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Message-ID: <436EEB5E.5020704@yahoo.com.au>
Date: Mon, 07 Nov 2005 16:51:26 +1100
From: Nick Piggin <nickpiggin@yahoo.com.au>
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To: paulmck@us.ibm.com
CC: Andrew Morton <akpm@osdl.org>, Ingo Molnar <mingo@elte.hu>,
       linux-kernel@vger.kernel.org, oleg@tv-sign.ru, dipankar@in.ibm.com,
       suzannew@cs.pdx.edu
Subject: Re: [PATCH] Fixes for RCU handling of task_struct
References: <20051031020535.GA46@us.ibm.com> <20051031140459.GA5664@elte.hu> <20051106134945.0e10cb60.akpm@osdl.org> <436EA9F9.4020809@yahoo.com.au> <20051107045809.GA24195@us.ibm.com>
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Paul E. McKenney wrote:
> On Mon, Nov 07, 2005 at 12:12:25PM +1100, Nick Piggin wrote:

>>Yes, it is basically ready to go.
> 
> 
> Would it simplify the rcuref.h code?  Or lib/dec_and_lock.c?
> 

Yep, I recently posted it to lkml... rcuref.h disappears, and
dec_and_lock becomes simplified not to mention more efficient
on those architectures which do not define HAVE_ARCH_CMPXCHG.

http://marc.theaimsgroup.com/?l=linux-kernel&m=113117753625350&w=2
http://marc.theaimsgroup.com/?l=linux-kernel&m=113117753629218&w=2

I need the infrastructure for lockless pagecache, but fortunately
it is very useful for other things as well. Especially lockless
algorithms it seems.

Nick

-- 
SUSE Labs, Novell Inc.

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