From: Dan Magenheimer Subject: [PATCH V3 7/8] Cleancache: ext4 hook for cleancache Date: Mon, 21 Jun 2010 16:21:40 -0700 Message-ID: <20100621232140.GA27990__37650.8255642422$1277162659$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]:48795 "EHLO rcsinet10.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758343Ab0FUXXX (ORCPT ); Mon, 21 Jun 2010 19:23:23 -0400 Content-Disposition: inline Sender: linux-ext4-owner@vger.kernel.org List-ID: [PATCH V3 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-2.6.35-rc2/fs/ext4/super.c 2010-06-05 21:43:24.000000000 -0600 +++ linux-2.6.35-rc2-cleancache/fs/ext4/super.c 2010-06-11 09:01:37.000000000 -0600 @@ -39,6 +39,7 @@ #include #include #include +#include #include #include "ext4.h" @@ -1789,6 +1790,7 @@ 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; }