linux-kernel - Re: [PATCH] printk: Move printk

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Fri, 07 Jul 2017 22:44:19 -0700
From:   Joe Perches <joe@...ches.com>
To:     Sergey Senozhatsky <sergey.senozhatsky@...il.com>
Cc:     Petr Mladek <pmladek@...e.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] printk: Move printk_delay to separate file

On Sat, 2017-07-08 at 14:24 +0900, Sergey Senozhatsky wrote:
> On (07/07/17 11:08), Joe Perches wrote:
> > printk.c is a huge file with too many local functions for a
> > human to read and easily parse.
> > 
> > Start to separate out bits into smaller files.
> > 
> > Miscellanea:
> > 
> > o Rename suppress_message_printing to printk_suppress_message
> > o Add function definitions to printk.h
> 
> I don't mind, in general, but I'm a bit hesitant. we want to have
> automatic printk throttling (printk delay basically) and we need
> some of those printk-internal *_seq numbers to see how far consoles
> are behind the logbuf. so either we need to 'un-static' those *_seq
> and extern them in delay.c or simply keep printk-delay machinery in
> printk.c and add the new function.
> 
> // p.s. I'll take a look at the patch a bit later. I'm on a sick leave now.

Hey Sergey.

Basically, this is a simple trial patch.

printk is getting nothing but more complex.

I believe printk is in real need of logical separation
into multiple parts to isolate the various logic bits.

o console
o kmsg/devkmsg
o logbuf
o syslog

etc...