From: Miaohe Lin <linmiaohe@huawei.com>
To: <akpm@linux-foundation.org>, <mike.kravetz@oracle.com>
Cc: <linux-mm@kvack.org>, <linux-kernel@vger.kernel.org>,
<linmiaohe@huawei.com>
Subject: [PATCH] mm/hugetlb: Fix potential missing huge page size info
Date: Thu, 7 Jan 2021 07:34:49 -0500 [thread overview]
Message-ID: <20210107123449.38481-1-linmiaohe@huawei.com> (raw)
The huge page size is encoded for VM_FAULT_HWPOISON errors only. So if we
return VM_FAULT_HWPOISON, huge page size would just be ignored.
Fixes: aa50d3a7aa81 ("Encode huge page size for VM_FAULT_HWPOISON errors")
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: <stable@vger.kernel.org>
---
mm/hugetlb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 3ada2e78316c..e249bffa0e75 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -4371,7 +4371,7 @@ static vm_fault_t hugetlb_no_page(struct mm_struct *mm,
* So we need to block hugepage fault by PG_hwpoison bit check.
*/
if (unlikely(PageHWPoison(page))) {
- ret = VM_FAULT_HWPOISON |
+ ret = VM_FAULT_HWPOISON_LARGE |
VM_FAULT_SET_HINDEX(hstate_index(h));
goto backout_unlocked;
}
--
2.19.1
next reply other threads:[~2021-01-07 12:35 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-07 12:34 Miaohe Lin [this message]
2021-01-07 19:08 ` Mike Kravetz
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