linux-kernel - 答复: [PATCH] arm64: mm: free unused memmap for sparse memory model that define VMEMMAP

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Date:   Thu, 23 Jul 2020 03:28:31 +0000
From:   "liwei (CM)" <liwei213@...wei.com>
To:     Anshuman Khandual <anshuman.khandual@....com>,
        "catalin.marinas@....com" <catalin.marinas@....com>,
        "will@...nel.org" <will@...nel.org>
CC:     "Song Bao Hua (Barry Song)" <song.bao.hua@...ilicon.com>,
        sujunfei <sujunfei2@...ilicon.com>,
        "Xiaqing (A)" <saberlily.xia@...ilicon.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "steve.capper@....com" <steve.capper@....com>,
        "Chenfeng (puck)" <puck.chen@...ilicon.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "rppt@...ux.ibm.com" <rppt@...ux.ibm.com>,
        fengbaopeng <fengbaopeng2@...ilicon.com>,
        "nsaenzjulienne@...e.de" <nsaenzjulienne@...e.de>,
        butao <butao@...ilicon.com>
Subject: 答复: [PATCH] arm64: mm: free unused memmap for sparse memory model that define VMEMMAP



-----邮件原件-----
发件人: Anshuman Khandual [mailto:anshuman.khandual@....com] 
发送时间: 2020年7月23日 10:33
收件人: liwei (CM) <liwei213@...wei.com>; catalin.marinas@....com; will@...nel.org
抄送: Song Bao Hua (Barry Song) <song.bao.hua@...ilicon.com>; sujunfei <sujunfei2@...ilicon.com>; Xiaqing (A) <saberlily.xia@...ilicon.com>; linux-arm-kernel@...ts.infradead.org; steve.capper@....com; Chenfeng (puck) <puck.chen@...ilicon.com>; linux-kernel@...r.kernel.org; rppt@...ux.ibm.com; fengbaopeng <fengbaopeng2@...ilicon.com>; nsaenzjulienne@...e.de; butao <butao@...ilicon.com>
主题: Re: [PATCH] arm64: mm: free unused memmap for sparse memory model that define VMEMMAP



On 07/21/2020 01:02 PM, Wei Li wrote:
> For the memory hole, sparse memory model that define SPARSEMEM_VMEMMAP 
> do not free the reserved memory for the page map, this patch do it.
> 
> Signed-off-by: Wei Li <liwei213@...wei.com>
> Signed-off-by: Chen Feng <puck.chen@...ilicon.com>
> Signed-off-by: Xia Qing <saberlily.xia@...ilicon.com>
> ---
>  arch/arm64/mm/init.c | 81 
> +++++++++++++++++++++++++++++++++++++++++++++-------
>  1 file changed, 71 insertions(+), 10 deletions(-)

This patch does not compile on 5.8-rc6 with defconfig.

Hi,

We're working on patch v2 as soon as possible.

Thanks.