When encounter pte is a swap entry, the current code handles two cases:
migration and normal swapentry, but we have a third case: hwpoison page.
This patch adds hwpoison page handle, consider hwpoison page incore as
same as migration.
Signed-off-by: Weijie Yang <weijie.yang@xxxxxxxxxxx>
---
mm/mincore.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/mm/mincore.c b/mm/mincore.c
index 725c809..3545f13 100644
--- a/mm/mincore.c
+++ b/mm/mincore.c
@@ -137,8 +137,8 @@ static void mincore_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
} else { /* pte is a swap entry */
swp_entry_t entry = pte_to_swp_entry(pte);
- if (is_migration_entry(entry)) {
- /* migration entries are always uptodate */
+ if (non_swap_entry(entry)) {
+ /* migration or hwpoison entries are always uptodate */
*vec = 1;
} else {
#ifdef CONFIG_SWAP
--
1.7.0.4
--
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