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 20DCFCC6B1D for ; Wed, 14 Oct 2026 13:03:39 +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:In-Reply-To:Content-Type: MIME-Version:References:Message-ID: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=qpDVtITf3q8Ifbj2iEUKwlnz+d7HVCX5OeHwbVW15bw=; b=m7uoJvmcqVvn6TzbaBEETJKHk3 p5Zmn95dZKCPeKmYeFY9Kqn2zdyVlUVrxI6eUR33TptYyIWMoZSo47vsWIlTQ/H1jl0+fQHAqH6Su e37Lv1MODRSOZiw1fvLsycDH12wOj+u+vKyS9PXsK9DYFO1ccSdotYMRiPozD1cn+WG4PRZKyDG1C AHl3FNHsev0tN1CVkiwVERf0viKoGE11r92GjcPJw98YAGgQuKW5cEyqQypU9V0XNCnK/Am+el0NM gxHd/C7n5R+/xn/glP9QTSh/KzXWmW4DD3WLR8qiXCAT0zJOOXoU+hkgOoAL20I4P4wFJRcEBH7/x XHrGsoLw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1xGydg-0000000FWTM-2HKU; Wed, 14 Oct 2026 13:03:24 +0000 Received: from casper.infradead.org ([2001:8b0:10b:1236::1]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1xGydX-0000000FWQ9-0iF7; Wed, 14 Oct 2026 13:03:17 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=qpDVtITf3q8Ifbj2iEUKwlnz+d7HVCX5OeHwbVW15bw=; b=UfOmPQFfXG9yQ7V+vbm7oiZOGW NkkZDTPdShRGr1WZwDjypGTA7zupgTteD6J1yBpVPpbVLHJTv0YV7Zl/Nabgk+fVnfYN4E58omPO1 yf/zzdLKDeqzn7lKGFMsQ9OlIxVB6lipNntBqNlOK0FbScSBo8NoGe/qQBqnyZN8sfvTDo8+QlZ83 rn9JWN0qxxqWnYagLnPikr7k8ZB1IeCiDBFZ+EOzfNVwhMAQqEBdYov75Y7E0BD8Gx6BY1zscNr3S DowBcc+dAVyNZTBi0iPpA4jytlU+03GZu34ZslvnXA4wVweNjUhWII+52gjtmFPlz8lwC2OlIncTd //Xt9exA==; Received: from 77-249-17-252.cable.dynamic.v4.ziggo.nl ([77.249.17.252] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.99.1 #2 (Red Hat Linux)) id 1xGydP-00000003mxp-317m; Wed, 14 Oct 2026 13:03:07 +0000 Received: by noisy.programming.kicks-ass.net (Postfix, from userid 1000) id 6EC9C302FBC; Wed, 14 Oct 2026 15:03:06 +0200 (CEST) Date: Wed, 14 Oct 2026 15:03:06 +0200 From: Peter Zijlstra To: Catalin Marinas Cc: "Christoph Lameter (Ampere)" , Ankur Arora , Haris Okanovic , linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pm@vger.kernel.org, bpf@vger.kernel.org, arnd@arndb.de, will@kernel.org, akpm@linux-foundation.org, mark.rutland@arm.com, ast@kernel.org, rafael@kernel.org, daniel.lezcano@linaro.org, memxor@gmail.com, zhenglifeng1@huawei.com, xueshuai@linux.alibaba.com, rdunlap@infradead.org, david.laight.linux@gmail.com, broonie@kernel.org, joao.m.martins@oracle.com, boris.ostrovsky@oracle.com, konrad.wilk@oracle.com, ashok.bhat@arm.com Subject: Re: [PATCH v15 12/16] cpuidle/poll_state: Wait for need-resched via tif_need_resched_relaxed_wait() Message-ID: <20261014130306.GK2009045@noisy.programming.kicks-ass.net> References: <20260831202251.305046-1-ankur.a.arora@oracle.com> <20260831202251.305046-13-ankur.a.arora@oracle.com> <178908146776.2725577.2613699832033292946.b4-review@b4> <878q58z2ej.fsf@oracle.com> <3e8bda45-0aa7-d0be-8aad-dab95902dcde@gentwo.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: 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 Wed, Oct 14, 2026 at 10:00:18AM +0100, Catalin Marinas wrote: > It > would also be nice to get some acks from the atomic infrastructure > maintainers. That'd be Mark and me I suppose. I don't see anything substantial happening, just plumbing the new function. Now, I really rather dislike timeout based schemes, but given we have users, I suppose this does improve things. We should however be weary of new ones I suppose.