linux-kernel - Re: [PATCH 00/16] sched/wait: Collapse __wait

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Date:	Wed, 9 Oct 2013 07:21:23 -0700
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo.kernel.org@...il.com>,
	Oleg Nesterov <oleg@...hat.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 00/16] sched/wait: Collapse __wait_event macros -v5

On Wed, Oct 09, 2013 at 08:08:06AM +0200, Ingo Molnar wrote:
> 
> * Paul E. McKenney <paulmck@...ux.vnet.ibm.com> wrote:
> 
> > On Tue, Oct 08, 2013 at 08:28:43PM -0700, Paul E. McKenney wrote:
> > > On Tue, Oct 08, 2013 at 01:40:56PM -0700, Paul E. McKenney wrote:
> > > > On Tue, Oct 08, 2013 at 09:47:18PM +0200, Ingo Molnar wrote:
> > 
> > [ . . . ]
> > 
> > > > > > Should I be thinking about making a kernel/rcu?
> > > > > 
> > > > > I wanted to raise it with you at the KS :-)
> > > > 
> > > > Sorry for jumping the gun.  ;-)
> > > > 
> > > > > To me it would sure look nice to have kernel/rcu/tree.c, 
> > > > > kernel/rcu/tiny.c, kernel/rcu/core.c, etc.
> > > > > 
> > > > > [ ... and we would certainly also break new ground by introducing a
> > > > >   "torture.c" file, for the first time in Linux kernel history! ;-) ]
> > > > 
> > > > Ooh...  I had better act fast!  ;-)
> > > > 
> > > > > But it's really your call, this is something you should only do if you are 
> > > > > comfortable with it.
> > > > 
> > > > I have actually been thinking about it off and on for some time.
> > > 
> > > And here is a first cut.  Just the renaming and needed adjustments,
> > > no splitting or merging of files.
> > > 
> > > Thoughts?
> > 
> > Wow!  I rebased my commits destined for 3.14 on top of this, and "git 
> > rebase" did it with several protests, but with no manual intervention 
> > required.
> 
> Git is cool!

I have indeed learned to love it through a long series of experiences
like this!  ;-)

> > Now if it actually still builds, boots, and runs...  ;-)
> 
> Booting is overrated! ;-)

Well, some work is needed on this front, but will get there.

> Seriously, this is good stuff.
> 
>    Reviewed-by: Ingo Molnar <mingo@...nel.org>

Very good, I have added this.

> I'd definitely argue in favor of doing a mechanical move first, then any 
> further reorganization separately.
> 
> (One minor detail I noticed: you'll probably need to update the RCU file 
> patterns in MAINTAINERS as well.)

Ah, good point, fixed!

							Thanx, Paul

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