From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 24D1ED36121 for ; Tue, 5 Nov 2024 19:50:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type:MIME-Version: References:Message-ID:In-Reply-To:Subject:cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=OdnFQdcZbnKD7gZyYCPM2XvmjtLUUKuQfJuGybABfRg=; b=P6PdEt+IAy34GbDa1Oj0TBmJek r4ycvaqLVSi1icZzN9rInG9Q+Yz7wHCTndGy7SoUFZgGQl4JsW5nolvegJH09k5U8b3X6nJiP0WdD ma8ZsiQ/1FMgSf4OElfoE800/cIkDNPbhVElNnTw/1pybddlQIndE9na9F6MSjhTykpoY3tLoyonl LW8dOn16BAi+F8j1r+6mp4FLjlDo8wdUPxwSQFmmZBDYwiPKX+qc75Yh4FdWy8/0ncASWBLpgJVSP he7uUk504mc69EG5KDWnTmmaSOpkpzjcf6EGUJ2AEN8zvgozBYjbvd1938KrpZzcI7No8wgSg7gVC h2UJQvkg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1t8PZH-00000000bVr-3aeC; Tue, 05 Nov 2024 19:50:23 +0000 Received: from gentwo.org ([62.72.0.81]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1t8PUp-00000000aug-0Jux for linux-arm-kernel@lists.infradead.org; Tue, 05 Nov 2024 19:45:48 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gentwo.org; s=default; t=1730835946; bh=1U3UU0vNK2UHqlFnB6QG7+izsLRF9HGSgXpwKtSG3OA=; h=Date:From:To:cc:Subject:In-Reply-To:References:From; b=QExaPV0B5/PcD8M4wyyQL8ZSAkH2WoSHEwCG2/0klxJX0iv+ArrkvEkLOPp396e/D m+gORqTG38L7ug2odYbT12ywp5Bz8o6bUuXdhAV/j1t2PNijJsfQnzDYDzWpbTdZ4F 4VogdWAIEQvMGxg8QW/d2ljyUEjWDBYg1KS7t/00= Received: by gentwo.org (Postfix, from userid 1003) id 7C1A34027E; Tue, 5 Nov 2024 11:45:46 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by gentwo.org (Postfix) with ESMTP id 7A4F24026F; Tue, 5 Nov 2024 11:45:46 -0800 (PST) Date: Tue, 5 Nov 2024 11:45:46 -0800 (PST) From: "Christoph Lameter (Ampere)" To: Haris Okanovic cc: ankur.a.arora@oracle.com, catalin.marinas@arm.com, linux-pm@vger.kernel.org, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, will@kernel.org, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, pbonzini@redhat.com, wanpengli@tencent.com, vkuznets@redhat.com, rafael@kernel.org, daniel.lezcano@linaro.org, peterz@infradead.org, arnd@arndb.de, lenb@kernel.org, mark.rutland@arm.com, mtosatti@redhat.com, sudeep.holla@arm.com, misono.tomohiro@fujitsu.com, maobibo@loongson.cn, joao.m.martins@oracle.com, boris.ostrovsky@oracle.com, konrad.wilk@oracle.com Subject: Re: [PATCH 5/5] cpuidle: implement poll_idle() using smp_vcond_load_relaxed() In-Reply-To: <20241105183041.1531976-6-harisokn@amazon.com> Message-ID: References: <20240925232425.2763385-1-ankur.a.arora@oracle.com> <20241105183041.1531976-1-harisokn@amazon.com> <20241105183041.1531976-6-harisokn@amazon.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241105_114547_187395_7D9CF83E X-CRM114-Status: UNSURE ( 6.64 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, 5 Nov 2024, Haris Okanovic wrote: > { > - u64 time_start; > - > - time_start = local_clock_noinstr(); > + unsigned long flags; Lets keep recording that start value here. Otherwise the timeout could me later than expected.