From owner-p4-projects@FreeBSD.ORG  Fri Mar 11 10:25:47 2011
Return-Path: <owner-p4-projects@FreeBSD.ORG>
Delivered-To: p4-projects@freebsd.org
Received: by hub.freebsd.org (Postfix, from userid 32767)
	id B9F681065672; Fri, 11 Mar 2011 10:25:47 +0000 (UTC)
Delivered-To: perforce@FreeBSD.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 7CC471065676
	for <perforce@FreeBSD.org>; Fri, 11 Mar 2011 10:25:47 +0000 (UTC)
	(envelope-from lz@FreeBSD.org)
Received: from skunkworks.freebsd.org (skunkworks.freebsd.org
	[IPv6:2001:4f8:fff6::2d])
	by mx1.freebsd.org (Postfix) with ESMTP id 685668FC0A
	for <perforce@FreeBSD.org>; Fri, 11 Mar 2011 10:25:47 +0000 (UTC)
Received: from skunkworks.freebsd.org (localhost [127.0.0.1])
	by skunkworks.freebsd.org (8.14.4/8.14.4) with ESMTP id p2BAPlD9041912
	for <perforce@FreeBSD.org>; Fri, 11 Mar 2011 10:25:47 GMT
	(envelope-from lz@FreeBSD.org)
Received: (from perforce@localhost)
	by skunkworks.freebsd.org (8.14.4/8.14.4/Submit) id p2BAPlPH041909
	for perforce@freebsd.org; Fri, 11 Mar 2011 10:25:47 GMT
	(envelope-from lz@FreeBSD.org)
Date: Fri, 11 Mar 2011 10:25:47 GMT
Message-Id: <201103111025.p2BAPlPH041909@skunkworks.freebsd.org>
X-Authentication-Warning: skunkworks.freebsd.org: perforce set sender to
	lz@FreeBSD.org using -f
From: Zheng Liu <lz@FreeBSD.org>
To: Perforce Change Reviews <perforce@FreeBSD.org>
Precedence: bulk
Cc: 
Subject: PERFORCE change 189855 for review
X-BeenThere: p4-projects@freebsd.org
X-Mailman-Version: 2.1.5
List-Id: p4 projects tree changes <p4-projects.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/p4-projects>,
	<mailto:p4-projects-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/p4-projects>
List-Post: <mailto:p4-projects@freebsd.org>
List-Help: <mailto:p4-projects-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/p4-projects>,
	<mailto:p4-projects-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 11 Mar 2011 10:25:48 -0000

http://p4web.freebsd.org/@@189855?ac=10

Change 189855 by lz@freebsd-dev on 2011/03/11 10:25:07

	       Check block map in runlen == 0.

Affected files ...

.. //depot/projects/soc2010/extfs/src/sys/fs/ext2fs/ext2_alloc.c#38 edit

Differences ...

==== //depot/projects/soc2010/extfs/src/sys/fs/ext2fs/ext2_alloc.c#38 (text+ko) ====

@@ -1345,6 +1345,13 @@
                 }
 
                 if (runlen == 0) {
+                        bit = ffs(bbp[loc]) - 1;
+                        runlen += bit;
+                        if (runlen >= len) {
+                                bno = loc * NBBY;
+                                goto gotit;
+                        }
+
                         bit = fls(bbp[loc]);
                         runlen = NBBY - bit;
                         runstart = loc * NBBY + bit;