#include #include #include static int ptdump_show(struct seq_file *m, void *v) { struct ptdump_info *info = m->private; ptdump_walk_pgd(m, info); return 0; } static int ptdump_open(struct inode *inode, struct file *file) { return single_open(file, ptdump_show, inode->i_private); } static const struct file_operations ptdump_fops = { .open = ptdump_open, .read = seq_read, .llseek = seq_lseek, .release = single_release, }; int ptdump_debugfs_register(struct ptdump_info *info, const char *name) { struct dentry *pe; pe = debugfs_create_file(name, 0400, NULL, info, &ptdump_fops); return pe ? 0 : -ENOMEM; }