From: Shakeel Butt <shakeelb@google.com>
To: "T.J. Mercier" <tjmercier@google.com>
Cc: "Tejun Heo" <tj@kernel.org>, "Zefan Li" <lizefan.x@bytedance.com>,
"Johannes Weiner" <hannes@cmpxchg.org>,
"Jonathan Corbet" <corbet@lwn.net>,
"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
"Arve Hjønnevåg" <arve@android.com>,
"Todd Kjos" <tkjos@android.com>,
"Martijn Coenen" <maco@android.com>,
"Joel Fernandes" <joel@joelfernandes.org>,
"Christian Brauner" <brauner@kernel.org>,
"Carlos Llamas" <cmllamas@google.com>,
"Suren Baghdasaryan" <surenb@google.com>,
"Sumit Semwal" <sumit.semwal@linaro.org>,
"Christian König" <christian.koenig@amd.com>,
"Michal Hocko" <mhocko@kernel.org>,
"Roman Gushchin" <roman.gushchin@linux.dev>,
"Muchun Song" <muchun.song@linux.dev>,
"Andrew Morton" <akpm@linux-foundation.org>,
"Paul Moore" <paul@paul-moore.com>,
"James Morris" <jmorris@namei.org>,
"Serge E. Hallyn" <serge@hallyn.com>,
"Stephen Smalley" <stephen.smalley.work@gmail.com>,
"Eric Paris" <eparis@parisplace.org>,
android-mm@google.com, jstultz@google.com,
cgroups@vger.kernel.org, linux-doc@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-media@vger.kernel.org,
dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org,
linux-mm@kvack.org, linux-security-module@vger.kernel.org,
selinux@vger.kernel.org, daniel.vetter@ffwll.ch
Subject: Re: [PATCH 0/4] Track exported dma-buffers with memcg
Date: Thu, 12 Jan 2023 08:13:37 +0000 [thread overview]
Message-ID: <20230112081337.fxgnhdk44mxu26et@google.com> (raw)
In-Reply-To: <CABdmKX0TAv=iRz0s+F6dVVX=xsK00BeUPkRM4bnsfemDAY9U4w@mail.gmail.com>
On Wed, Jan 11, 2023 at 04:49:36PM -0800, T.J. Mercier wrote:
>
[...]
> > The problem is a bit that with gpu allocations reclaim is essentially "we
> > pass the error to userspace and they get to sort the mess out". There are
> > some exceptions (some gpu drivers to have shrinkers) would we need to make
> > sure these shrinkers are tied into the cgroup stuff before we could enable
> > charging for them?
> >
> I'm also not sure that we can depend on the dmabuf being backed at
> export time 100% of the time? (They are for dmabuf heaps.) If not,
> that'd make calling the existing memcg folio based functions a bit
> difficult.
>
Where does the actual memory get allocated? I see the first patch is
updating the stat in dma_buf_export() and dma_buf_release(). Does the
memory get allocated and freed in those code paths?
next prev parent reply other threads:[~2023-01-12 8:13 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-09 21:38 [PATCH 0/4] Track exported dma-buffers with memcg T.J. Mercier
2023-01-09 21:38 ` [PATCH 1/4] memcg: Track exported dma-buffers T.J. Mercier
2023-01-10 8:58 ` Michal Hocko
2023-01-10 19:08 ` T.J. Mercier
2023-01-09 21:38 ` [PATCH 2/4] dmabuf: Add cgroup charge transfer function T.J. Mercier
2023-01-09 21:38 ` [PATCH 3/4] binder: Add flags to relinquish ownership of fds T.J. Mercier
[not found] ` <20230110014720.281-1-hdanton@sina.com>
2023-01-10 21:20 ` T.J. Mercier
2023-01-20 21:25 ` Carlos Llamas
2023-01-20 21:52 ` T.J. Mercier
2023-01-09 21:38 ` [PATCH 4/4] security: binder: Add transfer_charge SElinux hook T.J. Mercier
2023-01-09 22:28 ` Casey Schaufler
2023-01-10 0:30 ` T.J. Mercier
2023-01-10 19:39 ` Casey Schaufler
2023-01-12 0:21 ` T.J. Mercier
2023-01-10 0:13 ` kernel test robot
2023-01-10 0:14 ` kernel test robot
2023-01-11 23:00 ` Paul Moore
2023-01-12 0:21 ` T.J. Mercier
2023-01-12 20:45 ` Paul Moore
2023-01-12 21:36 ` T.J. Mercier
2023-01-12 21:54 ` Paul Moore
2023-01-10 0:18 ` [PATCH 0/4] Track exported dma-buffers with memcg Shakeel Butt
2023-01-11 22:56 ` Daniel Vetter
2023-01-12 0:49 ` T.J. Mercier
2023-01-12 8:13 ` Shakeel Butt [this message]
2023-01-12 8:17 ` Christian König
2023-01-12 7:56 ` Shakeel Butt
2023-01-12 10:25 ` Michal Hocko
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