tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1// SPDX-License-Identifier: GPL-2.0
2#include <linux/debugfs.h>
3#include <linux/seq_file.h>
4
5#include <asm/ptdump.h>
6
7static int ptdump_show(struct seq_file *m, void *v)
8{
9 struct ptdump_info *info = m->private;
10 ptdump_walk_pgd(m, info);
11 return 0;
12}
13
14static int ptdump_open(struct inode *inode, struct file *file)
15{
16 return single_open(file, ptdump_show, inode->i_private);
17}
18
19static const struct file_operations ptdump_fops = {
20 .open = ptdump_open,
21 .read = seq_read,
22 .llseek = seq_lseek,
23 .release = single_release,
24};
25
26int ptdump_debugfs_register(struct ptdump_info *info, const char *name)
27{
28 struct dentry *pe;
29 pe = debugfs_create_file(name, 0400, NULL, info, &ptdump_fops);
30 return pe ? 0 : -ENOMEM;
31
32}