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mm/page_alloc.c: use list_for_each_entry in mark_free_pages()

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Use list_for_each_entry instead of list_for_each + list_entry to
simplify the code.

Signed-off-by: Geliang Tang <geliangtang@163.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Mel Gorman <mgorman@techsingularity.net>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Geliang Tang 2016-01-14 15:20:33 -08:00 committed by Linus Torvalds
parent a16601c545
commit 86760a2c6e
1 changed files with 5 additions and 5 deletions
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10
mm/page_alloc.c
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@ -1980,7 +1980,7 @@ void mark_free_pages(struct zone *zone)
unsigned long pfn, max_zone_pfn;
unsigned long flags;
unsigned int order, t;
struct list_head *curr;
struct page *page;
if (zone_is_empty(zone))
return;
@ -1990,17 +1990,17 @@ void mark_free_pages(struct zone *zone)
max_zone_pfn = zone_end_pfn(zone);
for (pfn = zone->zone_start_pfn; pfn < max_zone_pfn; pfn++)
if (pfn_valid(pfn)) {
struct page *page = pfn_to_page(pfn);
page = pfn_to_page(pfn);
if (!swsusp_page_is_forbidden(page))
swsusp_unset_page_free(page);
}
for_each_migratetype_order(order, t) {
list_for_each(curr, &zone->free_area[order].free_list[t]) {
list_for_each_entry(page,
&zone->free_area[order].free_list[t], lru) {
unsigned long i;
pfn = page_to_pfn(list_entry(curr, struct page, lru));
pfn = page_to_pfn(page);
for (i = 0; i < (1UL << order); i++)
swsusp_set_page_free(pfn_to_page(pfn + i));
}