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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C0444C4332F for ; Wed, 8 Nov 2023 09:04:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235400AbjKHJEV (ORCPT ); Wed, 8 Nov 2023 04:04:21 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44618 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232634AbjKHJET (ORCPT ); Wed, 8 Nov 2023 04:04:19 -0500 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5476710A for ; Wed, 8 Nov 2023 01:04:17 -0800 (PST) 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=DwKMrZEJqJWyb1iBNiRoOym1/rT8hlneyKBBreukvKY=; b=eWtfMsEVUfu3st4uo/Ysp7hJuh /SLVqHjLFQGPjGeNt2JGCWk+5JrNdlgb4HdLTUDlL4+qRLYUllYFWVrzEYzN5tG3Nq5sZX5b6PtXB NuVFNWKWcdssAEA/Y07Jp+leufgCPmizUk/Ow2ZGRNKmHibvJceCi3e/3tt9zqLF6H50VTGzE0vAZ pGRqMPekzCxjrxrs9HYym6AWm06Ks6DOMMV5QfG+IBQlvQxsKB+Rl9NSspVENRkCT1EgBhc8+L7e/ vRD+Hh4ok5twbF8V7rV8n1uJH9pZ9qgup7sAYSIaaOnbvEe3ox/FNJ9yd22nq/FQ2Zwbu+6IUi1ll 2pqpVMTg==; Received: from j130084.upc-j.chello.nl ([24.132.130.84] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1r0eTE-0005fY-P5; Wed, 08 Nov 2023 09:03:33 +0000 Received: by noisy.programming.kicks-ass.net (Postfix, from userid 1000) id 2085330049D; Wed, 8 Nov 2023 10:03:33 +0100 (CET) Date: Wed, 8 Nov 2023 10:03:33 +0100 From: Peter Zijlstra To: Ankur Arora Cc: linux-kernel@vger.kernel.org, tglx@linutronix.de, torvalds@linux-foundation.org, paulmck@kernel.org, linux-mm@kvack.org, x86@kernel.org, akpm@linux-foundation.org, luto@kernel.org, bp@alien8.de, dave.hansen@linux.intel.com, hpa@zytor.com, mingo@redhat.com, juri.lelli@redhat.com, vincent.guittot@linaro.org, willy@infradead.org, mgorman@suse.de, jon.grimm@amd.com, bharata@amd.com, raghavendra.kt@amd.com, boris.ostrovsky@oracle.com, konrad.wilk@oracle.com, jgross@suse.com, andrew.cooper3@citrix.com, mingo@kernel.org, bristot@kernel.org, mathieu.desnoyers@efficios.com, geert@linux-m68k.org, glaubitz@physik.fu-berlin.de, anton.ivanov@cambridgegreys.com, mattst88@gmail.com, krypton@ulrich-teichert.org, rostedt@goodmis.org, David.Laight@aculab.com, richard@nod.at, mjguzik@gmail.com Subject: Re: [RFC PATCH 38/86] sched: *_tsk_need_resched() now takes resched_t Message-ID: <20231108090333.GI8262@noisy.programming.kicks-ass.net> References: <20231107215742.363031-1-ankur.a.arora@oracle.com> <20231107215742.363031-39-ankur.a.arora@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20231107215742.363031-39-ankur.a.arora@oracle.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Nov 07, 2023 at 01:57:24PM -0800, Ankur Arora wrote: > *_tsk_need_resched() need to test for the specific need-resched > flag. > > The only users are RCU and the scheduler. For RCU we always want > to schedule at the earliest opportunity and that is always > RESCHED_eager. Why ? > > For the scheduler, keep everything as RESCHED_eager for now. Why ?