From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wr1-f41.google.com (mail-wr1-f41.google.com [209.85.221.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C14F6429CF8 for ; Fri, 17 Jul 2026 14:23:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.41 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784298218; cv=none; b=UGCCnxjdXl8hKzS6+AMbmPpYcUTkakXj2Eh50BJppv0NWtkbJfTvhRVHtlDIk2ofjljVFRFDExQrSQyrSnyvKNpIO0MsAmnvaJbvEODiMDQ9wBrTV8O7p2yQ11G+0+3UIvgXAp8Bb90d4kkbYO6t5ZkHFr/qne83SYh3YH254vs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784298218; c=relaxed/simple; bh=4z/ZM/kHqhece94DHAkgUPCmtAnBvKs9+ODADv3yvOY=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=qJ0dsvfwTGgfCMlUYBT2+p2/12b8HP2M+d9W1Mw8PbE1ZIXtcmsNE5o3RhhxTWcvmw5popfCd78F/b+p5uwnVHchwzlAFdaUqMpEZ37ICySl0sXStOrrP8oI+9G68oSw46EIFOE/G2Tk7ZZ71KUoYb2XntmTr32p9kaq+BHQfQQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=suse.com; spf=pass smtp.mailfrom=suse.com; dkim=pass (2048-bit key) header.d=suse.com header.i=@suse.com header.b=E/tGOCcR; arc=none smtp.client-ip=209.85.221.41 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=suse.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=suse.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=suse.com header.i=@suse.com header.b="E/tGOCcR" Received: by mail-wr1-f41.google.com with SMTP id ffacd0b85a97d-4728c12ba97so3834327f8f.0 for ; Fri, 17 Jul 2026 07:23:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=google; t=1784298215; x=1784903015; darn=vger.kernel.org; h=in-reply-to:content-disposition:content-type:mime-version :references:message-id:subject:cc:to:from:date:from:to:cc:subject :date:message-id:reply-to:content-type; bh=g+lJSnUWG+oT4HrzrVhOyUY2HQo6Hr/x9ILN67HFaIs=; b=E/tGOCcR/dC3340a3c+GJcC5MHo3AafAhSrYJRgJ090aniN0AfFhSN1qfw22QWitGx 50elmdfXs9y5bzJgBD7j6jgm8KYyg7Ym3cpGac4VOURUyhlNdu5ZPmHaBSuN5wnbigZ8 BzNOITABSAYbpOTTOiOdPT7sa0x0wdSXE3wUKQIrsi4F6tmE6aIv07NGEUSPCziYtPx6 c4Wl4SwRusafJ65kdRqcFD2Daolr5rnzNVpxL9DRYrN6A3ZsyzdULKP057QIKDxqGHCF CGsw3qbxDCbaoxjd/dHhuSO4W+w9CS5yqBc0is/UFlKWUMLnaqUbp8FIsHCuN3CtmymL tdgA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1784298215; x=1784903015; h=in-reply-to:content-disposition:content-type:mime-version :references:message-id:subject:cc:to:from:date:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=g+lJSnUWG+oT4HrzrVhOyUY2HQo6Hr/x9ILN67HFaIs=; b=Sm7PdF9XzkrX0yHSDig1FDkPc9HIQyGqdCbbocpFsrQAeM40j4wj4wH/kjvtAnNf2K Mabefl6Ao1ffgPJigFBow0l9pNgUbEceoHgaMLjk4aFy7+EBui4O9eBzdIwMl0TqRc7/ GQu/YPCMMfS+2QbiVnMZzCNpqb6T1a5VcGEdiTfsBef2/Izn0ThAQaF9zp/dfNWJUVVE ra6l/aL1wTamjT+iOvo9AvaKQ9k+WbPhxSaTmR1UMQEIfnSGoo6JASnlX0/9sJsv3VIb o7aNkn9raLj5sMLAf8oSerLJxDP2x1lEAgiVZIRSx2Z9Bq267Eqb/k+b2HVocoDRgGSP PVjA== X-Forwarded-Encrypted: i=1; AHgh+RquIcfcPrivTgKuk35zOl8SPDz2bzWNbLTxeTnGZq5VBySp6+0uLG3InPXNNuQ3IMUIxo0rypXE@vger.kernel.org X-Gm-Message-State: AOJu0YxvyaffJyMAVSGa+2bgnfbQ6Z4DdsIIHrffOlfJt6/hH2n6JgWo 8Ee4PrgaCqDcydrBN0aYWeCG7vYVCrdnPxDYr9Vk3Qrmm0s5d6E7TiqrrLRFffjxDDI= X-Gm-Gg: