Re: [PATCH v5] kasan: speed up mte_set_mem_tag_range
From: Will Deacon <will@kernel.org>
Date: 2021-05-25 18:59:11
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On Thu, 20 May 2021 18:00:23 -0700, Evgenii Stepanov wrote:
Use DC GVA / DC GZVA to speed up KASan memory tagging in HW tags mode. The first cacheline is always tagged using STG/STZG even if the address is cacheline-aligned, as benchmarks show it is faster than a conditional branch.
Applied to arm64 (for-next/mte), thanks!
[1/1] kasan: speed up mte_set_mem_tag_range
https://git.kernel.org/arm64/c/3d0cca0b02ac
Cheers,
--
Will
https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev
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