linux-kernel - Re: [PATCH v2 1/7] mm, page_alloc: clean up pageset high and batch update

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Message-ID: <20201025141704.GG392079@kernel.org>
Date:   Sun, 25 Oct 2020 16:17:04 +0200
From:   Mike Rapoport <rppt@...nel.org>
To:     Vlastimil Babka <vbabka@...e.cz>
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        Michal Hocko <mhocko@...nel.org>,
        Pavel Tatashin <pasha.tatashin@...een.com>,
        David Hildenbrand <david@...hat.com>,
        Oscar Salvador <osalvador@...e.de>,
        Joonsoo Kim <iamjoonsoo.kim@....com>,
        Michal Hocko <mhocko@...e.com>
Subject: Re: [PATCH v2 1/7] mm, page_alloc: clean up pageset high and batch
 update

On Thu, Oct 08, 2020 at 01:41:55PM +0200, Vlastimil Babka wrote:
> The updates to pcplists' high and batch valued are handled by multiple

Nit:                                     ^ values

> functions that make the calculations hard to follow. Consolidate everything
> to pageset_set_high_and_batch() and remove pageset_set_batch() and
> pageset_set_high() wrappers.
> 
> The only special case using one of the removed wrappers was:
> build_all_zonelists_init()
>   setup_pageset()
>     pageset_set_batch()
> which was hardcoding batch as 0, so we can just open-code a call to
> pageset_update() with constant parameters instead.
> 
> No functional change.
> 
> Signed-off-by: Vlastimil Babka <vbabka@...e.cz>
> Reviewed-by: Oscar Salvador <osalvador@...e.de>
> Reviewed-by: David Hildenbrand <david@...hat.com>
> Acked-by: Michal Hocko <mhocko@...e.com>
> ---
>  mm/page_alloc.c | 49 ++++++++++++++++++++-----------------------------
>  1 file changed, 20 insertions(+), 29 deletions(-)
 
--
Sincerely yours,
Mike.