update_isolated_counts() no longer required, because lumpy-reclaim was removed.
Insanity is over, now here only one kind of inactive pages.
Signed-off-by: Konstantin Khlebnikov <khlebnikov@xxxxxxxxxx>
---
mm/vmscan.c | 60 ++++++-----------------------------------------------------
1 file changed, 6 insertions(+), 54 deletions(-)
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 44d5821..6f617c4 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1205,52 +1205,6 @@ putback_inactive_pages(struct mem_cgroup_zone *mz,
list_splice(&pages_to_free, page_list);
}
-static noinline_for_stack void
-update_isolated_counts(struct mem_cgroup_zone *mz,
- struct list_head *page_list,
- unsigned long *nr_anon,
- unsigned long *nr_file)
-{
- struct zone *zone = mz->zone;
- unsigned int count[NR_LRU_LISTS] = { 0, };
- unsigned long nr_active = 0;
- struct page *page;
- int lru;
-
- /*
- * Count pages and clear active flags
- */
- list_for_each_entry(page, page_list, lru) {
- int numpages = hpage_nr_pages(page);
- lru = page_lru_base_type(page);
- if (PageActive(page)) {
- lru += LRU_ACTIVE;
- ClearPageActive(page);
- nr_active += numpages;
- }
- count[lru] += numpages;
- }
-
- preempt_disable();
- __count_vm_events(PGDEACTIVATE, nr_active);
-
- __mod_zone_page_state(zone, NR_ACTIVE_FILE,
- -count[LRU_ACTIVE_FILE]);
- __mod_zone_page_state(zone, NR_INACTIVE_FILE,
- -count[LRU_INACTIVE_FILE]);
- __mod_zone_page_state(zone, NR_ACTIVE_ANON,
- -count[LRU_ACTIVE_ANON]);
- __mod_zone_page_state(zone, NR_INACTIVE_ANON,
- -count[LRU_INACTIVE_ANON]);
-
- *nr_anon = count[LRU_ACTIVE_ANON] + count[LRU_INACTIVE_ANON];
- *nr_file = count[LRU_ACTIVE_FILE] + count[LRU_INACTIVE_FILE];
-
- __mod_zone_page_state(zone, NR_ISOLATED_ANON, *nr_anon);
- __mod_zone_page_state(zone, NR_ISOLATED_FILE, *nr_file);
- preempt_enable();
-}
-
/*
* shrink_inactive_list() is a helper for shrink_zone(). It returns the number
* of reclaimed pages
@@ -1263,8 +1217,6 @@ shrink_inactive_list(unsigned long nr_to_scan, struct mem_cgroup_zone *mz,
unsigned long nr_scanned;
unsigned long nr_reclaimed = 0;
unsigned long nr_taken;
- unsigned long nr_anon;
- unsigned long nr_file;
unsigned long nr_dirty = 0;
unsigned long nr_writeback = 0;
isolate_mode_t isolate_mode = 0;
@@ -1292,6 +1244,10 @@ shrink_inactive_list(unsigned long nr_to_scan, struct mem_cgroup_zone *mz,
nr_taken = isolate_lru_pages(nr_to_scan, lruvec, &page_list,
&nr_scanned, sc, isolate_mode, lru);
+
+ __mod_zone_page_state(zone, NR_LRU_BASE + lru, -nr_taken);
+ __mod_zone_page_state(zone, NR_ISOLATED_ANON + file, nr_taken);
+
if (global_reclaim(sc)) {
zone->pages_scanned += nr_scanned;
if (current_is_kswapd())
@@ -1306,15 +1262,12 @@ shrink_inactive_list(unsigned long nr_to_scan, struct mem_cgroup_zone *mz,
if (nr_taken == 0)
return 0;
- update_isolated_counts(mz, &page_list, &nr_anon, &nr_file);
-
nr_reclaimed = shrink_page_list(&page_list, zone, sc,
&nr_dirty, &nr_writeback);
spin_lock_irq(&zone->lru_lock);
- reclaim_stat->recent_scanned[0] += nr_anon;
- reclaim_stat->recent_scanned[1] += nr_file;
+ reclaim_stat->recent_scanned[file] += nr_taken;
if (current_is_kswapd())
__count_vm_events(KSWAPD_STEAL, nr_reclaimed);
@@ -1322,8 +1275,7 @@ shrink_inactive_list(unsigned long nr_to_scan, struct mem_cgroup_zone *mz,
putback_inactive_pages(mz, &page_list);
- __mod_zone_page_state(zone, NR_ISOLATED_ANON, -nr_anon);
- __mod_zone_page_state(zone, NR_ISOLATED_FILE, -nr_file);
+ __mod_zone_page_state(zone, NR_ISOLATED_ANON + file, -nr_taken);
spin_unlock_irq(&zone->lru_lock);
--
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