Re: [PATCH v2] arm64/mm: Hoist synchronization out of set_ptes() loop

[Catalin Marinas]

On Thu, 05 Oct 2023 15:07:30 +0100, Ryan Roberts wrote:
> set_ptes() sets a physically contiguous block of memory (which all
> belongs to the same folio) to a contiguous block of ptes. The arm64
> implementation of this previously just looped, operating on each
> individual pte. But the __sync_icache_dcache() and mte_sync_tags()
> operations can both be hoisted out of the loop so that they are
> performed once for the contiguous set of pages (which may be less than
> the whole folio). This should result in minor performance gains.
> 
> [...]

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

[1/1] arm64/mm: Hoist synchronization out of set_ptes() loop
      https://git.kernel.org/arm64/c/3425cec42c3c

Also pushed the fix to mark 'addr' __always_unused.

-- 
Catalin