From owner-svn-src-head@FreeBSD.ORG Sun Feb 15 01:12:16 2015 Return-Path: Delivered-To: svn-src-head@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 3C9DFFAF; Sun, 15 Feb 2015 01:12:16 +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 0D4C8E9A; Sun, 15 Feb 2015 01:12:16 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.9/8.14.9) with ESMTP id t1F1CFLu097771; Sun, 15 Feb 2015 01:12:15 GMT (envelope-from pfg@FreeBSD.org) Received: (from pfg@localhost) by svn.freebsd.org (8.14.9/8.14.9/Submit) id t1F1CFHj097770; Sun, 15 Feb 2015 01:12:15 GMT (envelope-from pfg@FreeBSD.org) Message-Id: <201502150112.t1F1CFHj097770@svn.freebsd.org> X-Authentication-Warning: svn.freebsd.org: pfg set sender to pfg@FreeBSD.org using -f From: "Pedro F. Giffuni" Date: Sun, 15 Feb 2015 01:12:15 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r278790 - head/sys/fs/ext2fs X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 15 Feb 2015 01:12:16 -0000 Author: pfg Date: Sun Feb 15 01:12:15 2015 New Revision: 278790 URL: https://svnweb.freebsd.org/changeset/base/278790 Log: Initialize the allocation of variables related to the ext2 allocator. The e2fs_gd struct was not being initialized and garbage was being used for hinting the ext2 allocator variant. Use malloc to clear the values and also initialize e2fs_contigdirs during allocation to keep consistency. While here clean up small style issues. Reported by: Clang static analyser MFC after: 1 week Modified: head/sys/fs/ext2fs/ext2_vfsops.c Modified: head/sys/fs/ext2fs/ext2_vfsops.c ============================================================================== --- head/sys/fs/ext2fs/ext2_vfsops.c Sat Feb 14 23:28:09 2015 (r278789) +++ head/sys/fs/ext2fs/ext2_vfsops.c Sun Feb 15 01:12:15 2015 (r278790) @@ -355,7 +355,7 @@ compute_sb_data(struct vnode *devvp, str } fs->e2fs_ipb = fs->e2fs_bsize / EXT2_INODE_SIZE(fs); - fs->e2fs_itpg = fs->e2fs_ipg /fs->e2fs_ipb; + fs->e2fs_itpg = fs->e2fs_ipg / fs->e2fs_ipb; /* s_resuid / s_resgid ? */ fs->e2fs_gcount = (es->e2fs_bcount - es->e2fs_first_dblock + EXT2_BLOCKS_PER_GROUP(fs) - 1) / EXT2_BLOCKS_PER_GROUP(fs); @@ -363,9 +363,9 @@ compute_sb_data(struct vnode *devvp, str db_count = (fs->e2fs_gcount + e2fs_descpb - 1) / e2fs_descpb; fs->e2fs_gdbcount = db_count; fs->e2fs_gd = malloc(db_count * fs->e2fs_bsize, - M_EXT2MNT, M_WAITOK); + M_EXT2MNT, M_WAITOK | M_ZERO); fs->e2fs_contigdirs = malloc(fs->e2fs_gcount * - sizeof(*fs->e2fs_contigdirs), M_EXT2MNT, M_WAITOK); + sizeof(*fs->e2fs_contigdirs), M_EXT2MNT, M_WAITOK | M_ZERO); /* * Adjust logic_sb_block. @@ -390,11 +390,11 @@ compute_sb_data(struct vnode *devvp, str brelse(bp); bp = NULL; } + /* Initialization for the ext2 Orlov allocator variant. */ fs->e2fs_total_dir = 0; - for (i=0; i < fs->e2fs_gcount; i++){ + for (i = 0; i < fs->e2fs_gcount; i++) fs->e2fs_total_dir += fs->e2fs_gd[i].ext2bgd_ndirs; - fs->e2fs_contigdirs[i] = 0; - } + if (es->e2fs_rev == E2FS_REV0 || !EXT2_HAS_RO_COMPAT_FEATURE(fs, EXT2F_ROCOMPAT_LARGEFILE)) fs->e2fs_maxfilesize = 0x7fffffff;