scummvm random work
[patches.git] / printk-add-interfaces-for-external-access-to-the-log-buffer-dont-use-ring-buffer.patch
CommitLineData
5e993f12 1Key off of the log buffer rather than the kernel ring buffer as the
2latter is constantly cleared by userspace daemons. Also, make sure
3we index into the buffer properly as pointed out by Tim Bird.
4
5Signed-off-by: Mike Frysinger <vapier@gentoo.org>
6---
7--- a/kernel/printk.c
8+++ b/kernel/printk.c
9@@ -168,7 +168,7 @@
10 */
11 int log_buf_get_len(void)
12 {
13- return log_end - log_start;
14+ return logged_chars;
15 }
16
17 /*
18@@ -191,10 +191,9 @@
19 if (len > max)
20 len = max;
21 ret = len;
22- while (len-- > 0) {
23- *dest = LOG_BUF(idx++);
24- ++dest;
25- }
26+ idx += (log_end - max);
27+ while (len-- > 0)
28+ dest[len] = LOG_BUF(idx + len);
29 }
30
31 if (took_lock)