On (03/23/17 11:40), Petr Mladek wrote:
[..]
> Let me do one more attempt for a generic name. What about?
>
> printk_console_press();or try_harder() or push()
> printk_console_relax();
>
> or something like this?
I replied in another thread.
how about printk_rescue?
-ss
On (03/23/17 11:40), Petr Mladek wrote:
[..]
> Let me do one more attempt for a generic name. What about?
>
> printk_console_press();or try_harder() or push()
> printk_console_relax();
>
> or something like this?
I replied in another thread.
how about printk_rescue?
-ss
On Thu 2017-03-23 14:12:42, Sergey Senozhatsky wrote:
> On (03/22/17 17:40), Petr Mladek wrote:
> [..]
> > > +void console_printing_thread_off(void)
> > > +{
> > > + printk_kthread_disable++;
> > > + barrier();
> > > +}
> > > +
> > > +/* This re-enables printk_kthread offloading. */
> > > +void
On Thu 2017-03-23 14:12:42, Sergey Senozhatsky wrote:
> On (03/22/17 17:40), Petr Mladek wrote:
> [..]
> > > +void console_printing_thread_off(void)
> > > +{
> > > + printk_kthread_disable++;
> > > + barrier();
> > > +}
> > > +
> > > +/* This re-enables printk_kthread offloading. */
> > > +void
On (03/22/17 17:40), Petr Mladek wrote:
[..]
> > +void console_printing_thread_off(void)
> > +{
> > + printk_kthread_disable++;
> > + barrier();
> > +}
> > +
> > +/* This re-enables printk_kthread offloading. */
> > +void console_printing_thread_on(void)
> > +{
> > + barrier();
> > +
On (03/22/17 17:40), Petr Mladek wrote:
[..]
> > +void console_printing_thread_off(void)
> > +{
> > + printk_kthread_disable++;
> > + barrier();
> > +}
> > +
> > +/* This re-enables printk_kthread offloading. */
> > +void console_printing_thread_on(void)
> > +{
> > + barrier();
> > +
On Mon 2017-03-06 21:45:51, Sergey Senozhatsky wrote:
> This patch introduces a dedicated printing kernel thread - printk_kthread.
> The main purpose of this kthread is to offload printing to a non-atomic
> and always scheduleable context, which eliminates 4) and makes 1)-3) less
> critical.
On Mon 2017-03-06 21:45:51, Sergey Senozhatsky wrote:
> This patch introduces a dedicated printing kernel thread - printk_kthread.
> The main purpose of this kthread is to offload printing to a non-atomic
> and always scheduleable context, which eliminates 4) and makes 1)-3) less
> critical.
printk() is quite complex internally and, basically, it does two
slightly independent things:
a) adds a new message to a kernel log buffer (log_store())
b) prints kernel log messages to serial consoles (console_unlock())
while (a) is guaranteed to be executed by printk(), (b) is not, for a
printk() is quite complex internally and, basically, it does two
slightly independent things:
a) adds a new message to a kernel log buffer (log_store())
b) prints kernel log messages to serial consoles (console_unlock())
while (a) is guaranteed to be executed by printk(), (b) is not, for a
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