Re: [PATCH V2] arm64/mm: Add pud_sect_supported()
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From: Anshuman Khandual <hidden>
Date: 2021-09-22 04:43:47
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On 9/20/21 9:11 PM, Catalin Marinas wrote:
On Mon, Sep 20, 2021 at 02:59:31PM +0530, Anshuman Khandual wrote:quoted
Section mapping at PUD level is supported only on 4K pages and currently it gets verified with explicit #ifdef or IS_ENABLED() constructs. This adds a new helper pud_sect_supported() for this purpose, which particularly cleans up the HugeTLB code path. It updates relevant switch statements with checks for __PAGETABLE_PMD_FOLDED in order to avoid build failures caused with two identical switch case values in those code blocks. Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Suggested-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Anshuman Khandual <redacted>Assuming that you tested the corresponding configurations,
Right, I did test this on all page size and VA bits configurations , including the specific ones which were problematic.
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
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