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>
18 extern wait_queue_head_t log_wait
;
20 extern int do_syslog(int type
, char __user
*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
)
29 (void) do_syslog(0,NULL
,0);
33 static ssize_t
kmsg_read(struct file
*file
, char __user
*buf
,
34 size_t count
, loff_t
*ppos
)
36 if ((file
->f_flags
& O_NONBLOCK
) && !do_syslog(9, NULL
, 0))
38 return do_syslog(2, buf
, count
);
41 static unsigned int kmsg_poll(struct file
*file
, poll_table
*wait
)
43 poll_wait(file
, &log_wait
, wait
);
44 if (do_syslog(9, NULL
, 0))
45 return POLLIN
| POLLRDNORM
;
50 const struct file_operations proc_kmsg_operations
= {
54 .release
= kmsg_release
,