: convert ipmi_watchdog to also use module option nowayout as it's done in other watchdog drivers

@@ -129,6 +129,12 @@
 #define        WDIOC_GET_PRETIMEOUT     _IOW(WATCHDOG_IOCTL_BASE, 22, int)
 #endif
 
+#ifdef CONFIG_WATCHDOG_NOWAYOUT
+static int nowayout = 1;
+#else
+static int nowayout = 0;
+#endif
+
 static ipmi_user_t watchdog_user = NULL;
 
 /* Default the timeout to 10 seconds. */

@@ -175,6 +181,8 @@
 module_param(start_now, int, 0);
 MODULE_PARM_DESC(start_now, "Set to 1 to start the watchdog as"
                 "soon as the driver is loaded.");
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default=CONFIG_WATCHDOG_NOWAYOUT)");
 
 /* Default state of the timer. */
 static unsigned char ipmi_watchdog_state = WDOG_TIMEOUT_NONE;

@@ -704,10 +712,10 @@
 {
        if (iminor(ino)==WATCHDOG_MINOR)
        {
-#ifndef CONFIG_WATCHDOG_NOWAYOUT
-               ipmi_watchdog_state = WDOG_TIMEOUT_NONE;
-               ipmi_set_timeout(IPMI_SET_TIMEOUT_NO_HB);
-#endif
+               if (!nowayout) {
+                       ipmi_watchdog_state = WDOG_TIMEOUT_NONE;
+                       ipmi_set_timeout(IPMI_SET_TIMEOUT_NO_HB);
+               }
                ipmi_wdog_open = 0;
        }
 

Index: linux-ipmi/Documentation/IPMI.txt
===================================================================
@@ -442,6 +442,7 @@
 
   modprobe ipmi_watchdog timeout=<t> pretimeout=<t> action=<action type>
       preaction=<preaction type> preop=<preop type> start_now=x
+      nowayout=x
 
 The timeout is the number of seconds to the action, and the pretimeout
 is the amount of seconds before the reset that the pre-timeout panic will

@@ -472,6 +473,10 @@
 If start_now is set to 1, the watchdog timer will start running as
 soon as the driver is loaded.
 
+If nowayout is set to 1, the watchdog timer will not stop when the
+watchdog device is closed.  The default value of nowayout is true
+if the CONFIG_WATCHDOG_NOWAYOUT option is enabled, or false if not.
+
 When compiled into the kernel, the kernel command line is available
 for configuring the watchdog:
 

@@ -480,6 +485,7 @@
 	ipmi_watchdog.preaction=<preaction type>
 	ipmi_watchdog.preop=<preop type>
 	ipmi_watchdog.start_now=x
+	ipmi_watchdog.nowayout=x
 
 The options are the same as the module parameter options.