From: "Darrick J. Wong" Subject: [PATCH 22/54] debugfs: Print htree internal node checksums Date: Tue, 06 Mar 2012 15:59:44 -0800 Message-ID: <20120306235944.11945.81798.stgit@elm3b70.beaverton.ibm.com> References: <20120306235720.11945.30629.stgit@elm3b70.beaverton.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Cc: Sunil Mushran , Amir Goldstein , Andi Kleen , Mingming Cao , Joel Becker , linux-ext4@vger.kernel.org, Coly Li To: Andreas Dilger , Theodore Tso , "Darrick J. Wong" Return-path: Received: from e1.ny.us.ibm.com ([32.97.182.141]:50495 "EHLO e1.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1031282Ab2CGAAf (ORCPT ); Tue, 6 Mar 2012 19:00:35 -0500 Received: from /spool/local by e1.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 6 Mar 2012 19:00:33 -0500 Received: from d01relay02.pok.ibm.com (d01relay02.pok.ibm.com [9.56.227.234]) by d01dlp01.pok.ibm.com (Postfix) with ESMTP id 7611338C805A for ; Tue, 6 Mar 2012 18:59:58 -0500 (EST) Received: from d01av03.pok.ibm.com (d01av03.pok.ibm.com [9.56.224.217]) by d01relay02.pok.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id q26NxnZn404918 for ; Tue, 6 Mar 2012 18:59:50 -0500 Received: from d01av03.pok.ibm.com (loopback [127.0.0.1]) by d01av03.pok.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id q26NxmCr015584 for ; Tue, 6 Mar 2012 20:59:49 -0300 In-Reply-To: <20120306235720.11945.30629.stgit@elm3b70.beaverton.ibm.com> Sender: linux-ext4-owner@vger.kernel.org List-ID: Print htree node checksums when dumping a directory index. Signed-off-by: Darrick J. Wong --- debugfs/htree.c | 17 ++++++++++++++++- 1 files changed, 16 insertions(+), 1 deletions(-) diff --git a/debugfs/htree.c b/debugfs/htree.c index 05745eb..2fb804e 100644 --- a/debugfs/htree.c +++ b/debugfs/htree.c @@ -120,8 +120,9 @@ static void htree_dump_int_node(ext2_filsys fs, ext2_ino_t ino, { struct ext2_dx_countlimit limit; struct ext2_dx_entry e; + struct ext2_dx_tail *tail; int hash, i; - + int remainder; limit = *((struct ext2_dx_countlimit *) ent); limit.count = ext2fs_le16_to_cpu(limit.count); @@ -130,6 +131,20 @@ static void htree_dump_int_node(ext2_filsys fs, ext2_ino_t ino, fprintf(pager, "Number of entries (count): %d\n", limit.count); fprintf(pager, "Number of entries (limit): %d\n", limit.limit); + remainder = fs->blocksize - (limit.limit * + sizeof(struct ext2_dx_entry)); + if (ent == (struct ext2_dx_entry *)(rootnode + 1)) + remainder -= sizeof(struct ext2_dx_root_info) + 24; + else + remainder -= 8; + if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super, + EXT4_FEATURE_RO_COMPAT_METADATA_CSUM) && + remainder == sizeof(struct ext2_dx_tail)) { + tail = (struct ext2_dx_tail *)(ent + limit.limit); + fprintf(pager, "Checksum: 0x%08x\n", + ext2fs_le32_to_cpu(tail->dt_checksum)); + } + for (i=0; i < limit.count; i++) { hash = i ? ext2fs_le32_to_cpu(ent[i].hash) : 0; fprintf(pager, "Entry #%d: Hash 0x%08x%s, block %u\n", i,