Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932667AbVLOAdV (ORCPT ); Wed, 14 Dec 2005 19:33:21 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932649AbVLOAcy (ORCPT ); Wed, 14 Dec 2005 19:32:54 -0500 Received: from omx1-ext.sgi.com ([192.48.179.11]:29621 "EHLO omx1.americas.sgi.com") by vger.kernel.org with ESMTP id S932660AbVLOAct (ORCPT ); Wed, 14 Dec 2005 19:32:49 -0500 Date: Wed, 14 Dec 2005 16:32:48 -0800 (PST) From: Christoph Lameter To: linux-kernel@vger.kernel.org Cc: Christoph Lameter Message-Id: <20051215003248.31788.8200.sendpatchset@schroedinger.engr.sgi.com> In-Reply-To: <20051215003151.31788.8755.sendpatchset@schroedinger.engr.sgi.com> References: <20051215003151.31788.8755.sendpatchset@schroedinger.engr.sgi.com> Subject: [RFC3 11/14] Convert nr_writeback Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 6799 Lines: 168 Per zone page writeback counts Signed-off-by: Christoph Lameter Index: linux-2.6.15-rc5-mm2/drivers/base/node.c =================================================================== --- linux-2.6.15-rc5-mm2.orig/drivers/base/node.c 2005-12-14 15:34:57.000000000 -0800 +++ linux-2.6.15-rc5-mm2/drivers/base/node.c 2005-12-14 15:35:38.000000000 -0800 @@ -52,9 +52,6 @@ static ssize_t node_read_meminfo(struct for (j = 0; j < NR_STAT_ITEMS; j++) nr[j] = node_page_state(nid, j); - /* Check for negative values in these approximate counters */ - if ((long)ps.nr_writeback < 0) - ps.nr_writeback = 0; n = sprintf(buf, "\n" "Node %d MemTotal: %8lu kB\n" @@ -81,7 +78,7 @@ static ssize_t node_read_meminfo(struct nid, K(i.totalram - i.totalhigh), nid, K(i.freeram - i.freehigh), nid, K(nr[NR_DIRTY]), - nid, K(ps.nr_writeback), + nid, K(nr[NR_WRITEBACK]), nid, K(nr[NR_MAPPED]), nid, K(nr[NR_PAGECACHE]), nid, K(nr[NR_SLAB])); Index: linux-2.6.15-rc5-mm2/fs/proc/proc_misc.c =================================================================== --- linux-2.6.15-rc5-mm2.orig/fs/proc/proc_misc.c 2005-12-14 15:34:57.000000000 -0800 +++ linux-2.6.15-rc5-mm2/fs/proc/proc_misc.c 2005-12-14 15:35:38.000000000 -0800 @@ -189,7 +189,7 @@ static int meminfo_read_proc(char *page, K(i.totalswap), K(i.freeswap), K(global_page_state(NR_DIRTY)), - K(ps.nr_writeback), + K(global_page_state(NR_WRITEBACK)), K(global_page_state(NR_MAPPED)), K(global_page_state(NR_SLAB)), K(allowed), Index: linux-2.6.15-rc5-mm2/arch/i386/mm/pgtable.c =================================================================== --- linux-2.6.15-rc5-mm2.orig/arch/i386/mm/pgtable.c 2005-12-14 15:34:57.000000000 -0800 +++ linux-2.6.15-rc5-mm2/arch/i386/mm/pgtable.c 2005-12-14 15:35:38.000000000 -0800 @@ -60,7 +60,7 @@ void show_mem(void) get_page_state(&ps); printk(KERN_INFO "%lu pages dirty\n", global_page_state(NR_DIRTY)); - printk(KERN_INFO "%lu pages writeback\n", ps.nr_writeback); + printk(KERN_INFO "%lu pages writeback\n", global_page_state(NR_WRITEBACK)); printk(KERN_INFO "%lu pages mapped\n", ps.nr_mapped); printk(KERN_INFO "%lu pages slab\n", ps.nr_slab); printk(KERN_INFO "%lu pages pagetables\n", ps.nr_page_table_pages); Index: linux-2.6.15-rc5-mm2/mm/swap_prefetch.c =================================================================== --- linux-2.6.15-rc5-mm2.orig/mm/swap_prefetch.c 2005-12-14 15:34:57.000000000 -0800 +++ linux-2.6.15-rc5-mm2/mm/swap_prefetch.c 2005-12-14 15:35:38.000000000 -0800 @@ -315,7 +315,7 @@ static int prefetch_suitable(void) get_page_state(&ps); /* We shouldn't prefetch when we are doing writeback */ - if (ps.nr_writeback) + if (global_page_state(NR_WRITEBACK)) goto