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[PATCH] zoned vm counters: conversion of nr_unstable to per zone counter

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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>
This commit is contained in:
Christoph Lameter
2006-06-30 01:55:40 -07:00
committed by Linus Torvalds
parent ce866b34ae
commit fd39fc8561
9 changed files with 11 additions and 46 deletions
Download Patch File Download Diff File Expand all files Collapse all files
mm/page-writeback.c
+1 -1
View File
@@ -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);
mm/page_alloc.c
+1 -3
View File
@@ -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),
mm/vmstat.c
+1 -24
View File
@@ -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",