A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-29 11:11:45 -04:00
Code Issues Projects Releases Packages Wiki Activity

printk/tracing: Add console output tracing

Browse source 
Add a printk.console trace point to record any printk
messages into the trace, regardless of the current
console loglevel. This can help correlate (existing)
printk debugging with other tracing.

Link: http://lkml.kernel.org/r/[email protected]

Acked-by: Frederic Weisbecker <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Cc: Ingo Molnar <[email protected]>
Acked-by: Peter Zijlstra <[email protected]>
Acked-by: Thomas Gleixner <[email protected]>
Signed-off-by: Johannes Berg <[email protected]>
Signed-off-by: Steven Rostedt <[email protected]>
This commit is contained in:
Johannes Berg 2011-11-24 20:03:08 +01:00 • committed by Steven Rostedt
commit 9510035849
2 changed files with 46 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

5
kernel/printk.c
View file

@ -44,6 +44,9 @@
#include <asm/uaccess.h>
#define CREATE_TRACE_POINTS
#include <trace/events/printk.h>
/*
* Architectures can override it:
*/
@ -542,6 +545,8 @@ MODULE_PARM_DESC(ignore_loglevel, "ignore loglevel setting, to"
static void _call_console_drivers(unsigned start,
unsigned end, int msg_log_level)
{
trace_console(&LOG_BUF(0), start, end, log_buf_len);
if ((msg_log_level < console_loglevel || ignore_loglevel) &&
console_drivers && start != end) {
if ((start & LOG_BUF_MASK) > (end & LOG_BUF_MASK)) {