linux-kernel - Re: [PATCH] printk: Add printk_flush() to force buffered text to console

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Message-ID: <1340304902.22218.12.camel@joe2Laptop>
Date:	Thu, 21 Jun 2012 11:55:02 -0700
From:	Joe Perches <joe@...ches.com>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Ingo Molnar <mingo@...nel.org>,
	Fengguang Wu <fengguang.wu@...el.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	"kay.sievers" <kay.sievers@...y.org>,
	"Paul E. McKenney" <paulmck@...ibm.com>,
	Ingo Molnar <mingo@...e.hu>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] printk: Add printk_flush() to force buffered text to
 console

On Thu, 2012-06-21 at 14:49 -0400, Steven Rostedt wrote:
> Actually, I'm starting to lean back to my original patch, and stick a
> pr_flush() in there.

Oh good.  I think that's better than a new printk.

> As it basically just acts like a barrier. "Make
> sure the output I printed actually gets out to the console before I
> continue".

I think that'd be bad and hard to do.

I think you mean simply attempt to deliver it
rather than guarantee it's actually emitted.


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