From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753635Ab0ILPze (ORCPT ); Sun, 12 Sep 2010 11:55:34 -0400 Received: from mga02.intel.com ([134.134.136.20]:32253 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753343Ab0ILPzB (ORCPT ); Sun, 12 Sep 2010 11:55:01 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.56,355,1280732400"; d="scan'208";a="553787498" Message-Id: <20100912155203.815667143@intel.com> User-Agent: quilt/0.48-1 Date: Sun, 12 Sep 2010 23:49:53 +0800 From: Wu Fengguang To: linux-mm Cc: LKML , Jan Kara , Wu Fengguang CC: Andrew Morton CC: "Theodore Ts'o" CC: Dave Chinner CC: Peter Zijlstra CC: Mel Gorman CC: Rik van Riel CC: KOSAKI Motohiro CC: Chris Mason CC: Christoph Hellwig CC: Li Shaohua Subject: [PATCH 08/17] writeback: account per-bdi accumulated written pages References: <20100912154945.758129106@intel.com> Content-Disposition: inline; filename=writeback-bdi-written.patch Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Introduce the BDI_WRITTEN counter. It will be used for estimating the bdi's write bandwidth. Signed-off-by: Jan Kara Signed-off-by: Wu Fengguang --- include/linux/backing-dev.h | 1 + mm/backing-dev.c | 6 ++++-- mm/page-writeback.c | 1 + 3 files changed, 6 insertions(+), 2 deletions(-) --- linux-next.orig/include/linux/backing-dev.h 2010-09-09 15:39:25.000000000 +0800 +++ linux-next/include/linux/backing-dev.h 2010-09-09 16:02:43.000000000 +0800 @@ -40,6 +40,7 @@ typedef int (congested_fn)(void *, int); enum bdi_stat_item { BDI_RECLAIMABLE, BDI_WRITEBACK, + BDI_WRITTEN, NR_BDI_STAT_ITEMS }; --- linux-next.orig/mm/backing-dev.c 2010-09-09 15:39:25.000000000 +0800 +++ linux-next/mm/backing-dev.c 2010-09-09 16:02:43.000000000 +0800 @@ -91,6 +91,7 @@ static int bdi_debug_stats_show(struct s "BdiDirtyThresh: %8lu kB\n" "DirtyThresh: %8lu kB\n" "BackgroundThresh: %8lu kB\n" + "BdiWritten: %8lu kB\n" "b_dirty: %8lu\n" "b_io: %8lu\n" "b_more_io: %8lu\n" @@ -98,8 +99,9 @@ static int bdi_debug_stats_show(struct s "state: %8lx\n", (unsigned long) K(bdi_stat(bdi, BDI_WRITEBACK)), (unsigned long) K(bdi_stat(bdi, BDI_RECLAIMABLE)), - K(bdi_thresh), K(dirty_thresh), - K(background_thresh), nr_dirty, nr_io, nr_more_io, + K(bdi_thresh), K(dirty_thresh), K(background_thresh), + (unsigned long) K(bdi_stat(bdi, BDI_WRITTEN)), + nr_dirty, nr_io, nr_more_io, !list_empty(&bdi->bdi_list), bdi->state); #undef K --- linux-next.orig/mm/page-writeback.c 2010-09-09 16:02:33.000000000 +0800 +++ linux-next/mm/page-writeback.c 2010-09-09 16:02:43.000000000 +0800 @@ -1305,6 +1305,7 @@ int test_clear_page_writeback(struct pag PAGECACHE_TAG_WRITEBACK); if (bdi_cap_account_writeback(bdi)) { __dec_bdi_stat(bdi, BDI_WRITEBACK); + __inc_bdi_stat(bdi, BDI_WRITTEN); __bdi_writeout_inc(bdi); } } 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 8CEF26B0089 for ; Sun, 12 Sep 2010 11:55:02 -0400 (EDT) Message-Id: <20100912155203.815667143@intel.com> Date: Sun, 12 Sep 2010 23:49:53 +0800 From: Wu Fengguang Subject: [PATCH 08/17] writeback: account per-bdi accumulated written pages References: <20100912154945.758129106@intel.com> Content-Disposition: inline; filename=writeback-bdi-written.patch Sender: owner-linux-mm@kvack.org To: linux-mm Cc: LKML , Jan Kara , Wu Fengguang , Andrew Morton , Theodore Ts'o , Dave Chinner , Peter Zijlstra , Mel Gorman , Rik van Riel , KOSAKI Motohiro , Chris Mason , Christoph Hellwig , Li Shaohua List-ID: Introduce the BDI_WRITTEN counter. It will be used for estimating the bdi's write bandwidth. Signed-off-by: Jan Kara Signed-off-by: Wu Fengguang --- include/linux/backing-dev.h | 1 + mm/backing-dev.c | 6 ++++-- mm/page-writeback.c | 1 + 3 files changed, 6 insertions(+), 2 deletions(-) --- linux-next.orig/include/linux/backing-dev.h 2010-09-09 15:39:25.000000000 +0800 +++ linux-next/include/linux/backing-dev.h 2010-09-09 16:02:43.000000000 +0800 @@ -40,6 +40,7 @@ typedef int (congested_fn)(void *, int); enum bdi_stat_item { BDI_RECLAIMABLE, BDI_WRITEBACK, + BDI_WRITTEN, NR_BDI_STAT_ITEMS }; --- linux-next.orig/mm/backing-dev.c 2010-09-09 15:39:25.000000000 +0800 +++ linux-next/mm/backing-dev.c 2010-09-09 16:02:43.000000000 +0800 @@ -91,6 +91,7 @@ static int bdi_debug_stats_show(struct s "BdiDirtyThresh: %8lu kB\n" "DirtyThresh: %8lu kB\n" "BackgroundThresh: %8lu kB\n" + "BdiWritten: %8lu kB\n" "b_dirty: %8lu\n" "b_io: %8lu\n" "b_more_io: %8lu\n" @@ -98,8 +99,9 @@ static int bdi_debug_stats_show(struct s "state: %8lx\n", (unsigned long) K(bdi_stat(bdi, BDI_WRITEBACK)), (unsigned long) K(bdi_stat(bdi, BDI_RECLAIMABLE)), - K(bdi_thresh), K(dirty_thresh), - K(background_thresh), nr_dirty, nr_io, nr_more_io, + K(bdi_thresh), K(dirty_thresh), K(background_thresh), + (unsigned long) K(bdi_stat(bdi, BDI_WRITTEN)), + nr_dirty, nr_io, nr_more_io, !list_empty(&bdi->bdi_list), bdi->state); #undef K --- linux-next.orig/mm/page-writeback.c 2010-09-09 16:02:33.000000000 +0800 +++ linux-next/mm/page-writeback.c 2010-09-09 16:02:43.000000000 +0800 @@ -1305,6 +1305,7 @@ int test_clear_page_writeback(struct pag PAGECACHE_TAG_WRITEBACK); if (bdi_cap_account_writeback(bdi)) { __dec_bdi_stat(bdi, BDI_WRITEBACK); + __inc_bdi_stat(bdi, BDI_WRITTEN); __bdi_writeout_inc(bdi); } } -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. 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