From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f74.google.com (mail-pj1-f74.google.com [209.85.216.74]) (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 C2E83246332 for ; Tue, 19 Aug 2025 23:05:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.74 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755644713; cv=none; b=c8qXmhATBdokF/qw05UfeMYA6++MnvwpUuCVHdrIg5WXq1iyhjreCru0eFWPfBB+6WSo9Tq2mxTawovxyB+TaqKhLO92eifyqiRi3U9bkr3sRShXLnFBMaAa5GhmddhzjhKB4JoDn4Oa1BFvE6sjIZpTVC7miaiThYvBNmrf+PQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755644713; c=relaxed/simple; bh=s57YALn7gVQdX0MKPvHRRNAjkYPbaKEVpBGjPx0awnc=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=ba54mNesMK7VV4eEY0+4tY2V1XSNJCcyT2jMx7s6Lkvw/YR5XUBVSMaYHF8W/dH75JohhWGq8XQ4J1AOt6jUub36vCRai3QVpsQKwnOVDVE3S6vZTaEryiJSj2HM+EoTVVBcvSmssBvFq3GOzbhnylV/Fe9KUctH45fX5qgZVeQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--ynaffit.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=an/4N+CC; arc=none smtp.client-ip=209.85.216.74 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--ynaffit.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="an/4N+CC" Received: by mail-pj1-f74.google.com with SMTP id 98e67ed59e1d1-32326bf571bso10527530a91.2 for ; Tue, 19 Aug 2025 16:05:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1755644711; x=1756249511; darn=vger.kernel.org; h=content-transfer-encoding:cc:to:from:subject:message-id:user-agent :references:mime-version:in-reply-to:date:from:to:cc:subject:date :message-id:reply-to; bh=s57YALn7gVQdX0MKPvHRRNAjkYPbaKEVpBGjPx0awnc=; b=an/4N+CCDc0jKsyqFzPoCPTD7TmK5g9pAFTlVwppUp64ZTDY6+dIamscGEaamI7lkX Fr6m9YXMUm3YHZxbMIfJpYd8noKAkuVtOwO2CnCRxAdDO0lpPf8nNNcsxWjpolUuUjpC J6TKiJxPxrQzoS+bVm+x1O0ZhlgGg6JPOebKxgy697iw/gbevcOYVx9nOM2Im4uxN3ey E+hfou0sKLJduqw7Xhv8M85Nsvio3DapcKFdAcYC25aohtTLruURkGY62xT1ZRJ5R9hR uBv+qwPnZlW6l3I9gILHX/9KXEiu5Rv1My8/BOfHA+jJIbwppV9/uDDQrDx/teEc8+vO UpCQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1755644711; x=1756249511; h=content-transfer-encoding:cc:to:from:subject:message-id:user-agent :references:mime-version:in-reply-to:date:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to; bh=s57YALn7gVQdX0MKPvHRRNAjkYPbaKEVpBGjPx0awnc=; b=mYz9s+ZU3BzX7ZeEYbe1w+IpAJSefevRPmsFSxwlxwbvEiYDyzkYhaYmAVQXzZWYUE tkRQBZ8VPqcP30uX/qJfU4+eIs2K6+CsziizJaovtbY1z8OSbKgFr6LCOQvG6qkOACA0 