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From: Pekka Enberg <penberg@kernel.org>
To: Jiang Liu <liuj97@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	David Rientjes <rientjes@google.com>,
	Jiang Liu <jiang.liu@huawei.com>,
	Wen Congyang <wency@cn.fujitsu.com>, Mel Gorman <mgorman@suse.de>,
	Minchan Kim <minchan@kernel.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
	Michal Hocko <mhocko@suse.cz>, Jianguo Wu <wujianguo@huawei.com>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
	x86@kernel.org, Cong Wang <amwang@redhat.com>,
	Yinghai Lu <yinghai@kernel.org>,
	Attilio Rao <attilio.rao@citrix.com>,
	konrad.wilk@oracle.com
Subject: Re: [PATCH v2, part2 10/10] mm/x86: use free_highmem_page() to free highmem pages into buddy system
Date: Sun, 10 Mar 2013 12:40:49 +0200	[thread overview]
Message-ID: <CAOJsxLGmsLdVxab6HMNXbfbCARna+9e0e4q=PS9nQC+bMXokeg@mail.gmail.com> (raw)
In-Reply-To: <CAOJsxLHoWGo+B9w-Vmxdv_YWneEqN0U_2cSuvM7H4U67sfFksg@mail.gmail.com>

On Sun, Mar 10, 2013 at 12:32 PM, Pekka Enberg <penberg@kernel.org> wrote:
> On Sun, Mar 10, 2013 at 10:01 AM, Jiang Liu <liuj97@gmail.com> wrote:
>> Use helper function free_highmem_page() to free highmem pages into
>> the buddy system.
>>
>> Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
>> ---
>>  arch/x86/mm/highmem_32.c |    1 -
>>  arch/x86/mm/init_32.c    |   10 +---------
>>  2 files changed, 1 insertion(+), 10 deletions(-)
>>
>> diff --git a/arch/x86/mm/highmem_32.c b/arch/x86/mm/highmem_32.c
>> index 6f31ee5..252b8f5 100644
>> --- a/arch/x86/mm/highmem_32.c
>> +++ b/arch/x86/mm/highmem_32.c
>> @@ -137,5 +137,4 @@ void __init set_highmem_pages_init(void)
>>                 add_highpages_with_active_regions(nid, zone_start_pfn,
>>                                  zone_end_pfn);
>>         }
>> -       totalram_pages += totalhigh_pages;
>
> Hmm? I haven't looked at what totalram_pages is used for but could you
> explain why this change is safe?

Never mind, I should have read the patchset more carefully:

Reviewed-by: Pekka Enberg <penberg@kernel.org>

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      reply	other threads:[~2013-03-10 10:40 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-03-10  8:01 [PATCH v2, part2 00/10] simplify initialization of highmem pages Jiang Liu
2013-03-10  8:01 ` [PATCH v2, part2 01/10] mm: introduce free_highmem_page() helper to free highmem pages into buddy system Jiang Liu
2013-03-10 10:44   ` Pekka Enberg
2013-03-10  8:01 ` [PATCH v2, part2 02/10] mm/ARM: use free_highmem_page() " Jiang Liu
2013-03-10  8:01 ` [PATCH v2, part2 03/10] mm/FRV: " Jiang Liu
2013-03-10  8:01 ` [PATCH v2, part2 04/10] mm/metag: " Jiang Liu
2013-03-10  8:01 ` [PATCH v2, part2 05/10] mm/microblaze: " Jiang Liu
2013-03-10  8:01 ` [PATCH v2, part2 06/10] mm/MIPS: " Jiang Liu
2013-03-10  8:01 ` [PATCH v2, part2 07/10] mm/PPC: " Jiang Liu
2013-03-10  8:01 ` [PATCH v2, part2 08/10] mm/SPARC: " Jiang Liu
2013-03-12 21:42   ` Andrew Morton
2013-03-13  6:34     ` Sam Ravnborg
2013-03-13 16:47     ` Jiang Liu
2013-03-10  8:01 ` [PATCH v2, part2 09/10] mm/um: " Jiang Liu
2013-03-10  8:01 ` [PATCH v2, part2 10/10] mm/x86: " Jiang Liu
2013-03-10 10:32   ` Pekka Enberg
2013-03-10 10:40     ` Pekka Enberg [this message]

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