From: Younger Liu <younger.liu@huawei.com>
Date: Thu, 27 Jun 2013 23:51:06 +0000 (+1000)
Subject: ocfs2: should call ocfs2_journal_access_di() before ocfs2_delete_entry() in ocfs2_orp... 
X-Git-Tag: next-20130628~3^2~635
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=ba900915f5f310193c1ca80411f76b099888b336;p=karo-tx-linux.git

ocfs2: should call ocfs2_journal_access_di() before ocfs2_delete_entry() in ocfs2_orphan_del()

While deleting a file into orphan dir in ocfs2_orphan_del(), it calls
ocfs2_delete_entry() before ocfs2_journal_access_di().  If
ocfs2_delete_entry() succeeded and ocfs2_journal_access_di() failed, there
would be a inconsistency: the file is deleted from orphan dir, but orphan
dir dinode is not updated.

So we need to call ocfs2_journal_access_di() before ocfs2_orphan_del().

Signed-off-by: Younger Liu <younger.liu@huawei.com>
Cc: Jie Liu <jeff.liu@oracle.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
index 75964addfe32..514d8468375c 100644
--- a/fs/ocfs2/namei.c
+++ b/fs/ocfs2/namei.c
@@ -2095,17 +2095,17 @@ int ocfs2_orphan_del(struct ocfs2_super *osb,
 		goto leave;
 	}
 
-	/* remove it from the orphan directory */
-	status = ocfs2_delete_entry(handle, orphan_dir_inode, &lookup);
+	status = ocfs2_journal_access_di(handle,
+					 INODE_CACHE(orphan_dir_inode),
+					 orphan_dir_bh,
+					 OCFS2_JOURNAL_ACCESS_WRITE);
 	if (status < 0) {
 		mlog_errno(status);
 		goto leave;
 	}
 
-	status = ocfs2_journal_access_di(handle,
-					 INODE_CACHE(orphan_dir_inode),
-					 orphan_dir_bh,
-					 OCFS2_JOURNAL_ACCESS_WRITE);
+	/* remove it from the orphan directory */
+	status = ocfs2_delete_entry(handle, orphan_dir_inode, &lookup);
 	if (status < 0) {
 		mlog_errno(status);
 		goto leave;