From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- fs/proc/kmsg.c | 55 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 fs/proc/kmsg.c (limited to 'fs/proc/kmsg.c') diff --git a/fs/proc/kmsg.c b/fs/proc/kmsg.c new file mode 100644 index 000000000000..10d37bf25206 --- /dev/null +++ b/fs/proc/kmsg.c @@ -0,0 +1,55 @@ +/* + * linux/fs/proc/kmsg.c + * + * Copyright (C) 1992 by Linus Torvalds + * + */ + +#include +#include +#include +#include +#include +#include + +#include +#include + +extern wait_queue_head_t log_wait; + +extern int do_syslog(int type, char __user *bug, int count); + +static int kmsg_open(struct inode * inode, struct file * file) +{ + return do_syslog(1,NULL,0); +} + +static int kmsg_release(struct inode * inode, struct file * file) +{ + (void) do_syslog(0,NULL,0); + 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(9, NULL, 0)) + return -EAGAIN; + return do_syslog(2, buf, count); +} + +static unsigned int kmsg_poll(struct file *file, poll_table *wait) +{ + poll_wait(file, &log_wait, wait); + if (do_syslog(9, NULL, 0)) + return POLLIN | POLLRDNORM; + return 0; +} + + +struct file_operations proc_kmsg_operations = { + .read = kmsg_read, + .poll = kmsg_poll, + .open = kmsg_open, + .release = kmsg_release, +}; -- cgit v1.2.3-70-g09d2