
> remove the pid file and the subsystem lock file so that a clean start works.

Hello Doug,

Do we really need the lock file ? On some Linux systems (Ubuntu) the 
/var/lock/subsys directory does not even exist.

Bart.

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Re: [PATCH 3/4 for opensm] /etc/init.d/opensmd: Improve systemd integration

[Doug Ledford]

[-- Attachment #1: Type: text/plain, Size: 1535 bytes --]

On 10/24/2012 10:45 AM, Bart Van Assche wrote:
> On 10/24/12 16:33, Doug Ledford wrote:
>> On 10/24/2012 9:27 AM, Alex Netes wrote:
>>> On 16:44 Fri 21 Sep     , Bart Van Assche wrote:
>>>>   start () {
>>>> +    if [ -e $pidfile ]; then
>>>
>>> On opensm segfault (happens one in a while :), pidfile won't be
>>> removed, so
>>> you won't be able to start the opensm again. I guess that same thing can
>>> happen on warm reboot.
>>
>> The stop action in the script should handle cleanup for you.  If it's
>> called, and a pid file exists, but the pid is not running, it should
>> remove the pid file and the subsystem lock file so that a clean start
>> works.
> 
> Hello Doug,
> 
> Do we really need the lock file ? On some Linux systems (Ubuntu) the
> /var/lock/subsys directory does not even exist.
> 
> Bart.
> 

It's an old holdover from LSB compliance.  *I* don't personally care one
way or another, but it's supposed to be there for ancient scripts that
look there to find out if a service is running.  Probably none of those
ancient scripts look for opensm as it wasn't around back when they were
written and the "new and improved" way of checking a service in LSB is
to run the init script with the status command.  But, that's why I have
it there.

-- 
Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
              GPG KeyID: 0E572FDD
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	      http://people.redhat.com/dledford/Infiniband


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Re: [PATCH 3/4 for opensm] /etc/init.d/opensmd: Improve systemd integration

[Bart Van Assche]

On 10/24/12 15:27, Alex Netes wrote:
> On 16:44 Fri 21 Sep     , Bart Van Assche wrote:
>> +default_rdma_service=openibd
>> +AC_ARG_WITH([rdma_service],
>> +    AC_HELP_STRING([--with-rdma-service=name],
>> +                   [name of the RDMA service: "rdma" when using /etc/init.d/rdma to start RDMA services; "openibd" when using /etc/init.d/openibd to start RDMA services [default=${default_rdma_service}]]))
>> +AC_SUBST(RDMA_SERVICE, ${with_rdma_service:-${default_rdma_service}})
>> +
> 
> There is also an option to run opensm with ibsim. In that case neither rdma
> nor openibd should run.

Does running opensm with ibsim require to preload libumad2sim ? If so, that's
something that's not supported by the current opensm init script, isn't it ?
If that is correct then it looks fine to me to make the dependence on the
openibd/rdma service explicit in the opensm startup script.

>>   start () {
>> +    if [ -e $pidfile ]; then
> 
> On opensm segfault (happens one in a while :), pidfile won't be removed, so
> you won't be able to start the opensm again. I guess that same thing can
> happen on warm reboot.
> 
>> +	echo Already started
>> +	return 1
>> +    fi

Good catch. I'll start testing the additional changes below:

diff --git a/scripts/opensm.init.in b/scripts/opensm.init.in
index ddd1d6b..c169974 100644
--- a/scripts/opensm.init.in
+++ b/scripts/opensm.init.in
@@ -68,12 +68,18 @@ if [[ -s $CONFIG ]]; then
     . $CONFIG
 fi
 
+running () {
+    test -e $pidfile &&
+        test "$(readlink "/proc/$(cat $pidfile)/exe")" = "@sbindir@/opensm"
+}
+
 start () {
-    if [ -e $pidfile ]; then
+    if running; then
 	echo Already started
 	return 1
     fi
     echo -n "Starting opensm: "
+    rm -f $pidfile
     @sbindir@/opensm --daemon --pidfile $pidfile $OPTIONS > /dev/null
     if [[ $RETVAL -eq 0 ]]; then
         success
@@ -124,7 +130,7 @@ case "$1" in
 	restart
 	;;
     try-restart | condrestart)
-	[ -e $pidfile ] && restart
+	running && restart
 	;;
     resweep)
 	killall -HUP opensm
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Re: [PATCH 3/4 for opensm] /etc/init.d/opensmd: Improve systemd integration

