linux-kernel - Re: [PATCH] arm64/mm: Remove [PUD|PMD]_TABLE_BIT from [pud|pmd]

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Message-Id: <162196589876.2316489.9040188054395172704.b4-ty@kernel.org>
Date:   Tue, 25 May 2021 19:58:42 +0100
From:   Will Deacon <will@...nel.org>
To:     Anshuman Khandual <anshuman.khandual@....com>,
        linux-arm-kernel@...ts.infradead.org
Cc:     catalin.marinas@....com, kernel-team@...roid.com,
        Will Deacon <will@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64/mm: Remove [PUD|PMD]_TABLE_BIT from [pud|pmd]_bad()

On Mon, 10 May 2021 16:37:51 +0530, Anshuman Khandual wrote:
> Semantics wise, [pud|pmd]_bad() have always implied that a given [PUD|PMD]
> entry does not have a pointer to the next level page table. This had been
> made clear in the commit a1c76574f345 ("arm64: mm: use *_sect to check for
> section maps"). Hence explicitly check for a table entry rather than just
> testing a single bit. This basically redefines [pud|pmd]_bad() in terms of
> [pud|pmd]_table() making the semantics clear.

Applied to arm64 (for-next/mm), thanks!

[1/1] arm64/mm: Remove [PUD|PMD]_TABLE_BIT from [pud|pmd]_bad()
      https://git.kernel.org/arm64/c/e377ab82311a

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev