From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f53.google.com (mail-pj1-f53.google.com [209.85.216.53]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D98F126F46F for ; Mon, 17 Nov 2025 03:05:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.53 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763348724; cv=none; b=rhL6boaO8toJPmVVwY9oQmtVJGt75EOpaX0UHEry56spVh9lI9BbNtWmlRlJmrGS8GM7WE8ruCt6LxU9amYgo8zJhfKamwpUX1mGXQ83fWQBVQX3Vn92WbRnoKE9O3q2Wx/vkEoei/Now8iio60Y/Gjznc5dv/5jAHdZZBrvzz4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763348724; c=relaxed/simple; bh=4V0icE/c5RY7aRB0twY4xODiQwD64rLiL+IY4WrdkTA=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=mivYgiAQh5kfjaxnjoAb1VhSUhCnL6Z6iF9yReX3PRkoNkYKW3uw+Urst089GIfdV1qdDVu4da4Mutr9pid5h0tG8VpbmY081evo6IineX+e1j2pS/CIfBEaPmBiNKcgKIfLqilN2MTi8YPNEbjp188+acIqygYB+oOQMQXE7Io= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=SWMxD9Aw; arc=none smtp.client-ip=209.85.216.53 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="SWMxD9Aw" Received: by mail-pj1-f53.google.com with SMTP id 98e67ed59e1d1-3438d4ae152so4839391a91.1 for ; Sun, 16 Nov 2025 19:05:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1763348722; x=1763953522; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=r4NRlubsWHjxhANY6lr5XrhFqcEU/jx6lrExbBPFwtE=; b=SWMxD9AwvZBh+2CIEaS86EWvS8S6G5jDzvrsdOZj8OW3K+hFbz177U6oqx8as+UqHT Gmqs4nJXnYYWxuQGouZeK4HA2zEGjGCjzsS+tUgYPedwu80IPx++T7971rKS2fSGeTc2 ajqaBmnN3P4k8PRJFsUT6Z0S8BUPHf27rVOT40rKmq985JVzHt/JWbgifmkqsJ2qJMLn LQoph/SIsQ1H0rZYesjOB+JMU5EN0r4qp4xWju2jAOlIezWImdhTVayIc6C1p7NkWWyj Wd4vw9j/9n5BOLwOWN1K88QuiJlqQX312Xx5cmFyMgJz1cnod/tFDzCAF/JLqbejf2pq /4Hw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1763348722; x=1763953522; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=r4NRlubsWHjxhANY6lr5XrhFqcEU/jx6lrExbBPFwtE=; b=GnGKeBe8TyzOu5SvAhDrL1aqSjDZEZIVeTglLxNSPCZNuOM/B968izG/95SXCl+Iv3 /0UiZ3dSgNGUetKT0RF7mVQVd133hG2LiNJk90U/RfMODQEqn6lrYE34nDD5FSKHpwgg h3SdCSt0I5/9l+Idaqv27Ke2GM+Z73vInBc0C4htTGlpRG0CZCKeE32Lrjsr2DFT2iVU o+4ttfhSqkekg+SSMiiNf/6UtRWqXseeE3GeeK2uW6TkdZWyqqPttWECVjQ+6Gvv4FlN vw9hTN1M1NSj4gqUB2qoTDQLG5LaDcywJpGywXElOQ+vDc7UbJtJ177QsLcjFukMOAkO 40Pg== X-Gm-Message-State: AOJu0Yxo5JhD42vwzqmQE3fJRByGL58/w+70Hy2MZ+kuE0Q4J7iwn38m r38Fg0zT+rCjKFk0tpV9LuS3clOUGTPluXLmWCgXT1NJOc0a1eRdGCKHyy5iUqAl X-Gm-Gg: ASbGncuScv1ZczMctw7AeBZLKkPCZesBx9JMzz/vMqaQJyFDoej8LxK9NA9crOaCn0M qeiwzyST5nV+olMdlUA6jYizxgxybebGFe5XURLtbeiPhQPsHmGQ3xpxzmBWdXZ68K31h4GcPdu 3fvT0AYq3yeQVuDR9wYnA4IrD/yi8gwKP33WCWjZMTKtZ9zXtI+zAMmbifwJE5GSPhoXyXxR3kI wLYX1QlLVcXpXVMxS7T5cJR2wrebV3Kw7UFsYs8kgYbA66BEzUvTdBzoDOeHPykXNzFbNZNj38z wCvmMbHCn8vZhf7c4dToc6c0LJbRjTiIYhyU9+z+CprGxr+WxFh+UxneLX8jl3EGVb0/KPnK3oz QL7g/4iW4oJC6T+lbcSztJftAVarf2vSb9eioYscfh9hIRSiM6Fr0sVpms6RQwwY1bryziuRIW7 Bo X-Google-Smtp-Source: AGHT+IGh1Vk+U4XpV66ntlLT9J5V9yvD3QJny63i8cRvZWl46jwymObKqQGBjHaFA8lJx+0tBfIudQ== X-Received: by 2002:a17:90b:42:b0:341:194:5e7c with SMTP id 98e67ed59e1d1-343fa633686mr12589122a91.24.1763348721729; Sun, 16 Nov 2025 19:05:21 -0800 (PST) Received: from localhost ([240b:4000:bb:1700:7b36:494d:5625:5a1]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-343e06fe537sm16284956a91.2.2025.11.16.19.05.21 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Sun, 16 Nov 2025 19:05:21 -0800 (PST) From: Lai Jiangshan To: linux-kernel@vger.kernel.org Cc: Lai Jiangshan , Juri Lelli , Waiman Long , Tejun Heo , Lai Jiangshan Subject: [PATCH 0/3] workqueue: Cleanup affnity for detached/DISASSOCIATED workers Date: Mon, 17 Nov 2025 11:09:10 +0800 Message-Id: <20251117030913.3084-1-jiangshanlai@gmail.com> X-Mailer: git-send-email 2.19.1.6.gb485710b Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Lai Jiangshan The commit d64f2fa064f8 ("kernel/workqueue: Let rescuers follow unbound wq cpumask changes") updates the affinity for unbound wq's rescuer. Do extra cleanup to make it more consistent: consistency with the workers: * Not for attached rescuers which are managed by pool's affinity * Also for PERCPU wq's detached rescuers * Also for DISASSOCIATED pools' workers * Also for newly created rescuers (starting from without attached) consistency with the affinity: * use wq_unbound_cpumask in all the cases. Lai Jiangshan (3): workqueue: Update the rescuer's affinity only when it is detached workqueue: Let DISASSOCIATED workers follow unbound wq cpumask changes workqueue: Init rescuer's affinities as wq_unbound_cpumask Cc: Juri Lelli Cc: Waiman Long Cc: Tejun Heo , Cc: Lai Jiangshan kernel/workqueue.c | 30 +++++++++++++++++++++++------- 1 file changed, 23 insertions(+), 7 deletions(-) -- 2.19.1.6.gb485710b