linux-kernel - Re: [PATCH v3 1/3] mm: rename alloc_pages_exact_node to __alloc_pages

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Date:	Thu, 30 Jul 2015 15:07:25 -0500 (CDT)
From:	Christoph Lameter <cl@...ux.com>
To:	Vlastimil Babka <vbabka@...e.cz>
cc:	linux-mm@...ck.org, Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, Mel Gorman <mgorman@...e.de>,
	David Rientjes <rientjes@...gle.com>,
	Greg Thelen <gthelen@...gle.com>,
	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>,
	Pekka Enberg <penberg@...nel.org>,
	Joonsoo Kim <iamjoonsoo.kim@....com>,
	Naoya Horiguchi <n-horiguchi@...jp.nec.com>,
	Johannes Weiner <hannes@...xchg.org>,
	linux-ia64@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
	cbe-oss-dev@...ts.ozlabs.org, kvm@...r.kernel.org,
	Tony Luck <tony.luck@...el.com>,
	Fenghua Yu <fenghua.yu@...el.com>,
	Arnd Bergmann <arnd@...db.de>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Paul Mackerras <paulus@...ba.org>,
	Gleb Natapov <gleb@...nel.org>,
	Paolo Bonzini <pbonzini@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, Cliff Whickman <cpw@....com>,
	Michael Ellerman <mpe@...erman.id.au>,
	Robin Holt <robinmholt@...il.com>
Subject: Re: [PATCH v3 1/3] mm: rename alloc_pages_exact_node to
 __alloc_pages_node

On Thu, 30 Jul 2015, Vlastimil Babka wrote:

> > NAK. This is changing slob behavior. With no node specified it must use
> > alloc_pages because that obeys NUMA memory policies etc etc. It should not
> > force allocation from the current node like what is happening here after
> > the patch. See the code in slub.c that is similar.
>
> Doh, somehow I convinced myself that there's #else and alloc_pages() is only
> used for !CONFIG_NUMA so it doesn't matter. Here's a fixed version.

Acked-by: Christoph Lameter <cl@...ux.com>
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