linux-kernel - Re: [PATCH 2/5] ANDROID: dma-buf: heaps: Add a shrinker controlled page pool

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Message-ID: <20220803124003.jftyp7zj2rnruhsc@000377403353>
Date:   Wed, 3 Aug 2022 13:40:03 +0100
From:   Brian Starkey <brian.starkey@....com>
To:     Olivier Masse <olivier.masse@....com>
Cc:     sumit.semwal@...aro.org, benjamin.gaignard@...labora.com,
        christian.koenig@....com, linux-media@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, linaro-mm-sig@...ts.linaro.org,
        linux-kernel@...r.kernel.org, clement.faure@....com, nd@....com
Subject: Re: [PATCH 2/5] ANDROID: dma-buf: heaps: Add a shrinker controlled
 page pool

Hi Olivier,

On Tue, Aug 02, 2022 at 11:58:40AM +0200, Olivier Masse wrote:
> From: John Stultz <john.stultz@...aro.org>
> 
> This patch adds a simple shrinker controlled page pool to the
> dmabuf heaps subsystem.
> 
> This replaces the use of the networking page_pool, over concerns
> that the lack of a shrinker for that implementation may cause
> additional low-memory kills
> 
> TODO: Take another pass at trying to unify this w/ the ttm pool
> 
> Thoughts and feedback would be greatly appreciated!

Did I miss something, or is this not actually used anywhere?

Thanks,
-Brian