From owner-svn-doc-head@freebsd.org Sun Mar 6 20:19:50 2016 Return-Path: Delivered-To: svn-doc-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 BF621AC1983; Sun, 6 Mar 2016 20:19:50 +0000 (UTC) (envelope-from jgh@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 7679BDE1; Sun, 6 Mar 2016 20:19:50 +0000 (UTC) (envelope-from jgh@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id u26KJnti014174; Sun, 6 Mar 2016 20:19:49 GMT (envelope-from jgh@FreeBSD.org) Received: (from jgh@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id u26KJnfG014173; Sun, 6 Mar 2016 20:19:49 GMT (envelope-from jgh@FreeBSD.org) Message-Id: <201603062019.u26KJnfG014173@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: jgh set sender to jgh@FreeBSD.org using -f From: Jason Helfman Date: Sun, 6 Mar 2016 20:19:49 +0000 (UTC) To: doc-committers@freebsd.org, svn-doc-all@freebsd.org, svn-doc-head@freebsd.org Subject: svn commit: r48349 - head/en_US.ISO8859-1/books/arch-handbook/driverbasics X-SVN-Group: doc-head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-doc-head@freebsd.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: SVN commit messages for the doc tree for head List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 06 Mar 2016 20:19:50 -0000 Author: jgh Date: Sun Mar 6 20:19:49 2016 New Revision: 48349 URL: https://svnweb.freebsd.org/changeset/doc/48349 Log: - whitespace change only (translators may igore) Modified: head/en_US.ISO8859-1/books/arch-handbook/driverbasics/chapter.xml Modified: head/en_US.ISO8859-1/books/arch-handbook/driverbasics/chapter.xml ============================================================================== --- head/en_US.ISO8859-1/books/arch-handbook/driverbasics/chapter.xml Sun Mar 6 18:08:39 2016 (r48348) +++ head/en_US.ISO8859-1/books/arch-handbook/driverbasics/chapter.xml Sun Mar 6 20:19:49 2016 (r48349) @@ -387,22 +387,20 @@ Closing device "echo". operations, depriving the application of the ability to know the exact disk contents at any one instant in time. - - This makes predictable and reliable crash recovery of on-disk - data structures (filesystems, databases etc.) impossible. Since - writes may be delayed, there is no way the kernel can report to - the application which particular write operation encountered a - write error, this further compounds the consistency - problem. + This makes predictable and reliable crash recovery of + on-disk data structures (filesystems, databases etc.) + impossible. Since writes may be delayed, there is no way + the kernel can report to the application which particular + write operation encountered a write error, this further + compounds the consistency problem. - - For this reason, no serious applications rely on block devices, - and in fact, almost all applications which access disks directly - take great pains to specify that character (or - raw) devices should always be used. Because the - implementation of the aliasing of each disk (partition) to two - devices with different semantics significantly complicated the - relevant kernel code &os; dropped support for cached disk + For this reason, no serious applications rely on block + devices, and in fact, almost all applications which access + disks directly take great pains to specify that character + (or raw) devices should always be used. Because + the implementation of the aliasing of each disk (partition) to + two devices with different semantics significantly complicated + the relevant kernel code &os; dropped support for cached disk devices as part of the modernization of the disk I/O infrastructure.