linux-kernel - Re: [PATCH RFC tip/core/rcu 01/41] rcu: Bring RTFP.txt up to date.

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Date:	Fri, 3 Feb 2012 10:00:47 -0800
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	Josh Triplett <josh@...htriplett.org>
Cc:	linux-kernel@...r.kernel.org, mingo@...e.hu, laijs@...fujitsu.com,
	dipankar@...ibm.com, akpm@...ux-foundation.org,
	mathieu.desnoyers@...ymtl.ca, niv@...ibm.com, tglx@...utronix.de,
	peterz@...radead.org, rostedt@...dmis.org, Valdis.Kletnieks@...edu,
	dhowells@...hat.com, eric.dumazet@...il.com, darren@...art.com,
	fweisbec@...il.com, patches@...aro.org
Subject: Re: [PATCH RFC tip/core/rcu 01/41] rcu: Bring RTFP.txt up to date.

On Thu, Feb 02, 2012 at 02:32:36PM -0800, Josh Triplett wrote:
> On Thu, Feb 02, 2012 at 08:47:25AM -0800, Paul E. McKenney wrote:

[ . . . ]

> > > Not in this case, though.  This one should have the year as either 2008
> > > or 2010 depending on which date you count.
> > 
> > Odd.  Color me confused.  This is 7,426,511, which was filed in 2004 and
> > granted in 2008.  Fixed.  I think, anyway.  I am -so- confused!  ;-)
> 
> I think I can clear up the confusion here.  Three different relevant
> patents exist:
> 
> - Patent 7,426,511, titled "Efficient support of consistent cyclic
>   search with read-copy-update", filed 2004-03-08 and granted
>   2008-09-16.
> 
> - Patent 7,814,082, a continuation of 7,426,511, *also* titled
>   "Efficient support of consistent cyclic search with read-copy-update",
>   filed 2008-03-18 and granted 2010-10-12.  I grabbed the text of
>   7,426,511 and this one, and ran them through git diff --no-index
>   --color-words; it looks like 7,814,082 contains some very minor text
>   revisions (not semantically significant), plus a change to the types
>   of the claims (to claim a system and a computer program product,
>   rather than a method).
> 
> - Patent 7,953,778, titled "Efficient support of consistent cyclic
>   search with read-copy update and parallel updates", filed 2008-05-20
>   and granted 2011-05-31.  As suggested by the title, this one adds
>   parallel updates.
> 
> Your patch added citations for the first and third of those, 7,426,511
> and 7,953,778, with BibTeX tags PaulEMcKenney2011cyclicRCU and
> PaulEMcKenney2011cyclicparallelRCU.  I think you probably want to
> replace the citation to 7,426,511 with a citation to 7,814,082, or cite
> all three and annotate 7,426,511 as superseded by 7,814,082.  In any
> case, you'll want to either drop or fix the years in the BibTeX tags.

Sad that I needed your help with this, but thank you for providing it!
I am leaving #1 and #3, but with the correct dates.

							Thanx, Paul

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