Re: [PATCH v2 1/4] mm: refactoring TLB gathering API

From: Mel Gorman
Date: Tue Aug 01 2017 - 06:31:06 EST

On Tue, Aug 01, 2017 at 02:56:14PM +0900, Minchan Kim wrote:
> This patch is ready for solving race problems caused by TLB batch.

s/is ready/is a preparatory patch/

> For that, we will increase/decrease TLB flush pending count of
> mm_struct whenever tlb_[gather|finish]_mmu is called.
> Before making it simple, this patch separates architecture specific
> part and rename it to arch_tlb_[gather|finish]_mmu and generic part
> just calls it.
> It shouldn't change any behavior.
> Cc: Ingo Molnar <mingo@xxxxxxxxxx>
> Cc: Russell King <linux@xxxxxxxxxxxxxxx>
> Cc: Tony Luck <tony.luck@xxxxxxxxx>
> Cc: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
> Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
> Cc: Heiko Carstens <heiko.carstens@xxxxxxxxxx>
> Cc: Yoshinori Sato <ysato@xxxxxxxxxxxxxxxxxxxx>
> Cc: Jeff Dike <jdike@xxxxxxxxxxx>
> Cc: linux-arch@xxxxxxxxxxxxxxx
> Cc: Nadav Amit <nadav.amit@xxxxxxxxx>
> Cc: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Minchan Kim <minchan@xxxxxxxxxx>

You could alias arch_generic_tlb_finish_mmu as arch_tlb_gather_mmu
simiilar to how other arch-generic helpers are done to avoid some
#ifdeffery but otherwise

Acked-by: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx>

Mel Gorman