Re: [PATCH 3/3] printk: implement support for extended console drivers

[Geert Uytterhoeven]

Hi Tejun,

On Mon, Jun 29, 2015 at 5:28 PM, Tejun Heo <tj@xxxxxxxxxx> wrote:
> On Mon, Jun 29, 2015 at 11:20:41AM +0200, Geert Uytterhoeven wrote:
>> On Wed, Apr 29, 2015 at 4:45 PM, Tejun Heo <tj@xxxxxxxxxx> wrote:
>> > --- a/kernel/printk/printk.c
>> > +++ b/kernel/printk/printk.c
>>
>> > @@ -2196,6 +2227,7 @@ out:
>> >   */
>> >  void console_unlock(void)
>> >  {
>> > +       static char ext_text[CONSOLE_EXT_LOG_MAX];
>>
>> Can you please
>>   a) make this feature optional,
>
> netconsole itself is optional & modular.  I'm not sure making further
> splits is called for, especially given the use cases.

It could be a hidden option, selected by its users (e.g. netconsole).

>>   b) (de)allocate this buffer dynamically when the first/last console with
>>       CON_EXTENDED set is (un)registered?
>
> But yeah, making the buffer allocated on demand should be simple
> enough.  Will get to it.

Thanks!

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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