lkml.org 
[lkml]   [2017]   [Apr]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [RFC][PATCH 2/2] printk: Add /sys/consoles/${con}/ and maxlevel attribute
On Tue, 4 Apr 2017 16:03:20 -0700
Calvin Owens <calvinowens@fb.com> wrote:

> This does the simplest possible thing: add a directory at the root of
> sysfs that allows setting the "maxlevel" parameter for each console.
>
> We can let kobject destruction race with console removal: if it does,
> maxlevel_{show,store}() will safely fail with -ENODEV. This is a little
> weird, but avoids embedding the kobject and therefore needing to totally
> refactor the way we handle console struct lifetime.

Can you also add a patch that allows this to be set on the kernel
command line, when the consoles are defined.

-- Steve

>
> Signed-off-by: Calvin Owens <calvinowens@fb.com>

\
 
 \ /
  Last update: 2017-04-05 05:31    [W:0.126 / U:0.156 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site