linux-kernel - Re: [RFC v3 0/9] Additional kmsg devices

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Message-ID: <CAFLxGvzb7asiOdjPAV+cFxiC1TQisd4e7yPP9s9gqSCdVM-jmA@mail.gmail.com>
Date:	Mon, 19 Oct 2015 15:26:14 +0200
From:	Richard Weinberger <richard.weinberger@...il.com>
To:	Paul Osmialowski <p.osmialowsk@...sung.com>
Cc:	Jonathan Corbet <corbet@....net>, Arnd Bergmann <arnd@...db.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Petr Mladek <pmladek@...e.cz>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Daniel Mack <daniel@...que.org>,
	Kay Sievers <kay.sievers@...y.org>,
	Joe Perches <joe@...ches.com>, Tejun Heo <tj@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	"open list:ABI/API" <linux-api@...r.kernel.org>,
	Marcin Niesluchowski <m.niesluchow@...sung.com>,
	Karol Lewandowski <k.lewandowsk@...sung.com>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
	Shuah Khan <shuahkh@....samsung.com>
Subject: Re: [RFC v3 0/9] Additional kmsg devices

On Mon, Oct 19, 2015 at 2:58 PM, Paul Osmialowski
<p.osmialowsk@...sung.com> wrote:
> Dear All,
>
> This is the third iteration of Marcin Niesluchowski's serie of patches
> extending kmsg interface with ability to dynamically create (and destroy)
> kmsg-like devices which can be used by userspace for logging.
>
> In this iteration, following Joe Perches's suggestion, I've extracted
> kmsg related functions from printk.c to a new file, kmsg.c.
>
> Best regards,
> Paul
>
> Marcin Niesluchowski (7):
>   printk: add one function for storing log in proper format
>   kmsg: introduce additional kmsg devices support
>   kmsg: add additional buffers support to memory class
>   kmsg: add function for adding and deleting additional buffers
>   kmsg: add ioctl for adding and deleting kmsg* devices
>   kmsg: add ioctl for kmsg* devices operating on buffers
>   kmsg: add predefined _PID, _TID, _COMM keywords to kmsg* log dict
>
> Paul Osmialowski (2):
>   printk: extract kmsg-related routines from printk.c to kmsg.c
>   kmsg: selftests

Not CC'ing critical voices it not very nice. 8-)

As I replied to v1 of this series, IHMO we should not encourage
userspace tools to use kmsg as their poor-man's syslog.
Everything what this series does in kernel space can also be done
in userspace.

Just my two cents.

-- 
Thanks,
//richard
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