All of lore.kernel.org
 help / color / mirror / Atom feed
From: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
To: Petr Mladek <pmladek@suse.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
	Steven Rostedt <rostedt@goodmis.org>, Jan Kara <jack@suse.cz>,
	Andrew Morton <akpm@linux-foundation.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Peter Zijlstra <peterz@infradead.org>,
	"Rafael J . Wysocki" <rjw@rjwysocki.net>,
	Eric Biederman <ebiederm@xmission.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jslaby@suse.com>, Pavel Machek <pavel@ucw.cz>,
	Len Brown <len.brown@intel.com>,
	linux-kernel@vger.kernel.org,
	Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Subject: Re: [RFC][PATCHv2 7/8] printk: add printk emergency_mode parameter
Date: Tue, 4 Apr 2017 17:29:30 +0900	[thread overview]
Message-ID: <20170404082930.GC470@jagdpanzerIV.localdomain> (raw)
In-Reply-To: <20170403152921.GF3452@pathway.suse.cz>

On (04/03/17 17:29), Petr Mladek wrote:
[..]
> > +module_param_cb(emergency_mode,
> > +		&printk_kthread_disabled_ops,
> > +		&printk_kthread_disabled,
> > +		0644);
> > +MODULE_PARM_DESC(emergency_mode,
> > +		"don't offload message printing to printk kthread");
> 
> I wonder if we could make this easier. Something like:
> 
> static bool printk_force_emergency;
> module_param_named(force_emergency, printk_force_emergency,
> 		   bool, S_IRUGO | S_IWUSR);

yes, can do. thanks.

> and use it instead of printk_kthread_disabled variable. It was
> confusing anyway. You already mentioned that it did not
> stop the kthread.

yeah, I didn't like the `printk_kthread_disabled' naming, but
at the same time didn't feel like having `printk_emergency' and
`printk_forced_emergency'. will take a look.

	-ss

  reply	other threads:[~2017-04-04  8:29 UTC|newest]

