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-rw-r--r--mm/memory-failure.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 54879c339024..3e6449f2102a 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -306,6 +306,7 @@ static unsigned long dev_pagemap_mapping_shift(struct page *page,
struct vm_area_struct *vma)
{
unsigned long address = vma_address(page, vma);
+ unsigned long ret = 0;
pgd_t *pgd;
p4d_t *p4d;
pud_t *pud;
@@ -329,11 +330,10 @@ static unsigned long dev_pagemap_mapping_shift(struct page *page,
if (pmd_devmap(*pmd))
return PMD_SHIFT;
pte = pte_offset_map(pmd, address);
- if (!pte_present(*pte))
- return 0;
- if (pte_devmap(*pte))
- return PAGE_SHIFT;
- return 0;
+ if (pte_present(*pte) && pte_devmap(*pte))
+ ret = PAGE_SHIFT;
+ pte_unmap(pte);
+ return ret;
}
/*
@@ -1126,7 +1126,7 @@ static int page_action(struct page_state *ps, struct page *p,
*/
static inline bool HWPoisonHandlable(struct page *page)
{
- return PageLRU(page) || __PageMovable(page);
+ return PageLRU(page) || __PageMovable(page) || is_free_buddy_page(page);
}
static int __get_hwpoison_page(struct page *page)