From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753632Ab1HPDa3 (ORCPT ); Mon, 15 Aug 2011 23:30:29 -0400 Received: from mga02.intel.com ([134.134.136.20]:8709 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753180Ab1HPDaZ (ORCPT ); Mon, 15 Aug 2011 23:30:25 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.67,351,1309762800"; d="scan'208";a="38096431" Message-Id: <20110816022328.684033431@intel.com> User-Agent: quilt/0.48-1 Date: Tue, 16 Aug 2011 10:20:07 +0800 From: Wu Fengguang to: cc: Peter Zijlstra , Jan Kara , Michael Rubin , Wu Fengguang cc: Andrew Morton CC: Christoph Hellwig CC: Dave Chinner CC: Greg Thelen CC: Minchan Kim CC: Vivek Goyal CC: Andrea Righi Cc: linux-mm Cc: LKML Subject: [PATCH 1/5] writeback: account per-bdi accumulated dirtied pages References: <20110816022006.348714319@intel.com> Content-Disposition: inline; filename=writeback-bdi-dirtied.patch Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Introduce the BDI_DIRTIED counter. It will be used for estimating the bdi's dirty bandwidth. CC: Jan Kara CC: Michael Rubin CC: Peter Zijlstra Signed-off-by: Wu Fengguang --- include/linux/backing-dev.h | 1 + mm/backing-dev.c | 2 ++ mm/page-writeback.c | 1 + 3 files changed, 4 insertions(+) --- linux-next.orig/include/linux/backing-dev.h 2011-06-12 20:58:31.000000000 +0800 +++ linux-next/include/linux/backing-dev.h 2011-06-12 20:58:40.000000000 +0800 @@ -40,6 +40,7 @@ typedef int (congested_fn)(void *, int); enum bdi_stat_item { BDI_RECLAIMABLE, BDI_WRITEBACK, + BDI_DIRTIED, BDI_WRITTEN, NR_BDI_STAT_ITEMS }; --- linux-next.orig/mm/page-writeback.c 2011-06-12 20:58:31.000000000 +0800 +++ linux-next/mm/page-writeback.c 2011-06-12 20:58:40.000000000 +0800 @@ -1530,6 +1530,7 @@ void account_page_dirtied(struct page *p __inc_zone_page_state(page, NR_FILE_DIRTY); __inc_zone_page_state(page, NR_DIRTIED); __inc_bdi_stat(mapping->backing_dev_info, BDI_RECLAIMABLE); + __inc_bdi_stat(mapping->backing_dev_info, BDI_DIRTIED); task_dirty_inc(current); task_io_account_write(PAGE_CACHE_SIZE); } --- linux-next.orig/mm/backing-dev.c 2011-06-12 20:58:31.000000000 +0800 +++ linux-next/mm/backing-dev.c 2011-06-12 20:58:55.000000000 +0800 @@ -97,6 +97,7 @@ static int bdi_debug_stats_show(struct s "BdiDirtyThresh: %10lu kB\n" "DirtyThresh: %10lu kB\n" "BackgroundThresh: %10lu kB\n" + "BdiDirtied: %10lu kB\n" "BdiWritten: %10lu kB\n" "BdiWriteBandwidth: %10lu kBps\n" "b_dirty: %10lu\n" @@ -109,6 +110,7 @@ static int bdi_debug_stats_show(struct s K(bdi_thresh), K(dirty_thresh), K(background_thresh), + (unsigned long) K(bdi_stat(bdi, BDI_DIRTIED)), (unsigned long) K(bdi_stat(bdi, BDI_WRITTEN)), (unsigned long) K(bdi->write_bandwidth), nr_dirty, From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail137.messagelabs.com (mail137.messagelabs.com [216.82.249.19]) by kanga.kvack.org (Postfix) with SMTP id BC8EA6B016F for ; Mon, 15 Aug 2011 23:30:26 -0400 (EDT) Message-Id: <20110816022328.684033431@intel.com> Date: Tue, 16 Aug 2011 10:20:07 +0800 From: Wu Fengguang Subject: [PATCH 1/5] writeback: account per-bdi accumulated dirtied pages References: <20110816022006.348714319@intel.com> Content-Disposition: inline; filename=writeback-bdi-dirtied.patch Sender: owner-linux-mm@kvack.org List-ID: To: linux-fsdevel@vger.kernel.org Cc: Peter Zijlstra , Jan Kara , Michael Rubin , Wu Fengguang , Andrew Morton , Christoph Hellwig , Dave Chinner , Greg Thelen , Minchan Kim , Vivek Goyal , Andrea Righi , linux-mm , LKML Introduce the BDI_DIRTIED counter. It will be used for estimating the bdi's dirty bandwidth. CC: Jan Kara CC: Michael Rubin CC: Peter Zijlstra Signed-off-by: Wu Fengguang --- include/linux/backing-dev.h | 1 + mm/backing-dev.c | 2 ++ mm/page-writeback.c | 1 + 3 files changed, 4 insertions(+) --- linux-next.orig/include/linux/backing-dev.h 2011-06-12 20:58:31.000000000 +0800 +++ linux-next/include/linux/backing-dev.h 2011-06-12 20:58:40.000000000 +0800 @@ -40,6 +40,7 @@ typedef int (congested_fn)(void *, int); enum bdi_stat_item { BDI_RECLAIMABLE, BDI_WRITEBACK, + BDI_DIRTIED, BDI_WRITTEN, NR_BDI_STAT_ITEMS }; --- linux-next.orig/mm/page-writeback.c 2011-06-12 20:58:31.000000000 +0800 +++ linux-next/mm/page-writeback.c 2011-06-12 20:58:40.000000000 +0800 @@ -1530,6 +1530,7 @@ void account_page_dirtied(struct page *p __inc_zone_page_state(page, NR_FILE_DIRTY); __inc_zone_page_state(page, NR_DIRTIED); __inc_bdi_stat(mapping->backing_dev_info, BDI_RECLAIMABLE); + __inc_bdi_stat(mapping->backing_dev_info, BDI_DIRTIED); task_dirty_inc(current); task_io_account_write(PAGE_CACHE_SIZE); } --- linux-next.orig/mm/backing-dev.c 2011-06-12 20:58:31.000000000 +0800 +++ linux-next/mm/backing-dev.c 2011-06-12 20:58:55.000000000 +0800 @@ -97,6 +97,7 @@ static int bdi_debug_stats_show(struct s "BdiDirtyThresh: %10lu kB\n" "DirtyThresh: %10lu kB\n" "BackgroundThresh: %10lu kB\n" + "BdiDirtied: %10lu kB\n" "BdiWritten: %10lu kB\n" "BdiWriteBandwidth: %10lu kBps\n" "b_dirty: %10lu\n" @@ -109,6 +110,7 @@ static int bdi_debug_stats_show(struct s K(bdi_thresh), K(dirty_thresh), K(background_thresh), + (unsigned long) K(bdi_stat(bdi, BDI_DIRTIED)), (unsigned long) K(bdi_stat(bdi, BDI_WRITTEN)), (unsigned long) K(bdi->write_bandwidth), nr_dirty, -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. 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