A8dFUVPJbMXy2heqhlOHxz+Q/ZK4rcvoD/ONkK7ix8SGBdKxlnRRgKtadXo0X7s6tZ6+ wGjDy+H3zA/18kE2U2JJ6vWs6Gsx9W1IWHLqP+alCk4BiPwrDZdBzulIVleIhyKoe8bZ 40B4UImZKoE9Hv36rR7OYuO6mCUwsqPzzcfcqyXdnkDbjPvvuOPZGwJxzHlC5gCStep5 /Iew== X-Gm-Message-State: AOJu0YxPqikK1iNt6y/tIg3zz5iqnV8UxOC45j6w4/1vfa0BvrBsLoZO iMq55Z9f0eOFTlKsucuj7UpWkunUB59tcI+EzjS7EIxzpOo6hrsev3vadJlcMp/SVQBoNy+Zr1S dyZc0VTFP+Q== X-Google-Smtp-Source: AGHT+IHqM06mS21QPq1I85PoYm4HgMV/ruKHvkhc5ta3MWpAbBvms4h38a9xCaOs0YWBBkFUxXap50j2LlK9 X-Received: from pjyp12.prod.google.com ([2002:a17:90a:e70c:b0:31e:a094:a39]) (user=ynaffit job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:5623:b0:31f:210d:2e56 with SMTP id 98e67ed59e1d1-324e140bf9amr1034862a91.28.1755644711105; Tue, 19 Aug 2025 16:05:11 -0700 (PDT) Date: Tue, 19 Aug 2025 16:05:09 -0700 In-Reply-To: ("Michal =?utf-8?Q?Koutn=C3=BD=22's?= message of "Thu, 14 Aug 2025 18:18:47 +0200") Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250805032940.3587891-4-ynaffit@google.com> <20250805032940.3587891-6-ynaffit@google.com> User-Agent: mu4e 1.12.9; emacs 30.1 Message-ID: Subject: Re: [RFC PATCH v3 2/2] cgroup: selftests: Add tests for freezer time From: Tiffany Yang To: "Michal =?utf-8?Q?Koutn=C3=BD?=" Cc: linux-kernel@vger.kernel.org, John Stultz , Thomas Gleixner , Stephen Boyd , Anna-Maria Behnsen , Frederic Weisbecker , Tejun Heo , Johannes Weiner , "Rafael J. Wysocki" , Pavel Machek , Roman Gushchin , Chen Ridong , kernel-team@android.com, Jonathan Corbet , Shuah Khan , cgroups@vger.kernel.org, linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Content-Transfer-Encoding: base64 TWljaGFsIEtvdXRuw70gPG1rb3V0bnlAc3VzZS5jb20+IHdyaXRlczoNCi4uLg0KDQoNCj4gCWlm IChjdXJyIDwgMCkgew0KPiAJCXJldCA9IEtTRlRfU0tJUDsNCj4gCQlnb3RvIGNsZWFudXA7DQo+ IAl9DQo+IAlpZiAoY3VyciA+IDApIHsNCj4gCQlkZWJ1ZygiRXhwZWN0IHRpbWUgKCVsZCkgdG8g YmUgMFxuIiwgY3Vycik7DQo+IAkJZ290byBjbGVhbnVwOw0KPiAJfQ0KDQo+IEkgbWlnaHQgbGlr ZSB0aGUgdmVyc2lvbiB3aXRoIGxlc3MgaW5kZW50YXRpb24gYW5kIGV4cGxpY2l0IGd1YXJkcy4g SXQncw0KPiBvbmx5IG1pbm9yIHN0eWxpc3RpYyBpc3N1ZS4NCg0KDQpOb3RlZCEgV2lsbCBiZSBm aXhlZCBpbiB2NC4NCg0KPj4gKw0KPj4gKwkvKg0KPj4gKwkgKiAyKSBGcmVlemUgdGhlIGNncm91 cC4gQ2hlY2sgdGhhdCBpdHMgZnJlZXplIHRpbWUgaXMNCj4+ICsJICogICAgbGFyZ2VyIHRoYW4g MC4NCj4+ICsJICovDQo+PiArCWlmIChjZ19mcmVlemVfbm93YWl0KGNncm91cCwgdHJ1ZSkpDQo+ PiArCQlnb3RvIGNsZWFudXA7DQo+PiArCXByZXYgPSBjdXJyOw0KPj4gKwljdXJyID0gY2dfY2hl