1 #include <linux/debugfs.h>
2 #include <linux/module.h>
3 #include <linux/seq_file.h>
4 #include <asm/pgtable.h>
6 static int ptdump_show(struct seq_file *m, void *v)
8 ptdump_walk_pgd_level(m, NULL);
12 static int ptdump_open(struct inode *inode, struct file *filp)
14 return single_open(filp, ptdump_show, NULL);
17 static const struct file_operations ptdump_fops = {
22 .release = single_release,
25 static struct dentry *pe;
27 static int __init pt_dump_debug_init(void)
29 pe = debugfs_create_file("kernel_page_tables", S_IRUSR, NULL, NULL,
37 static void __exit pt_dump_debug_exit(void)
39 debugfs_remove_recursive(pe);
42 module_init(pt_dump_debug_init);
43 module_exit(pt_dump_debug_exit);
44 MODULE_LICENSE("GPL");
45 MODULE_AUTHOR("Arjan van de Ven <arjan@linux.intel.com>");
46 MODULE_DESCRIPTION("Kernel debugging helper that dumps pagetables");