switch vfs_getattr() to struct path

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/ecryptfs/ecryptfs_kernel.h b/fs/ecryptfs/ecryptfs_kernel.h
index cfb4b9f..7e2c6f5 100644
--- a/fs/ecryptfs/ecryptfs_kernel.h
+++ b/fs/ecryptfs/ecryptfs_kernel.h
@@ -509,6 +509,12 @@
 	return ((struct ecryptfs_dentry_info *)dentry->d_fsdata)->lower_path.mnt;
 }
 
+static inline struct path *
+ecryptfs_dentry_to_lower_path(struct dentry *dentry)
+{
+	return &((struct ecryptfs_dentry_info *)dentry->d_fsdata)->lower_path;
+}
+
 static inline void
 ecryptfs_set_dentry_lower_mnt(struct dentry *dentry, struct vfsmount *lower_mnt)
 {
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index cc7709e..e0f07fb 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -1027,8 +1027,7 @@
 	struct kstat lower_stat;
 	int rc;
 
-	rc = vfs_getattr(ecryptfs_dentry_to_lower_mnt(dentry),
-			 ecryptfs_dentry_to_lower(dentry), &lower_stat);
+	rc = vfs_getattr(ecryptfs_dentry_to_lower_path(dentry), &lower_stat);
 	if (!rc) {
 		fsstack_copy_attr_all(dentry->d_inode,
 				      ecryptfs_inode_to_lower(dentry->d_inode));