mm: rename pgmoved variable in shrink_active_list()
Currently the pgmoved variable has two meanings. It causes harder reviewing. This patch separates it. Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Reviewed-by: Rik van Riel <riel@redhat.com> Reviewed-by: Minchan Kim <minchan.kim@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
parent
b259fbde0a
commit
44c241f166
16
mm/vmscan.c
16
mm/vmscan.c
|
@ -1244,7 +1244,7 @@ static void move_active_pages_to_lru(struct zone *zone,
|
|||
static void shrink_active_list(unsigned long nr_pages, struct zone *zone,
|
||||
struct scan_control *sc, int priority, int file)
|
||||
{
|
||||
unsigned long pgmoved;
|
||||
unsigned long nr_taken;
|
||||
unsigned long pgscanned;
|
||||
unsigned long vm_flags;
|
||||
LIST_HEAD(l_hold); /* The pages which were snipped off */
|
||||
|
@ -1252,10 +1252,11 @@ static void shrink_active_list(unsigned long nr_pages, struct zone *zone,
|
|||
LIST_HEAD(l_inactive);
|
||||
struct page *page;
|
||||
struct zone_reclaim_stat *reclaim_stat = get_reclaim_stat(zone, sc);
|
||||
unsigned long nr_rotated = 0;
|
||||
|
||||
lru_add_drain();
|
||||
spin_lock_irq(&zone->lru_lock);
|
||||
pgmoved = sc->isolate_pages(nr_pages, &l_hold, &pgscanned, sc->order,
|
||||
nr_taken = sc->isolate_pages(nr_pages, &l_hold, &pgscanned, sc->order,
|
||||
ISOLATE_ACTIVE, zone,
|
||||
sc->mem_cgroup, 1, file);
|
||||
/*
|
||||
|
@ -1265,16 +1266,15 @@ static void shrink_active_list(unsigned long nr_pages, struct zone *zone,
|
|||
if (scanning_global_lru(sc)) {
|
||||
zone->pages_scanned += pgscanned;
|
||||
}
|
||||
reclaim_stat->recent_scanned[!!file] += pgmoved;
|
||||
reclaim_stat->recent_scanned[!!file] += nr_taken;
|
||||
|
||||
__count_zone_vm_events(PGREFILL, zone, pgscanned);
|
||||
if (file)
|
||||
__mod_zone_page_state(zone, NR_ACTIVE_FILE, -pgmoved);
|
||||
__mod_zone_page_state(zone, NR_ACTIVE_FILE, -nr_taken);
|
||||
else
|
||||
__mod_zone_page_state(zone, NR_ACTIVE_ANON, -pgmoved);
|
||||
__mod_zone_page_state(zone, NR_ACTIVE_ANON, -nr_taken);
|
||||
spin_unlock_irq(&zone->lru_lock);
|
||||
|
||||
pgmoved = 0; /* count referenced (mapping) mapped pages */
|
||||
while (!list_empty(&l_hold)) {
|
||||
cond_resched();
|
||||
page = lru_to_page(&l_hold);
|
||||
|
@ -1288,7 +1288,7 @@ static void shrink_active_list(unsigned long nr_pages, struct zone *zone,
|
|||
/* page_referenced clears PageReferenced */
|
||||
if (page_mapping_inuse(page) &&
|
||||
page_referenced(page, 0, sc->mem_cgroup, &vm_flags)) {
|
||||
pgmoved++;
|
||||
nr_rotated++;
|
||||
/*
|
||||
* Identify referenced, file-backed active pages and
|
||||
* give them one more trip around the active list. So
|
||||
|
@ -1317,7 +1317,7 @@ static void shrink_active_list(unsigned long nr_pages, struct zone *zone,
|
|||
* helps balance scan pressure between file and anonymous pages in
|
||||
* get_scan_ratio.
|
||||
*/
|
||||
reclaim_stat->recent_rotated[!!file] += pgmoved;
|
||||
reclaim_stat->recent_rotated[!!file] += nr_rotated;
|
||||
|
||||
move_active_pages_to_lru(zone, &l_active,
|
||||
LRU_ACTIVE + file * LRU_FILE);
|
||||
|
|
Loading…
Reference in a new issue