[PATCH 24/28] mm, page_alloc: Remove unnecessary variable from free_pcppages_bulk

[Mel Gorman]

The original count is never reused so it can be removed.

Signed-off-by: Mel Gorman <mgor...@techsingularity.net>
---
 mm/page_alloc.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 3a60579342a5..bdcd4087553e 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -855,7 +855,6 @@ static void free_pcppages_bulk(struct zone *zone, int count,
 {
        int migratetype = 0;
        int batch_free = 0;
-       int to_free = count;
        unsigned long nr_scanned;
        bool isolated_pageblocks = has_isolate_pageblock(zone);
 
@@ -864,7 +863,7 @@ static void free_pcppages_bulk(struct zone *zone, int count,
        if (nr_scanned)
                __mod_zone_page_state(zone, NR_PAGES_SCANNED, -nr_scanned);
 
-       while (to_free) {
+       while (count) {
                struct page *page;
                struct list_head *list;
 
@@ -884,7 +883,7 @@ static void free_pcppages_bulk(struct zone *zone, int count,
 
                /* This is the only non-empty list. Free them all. */
                if (batch_free == MIGRATE_PCPTYPES)
-                       batch_free = to_free;
+                       batch_free = count;
 
                do {
                        int mt; /* migratetype of the to-be-freed page */
@@ -902,7 +901,7 @@ static void free_pcppages_bulk(struct zone *zone, int count,
 
                        __free_one_page(page, page_to_pfn(page), zone, 0, mt);
                        trace_mm_page_pcpu_drain(page, 0, mt);
-               } while (--to_free && --batch_free && !list_empty(list));
+               } while (--count && --batch_free && !list_empty(list));
        }
        spin_unlock(&zone->lock);
 }
-- 
2.6.4