Re: [PATCH 09/11] mm, compaction: Abstract compaction feedback to helpers

[Vlastimil Babka]

On 04/11/2016 05:40 PM, Michal Hocko wrote:
> Hi Andrew,
> Vlastimil has pointed out[1] that using compaction_withdrawn() for THP
> allocations has some non-trivial consequences. While I still think that
> the check is OK it is true we shouldn't sneak in a potential behavior
> change into something that basically provides an API. So can you fold
> the following partial revert into the original patch please?
>
> [1] http://lkml.kernel.org/r/570BB719.2030007@xxxxxxx
>
> ---
>  From 71ddeee4238e33d67ef07883e73f946a7cc40e73 Mon Sep 17 00:00:00 2001
> From: Michal Hocko <mhocko@xxxxxxxx>
> Date: Mon, 11 Apr 2016 17:38:22 +0200
> Subject: [PATCH] ction-abstract-compaction-feedback-to-helpers-fix
>
> Preserve the original thp back off checks to not introduce any
> functional changes as per Vlastimil.
>
> Signed-off-by: Michal Hocko <mhocko@xxxxxxxx>

Ack, thanks.