From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7463A15CD78 for ; Wed, 9 Oct 2024 18:02:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.50.34 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728496968; cv=none; b=nStryjfz+13PjGJxdrxftQtIuwOHcQZvEP81f5J9x2wud8icSC7FHqQgJJm8gWCqPd9EjLQquRpuwsxDNq4rQrYeuNo+hM08sGNepQ4rbACj4VVHWUN8wHf4g+xU40LXAx0oUoIPyqNCvJnLzWJKGniMSKLY25VEKIaZxVd+NWI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728496968; c=relaxed/simple; bh=uufaGhPfBKH4bXGbC8VnH4pc/tiVno7fbyMj/UIEXw0=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=XL2X+5YZdYdEsK0ZGsouRLaCnH/FyCIMao/9OfDp5IbGCjLP9vm7oaJnhlv8FuNJBQ70YurQbTu5Xs6Aoo/1e1BvlnsQ8Gg1g8TwjJ3G0XQYY+C2XH9/xx9iZ9BgpacSZ9uo2hf3sicIEUGH0xA0WTu8ni7JW9FKsx7jpw7FMi4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=YhvFChua; arc=none smtp.client-ip=90.155.50.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="YhvFChua" 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=YsGlJliD121LwIDrCts0ht88D8qw94VJ0R5KaHarO/8=; b=YhvFChuaSXWl/3Hc1nokNul48U SWCL3F11Ef781QoYu4KH18j9o1vS4J7SGCtUkFYKkKS7cw15IF1kYmyyXGtIuPLhS90whylsOhhcB 0IKqY8si6SFARHheXj2CAnk5GgAf5eDaNiu6BXHeYC2IxbhOiHFLNoLFJ069tnNd0vo39DMRIeXu4 Dg9P5FfmV9IRSUZ/KJ2oiUY8bjvdQSAN+snEmX6aAvYrqyhy6jUl35t24/6nRZXn7YJ3Dn1tQuDce 6c4tzSYVJZbDVGccfJ6mQNqD00l9cWtP+qhU9sD2eThDCQ7P6FnD+4drqZUADPUJSkuKfUCWeFnnI qP3eMuOw==; Received: from j130084.upc-j.chello.nl ([24.132.130.84] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.98 #2 (Red Hat Linux)) id 1syb16-00000005ShI-14Jp; Wed, 09 Oct 2024 18:02:33 +0000 Received: by noisy.programming.kicks-ass.net (Postfix, from userid 1000) id 5E1AA30057A; Wed, 9 Oct 2024 20:02:32 +0200 (CEST) Date: Wed, 9 Oct 2024 20:02:32 +0200 From: Peter Zijlstra To: Ankur Arora Cc: linux-kernel@vger.kernel.org, tglx@linutronix.de, paulmck@kernel.org, mingo@kernel.org, bigeasy@linutronix.de, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de, vschneid@redhat.com, frederic@kernel.org, efault@gmx.de Subject: Re: [PATCH 5/7] rcu: rename PREEMPT_AUTO to PREEMPT_LAZY Message-ID: <20241009180232.GT17263@noisy.programming.kicks-ass.net> References: <20241009165411.3426937-1-ankur.a.arora@oracle.com> <20241009165411.3426937-6-ankur.a.arora@oracle.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20241009165411.3426937-6-ankur.a.arora@oracle.com> On Wed, Oct 09, 2024 at 09:54:09AM -0700, Ankur Arora wrote: > diff --git a/kernel/rcu/Kconfig b/kernel/rcu/Kconfig > index 1bfe7016724f..cd3148fb566a 100644 > --- a/kernel/rcu/Kconfig > +++ b/kernel/rcu/Kconfig > @@ -91,7 +91,7 @@ config NEED_TASKS_RCU > > config TASKS_RCU > bool > - default NEED_TASKS_RCU && (PREEMPTION || PREEMPT_AUTO) > + default NEED_TASKS_RCU && (PREEMPTION || PREEMPT_LAZY) > select IRQ_WORK PREEMPT_LAZY implies PREEMPTION