linux-kernel - Re: [PATCH 0/2] arm64: mm: fix kdump broken with ZONE

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Message-ID: <20210120130741.GB2642@gaia>
Date:   Wed, 20 Jan 2021 13:07:41 +0000
From:   Catalin Marinas <catalin.marinas@....com>
To:     Will Deacon <will@...nel.org>
Cc:     Chen Zhou <chenzhou10@...wei.com>, ardb@...nel.org,
        akpm@...ux-foundation.org, rppt@...nel.org, nsaenzjulienne@...e.de,
        song.bao.hua@...ilicon.com, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, huawei.libin@...wei.com,
        xiexiuqi@...wei.com
Subject: Re: [PATCH 0/2] arm64: mm: fix kdump broken with ZONE_DMA
 reintroduced

On Wed, Jan 20, 2021 at 12:40:55PM +0000, Will Deacon wrote:
> On Sat, Dec 26, 2020 at 11:35:55AM +0800, Chen Zhou wrote:
> > If the memory reserved for crash dump kernel falled in ZONE_DMA32,
> > the devices in crash dump kernel need to use ZONE_DMA will alloc fail.
> >            
> > Fix this by reserving low memory in ZONE_DMA if CONFIG_ZONE_DMA is
> > enabled, otherwise, reserving in ZONE_DMA32.
> > 
> > Patch 1 updates the comments about the ZONE_DMA.
> > Patch 2 fix kdump broken.
> > 
> > Chen Zhou (2):
> >   arm64: mm: update the comments about ZONE_DMA
> >   arm64: mm: fix kdump broken with ZONE_DMA reintroduced
> 
> Please can you repost this if it is still needed after the changes that
> landed in -rc4?

I don't think this series is needed anymore but I'll let Chen confirm.

-- 
Catalin