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Date:   Sat, 12 Nov 2022 18:26:42 +0800
From:   Huacai Chen <chenhuacai@...nel.org>
To:     Huacai Chen <chenhuacai@...ngson.cn>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Andy Lutomirski <luto@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Dinh Nguyen <dinguyen@...nel.org>, loongarch@...ts.linux.dev,
        linux-arch@...r.kernel.org, Xuefeng Li <lixuefeng@...ngson.cn>,
        Guo Ren <guoren@...nel.org>, Xuerui Wang <kernel@...0n.name>,
        Jiaxun Yang <jiaxun.yang@...goat.com>,
        Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
        linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        Feiyang Chen <chenfeiyang@...ngson.cn>
Subject: Re: [PATCH V14 0/4] mm/sparse-vmemmap: Generalise helpers and enable
 for LoongArch

Hi, Arnd,

Just a gentle ping, is this series good enough now? I think the last
problem (static-key.h inclusion) has also been solved.


Huacai

On Thu, Oct 27, 2022 at 8:54 PM Huacai Chen <chenhuacai@...ngson.cn> wrote:
>
> This series is in order to enable sparse-vmemmap for LoongArch. But
> LoongArch cannot use generic helpers directly because MIPS&LoongArch
> need to call pgd_init()/pud_init()/pmd_init() when populating page
> tables. So we adjust the prototypes of p?d_init() to make generic
> helpers can call them, then enable sparse-vmemmap with generic helpers,
> and to be further, generalise vmemmap_populate_hugepages() for ARM64,
> X86 and LoongArch.
>
> V1 -> V2:
> Split ARCH_WANT_HUGETLB_PAGE_OPTIMIZE_VMEMMAP to a separate patch.
>
> V2 -> V3:
> 1, Change the Signed-off-by order of author and committer;
> 2, Update commit message about the build error on LoongArch.
>
> V3 -> V4:
> Change pmd to pmdp for ARM64 for consistency.
>
> V4 -> V5:
> Add a detailed comment for no-fallback in the altmap case.
>
> V5 -> V6:
> 1, Fix build error for NIOS2;
> 2, Fix build error for allnoconfig;
> 3, Update comment for no-fallback in the altmap case.
>
> V6 -> V7:
> Fix build warnings of "no previous prototype".
>
> V7 -> V8:
> Fix build error for MIPS pud_init().
>
> V8 -> V9:
> Remove redundant #include to avoid build error with latest upstream
> kernel.
>
> V9 -> V10:
> Fix build error due to VMEMMAP changes in 6.0-rc1.
>
> V10 -> V11:
> Adjust context due to ARM64 changes in 6.1-rc1.
>
> V11 -> V12:
> 1, Fix build error for !SPARSEMEM;
> 2, Simplify pagetable_init() for MIPS32.
>
> V12 -> V13:
> 1, Add Acked-by and Reviewed-by tags;
> 2, Update commit message for the 4th patch.
>
> V13 -> V14:
> Remove the static_key.h inclusion in the 4th patch.
>
> Huacai Chen and Feiyang Chen(4):
>  MIPS&LoongArch&NIOS2: Adjust prototypes of p?d_init().
>  LoongArch: Add sparse memory vmemmap support.
>  mm/sparse-vmemmap: Generalise vmemmap_populate_hugepages().
>  LoongArch: Enable ARCH_WANT_HUGETLB_PAGE_OPTIMIZE_VMEMMAP.
>
> Signed-off-by: Huacai Chen <chenhuacai@...ngson.cn>
> Signed-off-by: Feiyang Chen <chenfeiyang@...ngson.cn>
> ---
>  arch/arm64/mm/mmu.c                    | 53 ++++++--------------
>  arch/loongarch/Kconfig                 |  2 +
>  arch/loongarch/include/asm/pgalloc.h   | 13 +----
>  arch/loongarch/include/asm/pgtable.h   | 13 +++--
>  arch/loongarch/include/asm/sparsemem.h |  8 +++
>  arch/loongarch/kernel/numa.c           |  4 +-
>  arch/loongarch/mm/init.c               | 44 +++++++++++++++-
>  arch/loongarch/mm/pgtable.c            | 23 +++++----
>  arch/mips/include/asm/pgalloc.h        |  8 +--
>  arch/mips/include/asm/pgtable-64.h     |  8 +--
>  arch/mips/kvm/mmu.c                    |  3 +-
>  arch/mips/mm/pgtable-32.c              | 10 ++--
>  arch/mips/mm/pgtable-64.c              | 18 ++++---
>  arch/mips/mm/pgtable.c                 |  2 +-
>  arch/x86/mm/init_64.c                  | 92 ++++++++++++----------------------
>  include/linux/mm.h                     |  8 +++
>  include/linux/page-flags.h             |  1 +
>  mm/sparse-vmemmap.c                    | 64 +++++++++++++++++++++++
>  18 files changed, 222 insertions(+), 152 deletions(-)
> --
> 2.27.0
>

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