Contributors: 15
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Linus Torvalds (pre-git) |
160 |
60.15% |
9 |
33.33% |
| Alexey Dobriyan |
32 |
12.03% |
1 |
3.70% |
| Andrew Morton |
22 |
8.27% |
1 |
3.70% |
| Kees Cook |
18 |
6.77% |
3 |
11.11% |
| Linus Torvalds |
9 |
3.38% |
3 |
11.11% |
| Art Haas |
8 |
3.01% |
1 |
3.70% |
| Frédéric Weisbecker |
5 |
1.88% |
1 |
3.70% |
| Dave Jones |
3 |
1.13% |
1 |
3.70% |
| Mika Kukkonen |
2 |
0.75% |
1 |
3.70% |
| Adrian Bunk |
2 |
0.75% |
1 |
3.70% |
| Andries E. Brouwer |
1 |
0.38% |
1 |
3.70% |
| Greg Kroah-Hartman |
1 |
0.38% |
1 |
3.70% |
| Arjan van de Ven |
1 |
0.38% |
1 |
3.70% |
| Al Viro |
1 |
0.38% |
1 |
3.70% |
| Paul Gortmaker |
1 |
0.38% |
1 |
3.70% |
| Total |
266 |
|
27 |
|
// SPDX-License-Identifier: GPL-2.0
/*
* linux/fs/proc/kmsg.c
*
* Copyright (C) 1992 by Linus Torvalds
*
*/
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/time.h>
#include <linux/kernel.h>
#include <linux/poll.h>
#include <linux/proc_fs.h>
#include <linux/fs.h>
#include <linux/syslog.h>
#include <linux/uaccess.h>
#include <asm/io.h>
extern wait_queue_head_t log_wait;
static int kmsg_open(struct inode * inode, struct file * file)
{
return do_syslog(SYSLOG_ACTION_OPEN, NULL, 0, SYSLOG_FROM_PROC);
}
static int kmsg_release(struct inode * inode, struct file * file)
{
(void) do_syslog(SYSLOG_ACTION_CLOSE, NULL, 0, SYSLOG_FROM_PROC);
return 0;
}
static ssize_t kmsg_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
{
if ((file->f_flags & O_NONBLOCK) &&
!do_syslog(SYSLOG_ACTION_SIZE_UNREAD, NULL, 0, SYSLOG_FROM_PROC))
return -EAGAIN;
return do_syslog(SYSLOG_ACTION_READ, buf, count, SYSLOG_FROM_PROC);
}
static __poll_t kmsg_poll(struct file *file, poll_table *wait)
{
poll_wait(file, &log_wait, wait);
if (do_syslog(SYSLOG_ACTION_SIZE_UNREAD, NULL, 0, SYSLOG_FROM_PROC))
return EPOLLIN | EPOLLRDNORM;
return 0;
}
static const struct file_operations proc_kmsg_operations = {
.read = kmsg_read,
.poll = kmsg_poll,
.open = kmsg_open,
.release = kmsg_release,
.llseek = generic_file_llseek,
};
static int __init proc_kmsg_init(void)
{
proc_create("kmsg", S_IRUSR, NULL, &proc_kmsg_operations);
return 0;
}
fs_initcall(proc_kmsg_init);