Contributors: 5
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Alexey Dobriyan |
255 |
95.15% |
3 |
33.33% |
| Logan Gunthorpe |
6 |
2.24% |
2 |
22.22% |
| Christoph Hellwig |
5 |
1.87% |
2 |
22.22% |
| Paul Gortmaker |
1 |
0.37% |
1 |
11.11% |
| Greg Kroah-Hartman |
1 |
0.37% |
1 |
11.11% |
| Total |
268 |
|
9 |
|
// SPDX-License-Identifier: GPL-2.0
#include <linux/fs.h>
#include <linux/init.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/blkdev.h>
#include "internal.h"
static int devinfo_show(struct seq_file *f, void *v)
{
int i = *(loff_t *) v;
if (i < CHRDEV_MAJOR_MAX) {
if (i == 0)
seq_puts(f, "Character devices:\n");
chrdev_show(f, i);
}
#ifdef CONFIG_BLOCK
else {
i -= CHRDEV_MAJOR_MAX;
if (i == 0)
seq_puts(f, "\nBlock devices:\n");
blkdev_show(f, i);
}
#endif
return 0;
}
static void *devinfo_start(struct seq_file *f, loff_t *pos)
{
if (*pos < (BLKDEV_MAJOR_MAX + CHRDEV_MAJOR_MAX))
return pos;
return NULL;
}
static void *devinfo_next(struct seq_file *f, void *v, loff_t *pos)
{
(*pos)++;
if (*pos >= (BLKDEV_MAJOR_MAX + CHRDEV_MAJOR_MAX))
return NULL;
return pos;
}
static void devinfo_stop(struct seq_file *f, void *v)
{
/* Nothing to do */
}
static const struct seq_operations devinfo_ops = {
.start = devinfo_start,
.next = devinfo_next,
.stop = devinfo_stop,
.show = devinfo_show
};
static int __init proc_devices_init(void)
{
struct proc_dir_entry *pde;
pde = proc_create_seq("devices", 0, NULL, &devinfo_ops);
pde_make_permanent(pde);
return 0;
}
fs_initcall(proc_devices_init);