diff mbox series

[4.4,04/62] mm, page_alloc: remove unnecessary variable from free_pcppages_bulk

Message ID 20200911122502.615839890@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg Kroah-Hartman Sept. 11, 2020, 12:45 p.m. UTC 
From: Mel Gorman <mgorman@techsingularity.net>

commit e5b31ac2ca2cd0cf6bf2fcbb708ed01466c89aaa upstream.

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>
[dwagner: update context]
Signed-off-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 mm/page_alloc.c |    7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)
diff mbox series

Patch

--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -835,7 +835,6 @@  static void free_pcppages_bulk(struct zo
 {
 	int migratetype = 0;
 	int batch_free = 0;
-	int to_free = count;
 	unsigned long nr_scanned;
 
 	spin_lock(&zone->lock);
@@ -848,7 +847,7 @@  static void free_pcppages_bulk(struct zo
 	 * below while (list_empty(list)) loop.
 	 */
 	count = min(pcp->count, count);
-	while (to_free) {
+	while (count) {
 		struct page *page;
 		struct list_head *list;
 
@@ -868,7 +867,7 @@  static void free_pcppages_bulk(struct zo
 
 		/* 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 */
@@ -886,7 +885,7 @@  static void free_pcppages_bulk(struct zo
 
 			__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);
 }