linux-kernel - Re: [RFC] mm: fix a BUG, the page is allocated 2 times

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Message-Id: <71CD787F-57A8-4F95-9D16-BA73E1F87FE1@gmail.com>
Date:	Tue, 13 Oct 2015 09:43:11 +0800
From:	yalin wang <yalin.wang2010@...il.com>
To:	Mel Gorman <mgorman@...hsingularity.net>
Cc:	akpm@...ux-foundation.org, vbabka@...e.cz, mhocko@...e.com,
	rientjes@...gle.com, js1304@...il.com,
	kirill.shutemov@...ux.intel.com, hannes@...xchg.org,
	alexander.h.duyck@...hat.com, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [RFC] mm: fix a BUG, the page is allocated 2 times


> On Oct 12, 2015, at 21:52, Mel Gorman <mgorman@...hsingularity.net> wrote:
> 
> There is a redundant check and a memory leak introduced by a patch in
> mmotm. This patch removes an unlikely(order) check as we are sure order
> is not zero at the time. It also checks if a page is already allocated
> to avoid a memory leak.
> 
> This is a fix to the mmotm patch
> mm-page_alloc-reserve-pageblocks-for-high-order-atomic-allocations-on-demand.patch
> 
> Signed-off-by: yalin wang <yalin.wang2010@...il.com>
> Acked-by: Mel Gorman <mgorman@...hsingularity.net>
no problem,
i have send the patch again using your change log .

Thanks--
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