From owner-svn-src-user@FreeBSD.ORG Wed Jul 24 07:46:16 2013 Return-Path: Delivered-To: svn-src-user@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by hub.freebsd.org (Postfix) with ESMTP id 4050A6F9; Wed, 24 Jul 2013 07:46:16 +0000 (UTC) (envelope-from attilio@FreeBSD.org) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 320EE2EFC; Wed, 24 Jul 2013 07:46:16 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.7/8.14.7) with ESMTP id r6O7kGXn062500; Wed, 24 Jul 2013 07:46:16 GMT (envelope-from attilio@svn.freebsd.org) Received: (from attilio@localhost) by svn.freebsd.org (8.14.7/8.14.5/Submit) id r6O7kFaF062499; Wed, 24 Jul 2013 07:46:15 GMT (envelope-from attilio@svn.freebsd.org) Message-Id: <201307240746.r6O7kFaF062499@svn.freebsd.org> From: Attilio Rao Date: Wed, 24 Jul 2013 07:46:15 +0000 (UTC) To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r253594 - user/attilio/vmobj-readlock/sys/vm X-SVN-Group: user MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-user@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "SVN commit messages for the experimental " user" src tree" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 24 Jul 2013 07:46:16 -0000 Author: attilio Date: Wed Jul 24 07:46:15 2013 New Revision: 253594 URL: http://svnweb.freebsd.org/changeset/base/253594 Log: Remove wrong comment. Sponsored by: EMC / Isilon storage division Reported by: jeff Modified: user/attilio/vmobj-readlock/sys/vm/vm_page.h Modified: user/attilio/vmobj-readlock/sys/vm/vm_page.h ============================================================================== --- user/attilio/vmobj-readlock/sys/vm/vm_page.h Wed Jul 24 07:15:08 2013 (r253593) +++ user/attilio/vmobj-readlock/sys/vm/vm_page.h Wed Jul 24 07:46:15 2013 (r253594) @@ -109,16 +109,6 @@ * contains the dirty field. In the machine-independent layer, * the implementation of read-modify-write operations on the * field is encapsulated in vm_page_clear_dirty_mask(). - * - * Page content access is regulated (mostly) by the busy mechanism. - * When the page content is changing (for example, during a page READ - * operation) the page owner must acquire an write busy token. Similarly, - * when the page content is just being accessed for reading purposes - * (for example, during a page WRITE operation) the page owner must - * acquire a read busy token. - * The busy mechanism is regulated by the vm_page_busy_*() family of - * primitives and it follows a reader/writer lock pattern as the names - * suggest. */ #if PAGE_SIZE == 4096