reiserfs: remove IS_PRIVATE helpers

There are a number of helper functions for marking a reiserfs inode
private that were leftover from reiserfs did its own thing wrt to
private inodes.  S_PRIVATE has been in the kernel for some time, so this
patch removes the helpers and uses IS_PRIVATE instead.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/reiserfs/namei.c b/fs/reiserfs/namei.c
index 3ce3f8b1..c8430f1 100644
--- a/fs/reiserfs/namei.c
+++ b/fs/reiserfs/namei.c
@@ -358,9 +358,10 @@
 			return ERR_PTR(-EACCES);
 		}
 
-		/* Propogate the priv_object flag so we know we're in the priv tree */
-		if (is_reiserfs_priv_object(dir))
-			reiserfs_mark_inode_private(inode);
+		/* Propagate the private flag so we know we're
+		 * in the priv tree */
+		if (IS_PRIVATE(dir))
+			inode->i_flags |= S_PRIVATE;
 	}
 	reiserfs_write_unlock(dir->i_sb);
 	if (retval == IO_ERROR) {