Commit a3f5f075 authored by Anton Vorontsov's avatar Anton Vorontsov Committed by Greg Kroah-Hartman
Browse files

pstore/platform: Make automatic updates interval configurable 



There is no behavioural change, the default value is still 60 seconds.

Signed-off-by: default avatarAnton Vorontsov <anton.vorontsov@linaro.org>
Acked-by: default avatarKees Cook <keescook@chromium.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent b8587daa

fs/pstore/platform.c

+11 −4
Original line number Diff line number Diff line
@@ -31,6 +31,7 @@ 
#include <linux/slab.h>

#include <linux/uaccess.h>

#include <linux/hardirq.h>

#include <linux/jiffies.h>

#include <linux/workqueue.h>



#include "internal.h"
@@ -40,7 +41,10 @@ 
 * whether the system is actually still running well enough

 * to let someone see the entry

 */

#define	PSTORE_INTERVAL	(60 * HZ)

static int pstore_update_ms = 60000;

module_param_named(update_ms, pstore_update_ms, int, 0600);

MODULE_PARM_DESC(update_ms, "milliseconds before pstore updates its content "

		 "(default is 60000; -1 means runtime updates are disabled)");



static int pstore_new_entry;
@@ -231,8 +235,11 @@ int pstore_register(struct pstore_info *psi) 
	kmsg_dump_register(&pstore_dumper);

	pstore_register_console();



	pstore_timer.expires = jiffies + PSTORE_INTERVAL;

	if (pstore_update_ms >= 0) {

		pstore_timer.expires = jiffies +

			msecs_to_jiffies(pstore_update_ms);

		add_timer(&pstore_timer);

	}



	return 0;

}
@@ -291,7 +298,7 @@ static void pstore_timefunc(unsigned long dummy) 
		schedule_work(&pstore_work);

	}



	mod_timer(&pstore_timer, jiffies + PSTORE_INTERVAL);

	mod_timer(&pstore_timer, jiffies + msecs_to_jiffies(pstore_update_ms));

}



module_param(backend, charp, 0444);