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 4E8F2307AD5; Mon, 2 Feb 2026 19:56:40 +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=1770062202; cv=none; b=g2+HPYbPaMOgiVFsMVpfhL52l+zV5qpPdZEP0IFd1fg7Yftg94NRcbOXfEfvtoJkHvmXUh3U8UaMG5bGPjuTSoM+4t6OYZrCJbXKUlPr/titEW4F+FDIE/FjETtijQmFvEb/Tt0rj0uf1vevjtE4nHfJFfswxTFqLTr3MQWw6oU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770062202; c=relaxed/simple; bh=zSIsEFNK/7Q5Oglr9HTeAQBH6u73EqPK/TZl5btnytE=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=BxT2+gBQ+ANehTg5QaSalkFoe7r0RDgCcLaJe826COkI+guKf18yYa4hvvrvlJ09tE1rtrGMN6BiALzpmzMzgCIs0o5MHarmJm0oijQaxeKCwMl+MEKtJpMoZ0YVKrtVncq7kX5sqO0165Aym/WRLzAfD/oo69PpOjNE574tTeA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (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=SxfuBidX; arc=none smtp.client-ip=90.155.50.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (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="SxfuBidX" 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=11T5unwckm8GnVZ0dI7RwMN5iyMPM+EwlC6O/7MQIQM=; b=SxfuBidXBjPN49wG28a9ubQUVJ Fd3xDeJRn21xNXFbZgAxDyWRZwjqqAO5VE8BN6ZWr04OmRZuYN812chH0rWPE/p7gJM59MBMhWtWn vPqnQosBeLicHcs42BenLk+pDzaEO8ud5DvuOTlcmbASx/E2IvrIm5Q/iB0LdfIpleLPEVNLBJ717 iqM43xx9GDRvhN/9zkJkZgdkpoqrDzHqCAJwqEji/BH8dRKlGrXfK6w34nV1GDpvt9iNx7YY2wvjB Hc7TUe/0D8UIbW9EtUt1aHFGzYxs/aNXvoRZB81DIPtC3MA+e2ZKKJu0/Igd+R/zfOkQSsv1IU91m WW91OUHQ==; Received: from 2001-1c00-8d85-5700-266e-96ff-fe07-7dcc.cable.dynamic.v6.ziggo.nl ([2001:1c00:8d85:5700:266e:96ff:fe07:7dcc] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.98.2 #2 (Red Hat Linux)) id 1vn02F-0000000GzVD-1xxd; Mon, 02 Feb 2026 19:56:35 +0000 Received: by noisy.programming.kicks-ass.net (Postfix, from userid 1000) id 03B8D3008E2; Mon, 02 Feb 2026 20:56:35 +0100 (CET) Date: Mon, 2 Feb 2026 20:56:34 +0100 From: Peter Zijlstra To: Tejun Heo Cc: Andrea Righi , Ingo Molnar , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , Valentin Schneider , Joel Fernandes , David Vernet , Changwoo Min , Daniel Hodges , Christian Loehle , Emil Tsalapatis , sched-ext@lists.linux.dev, linux-kernel@vger.kernel.org Subject: Re: [PATCHSET v12 sched_ext/for-6.20] Add a deadline server for sched_ext tasks Message-ID: <20260202195634.GH1282955@noisy.programming.kicks-ass.net> References: <20260126100050.3854740-1-arighi@nvidia.com> Precedence: bulk X-Mailing-List: sched-ext@lists.linux.dev 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, Feb 02, 2026 at 06:45:29AM -1000, Tejun Heo wrote: > Hello, > > On Mon, Jan 26, 2026 at 10:58:58AM +0100, Andrea Righi wrote: > > Changes in v12: > > - Move dl_server execution state reset on stop fix to a separate patch > > (https://lore.kernel.org/all/20260123161645.2181752-1-arighi@nvidia.com/) > > - Removed per-patch changelog (keeping a global changelog here) > > - Link to v11: https://lore.kernel.org/all/20260120215808.188032-1-arighi@nvidia.com/ > > Peter, Ingo, this patchset has been around the block for a long time and the > remaining deadline and debug patches are reviewed and seem fairly isolated. They're in well enough shape to merge I suppose, although I think there's still a few issues to fix. Notably I think it would be good to not have the scx_server consume dl bandwidth if scx isn't enabled. And I wonder about that start condition. > Given that the patchset addresses an on-going issue, I'd prefer to land the > series before the merge window. If you want to route 1-3 (or the whole > series) through sched/core, please let me know. Otherwise, I can them > through sched_ext tree. They seem to apply without issue to tip/sched/core, so if that works for you I suppose I can stick them all in.