linux-kernel - Re: [RFC v3 8/8] selftests: Add binder cgroup gpu memory transfer test

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Message-ID: <20220322160709.rcbjgqdoar7lvbox@wittgenstein>
Date:   Tue, 22 Mar 2022 17:07:09 +0100
From:   Christian Brauner <brauner@...nel.org>
To:     Todd Kjos <tkjos@...gle.com>
Cc:     "T.J. Mercier" <tjmercier@...gle.com>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Jonathan Corbet <corbet@....net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Arve Hjønnevåg <arve@...roid.com>,
        Todd Kjos <tkjos@...roid.com>,
        Martijn Coenen <maco@...roid.com>,
        Joel Fernandes <joel@...lfernandes.org>,
        Hridya Valsaraju <hridya@...gle.com>,
        Suren Baghdasaryan <surenb@...gle.com>,
        Sumit Semwal <sumit.semwal@...aro.org>,
        Christian König <christian.koenig@....com>,
        Benjamin Gaignard <benjamin.gaignard@...aro.org>,
        Liam Mark <lmark@...eaurora.org>,
        Laura Abbott <labbott@...hat.com>,
        Brian Starkey <Brian.Starkey@....com>,
        John Stultz <john.stultz@...aro.org>,
        Tejun Heo <tj@...nel.org>, Zefan Li <lizefan.x@...edance.com>,
        Johannes Weiner <hannes@...xchg.org>,
        Shuah Khan <shuah@...nel.org>, kaleshsingh@...gle.com,
        Kenny.Ho@....com, dri-devel@...ts.freedesktop.org,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-media@...r.kernel.org, linaro-mm-sig@...ts.linaro.org,
        cgroups@...r.kernel.org, linux-kselftest@...r.kernel.org
Subject: Re: [RFC v3 8/8] selftests: Add binder cgroup gpu memory transfer
 test

On Mon, Mar 14, 2022 at 05:43:40PM -0700, Todd Kjos wrote:
> On Wed, Mar 9, 2022 at 8:53 AM T.J. Mercier <tjmercier@...gle.com> wrote:
> >
> > This test verifies that the cgroup GPU memory charge is transferred
> > correctly when a dmabuf is passed between processes in two different
> > cgroups and the sender specifies BINDER_BUFFER_FLAG_SENDER_NO_NEED in the
> > binder transaction data containing the dmabuf file descriptor.
> >
> > Signed-off-by: T.J. Mercier <tjmercier@...gle.com>
> 
> Reviewed-by: Todd Kjos <tkjos@...gle.com>
> for the binder driver interactions. Need Christian to take a look at
> the binderfs interactions.

Sorry, just saw this now. I'll take a look tomorrow!