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 X-Spam-Level: X-Spam-Status: No, score=-2.1 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 33A05C48BD5 for ; Tue, 25 Jun 2019 07:51:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F395C20659 for ; Tue, 25 Jun 2019 07:51:45 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="gonuAL+a" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727860AbfFYHvo (ORCPT ); Tue, 25 Jun 2019 03:51:44 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:35330 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726422AbfFYHvo (ORCPT ); Tue, 25 Jun 2019 03:51:44 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.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:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=VCfTXrUT51VC3fOwD5moxz0xBEdZcUd6I6RBk2NwmkI=; b=gonuAL+aTKeGAvseXB8jqKHYL qz9yE/6zh0ol5fVjbgalChRyQipUdaYeHn5w9eRo6uk6VcG2tTliPfUd5fba+D8hOBXKtVN+viIsP eZ7eoSQg4leFt1qWYbqPR5TcXRvFvlZx5AN71RC8QlXoiDOShg4/WmBOfoEys+YMy0CXH+I6wuGSB mPCGLkypi3WYC87Fdtad7MstGhFrSlGhcPpdhesj3Ep1jUng468bn04XNAZrr9r5gXd8dxhqp8dIF dDUIXPlolI+783UKTdXSi75HZ62mW76I629ngj1FCj5ufLozGwyrte3NILCu1oHZRb3SRGySi875Y ZYOioN0eQ==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=hirez.programming.kicks-ass.net) by bombadil.infradead.org with esmtpsa (Exim 4.92 #3 (Red Hat Linux)) id 1hfgEu-0006b9-Uy; Tue, 25 Jun 2019 07:51:41 +0000 Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 4F1B320A02444; Tue, 25 Jun 2019 09:51:39 +0200 (CEST) Date: Tue, 25 Jun 2019 09:51:39 +0200 From: Peter Zijlstra To: Frederic Weisbecker Cc: "Paul E. McKenney" , linux-kernel@vger.kernel.org, mingo@redhat.com, tglx@linutronix.de Subject: Re: [PATCH] time/tick-broadcast: Fix tick_broadcast_offline() lockdep complaint Message-ID: <20190625075139.GT3436@hirez.programming.kicks-ass.net> References: <20190621105503.GI3436@hirez.programming.kicks-ass.net> <20190621121630.GE26519@linux.ibm.com> <20190621122927.GV3402@hirez.programming.kicks-ass.net> <20190621133414.GF26519@linux.ibm.com> <20190621174104.GA7519@linux.ibm.com> <20190621175027.GA23260@linux.ibm.com> <20190621234602.GA16286@linux.ibm.com> <20190624231222.GA17497@lerouge> <20190624234422.GP26519@linux.ibm.com> <20190625004300.GB17497@lerouge> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190625004300.GB17497@lerouge> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jun 25, 2019 at 02:43:00AM +0200, Frederic Weisbecker wrote: > Yeah, unfortunately there is no atomic_add_not_zero_return(). There is atomic_fetch_add_unless().