From: chenqiwu <chenqiwu@xxxxxxxxxx>
Subject: mm/memory: remove unnecessary pte_devmap case in copy_one_pte()
Since commit 25b2995a35b6 ("mm: remove MEMORY_DEVICE_PUBLIC support"), the
assignment to 'page' for pte_devmap case has been unnecessary. Let's
remove it.
[willy@xxxxxxxxxxxxx: changelog]
Link: http://lkml.kernel.org/r/1587349685-31712-1-git-send-email-qiwuchen55@xxxxxxxxx
Signed-off-by: chenqiwu <chenqiwu@xxxxxxxxxx>
Acked-by: Michal Hocko <mhocko@xxxxxxxx>
Reviewed-by: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memory.c | 2 --
1 file changed, 2 deletions(-)
--- a/mm/memory.c~mm-memory-remove-unnecessary-pte_devmap-case-in-copy_one_pte
+++ a/mm/memory.c
@@ -802,8 +802,6 @@ copy_one_pte(struct mm_struct *dst_mm, s
get_page(page);
page_dup_rmap(page, false);
rss[mm_counter(page)]++;
- } else if (pte_devmap(pte)) {
- page = pte_page(pte);
}
out_set_pte:
_
