3rd-party/linux-kernel-module-cheat
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rename kernel_module to kernel_modules, start README mass factorings

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Ciro Santilli
2018-09-08 07:14:31 +01:00
parent 0a2446edf7
commit a99e041c8a
101 changed files with 558 additions and 430 deletions
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53
packages/kernel_modules/kthreads.c Normal file
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/* https://github.com/cirosantilli/linux-kernel-module-cheat#kthreads */
#include <linux/delay.h> /* usleep_range */
#include <linux/kernel.h>
#include <linux/kthread.h>
#include <linux/module.h>
static struct task_struct *kthread1, *kthread2;
static int work_func1(void *data)
{
int i = 0;
while (!kthread_should_stop()) {
pr_info("1 %d\n", i);
usleep_range(1000000, 1000001);
i++;
if (i == 10)
i = 0;
}
return 0;
}
static int work_func2(void *data)
{
int i = 0;
while (!kthread_should_stop()) {
pr_info("2 %d\n", i);
usleep_range(1000000, 1000001);
i++;
if (i == 10)
i = 0;
}
return 0;
}
static int myinit(void)
{
kthread1 = kthread_create(work_func1, NULL, "mykthread1");
kthread2 = kthread_create(work_func2, NULL, "mykthread2");
wake_up_process(kthread1);
wake_up_process(kthread2);
return 0;
}
static void myexit(void)
{
kthread_stop(kthread1);
kthread_stop(kthread2);
}
module_init(myinit)
module_exit(myexit)
MODULE_LICENSE("GPL");