linux-kernel - Re: [PATCH 0/2 V6]Add dma-buf counter

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Message-ID: <YH6RDgoJTPWsULDs@dhcp22.suse.cz>
Date:   Tue, 20 Apr 2021 10:30:06 +0200
From:   Michal Hocko <mhocko@...e.com>
To:     Peter Enderborg <peter.enderborg@...y.com>
Cc:     linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        Sumit Semwal <sumit.semwal@...aro.org>,
        Christian König <christian.koenig@....com>,
        Alexey Dobriyan <adobriyan@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Muchun Song <songmuchun@...edance.com>,
        Roman Gushchin <guro@...com>,
        Shakeel Butt <shakeelb@...gle.com>, NeilBrown <neilb@...e.de>,
        Sami Tolvanen <samitolvanen@...gle.com>,
        Mike Rapoport <rppt@...nel.org>, linux-media@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, linaro-mm-sig@...ts.linaro.org,
        Matthew Wilcox <willy@...radead.org>,
        Jonathan Corbet <corbet@....net>,
        Randy Dunlap <rdunlap@...radead.org>,
        Kees Cook <keescook@...omium.org>,
        Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        Alexey Gladkov <gladkov.alexey@...il.com>,
        Feng Tang <feng.tang@...el.com>, linux-doc@...r.kernel.org
Subject: Re: [PATCH 0/2 V6]Add dma-buf counter

On Tue 20-04-21 10:22:18, Peter Enderborg wrote:
> The dma-buf counter is a metric for mapped memory used by it's clients.
> It is a shared buffer that is typically used for interprocess communication
> or process to hardware communication. In android we used to have ION,. but
> it is now replaced with dma-buf. ION had some overview metrics that was similar.

The discussion around the previous version is still not over and as it
seems your proposed approach is not really viable. So please do not send
new versions until that is sorted out.

Thanks!
-- 
Michal Hocko
SUSE Labs