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Subject[PATCH 4/5] vmscan: get rid of unnecessary nr_dirty ret variable
Date
Now anyone don't use nr_dirty so remove it.

Cc: Rik van Riel <riel@redhat.com>
Cc: Mel Gorman <mgorman@suse.de>
Signed-off-by: Minchan Kim <minchan@kernel.org>
---
mm/vmscan.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/mm/vmscan.c b/mm/vmscan.c
index 0e2550c..1a66680 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -674,7 +674,6 @@ static enum page_references page_check_references(struct page *page,
static unsigned long shrink_page_list(struct list_head *page_list,
struct zone *zone,
struct scan_control *sc,
- unsigned long *ret_nr_dirty,
unsigned long *ret_nr_writeback)
{
LIST_HEAD(ret_pages);
@@ -955,7 +954,6 @@ keep:
list_splice(&ret_pages, page_list);
count_vm_events(PGACTIVATE, pgactivate);
mem_cgroup_uncharge_end();
- *ret_nr_dirty += nr_dirty;
*ret_nr_writeback += nr_writeback;
return nr_reclaimed;
}
@@ -1236,7 +1234,6 @@ shrink_inactive_list(unsigned long nr_to_scan, struct lruvec *lruvec,
unsigned long nr_scanned;
unsigned long nr_reclaimed = 0;
unsigned long nr_taken;
- unsigned long nr_dirty = 0;
unsigned long nr_writeback = 0;
isolate_mode_t isolate_mode = 0;
int file = is_file_lru(lru);
@@ -1278,8 +1275,7 @@ shrink_inactive_list(unsigned long nr_to_scan, struct lruvec *lruvec,
if (nr_taken == 0)
return 0;

- nr_reclaimed = shrink_page_list(&page_list, zone, sc,
- &nr_dirty, &nr_writeback);
+ nr_reclaimed = shrink_page_list(&page_list, zone, sc, &nr_writeback);

spin_lock_irq(&zone->lru_lock);

--
1.7.9.5


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