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[23.128.96.18]) by mx.google.com with ESMTP id l5si1521132edw.85.2020.10.29.01.31.39; Thu, 29 Oct 2020 01:32:01 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@linutronix.de header.s=2020 header.b=16o2mt58; dkim=neutral (no key) header.i=@linutronix.de header.s=2020e header.b=Fhnoxf++; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=linutronix.de Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730076AbgJ2AfS (ORCPT + 99 others); Wed, 28 Oct 2020 20:35:18 -0400 Received: from Galois.linutronix.de ([193.142.43.55]:57532 "EHLO galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731908AbgJ1WT0 (ORCPT ); Wed, 28 Oct 2020 18:19:26 -0400 From: Thomas Gleixner DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1603876992; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=i5h54ImH6QJnWv+pnH/pUe+ysdZ+UDbypp8NpenJpcY=; b=16o2mt58pNs1ppmwKXR6a3Pzo7yfDTy8DtHs4A0bSkAKa6cO/RmW5kdJEMcta7+B9rGN/s FnLlr3dgXPGDKKeYL13G+9cyBBgxXoDjwUSlKKLqv+/N3oCQBqXq2G1goEs8ZCF/dyiQzl Iq//hFBJe3xdj6LRogwkVt96VDjvjcCiXOlLjqY3pHcUNk+uBOs/oOWjfvOAqVTJgVwIBi 6972nK/vNP9f4QYz95ZAjB0pTVJVqMUEHlPNMGg22erUzL/uUDg4it0kgMHSekirMZUGnU PuibDY8ZDr4lBp4fv7Y6uuMWZwhHu1kvz8wHsBpftDjNwGT0trO+z5NpH+69rg== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1603876992; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=i5h54ImH6QJnWv+pnH/pUe+ysdZ+UDbypp8NpenJpcY=; b=Fhnoxf++H5mk/R2NV5enmRaqWm1Gw9+tsy+/X7zfBcXN8GI/DDYnsx/bmVhnnjPC7DaU0g Nm4cGzez4TaYjfBA== To: "Zhang\, Qiang" , "pmladek\@suse.com" , "tj\@kernel.org" Cc: "akpm\@linux-foundation.org" , "linux-mm\@kvack.org" , "linux-kernel\@vger.kernel.org" Subject: Re: =?utf-8?B?5Zue5aSNOg==?= [PATCH v2] kthread_worker: re-set CPU affinities if CPU come online In-Reply-To: References: <20201028073031.4536-1-qiang.zhang@windriver.com> <874kme21nv.fsf@nanos.tec.linutronix.de> Date: Wed, 28 Oct 2020 10:23:12 +0100 Message-ID: <871rhi1z7j.fsf@nanos.tec.linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Quiang, On Wed, Oct 28 2020 at 08:45, Qiang Zhang wrote: > ________________________________________ > =E5=8F=91=E4=BB=B6=E4=BA=BA: Thomas Gleixner > =E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4: 2020=E5=B9=B410=E6=9C=8828=E6=97=A5= 16:30 > =E6=94=B6=E4=BB=B6=E4=BA=BA: Zhang, Qiang; pmladek@suse.com; tj@kernel.org > =E6=8A=84=E9=80=81: akpm@linux-foundation.org; linux-mm@kvack.org; linux-= kernel@vger.kernel.org > =E4=B8=BB=E9=A2=98: Re: [PATCH v2] kthread_worker: re-set CPU affinities = if CPU come online Can you please teach your mail client not to copy the mail headers into the reply? > [Please note this e-mail is from an EXTERNAL e-mail address] And delete this non-information please. > On Wed, Oct 28 2020 at 15:30, qiang zhang wrote: > >>How is that addressing any of the comments I made on V1 of this? > > Do you mean the following problem: >=20=20 > "The dynamic hotplug states run late. What's preventing work to be queued > on such a worker before it is bound to the CPU again?" This is one problem, but there are more and I explained them in great length. If there is anything unclear, then please ask. Thanks, tglx