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From: Steven Rostedt <rostedt@goodmis.org>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Kay Sievers <kay@vrfy.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	LKML <linux-kernel@vger.kernel.org>, Ingo Molnar <mingo@elte.hu>,
	Wu Fengguang <fengguang.wu@intel.com>,
	Joe Perches <joe@perches.com>,
	"Paul E. McKenney" <paulmck@us.ibm.com>
Subject: Re: [PATCH v3] printk: Have printk() never buffer its data
Date: Fri, 29 Jun 2012 07:18:38 -0400	[thread overview]
Message-ID: <1340968718.16702.98.camel@gandalf.stny.rr.com> (raw)
In-Reply-To: <20120629053027.GA9841@kroah.com>

On Fri, 2012-06-29 at 01:30 -0400, Greg Kroah-Hartman wrote:
>  
> > I wonder if it would be better to do the following for the above two
> > ifs:
> > 
> > 	if (cont.len && cont.owner == current) {
> > 		if (!prefix)
> > 			stored = cont_add(facility, level, text, text_len);
> > 		cont_flush();
> > 	}
> > 
> > If the prefix was true, then the cont.flush would be set when cont_add()
> > is called, and the first thing that cont_add() does:
> > 
> > 	if (cont.len && cont.flushed)
> > 		return false;
> > 
> > which would always be true (returning false) if prefix was set.
> > 
> > And the second cont_flush() is a nop due to it doing:
> > 
> > 	if (cont.flushed)
> > 		return;
> 
> It might be "better", and this would be a nice optimization, but is it
> needed right now?  In other words, I'd like to get this patch into
> linux-next soon to get testing to get to Linus before 3.5-final comes
> out, don't you?

Sure, pull it as is, and you can add my Tested-by, and Acked-by tags
(Steven Rostedt <rostedt@goodmis.org>).

I'll send you a patch to do this update that you can queue for 3.6.
OK?

-- Steve



  reply	other threads:[~2012-06-29 11:18 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-06-25 19:05 [PATCH v3] printk: Have printk() never buffer its data Steven Rostedt
2012-06-25 22:07 ` Andrew Morton
2012-06-25 23:55   ` Greg Kroah-Hartman
2012-06-26  0:01     ` Linus Torvalds
2012-06-26  0:23       ` Greg Kroah-Hartman
2012-06-26  0:40         ` Linus Torvalds
2012-06-26  0:56           ` Kay Sievers
2012-06-26  1:40             ` Linus Torvalds
2012-06-26 16:07               ` Kay Sievers
2012-06-26 16:30                 ` Joe Perches
2012-06-26 16:58                 ` Greg Kroah-Hartman
2012-06-26 17:00                   ` Kay Sievers
2012-06-26 17:02                     ` Greg Kroah-Hartman
2012-06-26 18:34                     ` Greg Kroah-Hartman
2012-06-26 18:38                       ` Greg Kroah-Hartman
2012-06-26 18:48                         ` Greg Kroah-Hartman
2012-06-27 15:13                 ` Steven Rostedt
2012-06-27 15:18                   ` Steven Rostedt
2012-06-27 15:26                     ` Kay Sievers
2012-06-28  7:38                       ` Kay Sievers
2012-06-28  1:48                         ` Greg Kroah-Hartman
2012-06-28  1:54                           ` Steven Rostedt
2012-06-28  2:55                         ` Steven Rostedt
2012-06-29  5:30                           ` Greg Kroah-Hartman
2012-06-29 11:18                             ` Steven Rostedt [this message]
2012-06-29 15:40                               ` Greg Kroah-Hartman
2012-06-28  5:00                         ` Joe Perches
2012-07-05  7:03                 ` Michael Neuling
2012-07-05  8:39                   ` Kay Sievers
2012-07-05  8:53                     ` Kay Sievers
2012-07-05 10:20                       ` Michael Neuling
2012-07-05 11:47                         ` Kay Sievers
2012-07-05 12:50                           ` Kay Sievers
2012-07-06  0:41                             ` Michael Neuling
2012-07-06  0:56                               ` Kay Sievers
2012-07-06  3:39                                 ` Michael Neuling
2012-07-06  3:47                                   ` Michael Neuling
2012-07-06 10:46                                     ` Kay Sievers
2012-07-06 15:12                                       ` Kay Sievers
2012-07-06 21:04                                         ` Michael Neuling
2012-07-08 17:55                                           ` Kay Sievers
2012-07-09 17:09                                             ` Greg Kroah-Hartman
2012-07-09 17:15                                               ` Joe Perches
2012-07-09 22:36                                               ` Michael Neuling
2012-07-09 21:42                                             ` Joe Perches
2012-07-09 22:10                                               ` Kay Sievers
2012-07-09 22:29                                                 ` Joe Perches
2012-07-09 22:40                                                   ` Kay Sievers
2012-07-09 23:32                                                     ` Joe Perches
2012-07-09 23:41                                                       ` Joe Perches
2012-06-26  0:18   ` Joe Perches

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