[Alex Netes]

Hi Bart,

On 16:40 Wed 24 Oct     , Bart Van Assche wrote:
> On 10/24/12 15:27, Alex Netes wrote:
> > On 16:44 Fri 21 Sep     , Bart Van Assche wrote:
> >> +default_rdma_service=openibd
> >> +AC_ARG_WITH([rdma_service],
> >> +    AC_HELP_STRING([--with-rdma-service=name],
> >> +                   [name of the RDMA service: "rdma" when using /etc/init.d/rdma to start RDMA services; "openibd" when using /etc/init.d/openibd to start RDMA services [default=${default_rdma_service}]]))
> >> +AC_SUBST(RDMA_SERVICE, ${with_rdma_service:-${default_rdma_service}})
> >> +
> > 
> > There is also an option to run opensm with ibsim. In that case neither rdma
> > nor openibd should run.
> 
> Does running opensm with ibsim require to preload libumad2sim ? If so, that's
> something that's not supported by the current opensm init script, isn't it ?
> If that is correct then it looks fine to me to make the dependence on the
> openibd/rdma service explicit in the opensm startup script.

Theoretically, a user can export LD_PRELOAD=libumad2sim.so prior to executing
the script. But I agree with you that it can be out of the scope of opensmd
script.

> 
> >>   start () {
> >> +    if [ -e $pidfile ]; then
> > 
> > On opensm segfault (happens one in a while :), pidfile won't be removed, so
> > you won't be able to start the opensm again. I guess that same thing can
> > happen on warm reboot.
> > 
> >> +	echo Already started
> >> +	return 1
> >> +    fi
> 
> Good catch. I'll start testing the additional changes below:

Sounds as a good direction.

> 
> diff --git a/scripts/opensm.init.in b/scripts/opensm.init.in
> index ddd1d6b..c169974 100644
> --- a/scripts/opensm.init.in
> +++ b/scripts/opensm.init.in
> @@ -68,12 +68,18 @@ if [[ -s $CONFIG ]]; then
>      . $CONFIG
>  fi
>  
> +running () {
> +    test -e $pidfile &&
> +        test "$(readlink "/proc/$(cat $pidfile)/exe")" = "@sbindir@/opensm"
> +}
> +
>  start () {
> -    if [ -e $pidfile ]; then
> +    if running; then
>  	echo Already started
>  	return 1
>      fi
>      echo -n "Starting opensm: "
> +    rm -f $pidfile
>      @sbindir@/opensm --daemon --pidfile $pidfile $OPTIONS > /dev/null
>      if [[ $RETVAL -eq 0 ]]; then
>          success
> @@ -124,7 +130,7 @@ case "$1" in
>  	restart
>  	;;
>      try-restart | condrestart)
> -	[ -e $pidfile ] && restart
> +	running && restart
>  	;;
>      resweep)
>  	killall -HUP opensm
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[PATCH 3/4 v2 for opensm] /etc/init.d/opensmd: Improve systemd integration

[Bart Van Assche]

On recent SLES and openSUSE systems it is necessary to read the
file /lib/lsb/init-functions instead of /etc/rc.status for proper
integration with systemd. Certain implementations of killproc
need a pidfile so make sure that one gets created. Also, correct
the opensm service dependency list.

Cc: Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Signed-off-by: Bart Van Assche <bvanassche-HInyCGIudOg@public.gmane.org>
---
v2: replaced "[ -e $pidfile ]" test in start() by "[ -e $pidfile ] && [ "$(readlink "/proc/$(<$pidfile)/exe")" = "@sbindir@/opensm" ]"

 configure.in                  |    6 ++++++
 scripts/opensm.init.in        |   31 +++++++++++++++++++++++--------
 scripts/redhat-opensm.init.in |    2 ++
 3 files changed, 31 insertions(+), 8 deletions(-)

diff --git a/configure.in b/configure.in
index f660a5b..4515ae2 100644
--- a/configure.in
+++ b/configure.in
@@ -11,6 +11,12 @@ AM_INIT_AUTOMAKE
 AC_SUBST(RELEASE, ${RELEASE:-unknown})
 AC_SUBST(TARBALL, ${TARBALL:-${PACKAGE}-${VERSION}.tar.gz})
 
