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Commit e5b31ac2 authored by Mel Gorman's avatar Mel Gorman Committed by Linus Torvalds
Browse files

mm, page_alloc: remove unnecessary variable from free_pcppages_bulk 



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

Signed-off-by: default avatarMel Gorman <mgorman@techsingularity.net>
Acked-by: default avatarVlastimil Babka <vbabka@suse.cz>
Cc: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent da838d4f

mm/page_alloc.c

+3 −4
Original line number Original line Diff line number Diff line
@@ -857,7 +857,6 @@ static void free_pcppages_bulk(struct zone *zone, int count, 
{

{

	int migratetype = 0;

	int migratetype = 0;

	int batch_free = 0;

	int batch_free = 0;

	int to_free = count;

	unsigned long nr_scanned;

	unsigned long nr_scanned;

	bool isolated_pageblocks;

	bool isolated_pageblocks;
@@ -867,7 +866,7 @@ static void free_pcppages_bulk(struct zone *zone, int count, 
	if (nr_scanned)

	if (nr_scanned)

		__mod_zone_page_state(zone, NR_PAGES_SCANNED, -nr_scanned);

		__mod_zone_page_state(zone, NR_PAGES_SCANNED, -nr_scanned);





	while (to_free) {

	while (count) {

		struct page *page;

		struct page *page;

		struct list_head *list;

		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. */

		/* This is the only non-empty list. Free them all. */

		if (batch_free == MIGRATE_PCPTYPES)

		if (batch_free == MIGRATE_PCPTYPES)

			batch_free = to_free;

			batch_free = count;





		do {

		do {

			int mt;	/* migratetype of the to-be-freed page */

			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);

			__free_one_page(page, page_to_pfn(page), zone, 0, mt);

			trace_mm_page_pcpu_drain(page, 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);

	spin_unlock(&zone->lock);

}

}