summaryrefslogtreecommitdiffstats
path: root/mm
diff options
context:
space:
mode:
authorMel Gorman <mgorman@techsingularity.net>2016-05-20 02:14:24 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2016-05-20 04:12:14 +0200
commite5b31ac2ca2cd0cf6bf2fcbb708ed01466c89aaa (patch)
treee2cad286d5b732013c774e203f2d92c1763f22b4 /mm
parentmm, page_alloc: pull out side effects from free_pages_check (diff)
downloadlinux-e5b31ac2ca2cd0cf6bf2fcbb708ed01466c89aaa.tar.xz
linux-e5b31ac2ca2cd0cf6bf2fcbb708ed01466c89aaa.zip
mm, page_alloc: remove unnecessary variable from free_pcppages_bulk
The original count is never reused so it can be removed. Signed-off-by: Mel Gorman <mgorman@techsingularity.net> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/page_alloc.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index fea50b0cb405..822ce86fc883 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -857,7 +857,6 @@ 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;
@@ -867,7 +866,7 @@ 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;
@@ -887,7 +886,7 @@ 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 */
@@ -905,7 +904,7 @@ 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);
}