From patchwork Thu Mar  3 17:29:04 2011
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
X-Patchwork-Submitter: Dan Magenheimer <dan.magenheimer@oracle.com>
X-Patchwork-Id: 606541
Received: from vger.kernel.org (vger.kernel.org [209.132.180.67])
	by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id p23HUaZk009908
	for <patchwork-linux-btrfs@patchwork.kernel.org>;
	Thu, 3 Mar 2011 17:30:37 GMT
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
	id S1758477Ab1CCR3z (ORCPT
	<rfc822;patchwork-linux-btrfs@patchwork.kernel.org>);
	Thu, 3 Mar 2011 12:29:55 -0500
Received: from rcsinet10.oracle.com ([148.87.113.121]:26099 "EHLO
	rcsinet10.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
	with ESMTP id S1758201Ab1CCR3y convert rfc822-to-8bit (ORCPT
	<rfc822; linux-btrfs@vger.kernel.org>); Thu, 3 Mar 2011 12:29:54 -0500
Received: from rcsinet15.oracle.com (rcsinet15.oracle.com [148.87.113.117])
	by rcsinet10.oracle.com (Switch-3.4.2/Switch-3.4.2) with ESMTP id
	p23HTXEa009609
	(version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK);
	Thu, 3 Mar 2011 17:29:34 GMT
Received: from acsmt354.oracle.com (acsmt354.oracle.com [141.146.40.154])
	by rcsinet15.oracle.com (Switch-3.4.2/Switch-3.4.1) with ESMTP id
	p23HR2lC027262; Thu, 3 Mar 2011 17:29:31 GMT
Received: from abhmt020.oracle.com by acsmt353.oracle.com
	with ESMTP id 1055461221299173370; Thu, 03 Mar 2011 09:29:30 -0800
MIME-Version: 1.0
Message-ID: <763a2305-27c6-4f44-8962-db72b434c037@default>
Date: Thu, 3 Mar 2011 09:29:04 -0800 (PST)
From: Dan Magenheimer <dan.magenheimer@oracle.com>
To: Minchan Kim <minchan.kim@gmail.com>
Cc: Matt <jackdachef@gmail.com>, gregkh@suse.de,
	Chris Mason <chris.mason@oracle.com>, linux-kernel@vger.kernel.org,
	linux-mm@kvack.org, ngupta@vflare.org, linux-btrfs@vger.kernel.org,
	Josef Bacik <josef@redhat.com>, Dan Rosenberg <drosenberg@vsecurity.com>,
	Yan Zheng <zheng.z.yan@intel.com>, miaox@cn.fujitsu.com,
	Li Zefan <lizf@cn.fujitsu.com>
Subject: RE: [PATCH V2 0/3] drivers/staging: zcache: dynamic page cache/swap
	compression
References: <20110207032407.GA27404@ca-server1.us.oracle.com>
	<1ddd01a8-591a-42bc-8bb3-561843b31acb@default>
	<AANLkTimFATx-gYVgY_pVdZsySSBmXvKFkhTJUeVFBcop@mail.gmail.com>
	<AANLkTimqSSxHrLhL9t4DOmDeuAA41B9e-qnr+vnUsucL@mail.gmail.com>
	<AANLkTi=4QkV4wtMmDd6+XXhvkva+fq9m5PVYGC0qBUc3@mail.gmail.com>
	<AANLkTimOssgM7JYSpwB=5zmF_JJ2ByH+PWO7N+YZNB_y@mail.gmail.com>
	<e647042e-419e-4e61-a563-e489596bd659@default
	AANLkTim_U+mJtHk7drvqMOmUwd4ro8J0dazZMDsNqH=o@mail.gmail.com>
In-Reply-To: <AANLkTim_U+mJtHk7drvqMOmUwd4ro8J0dazZMDsNqH=o@mail.gmail.com>
X-Priority: 3
X-Mailer: Oracle Beehive Extensions for Outlook 2.0.1.4.1.0  (410211) [OL
	12.0.6550.5003]
X-Source-IP: acsmt354.oracle.com [141.146.40.154]
X-Auth-Type: Internal IP
X-CT-RefId: str=0001.0A090203.4D6FCFFC.01E5,ss=1,fgs=0
Sender: linux-btrfs-owner@vger.kernel.org
Precedence: bulk
List-ID: <linux-btrfs.vger.kernel.org>
X-Mailing-List: linux-btrfs@vger.kernel.org
X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by
	milter-greylist-4.2.6 (demeter1.kernel.org [140.211.167.41]);
	Thu, 03 Mar 2011 17:30:37 +0000 (UTC)


diff -Napur -X linux-2.6.37.1/Documentation/dontdiff linux-2.6.37.1/mm/cleancache.c linux-2.6.37.1-fix/mm/cleancache.c
--- linux-2.6.37.1/mm/cleancache.c	2011-02-25 11:38:47.000000000 -0800
+++ linux-2.6.37.1-fix/mm/cleancache.c	2011-02-25 08:53:46.000000000 -0800
@@ -78,15 +78,14 @@ static int cleancache_get_key(struct ino
 	int (*fhfn)(struct dentry *, __u32 *fh, int *, int);
 	int maxlen = CLEANCACHE_KEY_MAX;
 	struct super_block *sb = inode->i_sb;
-	struct dentry *d;
 
 	key->u.ino = inode->i_ino;
 	if (sb->s_export_op != NULL) {
 		fhfn = sb->s_export_op->encode_fh;
 		if  (fhfn) {
-			d = list_first_entry(&inode->i_dentry,
-						struct dentry, d_alias);
-			(void)(*fhfn)(d, &key->u.fh[0], &maxlen, 0);
+			struct dentry d;
+			d.d_inode = inode;
+			(void)(*fhfn)(&d, &key->u.fh[0], &maxlen, 0);
 			if (maxlen > CLEANCACHE_KEY_MAX)
 				return -1;
 		}