linux-kernel - Re: [PATCH -mm] mm: Fix memory hotplug + sparsemem build.

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Message-Id: <20070913194130.1611fd78.akpm@linux-foundation.org>
Date:	Thu, 13 Sep 2007 19:41:30 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Yasunori Goto <y-goto@...fujitsu.com>
Cc:	Andy Whitcroft <apw@...dowen.org>,
	Paul Mundt <lethal@...ux-sh.org>, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org
Subject: Re: [PATCH -mm] mm: Fix memory hotplug + sparsemem build.

On Fri, 14 Sep 2007 11:02:43 +0900 Yasunori Goto <y-goto@...fujitsu.com> wrote:

> > >  	/* call arch's memory hotadd */
> > > 
> > 
> > OK, we're getting into a mess here.  This patch fixes
> > update-n_high_memory-node-state-for-memory-hotadd.patch, but which patch
> > does update-n_high_memory-node-state-for-memory-hotadd.patch fix?
> > 
> > At present I just whacked
> > update-n_high_memory-node-state-for-memory-hotadd.patch at the end of
> > everything, but that was lazy of me and it ends up making a mess.
> 
> It is enough. No more patch is necessary for these issues.
> I already fixed about Andy-san's comment. :-)

Now I'm more confused.  I have two separeate questions:

a) Is the justr-added update-n_high_memory-node-state-for-memory-hotadd-fix.patch
   still needed?

b) Which patch in 2.6.22-rc4-mm1 does
   update-n_high_memory-node-state-for-memory-hotadd.patch fix?  In other
   words, into which patch should I fold
   update-n_high_memory-node-state-for-memory-hotadd.patch prior to sending
   to Linus?

   (I (usually) get to work this out for myself.  Sometimes it is painful).

Generally, if people tell me which patch-in-mm their patch is fixing,
it really helps.  Adrian does this all the time.

Thanks.
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