From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Layton, Evan J" <evan.j.layton@intel.com>
Subject: Triggering readpages operation
Date: Wed, 25 Jul 2012 19:59:26 +0000
Message-ID: <CC35AC3D.1A5D%evan.j.layton@intel.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 8BIT
Cc: "Jelinek, Sarah" <sarah.jelinek@intel.com>
To: "linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>
Return-path: <linux-fsdevel-owner@vger.kernel.org>
Received: from mga09.intel.com ([134.134.136.24]:28709 "EHLO mga09.intel.com"
	rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP
	id S1752511Ab2GYT72 convert rfc822-to-8bit (ORCPT
	<rfc822;linux-fsdevel@vger.kernel.org>);
	Wed, 25 Jul 2012 15:59:28 -0400
Content-Language: en-US
Content-ID: <F44FA8AF54AA4E46A88D412B30B1BC90@intel.com>
Sender: linux-fsdevel-owner@vger.kernel.org
List-ID: <linux-fsdevel.vger.kernel.org>


I'm working on a project at intel and working on a better understanding of "file system" operations specifically triggering readpages. However I have not been able to figure out how to drive or force the file system to use readpages. I had thought that readahead() would allow me to do this but it's not driving readpages and just goes down the readpage path. Any suggestions on the best way to get the file system to trigger this operation?

Thanks,
-evan