x86: corruption check: run the corruption checks from a work queue

[linux-2.6-omap-h63xx.git] / arch / x86 / kernel / check.c

diff --git a/arch/x86/kernel/check.c b/arch/x86/kernel/check.c
index 5056703e1b057c3e671731f52a8e724e805c9999..55eed1752b43d554a0ed6112d5c682312acbeecc 100644 (file)
--- a/arch/x86/kernel/check.c
+++ b/arch/x86/kernel/check.c
@@ -1,6 +1,7 @@
 #include <linux/module.h>
 #include <linux/sched.h>
-
+#include <linux/kthread.h>
+#include <linux/workqueue.h>
 #include <asm/e820.h>
 #include <asm/proto.h>
 
@@ -108,13 +109,14 @@ void __init setup_bios_corruption_check(void)
        update_e820();
 }
 
-static struct timer_list periodic_check_timer;
 
 void check_for_bios_corruption(void)
 {
        int i;
        int corruption = 0;
 
+       printk("dot\n");
+
        if (!memory_corruption_check)
                return;
 
@@ -135,24 +137,29 @@ void check_for_bios_corruption(void)
        WARN(corruption, KERN_ERR "Memory corruption detected in low memory\n");
 }
 
-static void periodic_check_for_corruption(unsigned long data)
+static void check_corruption(struct work_struct *dummy);
+static DECLARE_DELAYED_WORK(bios_check_work, check_corruption);
+
+static void check_corruption(struct work_struct *dummy)
 {
        check_for_bios_corruption();
-       mod_timer(&periodic_check_timer,
-               round_jiffies(jiffies + corruption_check_period*HZ));
+       schedule_delayed_work(&bios_check_work,
+               round_jiffies_relative(corruption_check_period*HZ)); 
 }
 
-void start_periodic_check_for_corruption(void)
+static int start_periodic_check_for_corruption(void)
 {
        if (!memory_corruption_check || corruption_check_period == 0)
-               return;
+               return 0;
 
        printk(KERN_INFO "Scanning for low memory corruption every %d seconds\n",
               corruption_check_period);
 
-       init_timer(&periodic_check_timer);
-       periodic_check_timer.function = &periodic_check_for_corruption;
-       periodic_check_for_corruption(0);
+       /* First time we run the checks right away */
+       schedule_delayed_work(&bios_check_work, 0);
+       return 0;
 }
+
+module_init(start_periodic_check_for_corruption);
 #endif