4 * Copyright (C) 1992 by Linus Torvalds
8 #include <linux/types.h>
9 #include <linux/errno.h>
10 #include <linux/time.h>
11 #include <linux/kernel.h>
12 #include <linux/poll.h>
15 #include <asm/uaccess.h>
20 extern wait_queue_head_t log_wait;
22 extern int do_syslog(int type, char __user *bug, int count);
24 static int kmsg_open(struct inode * inode, struct file * file)
26 return do_syslog(1,NULL,0);
29 static int kmsg_release(struct inode * inode, struct file * file)
31 (void) do_syslog(0,NULL,0);
35 static ssize_t kmsg_read(struct file *file, char __user *buf,
36 size_t count, loff_t *ppos)
38 if ((file->f_flags & O_NONBLOCK) && !do_syslog(9, NULL, 0))
40 return do_syslog(2, buf, count);
43 static unsigned int kmsg_poll(struct file *file, poll_table *wait)
45 poll_wait(file, &log_wait, wait);
46 if (do_syslog(9, NULL, 0))
47 return POLLIN | POLLRDNORM;
52 const struct file_operations proc_kmsg_operations = {
56 .release = kmsg_release,