Normal THP cannot be PUD-mapped (besides devmap), but hugetlb can,
so enable hmm_vma_walk_pud to handle PUD-mapped hugetlb vmas.
Signed-off-by: Oscar Salvador <osalvador@xxxxxxx>
---
mm/hmm.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/mm/hmm.c b/mm/hmm.c
index fbee08973544..2b752f703b6d 100644
--- a/mm/hmm.c
+++ b/mm/hmm.c
@@ -396,8 +396,7 @@ static int hmm_vma_walk_pmd(pmd_t *pmdp,
return 0;
}
-#if defined(CONFIG_ARCH_HAS_PTE_DEVMAP) && \
- defined(CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD)
+#if (defined(CONFIG_ARCH_HAS_PTE_DEVMAP) || defined (CONFIG_PGTABLE_HAS_HUGE_LEAVES))
static inline unsigned long pud_to_hmm_pfn_flags(struct hmm_range *range,
pud_t pud)
{
@@ -429,7 +428,7 @@ static int hmm_vma_walk_pud(pud_t *pudp, unsigned long start, unsigned long end,
return hmm_vma_walk_hole(start, end, -1, walk);
}
- if (pud_leaf(pud) && pud_devmap(pud)) {
+ if (pud_leaf(pud)) {
unsigned long i, npages, pfn;
unsigned int required_fault;
unsigned long *hmm_pfns;
--
2.26.2
