/*
       *  linux/fs/proc/kmsg.c
       *
       *  Copyright (C) 1992  by Linus Torvalds
       *
       */
      
      #include <linux/types.h>
      #include <linux/errno.h>
      #include <linux/sched.h>
      #include <linux/kernel.h>
      #include <linux/poll.h>
      
      #include <asm/uaccess.h>
      #include <asm/io.h>
      
      extern unsigned long log_size;
      extern wait_queue_head_t log_wait;
      
      extern int do_syslog(int type, char * bug, int count);
      
  22  static int kmsg_open(struct inode * inode, struct file * file)
      {
  24  	return do_syslog(1,NULL,0);
      }
      
  27  static int kmsg_release(struct inode * inode, struct file * file)
      {
      	(void) do_syslog(0,NULL,0);
  30  	return 0;
      }
      
  33  static ssize_t kmsg_read(struct file * file, char * buf,
      			 size_t count, loff_t *ppos)
      {
  36  	return do_syslog(2,buf,count);
      }
      
  39  static unsigned int kmsg_poll(struct file *file, poll_table * wait)
      {
      	poll_wait(file, &log_wait, wait);
  42  	if (log_size)
  43  		return POLLIN | POLLRDNORM;
  44  	return 0;
      }
      
      
      struct file_operations proc_kmsg_operations = {
      	read:		kmsg_read,
      	poll:		kmsg_poll,
      	open:		kmsg_open,
      	release:	kmsg_release,
      };