linux-kernel - Re: [PATCH 1/4] mm, page_alloc: Split buffered

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Message-ID: <022201d26c81$4af8dc50$e0ea94f0$@alibaba-inc.com>
Date:   Thu, 12 Jan 2017 11:09:30 +0800
From:   "Hillf Danton" <hillf.zj@...baba-inc.com>
To:     "'Mel Gorman'" <mgorman@...hsingularity.net>,
        "'Jesper Dangaard Brouer'" <brouer@...hat.com>
Cc:     "'Linux Kernel'" <linux-kernel@...r.kernel.org>,
        "'Linux-MM'" <linux-mm@...ck.org>
Subject: Re: [PATCH 1/4] mm, page_alloc: Split buffered_rmqueue

On Tuesday, January 10, 2017 12:35 AM Mel Gorman wrote: 
> 
> buffered_rmqueue removes a page from a given zone and uses the per-cpu
> list for order-0. This is fine but a hypothetical caller that wanted
> multiple order-0 pages has to disable/reenable interrupts multiple
> times. This patch structures buffere_rmqueue such that it's relatively
> easy to build a bulk order-0 page allocator. There is no functional
> change.
> 
> Signed-off-by: Mel Gorman <mgorman@...hsingularity.net>
> ---
Acked-by: Hillf Danton <hillf.zj@...baba-inc.com>