From: Ira Weiny <[email protected]> RFC I have no idea if this is correct or not. But looking at release_pages() I see a call to both __ClearPageActive() and __ClearPageWaiters() while in __page_cache_release() I do not.
Is this a bug which needs to be fixed? Did I miss clearing active somewhere else in the call chain of put_page? This was found via code inspection while determining if release_pages() and the new put_user_pages() could be interchangeable. Signed-off-by: Ira Weiny <[email protected]> --- mm/swap.c | 1 + 1 file changed, 1 insertion(+) diff --git a/mm/swap.c b/mm/swap.c index 3a75722e68a9..9d0432baddb0 100644 --- a/mm/swap.c +++ b/mm/swap.c @@ -69,6 +69,7 @@ static void __page_cache_release(struct page *page) del_page_from_lru_list(page, lruvec, page_off_lru(page)); spin_unlock_irqrestore(&pgdat->lru_lock, flags); } + __ClearPageActive(page); __ClearPageWaiters(page); mem_cgroup_uncharge(page); } -- 2.20.1
