From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 992251429B; Tue, 28 May 2024 04:12:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716869578; cv=none; b=p8pNGgxMF+ez8ZmjI9aUWpsBAz+FlNS4I+tR4n9iVrey2LBj+HZ0X7d/dUuAwnNgZESUeQcrEC5QTFyJBK39T9FfCNhlkFo6S43cPl0z6zR3e8GML1W20+Hd+XiIM8VjPYsXQzPuTAN5ORbgiU9CZBD6VaW2h9MGh9SB7rE/kNE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716869578; c=relaxed/simple; bh=aEzsRiSjgkrXMU6C2BYY5PAhHirQr2H/hTfqofWt4Ec=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=ECFxdarG81fN9vko93DYgzgt7p6NKjnQJobMXxYtbYsQTKNyTogEkUKGxsH97xkOaIXm+lsmNPeOgw+xNtopCEzW2VcKpYVwfG6yQuUB06YRgYt4eLqzOI5+BvxGz4e1MHVPyZ5SP6niNMg7TMlqaEZC8wGhCHECU6ENSbRdLe8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ulrLpEY4; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="ulrLpEY4" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D5FC4C3277B; Tue, 28 May 2024 04:12:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1716869578; bh=aEzsRiSjgkrXMU6C2BYY5PAhHirQr2H/hTfqofWt4Ec=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=ulrLpEY4p7XBDK0VkaSl2qjJV0BvR3KLwSEnjEcoq+xHv1ymNj3s9PzunJ9yPwx8Q tDB2VcYh0uB/lO0x0ysSh/yGwTCP82G81U+BGDWuGPsCISUapiz4R7B28dh6azTnzO fbRLtVmwhgJyLnaRH4Hphhp35uxBcfJsZWFj/ZIW+A25yYO99vTxFio87bwqhdSLUr gEieeKlTgiVjGPR6jzMVa+v/6cvlxElwnnVI6tyXtk2ryBHsgBZ0P8jXyZ3jH+i4z7 SDH9GfpEY4Zq+myN3yEEPpBxbj4zQwKZJkCEMLyeMUxNb4T33AURV/dNjlVaZKtcIo 4c/o9NfePafQw== Message-ID: <577531139c4db3cb35f3f40e23587bcb9815b0ba.camel@kernel.org> Subject: Re: [PATCH bpf-next 3/8] selftests/bpf: Use bpf_link attachments in test_sockmap From: Geliang Tang To: Jakub Sitnicki , John Fastabend Cc: Andrii Nakryiko , Eduard Zingerman , Mykola Lysenko , Alexei Starovoitov , Daniel Borkmann , Martin KaFai Lau , Song Liu , Yonghong Song , KP Singh , Stanislav Fomichev , Hao Luo , Jiri Olsa , Shuah Khan , Geliang Tang , bpf@vger.kernel.org, linux-kselftest@vger.kernel.org Date: Tue, 28 May 2024 12:12:50 +0800 In-Reply-To: <87wmnfujwg.fsf@cloudflare.com> References: <32cf8376a810e2e9c719f8e4cfb97132ed2d1f9c.1716446893.git.tanggeliang@kylinos.cn> <6654beff96840_23de2086e@john.notmuch> <87wmnfujwg.fsf@cloudflare.com> Autocrypt: addr=geliang@kernel.org; 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charset="UTF-8" User-Agent: Evolution 3.52.0-1build2 Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 7bit On Mon, 2024-05-27 at 21:36 +0200, Jakub Sitnicki wrote: > On Mon, May 27, 2024 at 10:12 AM -07, John Fastabend wrote: > > Geliang Tang wrote: > > > From: Geliang Tang > > > > > > Switch attachments to bpf_link using > > > bpf_program__attach_sockmap() instead > > > of bpf_prog_attach(). > > > > Sorry it took me a few days to get to this. > > > > Is there a reason to push this to links vs just leave it as is? I > > had > > a plan to port all the test_sockmap tests into prog_tests anyways. > > I'll > > try to push some initial patch next week. Great, I strongly agree with porting them into prog_tests. I am also willing to participate in implementing this plan together. > > > > The one advantage of test_sockmap is we can have it run for longer > > runs by pushing different options through so might be worth keeping > > just for that. > > > > If you really want links here I'm OK with that I guess just asking. > > It was me who suggested the switch to bpf_link in reaction to a > series > of cleanups to prog_type and prog_attach_type submitted by Geliang. Yes, patches 3-5 address Jakub's suggestion: switching attachments to bpf_link. > Relevant threads: > > https://lore.kernel.org/bpf/9c10d9f974f07fcb354a43a8eca67acb2fafc587.1715926605.git.tanggeliang@kylinos.cn > https://lore.kernel.org/bpf/20240522080936.2475833-1-jakub@cloudflare.com > https://lore.kernel.org/bpf/e27d7d0c1e0e79b0acd22ac6ad5d8f9f00225303.1716372485.git.tanggeliang@kylinos.cn > > I thought bpf_links added more value than cleaning up "old style" > attachments. Other patches 1-2, 6-8 are small fixes which I found while trying to solve the NONBLOCK issue [1]. Yes, I haven't given up on solving this issue yet. I think it must be solved, since there is a bug somewhere. WDYT? [1] https://patchwork.kernel.org/project/netdevbpf/patch/b67101632c6858d281f105b5d4e1bc62dd6b7d27.1712133039.git.tanggeliang@kylinos.cn/ Thanks, -Geliang