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[2620:137:e000::3:6]) by mx.google.com with ESMTPS id y18-20020a63fa12000000b0057759a5b7c6si6698011pgh.62.2023.10.14.06.08.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 14 Oct 2023 06:08:54 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-nfs-owner@vger.kernel.org designates 2620:137:e000::3:6 as permitted sender) client-ip=2620:137:e000::3:6; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20230601 header.b=YxjTe4vY; spf=pass (google.com: domain of linux-nfs-owner@vger.kernel.org designates 2620:137:e000::3:6 as permitted sender) smtp.mailfrom=linux-nfs-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by pete.vger.email (Postfix) with ESMTP id 970BE8026F0A; Sat, 14 Oct 2023 06:08:51 -0700 (PDT) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.10 at pete.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233272AbjJNNIt (ORCPT + 99 others); Sat, 14 Oct 2023 09:08:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56402 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233269AbjJNNIt (ORCPT ); Sat, 14 Oct 2023 09:08:49 -0400 Received: from mail-ed1-x535.google.com (mail-ed1-x535.google.com [IPv6:2a00:1450:4864:20::535]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C081DD6 for ; Sat, 14 Oct 2023 06:08:47 -0700 (PDT) Received: by mail-ed1-x535.google.com with SMTP id 4fb4d7f45d1cf-53e16f076b3so5056351a12.0 for ; Sat, 14 Oct 2023 06:08:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1697288926; x=1697893726; darn=vger.kernel.org; h=to:subject:message-id:date:from:mime-version:from:to:cc:subject :date:message-id:reply-to; bh=N/ejzYnRfTLsiAuUMTkdBy5vZBno72m8msVDG2NIKuQ=; b=YxjTe4vYpOxnHWcoFJUSfjyR7yUIgEPzhYh7CFwlOf/LZnoJxdi+5hc3Hat/xG4zO9 lcSD+dMPol975woNy8yZOcez6abyjTgoI1KM8S++nLkLQOF8zN4M1x1cESHZ8B2U+wvP O/7Ymh0Eu7aVbeULFCMw1hdXZK9EjNaIVpaHvBWdlaqGtRlv8N9j7lvadfSOSfXjJm1N Kqoe/J1lUY8gmrT0j077H/7w1PRk5oezj/i1D4oV/Nk/lhQKf8R1DlzGzVKyEvcH9kH7 ABsTSaufG1eHFUTrLpcEjTKi6n9XT93/dWri8Nw+r9xLBPA9ZqUDPt/Jf8oFOeK4f4nx upHA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1697288926; x=1697893726; h=to:subject:message-id:date:from:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=N/ejzYnRfTLsiAuUMTkdBy5vZBno72m8msVDG2NIKuQ=; b=nRxK+AUBIthLyZaXcJnCZSRvjEseE0IGpKT9oT2PeO508qhaz9xxYsU7trsNN+HuuA 3s7ndO+4lvvlXt21rbQVPTFO4lBQ5bnfoiD0Ny51Fx8YN6GnEtfA/isQA00EKf71RHxd /LWyeQKR99eSzg4R3IIV2Wh5EGxA88BTddFwvEsqdrKX16CmG0LApfLLr1nDBxmI1DhC ZZkjN5lKTLbjU9PDHAwwu+axD9ypCLUt5sld2z+vaAAFLth0ITpoZVnYkQaVYRGUvKfi NsS11xG+Mc2WZy/L0TJUGrTR0Md87qrA4KiR+5DoGVikCju8JfZ6e0yAlYi1P//kSoiU WRoQ== X-Gm-Message-State: AOJu0YxlziQiG9SZSD/acq9s/kvgm9gLzvkIm3LGZbVEck4754tQjp3Z OANYzCB8UNd9rP5XQlkOEJ03exmlcLd8wbq8fJks6LV3 X-Received: by 2002:a50:c35c:0:b0:533:ccec:552 with SMTP id q28-20020a50c35c000000b00533ccec0552mr2125914edb.9.1697288925742; Sat, 14 Oct 2023 06:08:45 -0700 (PDT) MIME-Version: 1.0 From: Cedric Blancher Date: Sat, 14 Oct 2023 15:08:09 +0200 Message-ID: Subject: NFSv4.2: READ_PLUS - when safe to use? To: Linux NFS Mailing List Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=-0.6 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on pete.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (pete.vger.email [0.0.0.0]); Sat, 14 Oct 2023 06:08:51 -0700 (PDT) Good afternoon! Since which kernel versions (NFS server, NFS client) is NFSv4.2 READ_PLUS safely usable? Also, could you make this a mount option, so people can turn this on/off per mount, instead of using a kernel build option for this? Ced -- Cedric Blancher [https://plus.google.com/u/0/+CedricBlancher/] Institute Pasteur