+default_rdma_service=openibd
+AC_ARG_WITH([rdma_service],
+    AC_HELP_STRING([--with-rdma-service=name],
+                   [name of the RDMA service: "rdma" when using /etc/init.d/rdma to start RDMA services; "openibd" when using /etc/init.d/openibd to start RDMA services [default=${default_rdma_service}]]))
+AC_SUBST(RDMA_SERVICE, ${with_rdma_service:-${default_rdma_service}})
+
 if { rpm -q sles-release || rpm -q openSUSE-release; } >/dev/null 2>&1; then
    default_start="2 3 5"
    default_stop="0 1 4 6"
diff --git a/scripts/opensm.init.in b/scripts/opensm.init.in
index 007dae4..227c38c 100644
--- a/scripts/opensm.init.in
+++ b/scripts/opensm.init.in
@@ -7,8 +7,8 @@
 #
 ### BEGIN INIT INFO
 # Provides: opensm
-# Required-Start: $syslog
-# Required-Stop:
+# Required-Start: $syslog @RDMA_SERVICE@
+# Required-Stop: $syslog @RDMA_SERVICE@
 # Default-Start: @DEFAULT_START@
 # Default-Stop: @DEFAULT_STOP@
 # Description:  Manage OpenSM
@@ -42,14 +42,22 @@
 
 prefix=@prefix@
 exec_prefix=@exec_prefix@
+pidfile=/var/run/opensm.pid
 
 # Source function library.
 if [[ -s /etc/init.d/functions ]]; then
+    # RHEL / CentOS / SL / Fedora.
     . /etc/init.d/functions
     rc_status() { :; }
     rc_exit() { exit $RETVAL; }
-fi
-if [[ -s /etc/rc.status ]]; then
+elif [[ -s /lib/lsb/init-functions ]]; then
+    # SLES / openSuSE / Debian.
+    . /lib/lsb/init-functions
+    rc_exit() { exit $RETVAL; }
+    success() { log_success_msg; }
+    failure() { log_failure_msg; }
+elif [[ -s /etc/rc.status ]]; then
+    # Older SuSE systems.
     . /etc/rc.status
     failure() { rc_status -v; }
     success() { rc_status -v; }
@@ -60,11 +68,19 @@ if [[ -s $CONFIG ]]; then
     . $CONFIG
 fi
 
+running () {
+    [ -e $pidfile ] &&
+        [ "$(readlink "/proc/$(<$pidfile)/exe")" = "@sbindir@/opensm" ]
+}
+
 start () {
+    if running; then
+	echo Already started
+	return 1
+    fi
     echo -n "Starting opensm: "
-    @sbindir@/opensm --daemon $OPTIONS > /dev/null
+    @sbindir@/opensm --daemon --pidfile $pidfile $OPTIONS > /dev/null
     if [[ $RETVAL -eq 0 ]]; then
-        touch /var/lock/subsys/opensm
         success
     else
         failure
@@ -76,7 +92,6 @@ stop () {
     echo -n "Shutting down opensm: "
     killproc opensm
     if [[ $RETVAL -eq 0 ]]; then
-        rm -f /var/lock/subsys/opensm
         success
     else
         failure
@@ -114,7 +129,7 @@ case "$1" in
 	restart
 	;;
     try-restart | condrestart)
-	[ -e /var/lock/subsys/opensm ] && restart
+	[ -e $pidfile ] && restart
 	;;
     resweep)
 	killall -HUP opensm
diff --git a/scripts/redhat-opensm.init.in b/scripts/redhat-opensm.init.in
index bea0f0d..415ab2f 100755
--- a/scripts/redhat-opensm.init.in
+++ b/scripts/redhat-opensm.init.in
@@ -7,6 +7,8 @@
 #
 ### BEGIN INIT INFO
 # Provides:       opensm
+# Required-Start: $syslog @RDMA_SERVICE@
+# Required-Stop: $syslog @RDMA_SERVICE@
 # Default-Start: @DEFAULT_START@
 # Default-Stop: @DEFAULT_STOP@
 # Description:  Manage OpenSM
-- 
1.7.10.4

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