Y2tfZnJlZXpldGltZShjZ3JvdXApOw0KPj4gKwlpZiAoY3VyciA8PSBwcmV2KSB7DQoNCj4gSGVy ZSBhbmQuLi4NCj4+ICsJCWRlYnVnKCJFeHBlY3QgdGltZSAoJWxkKSA+IDBcbiIsIGN1cnIpOw0K Pj4gKwkJZ290byBjbGVhbnVwOw0KPj4gKwl9DQo+PiArDQo+PiArCS8qDQo+PiArCSAqIDMpIFNs ZWVwIGZvciAxMDAgdXMuIENoZWNrIHRoYXQgdGhlIGZyZWV6ZSB0aW1lIGlzIGF0DQo+PiArCSAq ICAgIGxlYXN0IDEwMCB1cyBsYXJnZXIgdGhhbiBpdCB3YXMgYXQgMikuDQo+PiArCSAqLw0KPj4g Kwl1c2xlZXAoMTAwKTsNCj4+ICsJcHJldiA9IGN1cnI7DQo+PiArCWN1cnIgPSBjZ19jaGVja19m cmVlemV0aW1lKGNncm91cCk7DQo+PiArCWlmICgoY3VyciAtIHByZXYpIDwgMTAwKSB7DQoNCj4g Li4uaGVyZQ0KPiBJJ20gc2xpZ2h0bHkgd29ycmllZCBpdCBtYXkgY2F1c2UgdGVzdCBmbGFraW5l c3Mgb24gc3lzdGVtcyB3aXRoIHRvbw0KPiBjb2Fyc2UgY2xvY2sgZ3JhbnVsYXJpdHkuDQoNCj4g SXMgdGhlIGZpcnN0IGNoZWNrIGFueWhvdyBtZWFuaW5nZnVsPyAoSSB0aGluayBpdCdzIG9ubHkg YXMgc3Ryb25nIGFzDQo+IGNoZWNraW5nIHJldHVybiB2YWx1ZSBvZiB0aGUgcHJlY2VkaW5nIHdy aXRlKDIpIHRvIGNncm91cC5mcmVlemUuKQ0KDQoNCkhtbSBJIGhhZCBvcmlnaW5hbGx5IHB1dCB0 aGUgY2hlY2sgYXQgMikgaW4gdG8gbWFrZSBzdXJlIHRoYXQgdGhlIHZhbHVlDQppbmNyZWFzZXMg YXMgZXhwZWN0ZWQgZm9yIGFuIGVtcHR5IGNncm91cCAodGhlIHNpbXBsZXN0IGNhc2UpLCBidXQg SQ0KdGhpbmsgdGhlIGNoZWNrIGF0IDMpIChhbmQgbW9zdCBvdGhlciBjaGVja3MgaW4gdGhlc2Ug dGVzdCBjYXNlcykNCmVzdGFibGlzaCB0aGUgc2FtZSB0aGluZy4NCg0KVGhlIG90aGVyIHB1cnBv c2UgaXQgc2VydmVzIGlzIHRvIGFjdCBhcyBraW5kIG9mIGEgYnVmZmVyIGZvciB0aGUgdGltZQ0K aXQgdGFrZXMgdG8gZnJlZXplIHRoZSBjZ3JvdXAgKHRfMSAtPiB0XzIpIHRvIGVuc3VyZSB0aGF0 IHRoZSBjZ3JvdXANCndvdWxkIGJlIGZyb3plbiBmb3IgdGhlIGVudGlyZXR5IG9mIHRoZSBzbGVl cC4gSS5lLiwgcHJldmVudGluZyB0aGUgY2FzZQ0Kd2hlcmUgd2UgZmFpbCB0aGUgY2hlY2sgYmVj YXVzZSB0aGUgdGltZSBtZWFzdXJlZCBhdCB0XzMgZW5kcyB1cCBiZWluZw0KKDEwMCAtIHRoZSB0 aW1lIGl0IHRvb2sgdG8gZnJlZXplKS4NCg0KVGhhdCBzYWlkLCB0aGUgdGltZSBiZXR3ZWVuIHdy aXRpbmcgdG8gYW4gZW1wdHkgY2dyb3VwJ3MgY2dyb3VwLmZyZWV6ZQ0KYW5kIGl0IGJlZ2lubmlu ZyB0byBmcmVlemUgaXMgYmFzaWNhbGx5IG5lZ2xpZ2libGUgcmVsYXRpdmUgdG8gdGhlIHRpbWUN CnNjYWxlcyBpbiB0aGlzIHRlc3QsIHNvIEknbSBoYXBweSB0byB0YWtlIGl0IG91dCENCg0KKElm IHdoYXQgSSd2ZSB3cml0dGVuIGFib3ZlIGlzIHdvcmRlZCB0b28gY29uZnVzaW5nbHksIGlnbm9y ZSBpdC4NClRMO0RSOiB3ZSBkb24ndCBuZWVkIHRoaXMgY2hlY2shIEknbSB0YWtpbmcgaXQgb3V0 ISkNCg0KPiBXb3VsZCBpdCBjb21wcm9taXNlIHlvdXIgdXNlIGNhc2UgaWYgdGhlIGxhdHRlciBj aGVjayB3YXMgYXQgbGVhc3QNCj4gMTAwMMKgzrxzIChiYXNlZCBvbiBvdGhlciB1c2xlZXBzIGlu IGNncm91cCBzZWxmdGVzdHMpPyAoRGl0dG8gZm9yIG90aGVyDQo+IDEwMCDOvHMgY2hlY2tzLikN Cg0KTm90IGF0IGFsbCEgSSdsbCBtYWtlIHRoaXMgY2hhbmdlIGZvciB2NC4NCg0KVGhhbmtzLA0K LS0gDQpUaWZmYW55IFkuIFlhbmcNCg==