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From: Leon Hwang <leon.hwang@linux.dev>
To: Masoud Aghasi <maghasi@disroot.org>, bpf@vger.kernel.org
Cc: andrii@kernel.org, eddyz87@gmail.com, ast@kernel.org,
	daniel@iogearbox.net, memxor@gmail.com, martin.lau@linux.dev,
	song@kernel.org, yonghong.song@linux.dev, jolsa@kernel.org,
	emil@etsalapatis.com, ihor.solodrai@linux.dev
Subject: Re: [PATCH bpf v4 3/3] selftests/bpf: add tests for percpu map flags combination
Date: Tue, 6 Oct 2026 10:12:05 +0800	[thread overview]
Message-ID: <29ad3e60-1404-4240-8167-222cc0c684f2@linux.dev> (raw)
In-Reply-To: <2c50da80-5c48-4bcc-a497-64d6a1a80b1c@disroot.org>

On 5/10/26 23:19, Masoud Aghasi wrote:
> On 05/10/2026 04:12, Leon Hwang wrote:
>> On 4/10/26 19:10, Masoud Aghasi wrote:

[...]

>>
>> After reading test_percpu_map_flags_combination(), two helpers are
>> needed to verify the updated values. One for updating with BPF_F_CPU,
>> another one for updating with BPF_F_ALL_CPUS.
>>
>> Thanks,
>> Leon
> 
> Thanks, I will apply your comments to the v5.
> just regarding the is_hash_map, isn't it better to keep it as an
> implementation detail inside the function and avoid introducing an
> unnecessary invariant for callers to maintain?

I think either way is fine in this selftest.

Thanks,
Leon


      reply	other threads:[~2026-10-06  2:12 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-10-04 11:10 [PATCH bpf v4 0/3] bpf: Fix incorrect handling of user flags by percpu map updates Masoud Aghasi
2026-10-04 11:10 ` [PATCH bpf v4 1/3] bpf: Fix incorrect handling of user flags in bpf_percpu_array_update Masoud Aghasi
2026-10-05  3:10   ` Leon Hwang
2026-10-05 14:58     ` Masoud Aghasi
2026-10-04 11:10 ` [PATCH bpf v4 2/3] bpf: Fix incorrect handling of user flags by percpu hash map updates Masoud Aghasi
2026-10-04 11:10 ` [PATCH bpf v4 3/3] selftests/bpf: add tests for percpu map flags combination Masoud Aghasi
2026-10-05  3:12   ` Leon Hwang
2026-10-05 15:19     ` Masoud Aghasi
2026-10-06  2:12       ` Leon Hwang [this message]

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