Re: [RFC][PATCH 2/2] printk: Add /sys/consoles/${con}/ and maxlevel attribute

[Steven Rostedt]

On Tue, 4 Apr 2017 16:03:20 -0700
Calvin Owens <calvinowens@xxxxxx> 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@xxxxxx>