Thread overview: 109+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-29  9:25 [RFC][PATCHv2 0/8] printk: introduce printing kernel thread Sergey Senozhatsky
2017-03-29  9:25 ` [RFC][PATCHv2 1/8] printk: move printk_pending out of per-cpu Sergey Senozhatsky
2017-03-31 13:09   ` Petr Mladek
2017-03-31 13:33     ` Peter Zijlstra
2017-04-03 11:23       ` Sergey Senozhatsky
2017-04-03 12:43         ` Petr Mladek
2017-03-29  9:25 ` [RFC][PATCHv2 2/8] printk: introduce printing kernel thread Sergey Senozhatsky
2017-04-04  9:01   ` Petr Mladek
2017-04-04  9:36     ` Sergey Senozhatsky
2017-04-06 17:14   ` Pavel Machek
2017-04-07  5:12     ` Sergey Senozhatsky
2017-04-07  7:21       ` Pavel Machek
2017-04-07  8:15         ` Sergey Senozhatsky
2017-04-07 12:06           ` Pavel Machek
2017-03-29  9:25 ` [RFC][PATCHv2 3/8] printk: offload printing from wake_up_klogd_work_func() Sergey Senozhatsky
2017-03-31 14:56   ` Petr Mladek
2017-04-04 16:15     ` Sergey Senozhatsky
2017-03-29  9:25 ` [RFC][PATCHv2 4/8] pm: switch to printk.emergency mode in unsafe places Sergey Senozhatsky
2017-03-31 15:06   ` Petr Mladek
2017-04-06 17:20   ` Pavel Machek
2017-04-09 10:59     ` Andreas Mohr
2017-04-10 12:20       ` Petr Mladek
2017-04-10 14:38         ` Sergey Senozhatsky
2017-03-29  9:25 ` [RFC][PATCHv2 5/8] sysrq: " Sergey Senozhatsky
2017-03-31 15:37   ` Petr Mladek
2017-04-01  0:04     ` Sergey Senozhatsky
2017-03-29  9:25 ` [RFC][PATCHv2 6/8] kexec: " Sergey Senozhatsky
2017-03-31 15:39   ` Petr Mladek
2017-03-29  9:25 ` [RFC][PATCHv2 7/8] printk: add printk emergency_mode parameter Sergey Senozhatsky
2017-04-03 15:29   ` Petr Mladek
2017-04-04  8:29     ` Sergey Senozhatsky [this message]
2017-03-29  9:25 ` [RFC][PATCHv2 8/8] printk: enable printk offloading Sergey Senozhatsky
2017-03-30 21:38   ` [printk] fbc14616f4: BUG:kernel_reboot-without-warning_in_test_stage kernel test robot
2017-03-30 21:38     ` kernel test robot
2017-03-31  2:35     ` Sergey Senozhatsky
2017-03-31  2:35       ` Sergey Senozhatsky
2017-03-31  4:04       ` Sergey Senozhatsky
2017-03-31  4:04         ` Sergey Senozhatsky
2017-03-31  6:39         ` Ye Xiaolong
2017-03-31  6:39           ` Ye Xiaolong
2017-03-31 14:47           ` Sergey Senozhatsky
2017-03-31 14:47             ` Sergey Senozhatsky
2017-03-31 15:28             ` Eric W. Biederman
2017-03-31 15:28               ` Eric W. Biederman
2017-04-03  9:31               ` Jan Kara
2017-04-03  9:31                 ` Jan Kara
2017-04-03 10:06                 ` Petr Mladek
2017-04-03 10:06                   ` Petr Mladek
2017-04-06 17:33                 ` Pavel Machek
2017-04-06 17:33                   ` Pavel Machek
2017-04-07  4:44                   ` Sergey Senozhatsky
2017-04-07  4:44                     ` Sergey Senozhatsky
2017-04-07  7:15                     ` Pavel Machek
2017-04-07  7:15                       ` Pavel Machek
2017-04-07  7:46                       ` Sergey Senozhatsky
2017-04-07  7:46                         ` Sergey Senozhatsky
2017-04-07  8:14                         ` Pavel Machek
2017-04-07  8:14                           ` Pavel Machek
2017-04-07 12:10                           ` Sergey Senozhatsky
2017-04-07 12:10                             ` Sergey Senozhatsky
2017-04-07 12:44                             ` Pavel Machek
2017-04-07 12:44                               ` Pavel Machek
2017-04-07 14:40                               ` Steven Rostedt
2017-04-07 14:40                                 ` Steven Rostedt
2017-05-08  6:37                                 ` Sergey Senozhatsky
2017-05-08  6:37                                   ` Sergey Senozhatsky
2017-05-17 13:13                                   ` Petr Mladek
2017-05-17 13:13                                     ` Petr Mladek
2017-04-07 15:13                               ` Sergey Senozhatsky
2017-04-07 15:13                                 ` Sergey Senozhatsky
2017-04-07 15:23                                 ` Peter Zijlstra
2017-04-07 15:23                                   ` Peter Zijlstra
2017-04-07 15:40                                   ` Sergey Senozhatsky
2017-04-07 15:40                                     ` Sergey Senozhatsky
2017-04-09 18:21                                     ` Eric W. Biederman
2017-04-09 18:21                                       ` Eric W. Biederman
2017-04-10  4:46                                       ` Sergey Senozhatsky
2017-04-10  4:46                                         ` Sergey Senozhatsky
2017-04-09 10:12                                 ` Pavel Machek
2017-04-09 10:12                                   ` Pavel Machek
2017-04-10  4:53                                   ` Sergey Senozhatsky
2017-04-10  4:53                                     ` Sergey Senozhatsky
2017-04-10 11:54                                     ` Petr Mladek
2017-04-10 11:54                                       ` Petr Mladek
2017-04-10 15:08                                       ` Sergey Senozhatsky
2017-04-10 15:08                                         ` Sergey Senozhatsky
2017-04-10 18:48                                     ` Pavel Machek
2017-04-10 18:48                                       ` Pavel Machek
2017-04-11  1:46                                       ` Sergey Senozhatsky
2017-04-11  1:46                                         ` Sergey Senozhatsky
2017-04-11 16:19                                         ` Sergey Senozhatsky
2017-04-12 18:43                                           ` Pavel Machek
2017-04-13  4:34                                             ` Sergey Senozhatsky
2017-04-13  5:50                                           ` Sergey Senozhatsky
2017-04-13  8:19                                             ` Sergey Senozhatsky
2017-04-13 14:03                                           ` Petr Mladek
2017-04-14  4:42                                             ` Sergey Senozhatsky
2017-04-07 14:29                           ` Steven Rostedt
2017-04-07 14:29                             ` Steven Rostedt
2017-04-09  9:57                             ` Pavel Machek
2017-04-09  9:57                               ` Pavel Machek
2017-04-03 10:51               ` Sergey Senozhatsky
2017-04-03 10:51                 ` Sergey Senozhatsky
2017-04-05  7:29           ` Ye Xiaolong
2017-04-05  7:29             ` Ye Xiaolong
2017-04-05  8:40             ` Sergey Senozhatsky
2017-04-05  8:40               ` Sergey Senozhatsky
2017-04-03 15:42   ` [RFC][PATCHv2 8/8] printk: enable printk offloading Petr Mladek
2017-04-04 13:20     ` Sergey Senozhatsky

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20170404082930.GC470@jagdpanzerIV.localdomain \
    --to=sergey.senozhatsky.work@gmail.com \
    --cc=akpm@linux-foundation.org \
    --cc=ebiederm@xmission.com \
    --cc=gregkh@linuxfoundation.org \
    --cc=jack@suse.cz \
    --cc=jslaby@suse.com \
    --cc=len.brown@intel.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=pavel@ucw.cz \
    --cc=peterz@infradead.org \
    --cc=pmladek@suse.com \
    --cc=rjw@rjwysocki.net \
    --cc=rostedt@goodmis.org \
    --cc=sergey.senozhatsky@gmail.com \
    --cc=torvalds@linux-foundation.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.