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 95A0BCCFA0D for ; Wed, 5 Nov 2025 21:07:13 +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:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=KF8V9p4xO/Aw0b7kAjFceNGTPOTtKngphfeUE9C2pOo=; b=zEIw55gSIZPU1OtuXfP5uUqiUC e6/ZOqmOAbjsoc82JCxDf2Uxk/ChHYOvhnMlCVU0cDpxQKPB1hQXJCZqy2KRcMA2003LSI5hXNnaP 0k/9UUOqOoJxz9wk/P52nU2BI76THDq1/Nub5GPaeT7tk+I1GcfwnZ1iF5GjP9VWv+yxLpubrVX8y rJHe/sIt6CqaoWt5SX+CcvzhAVbz31+zea8gVkhWRQHFoJrTe8x6AcV8WQu6xCF20ityj4z/0bRcX RO92t1rlVHBYIWaOMnw4gCZyswqbmhgYzqLxzOw4lZ1LSkD/JL2vnWpcjcsXyxT9Ba0T5uUXY9DW6 5AC18DBQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vGkig-0000000ERjU-2wlc; Wed, 05 Nov 2025 21:07:06 +0000 Received: from sea.source.kernel.org ([172.234.252.31]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vGkie-0000000ERhg-2gV9 for linux-arm-kernel@lists.infradead.org; Wed, 05 Nov 2025 21:07:05 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 3A6E141ABE; Wed, 5 Nov 2025 21:07:04 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8D8A3C116D0; Wed, 5 Nov 2025 21:06:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1762376824; bh=Edp/l5R7ShU52gSdBQzYrc5ERchBT8H20BRz7+yt6ag=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MPSSO0ldnwPIBE+qLDpp1WsWWdAtLlye9zEuu09MzwKOcsHq9395lCttXRPZS6Oy2 QOn05QDbGG/4CbYqnqKtnWdiOdxjEzs+mK9npTMOPEuZDA9bFtQETVdHAEUjsc1pzA 1pTFXjXqxdXU9XG1PauidLdVW/EBkGM/kCy4qCxc4IXzIWW3k1VFeMsW2ydpAdJHBt Fo8USBYiZkFbocLeiLzW5xWCg3f66bfqZH9ozdEguU4zJotEVsfyX0yDrIyfWA2rfO L/ATG9JJoKL0bxr5s86A7QA3/4MQD5/SOhQwFxy1r/vPat5+JRw+rwnuJO9VjzTpvR glGPUoTcVb2NQ== From: Frederic Weisbecker To: LKML Cc: Frederic Weisbecker , =?UTF-8?q?Michal=20Koutn=C3=BD?= , Andrew Morton , Bjorn Helgaas , Catalin Marinas , Danilo Krummrich , "David S . Miller" , Eric Dumazet , Gabriele Monaco , Greg Kroah-Hartman , Ingo Molnar , Jakub Kicinski , Jens Axboe , Johannes Weiner , Lai Jiangshan , Marco Crivellari , Michal Hocko , Muchun Song , Paolo Abeni , Peter Zijlstra , Phil Auld , "Rafael J . Wysocki" , Roman Gushchin , Shakeel Butt , Simon Horman , Tejun Heo , Thomas Gleixner , Vlastimil Babka , Waiman Long , Will Deacon , cgroups@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-block@vger.kernel.org, linux-mm@kvack.org, linux-pci@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH 23/31] kthread: Include kthreadd to the managed affinity list Date: Wed, 5 Nov 2025 22:03:39 +0100 Message-ID: <20251105210348.35256-24-frederic@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251105210348.35256-1-frederic@kernel.org> References: <20251105210348.35256-1-frederic@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251105_130704_716680_1128FE68 X-CRM114-Status: GOOD ( 11.60 ) 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 The unbound kthreads affinity management performed by cpuset is going to be imported to the kthread core code for consolidation purposes. Treat kthreadd just like any other kthread. Signed-off-by: Frederic Weisbecker --- kernel/kthread.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/kthread.c b/kernel/kthread.c index b4794241420f..86abfbc21bb0 100644 --- a/kernel/kthread.c +++ b/kernel/kthread.c @@ -820,12 +820,13 @@ int kthreadd(void *unused) /* Setup a clean context for our children to inherit. */ set_task_comm(tsk, comm); ignore_signals(tsk); - set_cpus_allowed_ptr(tsk, housekeeping_cpumask(HK_TYPE_KTHREAD)); set_mems_allowed(node_states[N_MEMORY]); current->flags |= PF_NOFREEZE; cgroup_init_kthreadd(); + kthread_affine_node(); + for (;;) { set_current_state(TASK_INTERRUPTIBLE); if (list_empty(&kthread_create_list)) -- 2.51.0