linux-kernel - Re: [PATCH tip/core/rcu 0/9] Stop using ACCESS

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Message-ID: <20150323152507.GE5718@linux.vnet.ibm.com>
Date:	Mon, 23 Mar 2015 08:25:07 -0700
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	linux-kernel@...r.kernel.org, mingo@...nel.org,
	laijs@...fujitsu.com, dipankar@...ibm.com,
	akpm@...ux-foundation.org, mathieu.desnoyers@...icios.com,
	josh@...htriplett.org, tglx@...utronix.de, peterz@...radead.org,
	dhowells@...hat.com, edumazet@...gle.com, dvhart@...ux.intel.com,
	fweisbec@...il.com, oleg@...hat.com, bobby.prani@...il.com
Subject: Re: [PATCH tip/core/rcu 0/9] Stop using ACCESS_ONCE (for v4.2)

On Mon, Mar 23, 2015 at 10:49:24AM -0400, Steven Rostedt wrote:
> On Mon, 16 Mar 2015 11:41:55 -0700
> "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com> wrote:
> 
> > Hello!
> > 
> > This patch series converts from ACCESS_ONCE() to either READ_ONCE() or
> > WRITE_ONCE(), as appropriate.  This permits better code generation and
> > error checking, and is also more compatible with C11 directions.  Each
> > file is updated separately to simplify handling of git conflicts.
> > 
> > 							Thanx, Paul
> > 
> > ------------------------------------------------------------------------
> > 
> >  include/linux/rculist.h  |    6 -
> >  include/linux/rcupdate.h |   16 ++--
> >  kernel/rcu/rcutorture.c  |    2 
> >  kernel/rcu/srcu.c        |   10 +-
> >  kernel/rcu/tiny_plugin.h |   12 +--
> >  kernel/rcu/tree.c        |  184 +++++++++++++++++++++++------------------------
> >  kernel/rcu/tree_plugin.h |   93 +++++++++++------------
> >  kernel/rcu/tree_trace.c  |    6 -
> >  kernel/rcu/update.c      |   30 +++----
> >  9 files changed, 180 insertions(+), 179 deletions(-)
> 
> Not sure why this was 9 patches. I think this could have easily been a
> single patch.

In order to make it easier to deal with conflicts and to move patches
across this series as needed.  I could consolidate them later on, just
before they are merged, if that would help.

							Thanx, Paul

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