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/*
* linux/fs/umsdos/check.c
*
*
*/
#include <linux/signal.h>
#include <linux/sched.h>
#include <linux/head.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/types.h>
#include <linux/ptrace.h>
#include <linux/mman.h>
#include <linux/mm.h>
#include <asm/system.h>
static int check_one_table(struct pde * page_dir)
{
if (pgd_none(*page_dir))
return 0;
if (pgd_bad(*page_dir))
return 1;
return 0;
}
/*
* This function checks all page tables of "current"
*/
void check_page_tables(void)
{
struct pgd * pg_dir;
static int err = 0;
int stack_level = (long)(&pg_dir)-current->kernel_stack_page;
if (stack_level < 1500) printk ("** %d ** ",stack_level);
pg_dir = PAGE_DIR_OFFSET(current, 0);
if (err == 0) {
int i;
for (i = 0 ; i < PTRS_PER_PAGE ; i++,page_dir++){
int notok = check_one_table(page_dir);
if (notok){
err++;
printk ("|%d:%08lx| ",i, page_dir->pgd);
}
}
if (err) printk ("\nErreur MM %d\n",err);
}
}
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