From patchwork Wed Mar 21 16:14:28 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Artem Bityutskiy X-Patchwork-Id: 148034 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 7E1E0B6F62 for ; Thu, 22 Mar 2012 03:18:54 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758185Ab2CUQSS (ORCPT ); Wed, 21 Mar 2012 12:18:18 -0400 Received: from mga03.intel.com ([143.182.124.21]:3084 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757638Ab2CUQPQ (ORCPT ); Wed, 21 Mar 2012 12:15:16 -0400 Received: from azsmga001.ch.intel.com ([10.2.17.19]) by azsmga101.ch.intel.com with ESMTP; 21 Mar 2012 09:15:14 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.71,315,1320652800"; d="scan'208";a="121560001" Received: from blue.fi.intel.com (HELO np.fi.intel.com) ([10.237.72.50]) by azsmga001.ch.intel.com with ESMTP; 21 Mar 2012 09:14:15 -0700 From: Artem Bityutskiy To: Jan Kara Cc: Ext4 Mailing List , Linux FS Maling List , Linux Kernel Maling List Subject: [PATCH 1/8] mm: export dirty_writeback_interval Date: Wed, 21 Mar 2012 18:14:28 +0200 Message-Id: <1332346475-1441-2-git-send-email-dedekind1@gmail.com> X-Mailer: git-send-email 1.7.7.6 In-Reply-To: <1332346475-1441-1-git-send-email-dedekind1@gmail.com> References: <1332346475-1441-1-git-send-email-dedekind1@gmail.com> Sender: linux-ext4-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org From: Artem Bityutskiy Export 'dirty_writeback_interval' to make it visible to file-systems. We are going to push superblock management down to file-systems and get rid of the 'sync_supers' kernel thread completly. Signed-off-by: Artem Bityutskiy --- mm/page-writeback.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 363ba70..5e39858 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -95,6 +95,8 @@ unsigned long vm_dirty_bytes; */ unsigned int dirty_writeback_interval = 5 * 100; /* centiseconds */ +EXPORT_SYMBOL_GPL(dirty_writeback_interval); + /* * The longest time for which data is allowed to remain dirty */