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Subject[PATCH v2 2/5] mm/huge_memory.c: use page->deferred_list
Date
Now that we can represent the location of ->deferred_list instead of
->mapping + ->index, make use of it to improve readability.

Reviewed-by: Yang Shi <shy828301@gmail.com>
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
---
mm/huge_memory.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 63ed6b25deaa..76ca1eb2a223 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -2868,7 +2868,7 @@ static unsigned long deferred_split_scan(struct shrinker *shrink,
spin_lock_irqsave(&ds_queue->split_queue_lock, flags);
/* Take pin on all head pages to avoid freeing them under us */
list_for_each_safe(pos, next, &ds_queue->split_queue) {
- page = list_entry((void *)pos, struct page, mapping);
+ page = list_entry((void *)pos, struct page, deferred_list);
page = compound_head(page);
if (get_page_unless_zero(page)) {
list_move(page_deferred_list(page), &list);
@@ -2883,7 +2883,7 @@ static unsigned long deferred_split_scan(struct shrinker *shrink,
spin_unlock_irqrestore(&ds_queue->split_queue_lock, flags);

list_for_each_safe(pos, next, &list) {
- page = list_entry((void *)pos, struct page, mapping);
+ page = list_entry((void *)pos, struct page, deferred_list);
if (!trylock_page(page))
goto next;
/* split_huge_page() removes page from list on success */
--
2.23.0
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