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 985BF34AB04; Wed, 5 Nov 2025 21:07:04 +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=1762376826; cv=none; b=qF666jAPbsgbJ/JnX7wOT2UKop/xfRD2UU/vI47NbYxAJysbCH/ZNb5wrGvi4EZkCGkO0rTQP4EZTfae+x4+iuKjLWHTI8C2RBC9nqMhlqigqlR9VUTIISPmi9Oxc5aJWqVxiFtNVj+Zn0zQHMoSLsnU225yFcyk5SDW4iayaaM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762376826; c=relaxed/simple; bh=Edp/l5R7ShU52gSdBQzYrc5ERchBT8H20BRz7+yt6ag=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=PZkxtXuQz+rJibvwij8WiGS9zIseakOVtODCWGJNJslDuOdx+5/jTqIXfl2Jzihdm5WblpEty8lApEnjhjZize8CiNUyPtHvk4PUet6DFesXQsDkOmJBtCckNnuO6NnUUsB7JGHJ0RspX7E0kG6Wvj73TWwTVCAjFbM0JTCD0ds= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=MPSSO0ld; 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="MPSSO0ld" 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> Precedence: bulk X-Mailing-List: linux-pci@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 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