From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lf-1-131.ptr.blmpb.com (lf-1-131.ptr.blmpb.com [103.149.242.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0B650302CD9 for ; Thu, 8 Jan 2026 08:45:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=103.149.242.131 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767861928; cv=none; b=hFuCYLGd/0cVLhuvJSsAgy7fc4V/UEOSF4RKiF/gbvypPHrN6+17IYzv1GN+NFI7xtYVE7R6VP6+LbUiQv9+DukkWij1iB14CbkPCyD44OwwIjPUDNC+2AGrWjIdi5ncgu5pZP8RkAqHbZDVxaK6LOHA6grzt3mq6h67tg5JjpI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767861928; c=relaxed/simple; bh=8XAL+S3qR8EIc++riYq98GXTctvOfapL1gd1t4E9z/0=; h=In-Reply-To:To:Subject:Content-Type:Cc:From:Mime-Version: References:Date:Message-Id; b=mRaO6P82Ey55fYHieNpkqtYYME8WYbJPIN3goX5utkBVL0J8YTtzUkENMTXD+59h7KuVpDRyt0zg/d/G08VKxzD+e6wiQGvsfgO6WwPXMfcyPa4v2dfSBg5+VGMMVx25j8cUYayglUL+7An1CYOycPErt3lbd5HtBiOIQnzYgyM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=bytedance.com; spf=pass smtp.mailfrom=bytedance.com; dkim=pass (2048-bit key) header.d=bytedance.com header.i=@bytedance.com header.b=I7EVdV8+; arc=none smtp.client-ip=103.149.242.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=bytedance.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bytedance.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bytedance.com header.i=@bytedance.com header.b="I7EVdV8+" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; s=2212171451; d=bytedance.com; t=1767861839; h=from:subject: mime-version:from:date:message-id:subject:to:cc:reply-to:content-type: mime-version:in-reply-to:message-id; bh=N1FuXjS01s3YMgMgzoZhF0uCB3O/s+D9Jm9fJvlCcWo=; b=I7EVdV8+EOk9KvCmJ2bXtrKDnFFxQSlMQ3PDAEY+DGJZDgmBzdwHX0bFiCbNnRx8cpI9r5 mP/6+1GR4WW6p801cbjP5ynNt6mULVvbNzlk8IelP8eVQhtW0/WXeISYz0OiAIAClZ+ouA 4DVMrUmFIeGScfZm6Ygi4e5d4/+Az/ERBFY4+EV3OtSc0HdrhZEwgpxPqrpfvXd/f2GK1r /rHYz6iFmAGpTcmeeMMtAS7CWY9Y8QV5Nd3xQSyAiaVIeXhAhQAc4eWNApSBBaJMBuFq4T lSrGJDa5L7aJmJ35pXojg2S2tq3O8f/U4BkyzLulRHj3kETpAyfLbTg8Pz0rsw== X-Original-From: Jinhui Guo In-Reply-To: <20260107190534.GA441483@bhelgaas> To: Subject: Re: [PATCH 01/33] PCI: Prepare to protect against concurrent isolated cpuset change Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Lms-Return-Path: Cc: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , From: "Jinhui Guo" Precedence: bulk X-Mailing-List: linux-block@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260107190534.GA441483@bhelgaas> Date: Thu, 8 Jan 2026 16:43:26 +0800 Message-Id: <20260108084326.1952-1-guojinhui.liam@bytedance.com> X-Mailer: git-send-email 2.17.1 On Wed Jan 7, 2026 at 13:05:34 -0600, Bjorn Helgaas worte: > [+cc Jinhui] >=20 > On Thu, Jan 01, 2026 at 11:13:26PM +0100, Frederic Weisbecker wrote: > > HK_TYPE_DOMAIN will soon integrate cpuset isolated partitions and > > therefore be made modifiable at runtime. Synchronize against the cpumas= k > > update using RCU. > >=20 > > The RCU locked section includes both the housekeeping CPU target > > election for the PCI probe work and the work enqueue. > >=20 > > This way the housekeeping update side will simply need to flush the > > pending related works after updating the housekeeping mask in order to > > make sure that no PCI work ever executes on an isolated CPU. This part > > will be handled in a subsequent patch. > >=20 > > Signed-off-by: Frederic Weisbecker >=20 > Just FYI, Jinhui posted a series that touches this same code and might > need some coordination: >=20 > https://lore.kernel.org/r/20260107175548.1792-1-guojinhui.liam@bytedanc= e.com >=20 > IIUC, Jinhui's series adds some more NUMA smarts in the driver core > sync probing path and removes corresponding NUMA code from the PCI > core probe path. Hi Bjorn, Thanks for pointing out the series. I=E2=80=99ll resolve the conflicts and send a new patchset once this one is= merged. Best Regards, Jinhui