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 D21591DFE16 for ; Tue, 17 Dec 2024 09:19:51 +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=1734427193; cv=none; b=p08zelS13sERQyvTgaKeuvGehYSh38wHe0by4hNtKnAMVwVt2QJw6jG8KzzqPfaYO7wDo5dtHyOFjpIA+8KLF+7BgEHW9ur3iObR7CXsW1odphB3Dmeoiceb6IjvUJD7bO0CAdTQ1wY4Bdij/grJl1VnVuoRmGVlogIxKD+98Pc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734427193; c=relaxed/simple; bh=OUuzywE8CHloqIU0RJfp7qUpRNQcGoQYoHO73/PmFS8=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=TrJVOeozL2hkHb/fYeeD4FuBcI7eq7ZncioF4kFvw5deUeAJLp7Ia2QuakpmMzYEMEcGEs37NHFVo8fc8gnnPFMzUHhOARpC5aLgUSnz9RNFfB9F8rq2dGvINGKINPVZND64dy1o6Gdl/m/5RazHe2Mx9XkkoDkmC6SnRmpqYdo= 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=vghqSsaU; 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="vghqSsaU" 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=xCZ8fnFaYFb5nC5ZozgtceveuSSe0JXurTGbtKIVuMw=; b=vghqSsaU0BaSKHkf0SHFYuDCTV 7pIkPhlp4HoB3ncG9yiP4eVVeHFlIW6mgO8Tf5pjFgetelmX6BbAMqTjWCctB9PsTkZXYKuNgxJRN uHg6uhPUkPbYMFDce5tJKNc4Lpj/iDiPuoMx6Ow6dcMxy9P2WrjPMu69IxwXitegFFXDwrad/YNPQ MwZKF4HWnrYrqJxzlrFbSVMDVyBDs9D+zBlaaH4mT2OUuo8suox3TRfXZqMD1W2GYR6JERWkGlMxB uj4TacOEtinDVmwGByMpkFn0YRLSDPDQtwYtOvR2bodw7djt7lUkuZZ0SR3NvUy7nYrjjb73q41oB 6K8BEkMA==; Received: from 77-249-17-89.cable.dynamic.v4.ziggo.nl ([77.249.17.89] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.98 #2 (Red Hat Linux)) id 1tNTk0-000000060g6-0gqq; Tue, 17 Dec 2024 09:19:44 +0000 Received: by noisy.programming.kicks-ass.net (Postfix, from userid 1000) id A0B1730015F; Tue, 17 Dec 2024 10:19:43 +0100 (CET) Date: Tue, 17 Dec 2024 10:19:43 +0100 From: Peter Zijlstra To: John Stultz Cc: LKML , Joel Fernandes , Qais Yousef , Ingo Molnar , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Valentin Schneider , Steven Rostedt , Ben Segall , Zimuzo Ezeozue , Mel Gorman , Will Deacon , Waiman Long , Boqun Feng , "Paul E. McKenney" , Metin Kaya , Xuewen Yan , K Prateek Nayak , Thomas Gleixner , Daniel Lezcano , kernel-team@android.com, Connor O'Brien Subject: Re: [RFC][PATCH v14 2/7] locking/mutex: Rework task_struct::blocked_on Message-ID: <20241217091943.GL35539@noisy.programming.kicks-ass.net> References: <20241125195204.2374458-1-jstultz@google.com> <20241125195204.2374458-3-jstultz@google.com> <20241213232214.GA17501@noisy.programming.kicks-ass.net> <20241216165419.GE35539@noisy.programming.kicks-ass.net> 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: On Mon, Dec 16, 2024 at 09:01:24PM -0800, John Stultz wrote: > > Specifically, slide 27 talks about a modification to try_to_wake_up() in > > order to force the task into ttwu_runnable() such that it then hits > > proxy_needs_return(). This latter part I can find, but not the former. > > > > /me puzzles > > So the slides actually have links to the code at that time, which > should be the v12 series: > https://github.com/johnstultz-work/linux-dev/commits/proxy-exec-v12-6.11-rc5 Oh, no the reason I looked at -v7 is that I thought it was the most recent one. This github piece of shit lists it as the first 'proxy-exec-v7*' in the branch pull down with earlier version below it. Only if you scoll down further (which I didn't, because why would I), you'll eventually come across 'proxy-exec-v14*'. I'm looking forward to the day where the web implodes under its own incompetence, urgh, web sucks.