From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 1F46C30AACC; Mon, 13 Oct 2025 20:34:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760387697; cv=none; b=jXIDBXpSPy7El1VKv+snysQZzkisLBLyxX7+RLF7lKIFm95LL8G3PPydPcwGNHO5vKcVm8rBL2stzL7yH947+FpTztsclJm0KG2i+MPtNDU9UTwOHXuZehYUTqST00fZiLQYEDKzYXXJmp4iQvjFyrOc6eq1e2uYNR55SSskHvE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760387697; c=relaxed/simple; bh=pzOS1AH2wHJHSLxWx9UNzEZr4fjsciwBuMuPCFGnunY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=rM2LZBQ0N4sggcKUF1Wj/wW4tAxHfvl+qeCcRA7VVbdGdeD2M47dD1GgGAYsQbDlsVbors1+89JUpOaOLssqIQ3grwJT6MJTYGFkDyueeWOXnmCRyrWl13KQ+Z0oGm+ROnnAeiC9/LgudvPsyRaZPIvn41rULI6Wh78/XQFFOhU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=u4POBJV8; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="u4POBJV8" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DB20CC4CEFE; Mon, 13 Oct 2025 20:34:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1760387697; bh=pzOS1AH2wHJHSLxWx9UNzEZr4fjsciwBuMuPCFGnunY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=u4POBJV8Q0FYAriEUpqMBAwcUBtO9Ks+qUN2STRweeoy5m/JKlJepbuN1MXuQsKNJ tmaonk/Nc31OweK/JMses9BdyC7b1ULpJLkElOYpV6EBqpWRnPU3NC0nWTBtzAaN9h mm5J6raV5dmzXFtU3FdYlx5TsNUj3oLFgVRbAabCHBPzNBloUXUldJ4QpunsiBoE+a Cr7Z7DfzVjv/pvCbP3VNnAeBhRi8KZpXAvj18LiIvZQUz1RXQUX+joCU2bzRpMmOng EnSyK7Uijn092Jdb2o2dcpRQGVjI9xPT9qNJeUGoNK974o/GVvTOfwmu7hxYaVZlQU kI4eN3Qob4oJw== 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 23/33] kthread: Include kthreadd to the managed affinity list Date: Mon, 13 Oct 2025 22:31:36 +0200 Message-ID: <20251013203146.10162-24-frederic@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251013203146.10162-1-frederic@kernel.org> References: <20251013203146.10162-1-frederic@kernel.org> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 cba3d297f267..cb0be05d6091 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