/* * 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, };