From: Dan Magenheimer Subject: [PATCH V4 7/8] Cleancache: ext4 hook for cleancache Date: Mon, 30 Aug 2010 15:33:34 -0700 Message-ID: <20100830223334.GA1361__18180.9990121566$1283207800$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]:58613 "EHLO rcsinet10.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754621Ab0H3Wg0 (ORCPT ); Mon, 30 Aug 2010 18:36:26 -0400 Content-Disposition: inline Sender: linux-ext4-owner@vger.kernel.org List-ID: [PATCH V4 7/8] Cleancache: ext4 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. For ext4, all other cleancache hooks are in the VFS layer including the matching cleancache_flush_fs hook which must be called on unmount. Signed-off-by: Dan Magenheimer Acked-by: Andreas Dilger Diffstat: super.c | 2 ++ 1 file changed, 2 insertions(+) --- linux-2.6.36-rc3/fs/ext4/super.c 2010-08-29 09:36:04.000000000 -0600 +++ linux-2.6.36-rc3-cleancache/fs/ext4/super.c 2010-08-30 09:20:43.000000000 -0600 @@ -39,6 +39,7 @@ #include #include #include +#include #include #include "ext4.h" @@ -1849,6 +1850,7 @@ static int ext4_setup_super(struct super EXT4_INODES_PER_GROUP(sb), sbi->s_mount_opt); + sb->cleancache_poolid = cleancache_init_fs(PAGE_SIZE); return res; }