[RFC PATCH 1/2] mm/gup: add missing pXdp_get() conversions

[Alexander Gordeev <agordeev@linux.ibm.com>]

PMD and PUD entries revalidation has the same semantics as
PTE entry revalidation. Convert the remaining direct entry
dereferences to the corresponding pXdp_get() accessors.

Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
---
 mm/gup.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/mm/gup.c b/mm/gup.c
index 8e7dc2c6ee73..d149a4b0df71 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -2865,7 +2865,7 @@ static int gup_fast_pte_range(pmd_t pmd, pmd_t *pmdp, unsigned long addr,
 		if (!folio)
 			goto pte_unmap;
 
-		if (unlikely(pmd_val(pmd) != pmd_val(*pmdp)) ||
+		if (unlikely(pmd_val(pmd) != pmd_val(pmdp_get(pmdp))) ||
 		    unlikely(pte_val(pte) != pte_val(ptep_get(ptep)))) {
 			gup_put_folio(folio, 1, flags);
 			goto pte_unmap;
@@ -2942,7 +2942,7 @@ static int gup_fast_pmd_leaf(pmd_t orig, pmd_t *pmdp, unsigned long addr,
 	if (!folio)
 		return 0;
 
-	if (unlikely(pmd_val(orig) != pmd_val(*pmdp))) {
+	if (unlikely(pmd_val(orig) != pmd_val(pmdp_get(pmdp)))) {
 		gup_put_folio(folio, refs, flags);
 		return 0;
 	}
@@ -2985,7 +2985,7 @@ static int gup_fast_pud_leaf(pud_t orig, pud_t *pudp, unsigned long addr,
 	if (!folio)
 		return 0;
 
-	if (unlikely(pud_val(orig) != pud_val(*pudp))) {
+	if (unlikely(pud_val(orig) != pud_val(pudp_get(pudp)))) {
 		gup_put_folio(folio, refs, flags);
 		return 0;
 	}
-- 
2.51.0