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: Create helper function to queue deferred console handling

Browse source 
It is just a preparation step. The patch does not change
the existing behavior.

Link: http://lkml.kernel.org/r/[email protected]
To: Steven Rostedt <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Tetsuo Handa <[email protected]>
Cc: Sergey Senozhatsky <[email protected]>
Cc: [email protected]
Cc: [email protected]
Acked-by: Sergey Senozhatsky <[email protected]>
Signed-off-by: Petr Mladek <[email protected]>
This commit is contained in:
Petr Mladek 2018-06-27 16:08:16 +02:00
commit a338f84dc1
1 changed files with 9 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

14
kernel/printk/printk.c
View file

@ -2887,16 +2887,20 @@ void wake_up_klogd(void)
preempt_enable();
}
void defer_console_output(void)
{
preempt_disable();
__this_cpu_or(printk_pending, PRINTK_PENDING_OUTPUT);
irq_work_queue(this_cpu_ptr(&wake_up_klogd_work));
preempt_enable();
}
int vprintk_deferred(const char *fmt, va_list args)
{
int r;
r = vprintk_emit(0, LOGLEVEL_SCHED, NULL, 0, fmt, args);
preempt_disable();
__this_cpu_or(printk_pending, PRINTK_PENDING_OUTPUT);
irq_work_queue(this_cpu_ptr(&wake_up_klogd_work));
preempt_enable();
defer_console_output();
return r;
}