From owner-svn-src-head@freebsd.org Sun Feb 19 10:30:31 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 90625CDB808; Sun, 19 Feb 2017 10:30:31 +0000 (UTC) (envelope-from mjguzik@gmail.com) Received: from mail-wr0-x242.google.com (mail-wr0-x242.google.com [IPv6:2a00:1450:400c:c0c::242]) (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 2A0B11594; Sun, 19 Feb 2017 10:30:31 +0000 (UTC) (envelope-from mjguzik@gmail.com) Received: by mail-wr0-x242.google.com with SMTP id s27so56197wrb.0; Sun, 19 Feb 2017 02:30:31 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=Gaor2zbwr03PKgVlTq4SPPpyM3Q1PB20KdSpYCrObWo=; b=JvxcMrLW3kRPVkwEi5TTe+deylxEWEivbDhkOZXVGl3n/WmZKmLLlrAdTi91j7sPvi Y1J8HLPrCKnqNHi/XSgHl1wsk9rvrtkcX/TmjrANr2W9LxWuuJhwxsdeQ08QSWC0y+0O cU8qpgcvblszhk4KpBoS2bd+aNXjgVlAVlrQDyQBuvhSFEd35L+F7xPQ/KOYp9AduVlt ZJQyvVcMaccpzsuK6drGGMm6ixvsfkimxPiF6SA+jQPN++kjv30pnvbOO//Tt9gEnvBv XBismwuWqm9fsVpuU5UsejkfRF9QG9YMzqTWqjyr7pvJYSnU9gJriRcA8n/zsZYeSDoB Z5zQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=Gaor2zbwr03PKgVlTq4SPPpyM3Q1PB20KdSpYCrObWo=; b=bZj4q9XIN5Lnwa72zbByK2l/YoN+qPk4JzLqYUEqJyQTE6JLy+swGXHOALOdT0lgFG IRJho5ipUklTA6lzk0pcD0KRxCFW8oujvWzI9dsfgnWievhTOMDRZy4LyebcyiSwOImi ZWCv2iACSGVCAWOYT+AHgyNwBMQBiQrzkaoK+inqTPSmxxfvxCJ6cL8o+kequuBPslko QrfxzT2PCHy/31SuhLoNe1r8m+voq+tFZFOpq/K0S1mWzHvUVZmVzRieSSZWUJqk4Htt Cwz01T85YzPH8duPC4eOdRZMkShO3uhWhcCiKm0JE3uNymuhcpeQYSoqHbVFkN6qRieA GbuA== X-Gm-Message-State: AMke39mEPs4lMqGb2tn+LzgEVrh7uK5XHWuLUCL4UMYs46LgMt63a/AaDQPh/RZreDxcJQ== X-Received: by 10.223.174.183 with SMTP id y52mr13145745wrc.112.1487500229200; Sun, 19 Feb 2017 02:30:29 -0800 (PST) Received: from dft-labs.eu (n1x0n-1-pt.tunnel.tserv5.lon1.ipv6.he.net. [2001:470:1f08:1f7::2]) by smtp.gmail.com with ESMTPSA id b10sm8964292wmi.34.2017.02.19.02.30.27 (version=TLS1_2 cipher=AES128-SHA bits=128/128); Sun, 19 Feb 2017 02:30:28 -0800 (PST) Date: Sun, 19 Feb 2017 11:30:25 +0100 From: Mateusz Guzik To: mmel@freebsd.org Cc: Mateusz Guzik , src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r313928 - head/sys/kern Message-ID: <20170219103025.GA8630@dft-labs.eu> References: <201702182206.v1IM64it034226@repo.freebsd.org> <562d8e7b-f81d-65cc-9806-a074e08b96d5@freebsd.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <562d8e7b-f81d-65cc-9806-a074e08b96d5@freebsd.org> User-Agent: Mutt/1.5.21 (2010-09-15) 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 10:30:31 -0000 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 -- Mateusz Guzik