From: Roman Gushchin <roman.gushchin@linux.dev>
To: Martin KaFai Lau <martin.lau@linux.dev>
Cc: Andrii Nakryiko <andrii.nakryiko@gmail.com>,
linux-mm@kvack.org, bpf@vger.kernel.org,
Suren Baghdasaryan <surenb@google.com>,
Johannes Weiner <hannes@cmpxchg.org>,
Michal Hocko <mhocko@suse.com>,
David Rientjes <rientjes@google.com>,
Matt Bobrowski <mattbobrowski@google.com>,
Song Liu <song@kernel.org>,
Kumar Kartikeya Dwivedi <memxor@gmail.com>,
Alexei Starovoitov <ast@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v1 13/14] sched: psi: implement bpf_psi_create_trigger() kfunc
Date: Mon, 25 Aug 2025 09:56:52 -0700 [thread overview]
Message-ID: <87h5xvxru3.fsf@linux.dev> (raw)
In-Reply-To: <c1b71664-91c0-439c-9cae-7407fa5b0358@linux.dev> (Martin KaFai Lau's message of "Fri, 22 Aug 2025 12:57:20 -0700")
Martin KaFai Lau <martin.lau@linux.dev> writes:
> On 8/20/25 5:36 PM, Roman Gushchin wrote:
>> It will. Idk how big of a problem it is, given that the caller needs
>> a trusted reference to bpf_psi. Also, is there a simple way to constrain
>> it? Wdyt?
>
> The bpf qdisc has the kfunc filtering. Take a look at the
> bpf_qdisc_kfunc_filter in bpf_qdisc.c.
Thanks! I'll take a look.
next prev parent reply other threads:[~2025-08-25 16:57 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-18 17:01 [PATCH v1 00/14] mm: BPF OOM Roman Gushchin
2025-08-18 17:01 ` [PATCH v1 01/14] mm: introduce bpf struct ops for OOM handling Roman Gushchin
2025-08-19 4:09 ` Suren Baghdasaryan
2025-08-19 20:06 ` Roman Gushchin
2025-08-20 19:34 ` Suren Baghdasaryan
2025-08-20 19:52 ` Roman Gushchin
2025-08-20 20:01 ` Suren Baghdasaryan
2025-08-26 16:23 ` Amery Hung
2025-08-20 11:28 ` Kumar Kartikeya Dwivedi
2025-08-21 0:24 ` Roman Gushchin
2025-08-21 0:36 ` Kumar Kartikeya Dwivedi
2025-08-21 2:22 ` Roman Gushchin
2025-08-21 15:54 ` Suren Baghdasaryan
2025-08-22 19:27 ` Martin KaFai Lau
2025-08-25 17:00 ` Roman Gushchin
2025-08-26 18:01 ` Martin KaFai Lau
2025-08-26 19:52 ` Alexei Starovoitov
2025-08-27 18:28 ` Roman Gushchin
2025-09-02 17:31 ` Roman Gushchin
2025-09-02 22:30 ` Martin KaFai Lau
2025-09-02 23:36 ` Roman Gushchin
2025-09-03 0:29 ` Tejun Heo
2025-09-03 23:30 ` Roman Gushchin
2025-08-26 16:56 ` Amery Hung
2025-08-18 17:01 ` [PATCH v1 02/14] bpf: mark struct oom_control's memcg field as TRUSTED_OR_NULL Roman Gushchin
2025-08-20 9:17 ` Kumar Kartikeya Dwivedi
2025-08-20 22:32 ` Roman Gushchin
2025-08-18 17:01 ` [PATCH v1 03/14] mm: introduce bpf_oom_kill_process() bpf kfunc Roman Gushchin
2025-08-18 17:01 ` [PATCH v1 04/14] mm: introduce bpf kfuncs to deal with memcg pointers Roman Gushchin
2025-08-20 9:21 ` Kumar Kartikeya Dwivedi
2025-08-20 22:43 ` Roman Gushchin
2025-08-20 23:33 ` Kumar Kartikeya Dwivedi
2025-08-18 17:01 ` [PATCH v1 05/14] mm: introduce bpf_get_root_mem_cgroup() bpf kfunc Roman Gushchin
2025-08-20 9:25 ` Kumar Kartikeya Dwivedi
2025-08-20 22:45 ` Roman Gushchin
2025-08-18 17:01 ` [PATCH v1 06/14] mm: introduce bpf_out_of_memory() " Roman Gushchin
2025-08-19 4:09 ` Suren Baghdasaryan
2025-08-19 20:16 ` Roman Gushchin
2025-08-20 9:34 ` Kumar Kartikeya Dwivedi
2025-08-20 22:59 ` Roman Gushchin
2025-08-18 17:01 ` [PATCH v1 07/14] mm: allow specifying custom oom constraint for bpf triggers Roman Gushchin
2025-08-18 17:01 ` [PATCH v1 08/14] mm: introduce bpf_task_is_oom_victim() kfunc Roman Gushchin
2025-08-18 17:01 ` [PATCH v1 09/14] bpf: selftests: introduce read_cgroup_file() helper Roman Gushchin
2025-08-18 17:01 ` [PATCH v1 10/14] bpf: selftests: bpf OOM handler test Roman Gushchin
2025-08-20 9:33 ` Kumar Kartikeya Dwivedi
2025-08-20 22:49 ` Roman Gushchin
2025-08-20 20:23 ` Andrii Nakryiko
2025-08-21 0:10 ` Roman Gushchin
2025-08-18 17:01 ` [PATCH v1 11/14] sched: psi: refactor psi_trigger_create() Roman Gushchin
2025-08-19 4:09 ` Suren Baghdasaryan
2025-08-19 20:28 ` Roman Gushchin
2025-08-18 17:01 ` [PATCH v1 12/14] sched: psi: implement psi trigger handling using bpf Roman Gushchin
2025-08-19 4:11 ` Suren Baghdasaryan
2025-08-19 22:31 ` Roman Gushchin
2025-08-19 23:31 ` Roman Gushchin
2025-08-20 23:56 ` Suren Baghdasaryan
2025-08-26 17:03 ` Amery Hung
2025-08-18 17:01 ` [PATCH v1 13/14] sched: psi: implement bpf_psi_create_trigger() kfunc Roman Gushchin
2025-08-20 20:30 ` Andrii Nakryiko
2025-08-21 0:36 ` Roman Gushchin
2025-08-22 19:13 ` Andrii Nakryiko
2025-08-22 19:57 ` Martin KaFai Lau
2025-08-25 16:56 ` Roman Gushchin [this message]
2025-08-18 17:01 ` [PATCH v1 14/14] bpf: selftests: psi struct ops test Roman Gushchin
2025-08-19 4:08 ` [PATCH v1 00/14] mm: BPF OOM Suren Baghdasaryan
2025-08-19 19:52 ` Roman Gushchin
2025-08-20 21:06 ` Shakeel Butt
2025-08-21 0:01 ` Roman Gushchin
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