From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-qv1-f73.google.com (mail-qv1-f73.google.com [209.85.219.73]) (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 29A862853F3 for ; Thu, 30 Apr 2026 02:36:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.219.73 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777516592; cv=none; b=f4R1yBawzkSSA8XYzK8FDqk47XXjwupRYAoay1HSVFPJ5RkBP9fAG1E2DEOSJ1LWBahyN34lQ6z2RUx6KZIBLVaMmxkY3N2W+qSCAV57o2FGcWJx+puYzNoLW3Ox4lpcpZvD9T2DJF38vdCDsMWEnyDUbAs8FUpQ3E57ARcMDw8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777516592; c=relaxed/simple; bh=z3UFk9DXs9/npEsMInOp5FxYmpvj18QiiM9uzHepGmw=; h=Date:Mime-Version:Message-ID:Subject:From:To:Cc:Content-Type; b=rlL0becFwqAxmcFcQlRg0NeQEmIu34sToKrYx5wPZJvqT25SpAvqrw9vZzgPxyydzBNOgd/2no3FcT7+itAql94SO3VDue6S9hxo7VCeZkB33+vErARxat20i+VL+XaYVSh0cBCKmlhJYbFrxs29m5DL5WXR++6nYyw9MBWo9vU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--edumazet.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=LKWRDhVb; arc=none smtp.client-ip=209.85.219.73 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--edumazet.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="LKWRDhVb" Received: by mail-qv1-f73.google.com with SMTP id 6a1803df08f44-8aca4660827so13448846d6.3 for ; Wed, 29 Apr 2026 19:36:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1777516590; x=1778121390; darn=vger.kernel.org; h=cc:to:from:subject:message-id:mime-version:date:from:to:cc:subject :date:message-id:reply-to; bh=oCWVLnOfJ6oLkzlLj6HLhBZ5ZOfcOhnTya7EkvSjzy0=; b=LKWRDhVbE+pfXtACPIuJUnGSon35Wc44N1R/HngY5g/ZkiwsgCJ95JtQcqyDDuJna/ LpHkabu78KuKGTWNTlRe4src603cMBmygxJIWUUV86Zr2hujIDdY4Rt9HVl7Uy/FaF22 /9EM0DVFac8ztuPz6Aj3teffQlrKV7l50H/YY79/IMqiPz24YxElDpcuzXcCJjaQZs3G JxSZ24RjqneVL6UyOggJHbcQAlNZ5RhJli10i+/HZYfHiHZ3kvjc5tztz9UOsNPjUG5Y Y6eSpzGIHLYOt/gruX2Q38nyMdOYzfUOlk6lAimpBt96IQqgX0WudEvI2pWEeVJ03kg7 1/pw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1777516590; x=1778121390; h=cc:to:from:subject:message-id:mime-version:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=oCWVLnOfJ6oLkzlLj6HLhBZ5ZOfcOhnTya7EkvSjzy0=; b=gX750dZ4uozfojZKjziK7hj39fZAHhfBBPCQnprJjZI5reerpzIrR1tfDt3qpLFBx2 25mtgtfcuYXVKa+U153sv/5BGTfiCGxXrg2ylkAG3pPs0z3S1FBr95jYKLR9uuoKussR 4bTAof8kQHN2ZEhi1fMCJtPIY4vJxxadZNm3qOzjgCKHuygZ1bAwLMuBcWyDAh8s4nup hQkh4ezJhdmvlh4ZTM6JhufKYu7MQayNxVJ00UDKr1skK7MOzbg3dCXtifj+B5QagBpg gbJJjKUxMlrKOJwWa8UMr/ItLq1uMlusXcZS1Yhi+EiBSCg1AXlSyX+I2dFrwkMGJgiy FCZw== X-Forwarded-Encrypted: i=1; AFNElJ/i2mjiTFGVtJPEPo1zZCWtn/iRWNo+eGBy9O8YWqrFAHBnnBRSVMJgAAxtRk5lpJOv5JbAQ/c=@vger.kernel.org X-Gm-Message-State: AOJu0YxpVJ6yglNmdrAuMegrsE+a2C1F1Pkw5ZZg8ebzd4KsyTiv9Yaa dbxWdpcsUvR9ggGcgNgWiX5YSRM2MqF1H4/R81hjMALiNWsNIryLJgzbFWDEie7CmpB9Av6G2DJ 5CbTJtUufQcJR2Q== X-Received: from qvab10.prod.google.com ([2002:a05:6214:610a:b0:8ae:5fcc:a3ef]) (user=edumazet job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6214:3d9e:b0:89c:e7d5:4b20 with SMTP id 6a1803df08f44-8b3fe765fddmr17789536d6.15.1777516589895; Wed, 29 Apr 2026 19:36:29 -0700 (PDT) Date: Thu, 30 Apr 2026 02:36:24 +0000 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 X-Mailer: git-send-email 2.54.0.545.g6539524ca2-goog Message-ID: <20260430023628.3216283-1-edumazet@google.com> Subject: [PATCH v3 net-next 0/4] net/sched: tc_dump_qdisc() optimizations From: Eric Dumazet To: "David S . Miller" , Jakub Kicinski , Paolo Abeni Cc: Simon Horman , Jamal Hadi Salim , Jiri Pirko , netdev@vger.kernel.org, eric.dumazet@gmail.com, Eric Dumazet Content-Type: text/plain; charset="UTF-8" Before converting tc_dump_qdisc() to RCU, we make the following changes: - Use for_each_netdev_dump() instead of for_each_netdev() - Only dump qdiscs of a single device at user space request. v2 and v3: addressed Jakub feedback (thanks!) Eric Dumazet (4): net/sched: propagate tc_fill_tclass() error net/sched: tc_dump_qdisc_root() refactor net/sched: switch tc_dump_qdisc() to for_each_netdev_dump() net/sched: speedup tc_dump_qdisc() when tcm_ifindex is provided net/sched/sch_api.c | 127 +++++++++++++++++++++++--------------------- 1 file changed, 67 insertions(+), 60 deletions(-) -- 2.54.0.545.g6539524ca2-goog