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 ED965E75453 for ; Wed, 24 Dec 2025 13:49:29 +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=PccGRd2au1n9nQvEk/PkCGv+alNBYU7VP4ze/r44x5Y=; b=JMkWf9mGbAchJS9bimdWyybsjM 60b67e0WLrBiHK1av8rjpUuGIJdDOHgs/gXGTAKCMRGnnX5/jNtu8LEfQ8hHZT2qK5FTSkfWaoNUo 54OyMquC6saa0aj2ju4iSBkNp4Ed20kDpAxXGRNCHGUJopf26Vz+UrZqXJTThYgXOIXHPTfkgJtSL g+IOYx7JJBCS0FiwNBuRI0IN+HUYkooA1R6W2V9jiEXPVoTq7bUMFejfzsjSSbVIDKVdhgCa2JC27 bLbCDZdsCWMdHcCzcngGcqeY0kgD5NrcPaTgl+MPl6UwJFJQLNnFgWOMUvXibg1i70PDw5+TwSi8H vZ0BTpYQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vYPF0-0000000Gu02-2PoV; Wed, 24 Dec 2025 13:49:26 +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 1vYPEp-0000000GtpV-3EIf for linux-arm-kernel@lists.infradead.org; Wed, 24 Dec 2025 13:49:18 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id D2DFE42AE4; Wed, 24 Dec 2025 13:49:14 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 13500C116D0; Wed, 24 Dec 2025 13:49:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1766584154; bh=ET9jXr6f8rYkms9GJeHVMFbu3UaE384JPmUpmT08RPw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=pgF3cVS0eJtNZMorkjrgR3meGVoRMugAE/ejv7L856w2ip4rnxxFZ/DWN2tlLXOGT v8Kei6N9Lo5DcXVWOoQ4ihl6Bu/gTc5tR6DZVcTW6J7jBGZeMlIrHxJM1rEGA7zy/E rKAj1xBv+OQtbZA/FKdkPFzn1Ye7AZ3K621W6USFmD0VuczWW5sgVQVZo0jWZBDCHY G5ZRFlrcgb2lJgHXDO/qJPXat+r5fs+ldhywnnN5lSwUNyYRbhinC60Jl4nHAK5Fdq 754ol3zLD6Wxw3ivQMgefbGMNMVawtO7f5SKRLSKPLdZ64PT+ph3MiInUpai34k4bk PoF8H5N2VPtPg== From: Frederic Weisbecker To: LKML Cc: Frederic Weisbecker , =?UTF-8?q?Michal=20Koutn=C3=BD?= , Andrew Morton , Bjorn Helgaas , Catalin Marinas , Chen Ridong , 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 26/33] kthread: Include kthreadd to the managed affinity list Date: Wed, 24 Dec 2025 14:45:13 +0100 Message-ID: <20251224134520.33231-27-frederic@kernel.org> X-Mailer: git-send-email 2.51.1 In-Reply-To: <20251224134520.33231-1-frederic@kernel.org> References: <20251224134520.33231-1-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-20251224_054916_199143_D0978E8F X-CRM114-Status: GOOD ( 11.03 ) 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 51c0908d3d02..85ccf5bb17c9 100644 --- a/kernel/kthread.c +++ b/kernel/kthread.c @@ -818,12 +818,13 @@ 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)) -- 2.51.1