From: Christoph Lameter <clameter@sgi.com>
To: linux-kernel@vger.kernel.org
Cc: Christoph Lameter <clameter@sgi.com>
Subject: [RFC3 11/14] Convert nr_writeback
Date: Wed, 14 Dec 2005 16:32:48 -0800 (PST) [thread overview]
Message-ID: <20051215003248.31788.8200.sendpatchset@schroedinger.engr.sgi.com> (raw)
In-Reply-To: <20051215003151.31788.8755.sendpatchset@schroedinger.engr.sgi.com>
Per zone page writeback counts
Signed-off-by: Christoph Lameter <clameter@sgi.com>
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 */
next prev parent reply other threads:[~2005-12-15 0:33 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-12-15 0:31 [RFC3 00/14] Zoned VM stats Christoph Lameter
2005-12-15 0:31 ` [RFC3 01/14] Add some consts for inlines in mm.h Christoph Lameter
2005-12-15 0:32 ` [RFC3 02/14] Basic counter functionality Christoph Lameter
2005-12-15 0:32 ` [RFC3 03/14] Convert nr_mapped Christoph Lameter
2005-12-15 0:32 ` [RFC3 04/14] Convert nr_pagecache Christoph Lameter
2005-12-15 0:32 ` [RFC3 05/14] Resurrect scan_control.may_swap Christoph Lameter
2005-12-15 0:32 ` [RFC3 06/14] Zone Reclaim Christoph Lameter
2005-12-15 0:32 ` [RFC3 07/14] Expanded node and zone statistics Christoph Lameter
2005-12-15 0:32 ` [RFC3 08/14] Convert nr_slab Christoph Lameter
2005-12-15 0:32 ` [RFC3 09/14] Convert nr_page_table Christoph Lameter
2005-12-15 0:32 ` [RFC3 10/14] Convert nr_dirty Christoph Lameter
2005-12-15 0:32 ` Christoph Lameter [this message]
2005-12-15 0:32 ` [RFC3 12/14] Convert nr_unstable Christoph Lameter
2005-12-15 0:33 ` [RFC3 13/14] Remove get_page_state functions Christoph Lameter
2005-12-15 0:33 ` [RFC3 14/14] Remove wbs Christoph Lameter
-- strict thread matches above, loose matches on Subject: below --
2005-12-15 0:14 [RFC3 00/14] Zoned VM stats Christoph Lameter
2005-12-15 0:15 ` [RFC3 11/14] Convert nr_writeback Christoph Lameter
2005-12-15 0:15 ` Christoph Lameter
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20051215003248.31788.8200.sendpatchset@schroedinger.engr.sgi.com \
--to=clameter@sgi.com \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.