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mm/vmscan: push lruvec pointer into isolate_lru_pages()

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Move the mem_cgroup_zone_lruvec() call from isolate_lru_pages() into
shrink_[in]active_list().  Further patches push it to shrink_zone() step
by step.

Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Konstantin Khlebnikov 2012-05-29 15:06:58 -07:00 committed by Linus Torvalds
parent 7f5e86c2cc
commit 5dc35979e4
1 changed files with 8 additions and 8 deletions
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16
mm/vmscan.c
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@ -1027,7 +1027,7 @@ int __isolate_lru_page(struct page *page, isolate_mode_t mode)
* Appropriate locks must be held before calling this function.
*
* @nr_to_scan: The number of pages to look through on the list.
* @mz: The mem_cgroup_zone to pull pages from.
* @lruvec: The LRU vector to pull pages from.
* @dst: The temp list to put pages on to.
* @nr_scanned: The number of pages that were scanned.
* @sc: The scan_control struct for this reclaim session
@ -1037,17 +1037,15 @@ int __isolate_lru_page(struct page *page, isolate_mode_t mode)
* returns how many pages were moved onto *@dst.
*/
static unsigned long isolate_lru_pages(unsigned long nr_to_scan,
struct mem_cgroup_zone *mz, struct list_head *dst,
struct lruvec *lruvec, struct list_head *dst,
unsigned long *nr_scanned, struct scan_control *sc,
isolate_mode_t mode, enum lru_list lru)
{
struct lruvec *lruvec;
struct list_head *src;
unsigned long nr_taken = 0;
unsigned long scan;
int file = is_file_lru(lru);
lruvec = mem_cgroup_zone_lruvec(mz->zone, mz->mem_cgroup);
src = &lruvec->lists[lru];
for (scan = 0; scan < nr_to_scan && !list_empty(src); scan++) {
@ -1274,6 +1272,7 @@ shrink_inactive_list(unsigned long nr_to_scan, struct mem_cgroup_zone *mz,
int file = is_file_lru(lru);
struct zone *zone = mz->zone;
struct zone_reclaim_stat *reclaim_stat = get_reclaim_stat(mz);
struct lruvec *lruvec = mem_cgroup_zone_lruvec(zone, mz->mem_cgroup);
while (unlikely(too_many_isolated(zone, file, sc))) {
congestion_wait(BLK_RW_ASYNC, HZ/10);
@ -1292,8 +1291,8 @@ shrink_inactive_list(unsigned long nr_to_scan, struct mem_cgroup_zone *mz,
spin_lock_irq(&zone->lru_lock);
nr_taken = isolate_lru_pages(nr_to_scan, mz, &page_list, &nr_scanned,
sc, isolate_mode, lru);
nr_taken = isolate_lru_pages(nr_to_scan, lruvec, &page_list,
&nr_scanned, sc, isolate_mode, lru);
if (global_reclaim(sc)) {
zone->pages_scanned += nr_scanned;
if (current_is_kswapd())
@ -1444,6 +1443,7 @@ static void shrink_active_list(unsigned long nr_to_scan,
isolate_mode_t isolate_mode = 0;
int file = is_file_lru(lru);
struct zone *zone = mz->zone;
struct lruvec *lruvec = mem_cgroup_zone_lruvec(zone, mz->mem_cgroup);
lru_add_drain();
@ -1454,8 +1454,8 @@ static void shrink_active_list(unsigned long nr_to_scan,
spin_lock_irq(&zone->lru_lock);
nr_taken = isolate_lru_pages(nr_to_scan, mz, &l_hold, &nr_scanned, sc,
isolate_mode, lru);
nr_taken = isolate_lru_pages(nr_to_scan, lruvec, &l_hold,
&nr_scanned, sc, isolate_mode, lru);
if (global_reclaim(sc))
zone->pages_scanned += nr_scanned;