linux-kernel - Re: [patch 8/9] Documentation: Fix invalid rcu assumptions

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Message-ID: <20091211163729.GD6803@linux.vnet.ibm.com>
Date:	Fri, 11 Dec 2009 08:37:30 -0800
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	David Howells <dhowells@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	LKML <linux-kernel@...r.kernel.org>,
	Dipankar Sarma <dipankar@...ibm.com>,
	Ingo Molnar <mingo@...e.hu>,
	Peter Zijlstra <peterz@...radead.org>,
	Oleg Nesterov <oleg@...sign.ru>,
	Al Viro <viro@...iv.linux.org.uk>,
	James Morris <jmorris@...ei.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Randy Dunlap <rdunlap@...otime.net>,
	Vegard Nossum <vegardno@....uio.no>
Subject: Re: [patch 8/9] Documentation: Fix invalid rcu assumptions

On Fri, Dec 11, 2009 at 08:07:45AM -0800, Linus Torvalds wrote:
> 
> 
> On Fri, 11 Dec 2009, David Howells wrote:
> 
> > Thomas Gleixner <tglx@...utronix.de> wrote:
> > 
> > > -197          * we use RCU protection here
> > > +196          * caller must be holding the RCU readlocke
> > 
> > You mean "readlock" I suspect.
> 
> Or maybe he's talking about ye olde readlocke, used widely for OS research 
> throughout the middle ages. You still find that spelling in some really 
> old CS literature.

Interestingly enough, they also tended to split it into two words and
capitalize it, as can be seen by searching for "Read Locke" at

	http://faculty.uml.edu/enelson/modern07.htm

							Thanx, Paul
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