From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-vk1-f201.google.com (mail-vk1-f201.google.com [209.85.221.201]) (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 6515C31A81C for ; Mon, 18 May 2026 10:01:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779098503; cv=none; b=trIIpscy1FfeWaCufZxzWKB/MVCzONP1GITs3OmLo4HF6RskQdRvBG1fSrgyU6hMP5DkF49KWRT/0r8CTKNvYGCGUxqR/gxV76pVLIQkDwXefDhDGdTNshqZvgv5jkL6ff8YxXq7o6hzR5DZ1E2YSUQ50hNimqQ7Jw/8vhkw5qc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779098503; c=relaxed/simple; bh=yDHTUnUfDdoEzAxgmVSBfa5EK5ubRDXSb8RjZRVELrY=; h=Date:Mime-Version:Message-ID:Subject:From:To:Cc:Content-Type; b=p59JgoizMcRbVf45jXcQIy3sDNwZ3nYtlRs0w/OYf/oYmFLbXhEadUx3P4U47rpyh3qnIRGUrRvjegMvb+glWqdHM4j3VQvMfZ0wYKmImUXcvmD3RKc4nplteXWLGEwaJImqP8XkL96BsM3JTQLi5aCQfNLzZOmdNpGfLSY8wo4= 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=ChRdRFkH; arc=none smtp.client-ip=209.85.221.201 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="ChRdRFkH" Received: by mail-vk1-f201.google.com with SMTP id 71dfb90a1353d-575b418c83cso590245e0c.0 for ; Mon, 18 May 2026 03:01:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1779098499; x=1779703299; darn=vger.kernel.org; h=cc:to:from:subject:message-id:mime-version:date:from:to:cc:subject :date:message-id:reply-to; bh=fyGiY2daxHKdAn6HM3W7HptPp7HNwwQRZG0TCAJK0iA=; b=ChRdRFkHenBncH+D4PIBYWsVLjQHzaESNi+qvpMXSMUDM8L8AzTceQTwVSvjnk4D6R iPT4ni1r0YTmCE8cnsvrTRt4/fW8DN3NMIfaB/gkMUQXOGQFwMsFOdw8/7SeoYPOPg0n 0lpUMvONpUJac/9QUgCFizaI3SEYnRPDQZk5WZdJXESgp7jHzReJc0fb40MSD9bWVLcd alc72QcYINeXgfLd4u/69UmEcJkxxLTQwaXJvcKHSFS8vE+p1tdmUHkF3MltxJ4cU62+ 5XhFp7cIAg0oVT7Ubou+u/+IUFbcsVbO//GPIclpKnhyw+pSIxDv7zaYk8TKNr5FxJwh usjQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1779098499; x=1779703299; h=cc:to:from:subject:message-id:mime-version:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=fyGiY2daxHKdAn6HM3W7HptPp7HNwwQRZG0TCAJK0iA=; b=TIrlLuIVKKM0eeKjcMzlbAy23EuMuHpJ47+LO3XjZAblPdDA2Chlp63wny/PC/lk8B xXD98FoGou9vBFg9YCGm2TKWI7CVyJvIGnn2gpzn+TB+uEdhpO7LxmDz54I36CdCXFl1 ex1FDzOF2BeHAQfGWsoyGaxQW+ox/qqOujJOTtPWIA5Z7xGJ3vwQEt7joi7Dzw81PUUn +8zfSOaVGdTiRzgiwc0bZmJ+qD76wBZ2d8VmxjdzZVZKBTSJzKP+jBqm//iHAnYKA0bA Hw9OdId9RssSjyoc5p/v7V/HpoECDejrosjwbJmp8mAgvC52x+x+XV2I5WeclJGciZ1Z 5c/g== X-Forwarded-Encrypted: i=1; AFNElJ9sKBMf3xTBtQdutMn3v05/J5Y2Yd3tW84lrBFoYvMR7Qj4V+PVnoqTEcgFg4m2Da1cglZbBns=@vger.kernel.org X-Gm-Message-State: AOJu0YxxpQL2LNy2YlCSQUk5y9UQjFXESrC2I5ZurS4Wt9umpZsN6ZTE oPlaO6wMEnD23vhBkRbcvROJZNyxhwxLo3oM7tSwxAwcZBk/Z6z4fw/ggZjbAIpqZcIUTI68XF1 hfR1TXwaQtTmq9w== X-Received: from vkc11-n1.prod.google.com ([2002:a05:6122:620b:10b0:56f:4636:3d71]) (user=edumazet job=prod-delivery.src-stubby-dispatcher) by 2002:a05:6123:86:b0:575:29ef:7df3 with SMTP id 71dfb90a1353d-5760c05e326mr6542588e0c.12.1779098495967; Mon, 18 May 2026 03:01:35 -0700 (PDT) Date: Mon, 18 May 2026 10:01:32 +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 2.54.0.563.g4f69b47b94-goog Message-ID: <20260518100134.809042-1-edumazet@google.com> Subject: [PATCH net-next 0/2] rtnetlink: RTNL avoidance in rtnl_getlink() From: Eric Dumazet To: "David S . Miller" , Jakub Kicinski , Paolo Abeni Cc: Kuniyuki Iwashima , Simon Horman , netdev@vger.kernel.org, eric.dumazet@gmail.com, Eric Dumazet Content-Type: text/plain; charset="UTF-8" Many shell scripts invoke iproute2 commands specifying a device by its name. This series improves their performance avoiding RTNL acquisition for their (repeated) name->index conversion. Eric Dumazet (2): rtnetlink: use nla_nest_end_safe() in rtnl_fill_prop_list() rtnetlink: do not acquire RTNL for RTM_GETLINK with RTEXT_FILTER_NAME_ONLY net/core/rtnetlink.c | 74 ++++++++++++++++++++++++++++++++------------ 1 file changed, 54 insertions(+), 20 deletions(-) -- 2.54.0.563.g4f69b47b94-goog