new helper: file_inode(file)

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/hpfs/dir.c b/fs/hpfs/dir.c
index 78e12b2..546f6d3 100644
--- a/fs/hpfs/dir.c
+++ b/fs/hpfs/dir.c
@@ -25,7 +25,7 @@
 	loff_t new_off = off + (whence == 1 ? filp->f_pos : 0);
 	loff_t pos;
 	struct quad_buffer_head qbh;
-	struct inode *i = filp->f_path.dentry->d_inode;
+	struct inode *i = file_inode(filp);
 	struct hpfs_inode_info *hpfs_inode = hpfs_i(i);
 	struct super_block *s = i->i_sb;
 
@@ -57,7 +57,7 @@
 
 static int hpfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
 {
-	struct inode *inode = filp->f_path.dentry->d_inode;
+	struct inode *inode = file_inode(filp);
 	struct hpfs_inode_info *hpfs_inode = hpfs_i(inode);
 	struct quad_buffer_head qbh;
 	struct hpfs_dirent *de;
diff --git a/fs/hpfs/file.c b/fs/hpfs/file.c
index fbfe2df..9f9dbec 100644
--- a/fs/hpfs/file.c
+++ b/fs/hpfs/file.c
@@ -152,7 +152,7 @@
 	retval = do_sync_write(file, buf, count, ppos);
 	if (retval > 0) {
 		hpfs_lock(file->f_path.dentry->d_sb);
-		hpfs_i(file->f_path.dentry->d_inode)->i_dirty = 1;
+		hpfs_i(file_inode(file))->i_dirty = 1;
 		hpfs_unlock(file->f_path.dentry->d_sb);
 	}
 	return retval;