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Date: Tue, 8 May 2012 19:57:48 +0200
From: Sam Ravnborg <sam@ravnborg.org>
To: Johannes Weiner <hannes@cmpxchg.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
        Gavin Shan <shangw@linux.vnet.ibm.com>,
        David Miller <davem@davemloft.net>, Yinghai Lu <yinghai@kernel.org>,
        Tejun Heo <tj@kernel.org>, linux-mm@kvack.org,
        linux-kernel@vger.kernel.org
Subject: Re: [patch 00/10] (no)bootmem bits for 3.5
Message-ID: <20120508175748.GA11906@merkur.ravnborg.org>
References: <1336390672-14421-1-git-send-email-hannes@cmpxchg.org> <20120507204113.GD10521@merkur.ravnborg.org> <20120507220142.GA1202@cmpxchg.org>
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On Tue, May 08, 2012 at 12:01:42AM +0200, Johannes Weiner wrote:
> On Mon, May 07, 2012 at 10:41:13PM +0200, Sam Ravnborg wrote:
> > Hi Johannes.
> > 
> > > here are some (no)bootmem fixes and cleanups for 3.5.  Most of it is
> > > unifying allocation behaviour across bootmem and nobootmem when it
> > > comes to respecting the specified allocation address goal and numa.
> > > 
> > > But also refactoring the codebases of the two bootmem APIs so that we
> > > can think about sharing code between them again.
> > 
> > Could you check up on CONFIG_HAVE_ARCH_BOOTMEM use in bootmem.c too?
> > x86 no longer uses bootmem.c
> > avr define it - but to n.
> > 
> > So no-one is actually using this anymore.
> > I have sent patches to remove it from Kconfig for both x86 and avr.
> > 
> > I looked briefly at cleaning up bootmem.c myslef - but I felt not
> > familiar enough with the code to do the cleanup.
> > 
> > I did not check your patchset - but based on the shortlog you
> > did not kill HAVE_ARCH_BOOTMEM.
> 
> It was used on x86-32 numa to try all bootmem allocations from node 0
> first (see only remaining definition of bootmem_arch_preferred_node),
> which AFAICS nobootmem no longer respects.
> 
> Shouldn't this be fixed instead?
I do not know. Tejun / Yinghai?

	Sam