mm/page_alloc.c: remove unnecessary parameter in rmqueue_pcplist

Because rmqueue_pcplist() is only called when order is 0, we don't need to
use order as a parameter.

Link: http://lkml.kernel.org/r/1555591709-11744-1-git-send-email-laoar.shao@gmail.com
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Pankaj Gupta <pagupta@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index c45da9fe3ce178b845cd3de20071e52a225a4a40..cbda9aea0bf575a18c862ba21e9d9d474c08198c 100644 (file)
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -3170,9 +3170,8 @@ static struct page *__rmqueue_pcplist(struct zone *zone, int migratetype,
 
 /* Lock and remove page from the per-cpu list */
 static struct page *rmqueue_pcplist(struct zone *preferred_zone,
-                       struct zone *zone, unsigned int order,
-                       gfp_t gfp_flags, int migratetype,
-                       unsigned int alloc_flags)
+                       struct zone *zone, gfp_t gfp_flags,
+                       int migratetype, unsigned int alloc_flags)
 {
        struct per_cpu_pages *pcp;
        struct list_head *list;
@@ -3184,7 +3183,7 @@ static struct page *rmqueue_pcplist(struct zone *preferred_zone,
        list = &pcp->lists[migratetype];
        page = __rmqueue_pcplist(zone,  migratetype, alloc_flags, pcp, list);
        if (page) {
-               __count_zid_vm_events(PGALLOC, page_zonenum(page), 1 << order);
+               __count_zid_vm_events(PGALLOC, page_zonenum(page), 1);
                zone_statistics(preferred_zone, zone);
        }
        local_irq_restore(flags);
@@ -3204,8 +3203,8 @@ struct page *rmqueue(struct zone *preferred_zone,
        struct page *page;
 
        if (likely(order == 0)) {
-               page = rmqueue_pcplist(preferred_zone, zone, order,
-                               gfp_flags, migratetype, alloc_flags);
+               page = rmqueue_pcplist(preferred_zone, zone, gfp_flags,
+                                       migratetype, alloc_flags);
                goto out;
        }