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SubjectRe: [PATCH 1/1] console: add /proc/consoles
On 11/03/2010 10:12 PM, Greg KH wrote:
> On Wed, Nov 03, 2010 at 09:03:42PM +0100, Jiri Slaby wrote:
>> On 11/03/2010 06:39 PM, Greg KH wrote:
>>> On Wed, Nov 03, 2010 at 05:25:32PM +0100, Jiri Slaby wrote:
>>>> Actually where this code should be in fs/proc/? Most of the /proc/* is
>>>> handled elsewhere (fs/ mm/ kernel/). The rest is handled in specialized
>>>> fs/proc/FILE.c.
>>>
>>> What's wrong with putting it into fs/proc/proc_tty.c? That seems like
>>> the most logical thing to me...
>>
>> consoles have little to do with ttys. Except ttys can be consoles.
>
> And all consoles are ttys :)

Oh, they are not. Or maybe I'm missing something?

>> To me
>> it seems illogical to have info about netconsole, parallel consoles or
>> early serials somewhere in /proc/tty/. That's why I moved the info from
>> /proc/tty/ to /proc and the code from fs/proc/proc_tty.c to
>> kernel/printk.c where consoles are managed.
>
> Ok, how about fs/proc/proc_console.c instead?

Yes, this sounds good.

> And no, printk.c is not the most logical place for something like this.
> If I see a proc file, I am not going to automatically assume that
> printk.c would have anything to do with it. As it really doesn't
> (printk goes to the kernel log buffer, not a console).

Actually it does all the job:
* filling the log/ring buffer (v/printk)
* managing consoles (un/register_console)
* writing to consoles (call_console_drivers and friends)

thanks,
--
js


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