From nobody Sun Feb 8 11:43:20 2026 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 D9AAA3101B6; Sun, 25 Jan 2026 22:49:23 +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=1769381363; cv=none; b=HBtTn94TAqjwcj8mP64g7lHpaJ1b9OQPrYQQ0AHAjqO0I8WYResvMl+QjwE7XUS+QB5B9hBCrzgz1gnEfIh43ZraGwnv69iGUn6Wtscyrq2+v2qhhpZeJXgumAj6uZnokGhp0zwNTM9MqCtPJyBwHxABvrxE794swY5THFhKit8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769381363; c=relaxed/simple; bh=FTfdEWcmOb6DfQTJTbI0bpXWltHwgECxQBbZ31X7mYQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=f+0+CRCN5tMPboRP1M1Da8B6LZEZOoNb44Cq0td6GNcK4+JGMvwDi0Sr7XDS9oioL1kxzB93tIcQ2LVsDKRMNQ+urFaBKXeuNC8pEipWj2ihCxtFqv6nOyG14J4cwR8jE4SXronuPnqlRA1t9lbPOsQ5Hwonb783a3GFfKkyDOo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=XMcxUM+y; 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="XMcxUM+y" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3246DC4CEF1; Sun, 25 Jan 2026 22:49:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1769381363; bh=FTfdEWcmOb6DfQTJTbI0bpXWltHwgECxQBbZ31X7mYQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=XMcxUM+y8zwl/B5ZM6qLijBt8PpVzUJS0ExIUBKq3Pr+17yI5eqE/DCk5K6IogDpS Ab5JmBSmKO/xfwevciVu/DgjXNBby/p8gmQt/uKmdvW8Ancmg5iqtWzVB3zrIfw5pE YFZKtfsQXGdGrjJwts8JwDPOPuFQayB7+WXHoA7HGXODt67y9xqFHadzm2HhPXJfXs uVGbVjNmEJhJLkM5BHC96duZkXOf3U67tMM4mhZmATXQzZtn5gV899YzmyEo+5j9vC ZagSay65D2aX5KHjsbzu6IqSMfxRclXF+CE/uLzvxe/xC2rRaTuY06nyCNG9DDAkTY UBg8IBX+vc7VQ== 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: Sun, 25 Jan 2026 23:45:33 +0100 Message-ID: <20260125224541.50226-27-frederic@kernel.org> X-Mailer: git-send-email 2.51.1 In-Reply-To: <20260125224541.50226-1-frederic@kernel.org> References: <20260125224541.50226-1-frederic@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" 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 Reviewed-by: Waiman Long --- 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]); =20 current->flags |=3D PF_NOFREEZE; cgroup_init_kthreadd(); =20 + kthread_affine_node(); + for (;;) { set_current_state(TASK_INTERRUPTIBLE); if (list_empty(&kthread_create_list)) --=20 2.51.1