#include <linux/module.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/fs.h>
#define CUTBAG_DIR "CU_T-bagwell"
#define MAX_STRING_TEST 20
static struct kmem_cache *T_bagwell_slab_test;
struct test{
int count;
unsigned char test_string[MAX_STRING_TEST];
};
struct test *test_for_cu;
static int __init test_init(void)
{
T_bagwell_slab_test = kmem_cache_create(CUTBAG_DIR,
sizeof(struct test),
0, SLAB_RECLAIM_ACCOUNT, NULL
);
if(!T_bagwell_slab_test){
printk(KERN_WARNING "kmem_cache_create faild\n");
return -1;
}
test_for_cu = kmem_cache_alloc(T_bagwell_slab_test, GFP_KERNEL);
if(!test_for_cu){
printk(KERN_WARNING "kmem_cache_alloc faild\n");
kmem_cache_destroy(T_bagwell_slab_test);
return -1;
}
memset(test_for_cu, 0 ,sizeof(struct test));
test_for_cu->count = 100;
memcpy(test_for_cu->test_string, "test_for_chinaunix", MAX_STRING_TEST);
return 0;
}
static void __exit test_cleanup(void)
{
printk(KERN_WARNING "%s %d\n", test_for_cu->test_string, test_for_cu->count);
kmem_cache_free(T_bagwell_slab_test, test_for_cu);
kmem_cache_destroy(T_bagwell_slab_test);
}
module_init(test_init);
module_exit(test_cleanup);
MODULE_LICENSE("GPL");
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