From owner-svn-src-head@freebsd.org Sun Feb 19 11:40:52 2017 Return-Path: Delivered-To: svn-src-head@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 B8BB6CE5832; Sun, 19 Feb 2017 11:40:52 +0000 (UTC) (envelope-from melounmichal@gmail.com) Received: from mail-wm0-x241.google.com (mail-wm0-x241.google.com [IPv6:2a00:1450:400c:c09::241]) (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 5D9C7127A; Sun, 19 Feb 2017 11:40:52 +0000 (UTC) (envelope-from melounmichal@gmail.com) Received: by mail-wm0-x241.google.com with SMTP id r18so9675249wmd.3; Sun, 19 Feb 2017 03:40:52 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:reply-to:subject:references:to:cc:message-id:date:user-agent :mime-version:in-reply-to:content-transfer-encoding; bh=hVJPlQ87u0cE2EpE5SVHn32lAxHE0f53R42+zsq01UU=; b=uHcg6XxgPNzE9lg7UvY0cgEUbLE41XoVBgVGajwdMU3i+brilGh/9aGtGxP2G8/loK b+Vx1Xr6vR1pY7T+IWoGlS1dWyOo7NWk50JXCeWXEAAqJ0wmeTz+pg7uwVwNxRDv4E3V rHltWb2we2zkibfSV+SsXD6cJcwfG8+8o0D49haLfcXUrBUbWZQmyAAKhBtj4HBTt6fd oPAg0MkrqQSyj4eN86asL3rGbcbq8x/q9LcUp3Fjgddi9O2tyPcV7KIpki1MQ7LLrE0K 69IReSEL4ttT09Wd51kOnox7SAiYBLBLlQTFxnqaPutrUSYTwEA3YZqLEubU2nfn1d7B VH0w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:reply-to:subject:references:to:cc :message-id:date:user-agent:mime-version:in-reply-to :content-transfer-encoding; bh=hVJPlQ87u0cE2EpE5SVHn32lAxHE0f53R42+zsq01UU=; b=g9nA3Q6AnxUX59RkFZ7n5pM2Ivh7uIpfFYzH11nLNB73hhCBv0pLBQF0f4twWwh1c8 RNC3xtgR9XNeo1D4snQmzRvpLlG9fPgOS0x5tYoFgUZ8hvm+zC/BEJnPjCsL+GattLQ5 HthSDlFBZVdaRvA66abJ+b8SKzZc2YHMWXkQljsgeGLe8qrMrDobOhJLUuqi2ma/cdAG BgIghy3nbPK88EuerEeTazhzvCa+l4i1lmEEPo+D4UwZpNLJDfcS46UY14gIN38QNGSa C62/ZtZHTzBr58BJ4Rn8E8aQMxYv5dGLtcPWJfrMDXQZuFA5WcmmB0UwAcTADmiZ2fJb ejJg== X-Gm-Message-State: AMke39narjAIIG+UdGvF8qS3r/bJan5BvJk1lYhiqysNDJQFHMnCdamKcNWXL9gFe7IQPg== X-Received: by 10.28.191.139 with SMTP id o11mr13903695wmi.97.1487504450026; Sun, 19 Feb 2017 03:40:50 -0800 (PST) Received: from [88.208.79.100] (halouny.humusoft.cz. [88.208.79.100]) by smtp.gmail.com with ESMTPSA id t103sm20508316wrc.43.2017.02.19.03.40.49 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 19 Feb 2017 03:40:49 -0800 (PST) From: Michal Meloun X-Google-Original-From: Michal Meloun Reply-To: mmel@freebsd.org Subject: Re: svn commit: r313928 - head/sys/kern References: <201702182206.v1IM64it034226@repo.freebsd.org> <562d8e7b-f81d-65cc-9806-a074e08b96d5@freebsd.org> <20170219103025.GA8630@dft-labs.eu> To: Mateusz Guzik Cc: Mateusz Guzik , src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Message-ID: <8b3f96ad-969b-3c88-53a2-20189d2ee2a1@freebsd.org> Date: Sun, 19 Feb 2017 12:40:54 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.7.1 MIME-Version: 1.0 In-Reply-To: <20170219103025.GA8630@dft-labs.eu> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 19 Feb 2017 11:40:52 -0000 On 19.02.2017 11:30, Mateusz Guzik wrote: > On Sun, Feb 19, 2017 at 09:30:44AM +0100, Michal Meloun wrote: >> >> On 18.02.2017 23:06, Mateusz Guzik wrote: >>> Author: mjg >>> Date: Sat Feb 18 22:06:03 2017 >>> New Revision: 313928 >>> URL: https://svnweb.freebsd.org/changeset/base/313928 >>> >>> Log: >>> locks: clean up trylock primitives >>> >>> In particular thius reduces accesses of the lock itself. >>> >>> Modified: >>> head/sys/kern/kern_mutex.c >>> head/sys/kern/kern_rwlock.c >>> head/sys/kern/kern_sx.c >>> >> This commit broke (at least) sx_try_xlock_(). >> > Try this please https://people.freebsd.org/~mjg/patches/trylock.diff > The new patch works without problems (on armv6), please commit it. Thanks for quick response. Michal