From patchwork Thu Apr 14 21:19:32 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dan Magenheimer X-Patchwork-Id: 709651 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 p3ELLVGG015743 for ; Thu, 14 Apr 2011 21:21:32 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753135Ab1DNVUu (ORCPT ); Thu, 14 Apr 2011 17:20:50 -0400 Received: from rcsinet10.oracle.com ([148.87.113.121]:23937 "EHLO rcsinet10.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753022Ab1DNVUr (ORCPT ); Thu, 14 Apr 2011 17:20:47 -0400 Received: from acsinet15.oracle.com (acsinet15.oracle.com [141.146.126.227]) by rcsinet10.oracle.com (Switch-3.4.2/Switch-3.4.2) with ESMTP id p3ELJb4p005053 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Thu, 14 Apr 2011 21:19:39 GMT Received: from acsmt358.oracle.com (acsmt358.oracle.com [141.146.40.158]) by acsinet15.oracle.com (Switch-3.4.2/Switch-3.4.1) with ESMTP id p3ELJYsM009085 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 14 Apr 2011 21:19:35 GMT Received: from ca-server1.us.oracle.com (ca-server1.us.oracle.com [139.185.48.5]) by acsmt358.oracle.com (8.12.11.20060308/8.12.11) with ESMTP id p3ELJXDH018837; Thu, 14 Apr 2011 16:19:33 -0500 Received: from dmagenhe by ca-server1.us.oracle.com with local (Exim 4.69) (envelope-from ) id 1QATwq-0007Ey-Qu; Thu, 14 Apr 2011 14:19:32 -0700 Date: Thu, 14 Apr 2011 14:19:32 -0700 From: Dan Magenheimer To: chris.mason@oracle.com, viro@zeniv.linux.org.uk, akpm@linux-foundation.org, adilger.kernel@dilger.ca, tytso@mit.edu, mfasheh@suse.com, jlbec@evilplan.org, matthew@wil.cx, linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, ocfs2-devel@oss.oracle.com, linux-mm@kvack.org, hch@infradead.org, ngupta@vflare.org, jeremy@goop.org, JBeulich@novell.com, kurt.hackel@oracle.com, npiggin@kernel.dk, dave.mccracken@oracle.com, riel@redhat.com, avi@redhat.com, konrad.wilk@oracle.com, dan.magenheimer@oracle.com, mel@csn.ul.ie, yinghan@google.com, gthelen@google.com, torvalds@linux-foundation.org Subject: [PATCH V8 8/8] ocfs2: add cleancache support Message-ID: <20110414211932.GA27830@ca-server1.us.oracle.com> MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.5.16 (2007-06-11) X-Source-IP: acsmt358.oracle.com [141.146.40.158] X-Auth-Type: Internal IP X-CT-RefId: str=0001.0A090209.4DA764E8.0043,ss=1,fgs=0 Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: 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, 14 Apr 2011 21:21:32 +0000 (UTC) [PATCH V8 8/8] ocfs2: add cleancache support This eighth patch of eight in this cleancache series "opts-in" cleancache for ocfs2. Clustered filesystems must explicitly enable cleancache by calling cleancache_init_shared_fs anytime an instance of the filesystem is mounted. Ocfs2 is currently the only user of the clustered filesystem interface but nevertheless, the cleancache hooks in the VFS layer are sufficient for ocfs2 including the matching cleancache_flush_fs hook which must be called on unmount. Details and a FAQ can be found in Documentation/vm/cleancache.txt [v8: trivial merge conflict update] [v5: jeremy@goop.org: simplify init hook and any future fs init changes] Signed-off-by: Dan Magenheimer Signed-off-by: Joel Becker Reviewed-by: Jeremy Fitzhardinge Reviewed-by: Konrad Rzeszutek Wilk Cc: Mark Fasheh Cc: Andrew Morton Cc: Al Viro Cc: Matthew Wilcox Cc: Nick Piggin Cc: Mel Gorman Cc: Rik Van Riel Cc: Jan Beulich Cc: Chris Mason Cc: Andreas Dilger Cc: Ted Tso Cc: Nitin Gupta --- Diffstat: fs/ocfs2/super.c | 2 ++ 1 file changed, 2 insertions(+) -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html --- linux-2.6.39-rc3/fs/ocfs2/super.c 2011-04-11 18:21:51.000000000 -0600 +++ linux-2.6.39-rc3-cleancache/fs/ocfs2/super.c 2011-04-13 17:11:45.664861458 -0600 @@ -41,6 +41,7 @@ #include #include #include +#include #define CREATE_TRACE_POINTS #include "ocfs2_trace.h" @@ -2352,6 +2353,7 @@ static int ocfs2_initialize_super(struct mlog_errno(status); goto bail; } + cleancache_init_shared_fs((char *)&uuid_net_key, sb); bail: return status;