| Laura Abbott | 4ddb9bf | 2016-10-27 09:27:31 -0700 | [diff] [blame] | 1 | #include <linux/debugfs.h> |
| 2 | #include <linux/seq_file.h> |
| 3 | |
| 4 | #include <asm/ptdump.h> |
| 5 | |
| 6 | static int ptdump_show(struct seq_file *m, void *v) |
| 7 | { |
| 8 | struct ptdump_info *info = m->private; |
| 9 | ptdump_walk_pgd(m, info); |
| 10 | return 0; |
| 11 | } |
| 12 | |
| 13 | static int ptdump_open(struct inode *inode, struct file *file) |
| 14 | { |
| 15 | return single_open(file, ptdump_show, inode->i_private); |
| 16 | } |
| 17 | |
| 18 | static const struct file_operations ptdump_fops = { |
| 19 | .open = ptdump_open, |
| 20 | .read = seq_read, |
| 21 | .llseek = seq_lseek, |
| 22 | .release = single_release, |
| 23 | }; |
| 24 | |
| 25 | int ptdump_debugfs_register(struct ptdump_info *info, const char *name) |
| 26 | { |
| 27 | struct dentry *pe; |
| 28 | pe = debugfs_create_file(name, 0400, NULL, info, &ptdump_fops); |
| 29 | return pe ? 0 : -ENOMEM; |
| 30 | |
| 31 | } |