[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Date: Sun, 30 Jan 2022 01:30:42 +0000
From: "Matthew Wilcox (Oracle)" <willy@...radead.org>
To: Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
linux-kernel@...r.kernel.org,
Naoya Horiguchi <naoya.horiguchi@....com>
Cc: "Matthew Wilcox (Oracle)" <willy@...radead.org>
Subject: [PATCH] mm/hwpoison: Check the subpage, not the head page
Hardware poison is tracked on a per-page basis, not on the head page.
Signed-off-by: Matthew Wilcox (Oracle) <willy@...radead.org>
---
mm/rmap.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mm/rmap.c b/mm/rmap.c
index 6a1e8c7f6213..09b08888120e 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -1553,7 +1553,7 @@ static bool try_to_unmap_one(struct page *page, struct vm_area_struct *vma,
/* Update high watermark before we lower rss */
update_hiwater_rss(mm);
- if (PageHWPoison(page) && !(flags & TTU_IGNORE_HWPOISON)) {
+ if (PageHWPoison(subpage) && !(flags & TTU_IGNORE_HWPOISON)) {
pteval = swp_entry_to_pte(make_hwpoison_entry(subpage));
if (PageHuge(page)) {
hugetlb_count_sub(compound_nr(page), mm);
@@ -1873,7 +1873,7 @@ static bool try_to_migrate_one(struct page *page, struct vm_area_struct *vma,
* memory are supported.
*/
subpage = page;
- } else if (PageHWPoison(page)) {
+ } else if (PageHWPoison(subpage)) {
pteval = swp_entry_to_pte(make_hwpoison_entry(subpage));
if (PageHuge(page)) {
hugetlb_count_sub(compound_nr(page), mm);
--
2.34.1
Powered by blists - more mailing lists