Jiffies Test

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/jiffies.h>
#include <linux/timer.h>

unsigned long js, je, tet;

int jiffies_test_init_module(void){
    js = jiffies;
    printk("\n[Jiffies start Time : %lu]\nModule Started.\n", js);
    return 0;
}

void jiffies_test_cleanup_module(void) {
    je = jiffies;
    printk("\n[Jiffies End Time : %lu]\nModule Removed.\n", je);
    tet = je - js;
    printk("\nEnd Time [%lu] - Start Time [%lu]: \nTotlal elapsed Time [%lu]\n",js,je, tet);
}

module_init(netblock_init_module);
module_exit(netblock_cleanup_module);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("JIFFIES EXAMPLE");
MODULE_AUTHOR("shigh1005@gmail.com");


/**************************************************************
From include/linux/jiffies.h
...
/*
 * Convert various time units to each other:
 */
extern unsigned int jiffies_to_msecs(const unsigned long j);
extern unsigned int jiffies_to_usecs(const unsigned long j);
extern unsigned long msecs_to_jiffies(const unsigned int m);
extern unsigned long usecs_to_jiffies(const unsigned int u);
extern unsigned long timespec_to_jiffies(const struct timespec *value);
extern void jiffies_to_timespec(const unsigned long jiffies, struct timespec *value);
extern unsigned long timeval_to_jiffies(const struct timeval *value);
extern void jiffies_to_timeval(const unsigned long jiffies, struct timeval *value);
extern clock_t jiffies_to_clock_t(unsigned long x);
extern unsigned long clock_t_to_jiffies(unsigned long x);
extern u64 jiffies_64_to_clock_t(u64 x);
extern u64 nsec_to_clock_t(u64 x);
extern u64 nsecs_to_jiffies64(u64 n);
extern unsigned long nsecs_to_jiffies(u64 n);
...
*************************************************************/