AfdE7cl7fKfn/LIjbdO//SdlTmc//xfI9OEY2A58VczabQiwnJVd5zDPUqlcX92xuvz vfAhbL4jZcJQy7U3kXzgkEYfUKX1ZkG/ZG/MwTeP25MpyXEVowbB66E6Khe9UPMIcMLwtCGV1wg Iz6OZBKFcOGaPgFN2BMu76EX+pxMeAOXT9bW/XlyQLFnBxSV++dUO5XUdbkW+leUZKqSJyql7/o 4d/gcZZxRhGB5MXqOL/oQBc/J0XDlQ1UpcU6nrHBkc5Z6cddibexB3G0YqosbbnOIgegclQl6Xj gEhRHmAH+hRhwcMcgJ7O4u35GPhnYRLlDo/e8ooNHVd6t9C83gvn8P4d9F47vWaiQVqfVvFFY2m hOBFTDMxlkTvz+/MxY3vihVrnjc/zeePF5IAYgBRWIaH2GoCG3yi+4b0msKaXUcGWdelyUF7XpK Tsu36e/A== X-Received: by 2002:a05:600c:5351:b0:493:c8a6:b517 with SMTP id 5b1f17b1804b1-4954a51bb65mr23104385e9.38.1784298214940; Fri, 17 Jul 2026 07:23:34 -0700 (PDT) Received: from localhost.localdomain ([2001:af0:8000:1409:193:86:92:181]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4954a2f210csm56209415e9.15.2026.07.17.07.23.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Jul 2026 07:23:34 -0700 (PDT) Date: Fri, 17 Jul 2026 16:23:32 +0200 From: Michal =?utf-8?Q?Koutn=C3=BD?= To: guojian Cc: tj@kernel.org, hannes@cmpxchg.org, shuah@kernel.org, cgroups@vger.kernel.org, linux-kselftest@vger.kernel.org Subject: Re: [PATCH] selftests/cgroup: Remove redundant cg_enter_current() call in test_core Message-ID: References: <20260717110606.298368-1-guojian@kylinos.cn> Precedence: bulk X-Mailing-List: cgroups@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="dgzblnkfz736lsnj" Content-Disposition: inline In-Reply-To: <20260717110606.298368-1-guojian@kylinos.cn> --dgzblnkfz736lsnj Content-Type: text/plain; protected-headers=v1; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Subject: Re: [PATCH] selftests/cgroup: Remove redundant cg_enter_current() call in test_core MIME-Version: 1.0 On Fri, Jul 17, 2026 at 07:06:06PM +0800, guojian wrot= e: > From: Jian Guo >=20 > The test_cgcore_no_internal_process_constraint_on_threads test has two > back-to-back cg_enter_current(root) calls in its cleanup path. >=20 > A single cg_enter_current() call atomically migrates the entire thread > group to the target cgroup even for multi-threaded processes, and this > test creates no extra threads or child processes that would require a > second migration attempt. The second call is a harmless no-op once the > process is already in the root cgroup, but it is redundant and > inconsistent with the cleanup logic used in all other cgroup core > selftest cases. >=20 > Remove the duplicate call to clean up the code. No functional change is > intended. >=20 > Signed-off-by: Jian Guo > --- > tools/testing/selftests/cgroup/test_core.c | 1 - > 1 file changed, 1 deletion(-) Fixes: d863cb03fc5f9 ("Add cgroup core selftests") Good catch. Acked-by: Michal Koutn=FD --dgzblnkfz736lsnj Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iJEEABYKADkWIQRCE24Fn/AcRjnLivR+PQLnlNv4CAUCalo63xsUgAAAAAAEAA5t YW51MiwyLjUrMS4xMiwyLDIACgkQfj0C55Tb+AitDgD/UbuUiXOGtFpCCTZfBsMC M5HjWGFJWivmM+7NPaauMaEBAI0kzQ5rIjnNG/LYJ9VZ1lrYudYi8kS/+vZoHGVb IJgG =wOvu -----END PGP SIGNATURE----- --dgzblnkfz736lsnj--