linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Kefeng Wang <wangkefeng.wang@huawei.com>
To: Mike Rapoport <rppt@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>,
	Ard Biesheuvel <ardb@kernel.org>,
	Catalin Marinas <catalin.marinas@arm.com>,
	"David Hildenbrand" <david@redhat.com>,
	Marc Zyngier <maz@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Mike Rapoport <rppt@linux.ibm.com>, Will Deacon <will@kernel.org>,
	<kvmarm@lists.cs.columbia.edu>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>, <linux-mm@kvack.org>
Subject: Re: [PATCH v4 0/4] arm64: drop pfn_valid_within() and simplify pfn_valid()
Date: Wed, 12 May 2021 11:13:28 +0800	[thread overview]
Message-ID: <b4b384c1-0d45-bb7f-3bd4-56cdb15ff2f8@huawei.com> (raw)
In-Reply-To: <20210511100550.28178-1-rppt@kernel.org>



On 2021/5/11 18:05, Mike Rapoport wrote:
> From: Mike Rapoport <rppt@linux.ibm.com>
> 
> Hi,
> 
> These patches aim to remove CONFIG_HOLES_IN_ZONE and essentially hardwire
> pfn_valid_within() to 1.
> 
> The idea is to mark NOMAP pages as reserved in the memory map and restore
> the intended semantics of pfn_valid() to designate availability of struct
> page for a pfn.
> 
> With this the core mm will be able to cope with the fact that it cannot use
> NOMAP pages and the holes created by NOMAP ranges within MAX_ORDER blocks
> will be treated correctly even without the need for pfn_valid_within.
> 
> The patches are boot tested on qemu-system-aarch64.
> 
> I beleive it would be best to route these via mmotm tree.

Reviewed-by: Kefeng Wang <wangkefeng.wang@huawei.com>

  parent reply	other threads:[~2021-05-12  3:13 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-11 10:05 Mike Rapoport
2021-05-11 10:05 ` [PATCH v4 1/4] include/linux/mmzone.h: add documentation for pfn_valid() Mike Rapoport
2021-05-11 10:22   ` Ard Biesheuvel
2021-05-11 10:05 ` [PATCH v4 2/4] memblock: update initialization of reserved pages Mike Rapoport
2021-05-11 10:23   ` Ard Biesheuvel
2021-05-11 10:05 ` [PATCH v4 3/4] arm64: decouple check whether pfn is in linear map from pfn_valid() Mike Rapoport
2021-05-11 10:25   ` Ard Biesheuvel
2021-05-11 10:05 ` [PATCH v4 4/4] arm64: drop pfn_valid_within() and simplify pfn_valid() Mike Rapoport
2021-05-11 10:26   ` Ard Biesheuvel
2021-05-11 23:40   ` Andrew Morton
2021-05-12  5:31     ` Mike Rapoport
2021-05-12  3:13 ` Kefeng Wang [this message]
2021-05-12  7:00 ` [PATCH v4 0/4] " Ard Biesheuvel
2021-05-12  7:33   ` Mike Rapoport
2021-05-12  7:59     ` Ard Biesheuvel
2021-05-12  8:32       ` Mike Rapoport

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=b4b384c1-0d45-bb7f-3bd4-56cdb15ff2f8@huawei.com \
    --to=wangkefeng.wang@huawei.com \
    --cc=akpm@linux-foundation.org \
    --cc=anshuman.khandual@arm.com \
    --cc=ardb@kernel.org \
    --cc=catalin.marinas@arm.com \
    --cc=david@redhat.com \
    --cc=kvmarm@lists.cs.columbia.edu \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=mark.rutland@arm.com \
    --cc=maz@kernel.org \
    --cc=rppt@kernel.org \
    --cc=rppt@linux.ibm.com \
    --cc=will@kernel.org \
    --subject='Re: [PATCH v4 0/4] arm64: drop pfn_valid_within() and simplify pfn_valid()' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
on how to clone and mirror all data and code used for this inbox