linux-kernel - Re: [PATCH v2 4/6] arm64: Add set_pud

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Date:   Fri, 2 Oct 2020 18:11:01 -0400
From:   Kalesh Singh <kaleshsingh@...gle.com>
To:     "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>
Cc:     Suren Baghdasaryan <surenb@...gle.com>,
        Minchan Kim <minchan@...gle.com>,
        Joel Fernandes <joelaf@...gle.com>,
        Lokesh Gidra <lokeshgidra@...gle.com>,
        "Cc: Android Kernel" <kernel-team@...roid.com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "the arch/x86 maintainers" <x86@...nel.org>,
        "H. Peter Anvin" <hpa@...or.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Shuah Khan <shuah@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        "Aneesh Kumar K.V" <aneesh.kumar@...ux.ibm.com>,
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        Masami Hiramatsu <mhiramat@...nel.org>,
        Jason Gunthorpe <jgg@...pe.ca>,
        SeongJae Park <sjpark@...zon.de>,
        LKML <linux-kernel@...r.kernel.org>,
        "moderated list:ARM64 PORT (AARCH64 ARCHITECTURE)" 
        <linux-arm-kernel@...ts.infradead.org>,
        "open list:MEMORY MANAGEMENT" <linux-mm@...ck.org>,
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        <linux-kselftest@...r.kernel.org>
Subject: Re: [PATCH v2 4/6] arm64: Add set_pud_at() function

On Fri, Oct 2, 2020 at 12:52 PM Kirill A. Shutemov
<kirill.shutemov@...ux.intel.com> wrote:
>
> On Fri, Oct 02, 2020 at 04:20:49PM +0000, Kalesh Singh wrote:
> > set_pud_at() is used in move_normal_pud() for remapping
> > pages at the PUD level.
> >
> > Signed-off-by: Kalesh Singh <kaleshsingh@...gle.com>
> > ---
> >  arch/arm64/include/asm/pgtable.h | 1 +
> >  1 file changed, 1 insertion(+)
> >
> > diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
> > index d5d3fbe73953..8848125e3024 100644
> > --- a/arch/arm64/include/asm/pgtable.h
> > +++ b/arch/arm64/include/asm/pgtable.h
> > @@ -415,6 +415,7 @@ static inline pmd_t pmd_mkdevmap(pmd_t pmd)
> >  #define pfn_pud(pfn,prot)    __pud(__phys_to_pud_val((phys_addr_t)(pfn) << PAGE_SHIFT) | pgprot_val(prot))
> >
> >  #define set_pmd_at(mm, addr, pmdp, pmd)      set_pte_at(mm, addr, (pte_t *)pmdp, pmd_pte(pmd))
> > +#define set_pud_at(mm, addr, pudp, pud)      set_pte_at(mm, addr, (pte_t *)pudp, pud_pte(pud))
> >
> >  #define __p4d_to_phys(p4d)   __pte_to_phys(p4d_pte(p4d))
> >  #define __phys_to_p4d_val(phys)      __phys_to_pte_val(phys)
>
> Just fold it into the next patch.
Sounds good. I'll update in the next version. Thanks
>
> --
>  Kirill A. Shutemov
>
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