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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 008CECF6A86 for ; Thu, 8 Jan 2026 08:44:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Date:Subject:From:To: In-Reply-To:References:Content-Type:Message-Id:Cc:Content-Transfer-Encoding: Mime-Version:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=N1FuXjS01s3YMgMgzoZhF0uCB3O/s+D9Jm9fJvlCcWo=; b=SpZ6C/V1PNoz91ajpKIjT0cUev FVVAfA3dAbQcYiTkjsJnLwXucg/gkiBT/Dagm7QqwInI5vTpCno37gdf/cEeL6XvsHWGrpdQvzg7x wL8tlu0S7bT4LEr35pl5kRnHqVTqXaNoPFx+KDJIGz8OrILOEteqM26w1u7MXnL0klaa2+G2lrz8F 9nf4XoSjLCvj4wtLZUJQe0oNpfUhqB/udb4Cdzj+0BveIrmYsY31EgeIeMMAXy4y4laDwXrRkpQL1 RgWpZUqLJbGKtrQgYdoZenoIchi7G0N2W5RgyiuWLZqI7VeONLqUFwqvyapP5LlxJT5Dp6KD/vAKE EfC0NwDw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vdlcr-0000000GKZ9-2ots; Thu, 08 Jan 2026 08:44:13 +0000 Received: from sg-1-105.ptr.blmpb.com ([118.26.132.105]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vdlco-0000000GKXR-0vod for linux-arm-kernel@lists.infradead.org; Thu, 08 Jan 2026 08:44:12 +0000 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== Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Cc: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Message-Id: <20260108084326.1952-1-guojinhui.liam@bytedance.com> Content-Type: text/plain; charset=UTF-8 References: <20260107190534.GA441483@bhelgaas> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20260107190534.GA441483@bhelgaas> To: From: "Jinhui Guo" Subject: Re: [PATCH 01/33] PCI: Prepare to protect against concurrent isolated cpuset change Date: Thu, 8 Jan 2026 16:43:26 +0800 X-Original-From: Jinhui Guo X-Lms-Return-Path: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260108_004410_486067_2B39A5B1 X-CRM114-Status: GOOD ( 14.50 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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