From: chenqiwu <chenqiwu@xxxxxxxxxx> As discussed in patch[1], special mapping ptes such as device mapping ptes don't need to operate on their corresponding pages, so the redundant pte_devmap case can be removed. [1] https://patchwork.kernel.org/patch/11494691/ Signed-off-by: chenqiwu <chenqiwu@xxxxxxxxxx> --- mm/memory.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/mm/memory.c b/mm/memory.c index f703fe8..2143827 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -802,8 +802,6 @@ struct page *vm_normal_page_pmd(struct vm_area_struct *vma, unsigned long addr, get_page(page); page_dup_rmap(page, false); rss[mm_counter(page)]++; - } else if (pte_devmap(pte)) { - page = pte_page(pte); } out_set_pte: -- 1.9.1
