[PATCH] eCryptfs: CIFS nlink fixes

When CIFS is the lower filesystem, the old lower dentry needs to be explicitly
dropped from inside eCryptfs to force a revalidate.  In addition, when CIFS is
the lower filesystem, the inode attributes need to be copied back up from the
lower inode to the eCryptfs inode on an eCryptfs revalidate.

Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index ebec8cf..dfcc684 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -470,6 +470,7 @@
 	unlock_dir(lower_dir_dentry);
 	dput(lower_new_dentry);
 	dput(lower_old_dentry);
+	d_drop(lower_old_dentry);
 	d_drop(new_dentry);
 	d_drop(old_dentry);
 	return rc;
@@ -484,7 +485,7 @@
 	lock_parent(lower_dentry);
 	rc = vfs_unlink(lower_dir_inode, lower_dentry);
 	if (rc) {
-		ecryptfs_printk(KERN_ERR, "Error in vfs_unlink\n");
+		printk(KERN_ERR "Error in vfs_unlink; rc = [%d]\n", rc);
 		goto out_unlock;
 	}
 	ecryptfs_copy_attr_times(dir, lower_dir_inode);