From: Dan Magenheimer Subject: [PATCH V4 8/8] Cleancache: ocfs2 hook for cleancache Date: Mon, 30 Aug 2010 15:34:04 -0700 Message-ID: <20100830223404.GA1381__16008.8102952161$1283207811$gmane$org@ca-server1.us.oracle.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii To: chris.mason@oracle.com, viro@zeniv.linux.org.uk, akpm@linux-foundation.org, adilger@sun.com, tytso@mit.edu, mfasheh@suse.com, joel.becker@oracle.com, matthew@wil.cx, linux-btrfs@vger. Return-path: Received: from rcsinet10.oracle.com ([148.87.113.121]:58621 "EHLO rcsinet10.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755607Ab0H3Wg1 (ORCPT ); Mon, 30 Aug 2010 18:36:27 -0400 Content-Disposition: inline Sender: linux-ext4-owner@vger.kernel.org List-ID: [PATCH V4 8/8] Cleancache: ocfs2 hook for cleancache Filesystems must explicitly enable cleancache by calling cleancache_init_fs anytime a instance of the filesystem is mounted and must save the returned poolid. 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. Signed-off-by: Dan Magenheimer Acked-by: Joel Becker Diffstat: super.c | 3 +++ 1 file changed, 3 insertions(+) --- linux-2.6.36-rc3/fs/ocfs2/super.c 2010-08-29 09:36:04.000000000 -0600 +++ linux-2.6.36-rc3-cleancache/fs/ocfs2/super.c 2010-08-30 09:20:43.000000000 -0600 @@ -42,6 +42,7 @@ #include #include #include +#include #define MLOG_MASK_PREFIX ML_SUPER #include @@ -2284,6 +2285,8 @@ static int ocfs2_initialize_super(struct mlog_errno(status); goto bail; } + sb->cleancache_poolid = + cleancache_init_shared_fs((char *)&uuid_net_key, PAGE_SIZE); bail: mlog_exit(status);