From owner-svn-src-all@FreeBSD.ORG Wed Jan 28 15:37:36 2015 Return-Path: Delivered-To: svn-src-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id CBEB394A; Wed, 28 Jan 2015 15:37:36 +0000 (UTC) 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)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 9D76F305; Wed, 28 Jan 2015 15:37:36 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.9/8.14.9) with ESMTP id t0SFbahF094450; Wed, 28 Jan 2015 15:37:36 GMT (envelope-from pfg@FreeBSD.org) Received: (from pfg@localhost) by svn.freebsd.org (8.14.9/8.14.9/Submit) id t0SFbaVu094448; Wed, 28 Jan 2015 15:37:36 GMT (envelope-from pfg@FreeBSD.org) Message-Id: <201501281537.t0SFbaVu094448@svn.freebsd.org> X-Authentication-Warning: svn.freebsd.org: pfg set sender to pfg@FreeBSD.org using -f From: "Pedro F. Giffuni" Date: Wed, 28 Jan 2015 15:37:36 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-9@freebsd.org Subject: svn commit: r277833 - stable/9/sys/fs/ext2fs X-SVN-Group: stable-9 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 28 Jan 2015 15:37:36 -0000 Author: pfg Date: Wed Jan 28 15:37:35 2015 New Revision: 277833 URL: https://svnweb.freebsd.org/changeset/base/277833 Log: MFC r277340, r277349: Remove dead code. After the ext2 variant of the "orlov allocator" was implemented, the case for a negative or zero dirsize disappeared. Drop the dead code and unsign dirsize given that it can't be negative anyways. ext2fs: fix for uninitialized pointer read. path.ep_bp was being used uninitialized in ext4_ext_find_extent(). CID: 1062344 CID: 1008669 Modified: stable/9/sys/fs/ext2fs/ext2_alloc.c stable/9/sys/fs/ext2fs/ext2_bmap.c Directory Properties: stable/9/sys/ (props changed) stable/9/sys/fs/ (props changed) Modified: stable/9/sys/fs/ext2fs/ext2_alloc.c ============================================================================== --- stable/9/sys/fs/ext2fs/ext2_alloc.c Wed Jan 28 15:36:24 2015 (r277832) +++ stable/9/sys/fs/ext2fs/ext2_alloc.c Wed Jan 28 15:37:35 2015 (r277833) @@ -443,11 +443,11 @@ static u_long ext2_dirpref(struct inode *pip) { struct m_ext2fs *fs; - int cg, prefcg, dirsize, cgsize; + int cg, prefcg, cgsize; u_int avgifree, avgbfree, avgndir, curdirsize; u_int minifree, minbfree, maxndir; u_int mincg, minndir; - u_int maxcontigdirs; + u_int dirsize, maxcontigdirs; mtx_assert(EXT2_MTX(pip->i_ump), MA_OWNED); fs = pip->i_e2fs; @@ -498,10 +498,7 @@ ext2_dirpref(struct inode *pip) curdirsize = avgndir ? (cgsize - avgbfree * fs->e2fs_bsize) / avgndir : 0; if (dirsize < curdirsize) dirsize = curdirsize; - if (dirsize <= 0) - maxcontigdirs = 0; /* dirsize overflowed */ - else - maxcontigdirs = min((avgbfree * fs->e2fs_bsize) / dirsize, 255); + maxcontigdirs = min((avgbfree * fs->e2fs_bsize) / dirsize, 255); maxcontigdirs = min(maxcontigdirs, fs->e2fs_ipg / AFPDIR); if (maxcontigdirs == 0) maxcontigdirs = 1; Modified: stable/9/sys/fs/ext2fs/ext2_bmap.c ============================================================================== --- stable/9/sys/fs/ext2fs/ext2_bmap.c Wed Jan 28 15:36:24 2015 (r277832) +++ stable/9/sys/fs/ext2fs/ext2_bmap.c Wed Jan 28 15:37:35 2015 (r277833) @@ -94,7 +94,7 @@ ext4_bmapext(struct vnode *vp, int32_t b struct inode *ip; struct m_ext2fs *fs; struct ext4_extent *ep; - struct ext4_extent_path path; + struct ext4_extent_path path = { .ep_bp = NULL }; daddr_t lbn; ip = VTOI(vp);