VFS: normal filesystems (and lustre): d_inode() annotations

that's the bulk of filesystem drivers dealing with inodes of their own

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/ecryptfs/dentry.c b/fs/ecryptfs/dentry.c
index 4000f6b..8db0b46 100644
--- a/fs/ecryptfs/dentry.c
+++ b/fs/ecryptfs/dentry.c
@@ -54,11 +54,11 @@
 		return -ECHILD;
 
 	rc = lower_dentry->d_op->d_revalidate(lower_dentry, flags);
-	if (dentry->d_inode) {
+	if (d_really_is_positive(dentry)) {
 		struct inode *lower_inode =
-			ecryptfs_inode_to_lower(dentry->d_inode);
+			ecryptfs_inode_to_lower(d_inode(dentry));
 
-		fsstack_copy_attr_all(dentry->d_inode, lower_inode);
+		fsstack_copy_attr_all(d_inode(dentry), lower_inode);
 	}
 	return rc;
 }