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authorChristoph Lameter <clameter@sgi.com>2006-06-30 01:55:40 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-30 11:25:36 -0700
commitfd39fc8561be33065306bdac0e30414e1e8ac8e1 (patch)
treeae0740716eed3f850a8f7232c61caebe360bb5ae /mm
parentce866b34ae1b7f1ce60234cf65855886ac7e7d30 (diff)
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[PATCH] zoned vm counters: conversion of nr_unstable to per zone counter
Conversion of nr_unstable to a per zone counter We need to do some special modifications to the nfs code since there are multiple cases of disposition and we need to have a page ref for proper accounting. This converts the last critical page state of the VM and therefore we need to remove several functions that were depending on GET_PAGE_STATE_LAST in order to make the kernel compile again. We are only left with event type counters in page state. [akpm@osdl.org: bugfixes] Signed-off-by: Christoph Lameter <clameter@sgi.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/page-writeback.c2
-rw-r--r--mm/page_alloc.c4
-rw-r--r--mm/vmstat.c25
3 files changed, 3 insertions, 28 deletions
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 3cfdff4..de9836f 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -110,7 +110,7 @@ struct writeback_state
static void get_writeback_state(struct writeback_state *wbs)
{
wbs->nr_dirty = global_page_state(NR_FILE_DIRTY);
- wbs->nr_unstable = read_page_state(nr_unstable);
+ wbs->nr_unstable = global_page_state(NR_UNSTABLE_NFS);
wbs->nr_mapped = global_page_state(NR_FILE_MAPPED) +
global_page_state(NR_ANON_PAGES);
wbs->nr_writeback = global_page_state(NR_WRITEBACK);
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index a12e894..6aa2c31 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1271,7 +1271,6 @@ void si_meminfo_node(struct sysinfo *val, int nid)
*/
void show_free_areas(void)
{
- struct page_state ps;
int cpu, temperature;
unsigned long active;
unsigned long inactive;
@@ -1303,7 +1302,6 @@ void show_free_areas(void)
}
}
- get_page_state(&ps);
get_zone_counts(&active, &inactive, &free);
printk("Free pages: %11ukB (%ukB HighMem)\n",
@@ -1316,7 +1314,7 @@ void show_free_areas(void)
inactive,
global_page_state(NR_FILE_DIRTY),
global_page_state(NR_WRITEBACK),
- ps.nr_unstable,
+ global_page_state(NR_UNSTABLE_NFS),
nr_free_pages(),
global_page_state(NR_SLAB),
global_page_state(NR_FILE_MAPPED),
diff --git a/mm/vmstat.c b/mm/vmstat.c
index e84c7e5..9dc270a 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -45,28 +45,6 @@ static void __get_page_state(struct page_state *ret, int nr, cpumask_t *cpumask)
}
}
-void get_page_state_node(struct page_state *ret, int node)
-{
- int nr;
- cpumask_t mask = node_to_cpumask(node);
-
- nr = offsetof(struct page_state, GET_PAGE_STATE_LAST);
- nr /= sizeof(unsigned long);
-
- __get_page_state(ret, nr+1, &mask);
-}
-
-void get_page_state(struct page_state *ret)
-{
- int nr;
- cpumask_t mask = CPU_MASK_ALL;
-
- nr = offsetof(struct page_state, GET_PAGE_STATE_LAST);
- nr /= sizeof(unsigned long);
-
- __get_page_state(ret, nr + 1, &mask);
-}
-
void get_full_page_state(struct page_state *ret)
{
cpumask_t mask = CPU_MASK_ALL;
@@ -402,10 +380,9 @@ static char *vmstat_text[] = {
"nr_page_table_pages",
"nr_dirty",
"nr_writeback",
-
- /* Page state */
"nr_unstable",
+ /* Event counters */
"pgpgin",
"pgpgout",
"pswpin",