From: "Aneesh Kumar K.V" Subject: [PATCH] ext4: Properly mark the extent uninitialized during truncate Date: Wed, 10 Jun 2009 18:25:57 +0530 Message-ID: <1244638557-13492-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com> Cc: linux-ext4@vger.kernel.org, "Aneesh Kumar K.V" To: cmm@us.ibm.com, tytso@mit.edu, sandeen@redhat.com Return-path: Received: from e23smtp09.au.ibm.com ([202.81.31.142]:38198 "EHLO e23smtp09.au.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755389AbZFJM4D (ORCPT ); Wed, 10 Jun 2009 08:56:03 -0400 Received: from d23relay02.au.ibm.com (d23relay02.au.ibm.com [202.81.31.244]) by e23smtp09.au.ibm.com (8.13.1/8.13.1) with ESMTP id n5AMpWwE028064 for ; Thu, 11 Jun 2009 08:51:32 +1000 Received: from d23av03.au.ibm.com (d23av03.au.ibm.com [9.190.234.97]) by d23relay02.au.ibm.com (8.13.8/8.13.8/NCO v9.2) with ESMTP id n5ACu4lY729094 for ; Wed, 10 Jun 2009 22:56:04 +1000 Received: from d23av03.au.ibm.com (loopback [127.0.0.1]) by d23av03.au.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id n5ACu39H004927 for ; Wed, 10 Jun 2009 22:56:04 +1000 Sender: linux-ext4-owner@vger.kernel.org List-ID: We should make sure we don't mark the non uninit extent as uninit during truncate Signed-off-by: Aneesh Kumar K.V --- fs/ext4/extents.c | 8 ++++++-- 1 files changed, 6 insertions(+), 2 deletions(-) diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index f2a2591..764c394 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -2083,12 +2083,16 @@ ext4_ext_rm_leaf(handle_t *handle, struct inode *inode, ex = EXT_LAST_EXTENT(eh); ex_ee_block = le32_to_cpu(ex->ee_block); - if (ext4_ext_is_uninitialized(ex)) - uninitialized = 1; ex_ee_len = ext4_ext_get_actual_len(ex); while (ex >= EXT_FIRST_EXTENT(eh) && ex_ee_block + ex_ee_len > start) { + + if (ext4_ext_is_uninitialized(ex)) + uninitialized = 1; + else + uninitialized = 0; + ext_debug("remove ext %lu:%u\n", ex_ee_block, ex_ee_len); path[depth].p_ext = ex; -- 1.6.3.2.214.gf4f78