From owner-freebsd-hackers@freebsd.org Wed Mar 8 23:25:59 2017 Return-Path: Delivered-To: freebsd-hackers@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 1DCB7D03C31 for ; Wed, 8 Mar 2017 23:25:59 +0000 (UTC) (envelope-from rozhuk.im@gmail.com) Received: from mail-lf0-x22d.google.com (mail-lf0-x22d.google.com [IPv6:2a00:1450:4010:c07::22d]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 926F31DCE for ; Wed, 8 Mar 2017 23:25:58 +0000 (UTC) (envelope-from rozhuk.im@gmail.com) Received: by mail-lf0-x22d.google.com with SMTP id y193so21139081lfd.3 for ; Wed, 08 Mar 2017 15:25:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:date:to:subject:message-id:mime-version :content-transfer-encoding; bh=34l4/l4K1fSl4JKBPmBSw1MYI1iU7anLgtCWfwX3O3c=; b=Ic8aK9UNWRWNL//ZUYXnmyxN421bDmfDilL8ihpetu5yK3s161KQYO6/0NPmGNPXq2 M9G435Y4g+8h7XWCU1LszgVE1DhIs1DDB/eCcZIgZq88T/jtU251YPR8JvpO38bXqiX9 4YfqyhyHveGvjW5VwO1zbjT2D3NjFz6anNzReqHnk/1RAlNw6bxbaScUgGIfIF+80NGF PS887aig1D9SRUL98jWKeoNNjAPESzu4+P2Zv1Bx8dbd30v43YYKAwlyk1QjocjEUajG cQt4TDzpXzPM4Bm1IHPWNB1o3vCt/LUY/DUh9JCMe+pbtnwE7GcZlN6UgSAbiZq9Oyqa OPtQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:date:to:subject:message-id:mime-version :content-transfer-encoding; bh=34l4/l4K1fSl4JKBPmBSw1MYI1iU7anLgtCWfwX3O3c=; b=hnoqM7L1OXAtI27w0FAFQrtWvJl23UHX8NzN1dbXyqW941tU+LNUd8hulnuQHmXYox pqJslnH846e2sQw0BZ5nYEDO3Kb7SgH1L7xPWOCwp0fS7esy+hhZ9svo/u6+CO6c1QF8 FDyQg0OoB7ToybJkatHyGFKz47XjUdw6ihCiR4oCsoMaNIE8uCdZb/1lIgJbIh1m1hu4 KiV0Ozd4asZ00yJi9q22mZ7Xe3MQgoHJZAeNEJUvPkvPgwPsjyzu72eqDDwXCC3PiUhX Zbxzhomo4N45V8qEScggRj6akyEsuU3+zq2psWw8HIX4iCAHNa9ooFw+1cZpqS6TnoLq +fxw== X-Gm-Message-State: AMke39mS8/jpM4dYbDFIasdF65Y/SqO0AoXV2Ms209pJmkqjboBKWTUOtXZf6T3Bh3lxWg== X-Received: by 10.25.31.141 with SMTP id f135mr980607lff.56.1489015556830; Wed, 08 Mar 2017 15:25:56 -0800 (PST) Received: from rimwks ([2001:470:28:81a:6ef0:49ff:fe75:38e3]) by smtp.gmail.com with ESMTPSA id o91sm908955lfg.1.2017.03.08.15.25.55 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Wed, 08 Mar 2017 15:25:56 -0800 (PST) From: Rozhuk Ivan X-Google-Original-From: Rozhuk Ivan Date: Thu, 9 Mar 2017 02:25:54 +0300 To: freebsd-hackers@freebsd.org, Rozhuk Ivan Subject: open(): O_EVTONLY and O_NOATIME Message-ID: <20170309022554.18875d07@rimwks> X-Mailer: Claws Mail 3.14.1 (GTK+ 2.24.29; amd64-portbld-freebsd11.0) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 08 Mar 2017 23:25:59 -0000 Hi! Can some one add O_EVTONLY and O_NOATIME to open()? https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=214338 devel/glib20: patch: new kqueue() backend for file monitoring Without O_NOATIME open() on file/dir always update attributes -> file browsing via sshfs/internet get very slow. Without O_EVTONLY kqueue() cant monitor dirs/files than locked, also this cause unmount proublems. IMHO O_NOATIME - easy to add.