linux-kernel - Re: [PATCH v2 4/6] mm: kmem: switch to nr_pages in (__)memcg_kmem_charge

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Message-ID: <20200116172451.GD57074@cmpxchg.org>
Date:   Thu, 16 Jan 2020 12:24:51 -0500
From:   Johannes Weiner <hannes@...xchg.org>
To:     Roman Gushchin <guro@...com>
Cc:     linux-mm@...ck.org, Andrew Morton <akpm@...ux-foundation.org>,
        Michal Hocko <mhocko@...nel.org>,
        Shakeel Butt <shakeelb@...gle.com>,
        Vladimir Davydov <vdavydov.dev@...il.com>,
        linux-kernel@...r.kernel.org, kernel-team@...com
Subject: Re: [PATCH v2 4/6] mm: kmem: switch to nr_pages in
 (__)memcg_kmem_charge_memcg()

On Thu, Jan 09, 2020 at 12:26:57PM -0800, Roman Gushchin wrote:
> These functions are charging the given number of kernel pages to the
> given memory cgroup. The number doesn't have to be a power of two.
> Let's make them to take the unsigned int nr_pages as an argument
> instead of the page order.
> 
> It makes them look consistent with the corresponding uncharge
> functions and functions like: mem_cgroup_charge_skmem(memcg, nr_pages).
> 
> Signed-off-by: Roman Gushchin <guro@...com>

Acked-by: Johannes Weiner <hannes@...xchg.org>