out; /* Delay prefetching if we have significant amounts of dirty data */ Index: linux-2.6.15-rc5-mm2/mm/page_alloc.c =================================================================== --- linux-2.6.15-rc5-mm2.orig/mm/page_alloc.c 2005-12-14 15:35:34.000000000 -0800 +++ linux-2.6.15-rc5-mm2/mm/page_alloc.c 2005-12-14 15:37:34.000000000 -0800 @@ -597,7 +597,7 @@ static int rmqueue_bulk(struct zone *zon } char *stat_item_descr[NR_STAT_ITEMS] = { - "mapped","pagecache", "slab", "pagetable", "dirty" + "mapped","pagecache", "slab", "pagetable", "dirty", "writeback" }; /* @@ -1780,7 +1780,7 @@ void show_free_areas(void) active, inactive, global_page_state(NR_DIRTY), - ps.nr_writeback, + global_page_state(NR_WRITEBACK), ps.nr_unstable, nr_free_pages(), global_page_state(NR_SLAB), Index: linux-2.6.15-rc5-mm2/include/linux/page-flags.h =================================================================== --- linux-2.6.15-rc5-mm2.orig/include/linux/page-flags.h 2005-12-14 15:34:57.000000000 -0800 +++ linux-2.6.15-rc5-mm2/include/linux/page-flags.h 2005-12-14 15:35:38.000000000 -0800 @@ -82,7 +82,6 @@ * allowed. */ struct page_state { - unsigned long nr_writeback; /* Pages under writeback */ unsigned long nr_unstable; /* NFS unstable pages */ #define GET_PAGE_STATE_LAST nr_unstable @@ -291,7 +290,7 @@ void dec_zone_page_state(const struct pa do { \ if (!test_and_set_bit(PG_writeback, \ &(page)->flags)) \ - inc_page_state(nr_writeback); \ + inc_zone_page_state(page, NR_WRITEBACK); \ } while (0) #define TestSetPageWriteback(page) \ ({ \ @@ -299,14 +298,14 @@ void dec_zone_page_state(const struct pa ret = test_and_set_bit(PG_writeback, \ &(page)->flags); \ if (!ret) \ - inc_page_state(nr_writeback); \ + inc_zone_page_state(page, NR_WRITEBACK); \ ret; \ }) #define ClearPageWriteback(page) \ do { \ if (test_and_clear_bit(PG_writeback, \ &(page)->flags)) \ - dec_page_state(nr_writeback); \ + dec_zone_page_state(page, NR_WRITEBACK); \ } while (0) #define TestClearPageWriteback(page) \ ({ \ @@ -314,7 +313,7 @@ void dec_zone_page_state(const struct pa ret = test_and_clear_bit(PG_writeback, \ &(page)->flags); \ if (ret) \ - dec_page_state(nr_writeback); \ + dec_zone_page_state(page, NR_WRITEBACK); \ ret; \ }) Index: linux-2.6.15-rc5-mm2/mm/page-writeback.c =================================================================== --- linux-2.6.15-rc5-mm2.orig/mm/page-writeback.c 2005-12-14 15:34:57.000000000 -0800 +++ linux-2.6.15-rc5-mm2/mm/page-writeback.c 2005-12-14 15:35:38.000000000 -0800 @@ -112,7 +112,7 @@ static void get_writeback_state(struct w wbs->nr_dirty = global_page_state(NR_DIRTY); wbs->nr_unstable = read_page_state(nr_unstable); wbs->nr_mapped = global_page_state(NR_MAPPED); - wbs->nr_writeback = read_page_state(nr_writeback); + wbs->nr_writeback = global_page_state(NR_WRITEBACK); } /* Index: linux-2.6.15-rc5-mm2/include/linux/mmzone.h =================================================================== --- linux-2.6.15-rc5-mm2.orig/include/linux/mmzone.h 2005-12-14 15:34:57.000000000 -0800 +++ linux-2.6.15-rc5-mm2/include/linux/mmzone.h 2005-12-14 15:35:38.000000000 -0800 @@ -44,8 +44,8 @@ struct zone_padding { #define ZONE_PADDING(name) #endif -enum zone_stat_item { NR_MAPPED, NR_PAGECACHE, NR_SLAB, NR_PAGETABLE, NR_DIRTY }; -#define NR_STAT_ITEMS 5 +enum zone_stat_item { NR_MAPPED, NR_PAGECACHE, NR_SLAB, NR_PAGETABLE, NR_DIRTY, NR_WRITEBACK }; +#define NR_STAT_ITEMS 6 struct per_cpu_pages { int count; /* number of pages in the list */ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/