From owner-p4-projects@FreeBSD.ORG Sat Apr 22 00:35:30 2006 Return-Path: X-Original-To: p4-projects@freebsd.org Delivered-To: p4-projects@freebsd.org Received: by hub.freebsd.org (Postfix, from userid 32767) id C628316A403; Sat, 22 Apr 2006 00:35:30 +0000 (UTC) X-Original-To: perforce@freebsd.org Delivered-To: perforce@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8058416A400 for ; Sat, 22 Apr 2006 00:35:30 +0000 (UTC) (envelope-from jb@freebsd.org) Received: from repoman.freebsd.org (repoman.freebsd.org [216.136.204.115]) by mx1.FreeBSD.org (Postfix) with ESMTP id 38D6643D48 for ; Sat, 22 Apr 2006 00:35:30 +0000 (GMT) (envelope-from jb@freebsd.org) Received: from repoman.freebsd.org (localhost [127.0.0.1]) by repoman.freebsd.org (8.13.1/8.13.1) with ESMTP id k3M0ZTnj005425 for ; Sat, 22 Apr 2006 00:35:30 GMT (envelope-from jb@freebsd.org) Received: (from perforce@localhost) by repoman.freebsd.org (8.13.1/8.13.1/Submit) id k3M0ZTDC005419 for perforce@freebsd.org; Sat, 22 Apr 2006 00:35:29 GMT (envelope-from jb@freebsd.org) Date: Sat, 22 Apr 2006 00:35:29 GMT Message-Id: <200604220035.k3M0ZTDC005419@repoman.freebsd.org> X-Authentication-Warning: repoman.freebsd.org: perforce set sender to jb@freebsd.org using -f From: John Birrell To: Perforce Change Reviews Cc: Subject: PERFORCE change 95846 for review X-BeenThere: p4-projects@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: p4 projects tree changes List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 22 Apr 2006 00:35:31 -0000 http://perforce.freebsd.org/chv.cgi?CH=95846 Change 95846 by jb@jb_freebsd2 on 2006/04/22 00:34:55 DTrace only uses the Solaris vmem subsystem to allocate and track what are effectively resource IDs. We can implement a very simple bitmap-backed solution which achieves the same result. And before even doing that, we can get the code running simply by returning an ever-increasing integer value as the resource ID. We'll run out after doing that 4 billion times, but by then we should have the bitmap solution which can reclaim the IDs. Affected files ... .. //depot/projects/dtrace/src/sys/contrib/opensolaris/uts/common/sys/vmem.h#3 delete Differences ...