From owner-cvs-all@FreeBSD.ORG Fri May 18 12:28:32 2007 Return-Path: X-Original-To: cvs-all@FreeBSD.org Delivered-To: cvs-all@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 1300416A403; Fri, 18 May 2007 12:28:32 +0000 (UTC) (envelope-from amdmi3@amdmi3.ru) Received: from cp65.agava.net (cp65.agava.net [89.108.66.215]) by mx1.freebsd.org (Postfix) with ESMTP id AF54F13C465; Fri, 18 May 2007 12:28:31 +0000 (UTC) (envelope-from amdmi3@amdmi3.ru) Received: from clamav by cp65.agava.net with drweb-scanned (Exim 4.44 (FreeBSD)) id 1Hoz8V-00049P-5u; Fri, 18 May 2007 13:52:35 +0400 Received: from [213.148.29.33] (helo=nexii.panopticon) by cp65.agava.net with esmtpsa (TLSv1:AES256-SHA:256) (Exim 4.44 (FreeBSD)) id 1Hoz8V-000490-1J; Fri, 18 May 2007 13:52:35 +0400 Received: from hades.panopticon (hades.panopticon [192.168.0.2]) by nexii.panopticon (Postfix) with ESMTP id E791D1707B; Fri, 18 May 2007 13:52:56 +0400 (MSD) Received: by hades.panopticon (Postfix, from userid 1000) id 66E494075; Fri, 18 May 2007 13:53:00 +0400 (MSD) Date: Fri, 18 May 2007 13:53:00 +0400 From: Dmitry Marakasov To: Bruce Evans Message-ID: <20070518095300.GA1288@hades.panopticon> Mail-Followup-To: Bruce Evans , Peter Wemm , cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org References: <200705171531.l4HFVEdX083991@repoman.freebsd.org> <20070518025640.Q39238@delplex.bde.org> MIME-Version: 1.0 Content-Type: text/plain; charset=koi8-r Content-Disposition: inline In-Reply-To: <20070518025640.Q39238@delplex.bde.org> User-Agent: Mutt/1.5.15 (2007-04-06) X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - cp65.agava.net X-AntiAbuse: Original Domain - freebsd.org X-AntiAbuse: Originator/Caller UID/GID - [106 106] / [26 6] X-AntiAbuse: Sender Address Domain - amdmi3.ru X-Source: X-Source-Args: X-Source-Dir: Cc: cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org, Peter Wemm Subject: Re: cvs commit: src/sys/kern vfs_vnops.c X-BeenThere: cvs-all@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: CVS commit messages for the entire tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 18 May 2007 12:28:32 -0000 * Bruce Evans (bde@optusnet.com.au) wrote: > > peter 2007-05-17 15:31:14 UTC > > > > FreeBSD src repository > > > > Modified files: > > sys/kern vfs_vnops.c > > Log: > > Eliminate a micro-optimization that hasn't had any effect for 15+ years. > > > > Revision Changes Path > > 1.249 +0 -5 src/sys/kern/vfs_vnops.c > Since it was only implemented 11.5 years ago (in rev.1.18), it certainly > had no effect 15+ years ago, but it probably had an effect later than 11.5 > years ago. I think it refers more to gcc capability to compile var/CONST expression where CONST is 2^n into bit shift instruction instead of division. Which is more important, has this capability been confirmed? -- Best regards, Dmitry Marakasov mailto:amdmi3@amdmi3.ru