From: qiwuchen55@gmail.com
To: akpm@linux-foundation.org, willy@infradead.org
Cc: linux-mm@kvack.org, chenqiwu <chenqiwu@xiaomi.com>
Subject: [PATCH v2] mm/memory: remove unnecessary pte_devmap case in copy_one_pte()
Date: Mon, 20 Apr 2020 10:28:05 +0800 [thread overview]
Message-ID: <1587349685-31712-1-git-send-email-qiwuchen55@gmail.com> (raw)
From: chenqiwu <chenqiwu@xiaomi.com>
Since commit 25b2995a35b6 ("mm: remove MEMORY_DEVICE_PUBLIC support"),
the assignment to 'page' for pte_devmap case has been unnecessary.
Let's remove it.
Signed-off-by: chenqiwu <chenqiwu@xiaomi.com>
---
Change in v2:
- According to Matthew's suggestion, update commit title and message.
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
next reply other threads:[~2020-04-20 2:28 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-20 2:28 qiwuchen55 [this message]
2020-04-20 15:08 ` Michal Hocko
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