From: Martin KaFai Lau <martin.lau@linux.dev>
To: Andrii Nakryiko <andrii.nakryiko@gmail.com>,
Eduard Zingerman <eddyz87@gmail.com>
Cc: bpf@vger.kernel.org, ast@kernel.org, andrii@kernel.org,
daniel@iogearbox.net, kernel-team@fb.com,
yonghong.song@linux.dev, void@manifault.com
Subject: Re: [PATCH bpf-next v1 6/8] selftests/bpf: test autocreate behavior for struct_ops maps
Date: Wed, 28 Feb 2024 16:56:30 -0800 [thread overview]
Message-ID: <9641831b-823c-48e9-924b-8e68f9d731e4@linux.dev> (raw)
In-Reply-To: <CAEf4BzYRS-wd_FTi-_=1t9mjgMp3P6yrTqbkQ+359aKmcjZDNQ@mail.gmail.com>
On 2/28/24 4:02 PM, Andrii Nakryiko wrote:
>> Also, what would happen when two tests would set struct_ops for same
>> attachment point?
> I'm not sure, Martin?
The kernel bpf struct_ops infra can handle it. For example, different userspace
processes may register bpf-tcp-cc in parallel also. It is a matter of the
subsystem (tcp in the bpf-tcp-cc case) can handle it or not.
In the testmod case, it will be bpf_dummy_reg[2] and nothing in there is
stopping parallel run afaict.
next prev parent reply other threads:[~2024-02-29 0:56 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-27 20:45 [PATCH bpf-next v1 0/8] libbpf: type suffixes and autocreate flag for struct_ops maps Eduard Zingerman
2024-02-27 20:45 ` [PATCH bpf-next v1 1/8] libbpf: allow version suffixes (___smth) for struct_ops types Eduard Zingerman
2024-02-27 21:47 ` Kui-Feng Lee
2024-02-27 21:49 ` Eduard Zingerman
2024-02-28 16:29 ` David Vernet
2024-02-28 17:28 ` Eduard Zingerman
2024-02-28 17:30 ` David Vernet
2024-02-28 23:21 ` Andrii Nakryiko
2024-02-28 23:37 ` Eduard Zingerman
2024-02-27 20:45 ` [PATCH bpf-next v1 2/8] libbpf: tie struct_ops programs to kernel BTF ids, not to local ids Eduard Zingerman
2024-02-28 7:41 ` Martin KaFai Lau
2024-02-28 17:23 ` David Vernet
2024-02-28 17:40 ` Eduard Zingerman
2024-02-28 17:50 ` David Vernet
2024-02-28 23:28 ` Andrii Nakryiko
2024-02-28 23:31 ` Eduard Zingerman
2024-02-28 23:34 ` Andrii Nakryiko
2024-02-27 20:45 ` [PATCH bpf-next v1 3/8] libbpf: honor autocreate flag for struct_ops maps Eduard Zingerman
2024-02-28 17:44 ` David Vernet
2024-02-27 20:45 ` [PATCH bpf-next v1 4/8] selftests/bpf: test struct_ops map definition with type suffix Eduard Zingerman
2024-02-28 18:03 ` David Vernet
2024-02-27 20:45 ` [PATCH bpf-next v1 5/8] selftests/bpf: bad_struct_ops test Eduard Zingerman
2024-02-28 18:15 ` David Vernet
2024-02-28 20:06 ` Eduard Zingerman
2024-02-28 20:11 ` David Vernet
2024-02-28 23:40 ` Andrii Nakryiko
2024-02-28 23:44 ` Eduard Zingerman
2024-02-28 23:56 ` Andrii Nakryiko
2024-02-29 0:06 ` Eduard Zingerman
2024-02-27 20:45 ` [PATCH bpf-next v1 6/8] selftests/bpf: test autocreate behavior for struct_ops maps Eduard Zingerman
2024-02-28 18:29 ` David Vernet
2024-02-28 18:34 ` David Vernet
2024-02-28 19:31 ` Eduard Zingerman
2024-02-28 23:43 ` Andrii Nakryiko
2024-02-28 23:55 ` Eduard Zingerman
2024-02-29 0:02 ` Andrii Nakryiko
2024-02-29 0:56 ` Martin KaFai Lau [this message]
2024-03-01 1:28 ` Eduard Zingerman
2024-03-01 18:03 ` Andrii Nakryiko
2024-03-01 18:07 ` Eduard Zingerman
2024-02-27 20:45 ` [PATCH bpf-next v1 7/8] libbpf: sync progs autoload with maps autocreate " Eduard Zingerman
2024-02-27 22:55 ` Kui-Feng Lee
2024-02-27 23:09 ` Eduard Zingerman
2024-02-27 23:16 ` Kui-Feng Lee
2024-02-27 23:30 ` Eduard Zingerman
2024-02-27 23:40 ` Kui-Feng Lee
2024-02-27 23:43 ` Eduard Zingerman
2024-02-28 0:12 ` Kui-Feng Lee
2024-02-28 0:50 ` Eduard Zingerman
2024-02-28 2:10 ` Martin KaFai Lau
2024-02-28 12:36 ` Eduard Zingerman
2024-02-28 23:55 ` Andrii Nakryiko
2024-02-29 0:04 ` Eduard Zingerman
2024-02-29 0:14 ` Andrii Nakryiko
2024-02-29 0:25 ` Martin KaFai Lau
2024-02-29 0:30 ` Andrii Nakryiko
2024-02-29 0:37 ` Martin KaFai Lau
2024-02-29 0:40 ` Eduard Zingerman
2024-02-27 20:45 ` [PATCH bpf-next v1 8/8] selftests/bpf: tests for struct_ops autoload/autocreate toggling Eduard Zingerman
2024-02-28 18:36 ` David Vernet
2024-02-28 20:10 ` Eduard Zingerman
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