mm/gup.c: use is_vm_hugetlb_page() to check whether to follow huge

No functional change, just leverage the helper function to improve readability as others. Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Wei Yang <[email protected]> Acked-by: Vlastimil Babka <[email protected]> Acked-by: David Rientjes <[email protected]> Reviewed-by: Ralph Campbell <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
josf · Jan 31, 2020 · be9d304 · be9d304
1 parent 1549452
commit be9d304
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/mm/gup.c b/mm/gup.c
@@ -323,7 +323,7 @@ static struct page *follow_pmd_mask(struct vm_area_struct *vma,
 	pmdval = READ_ONCE(*pmd);
 	if (pmd_none(pmdval))
 		return no_page_table(vma, flags);
-	if (pmd_huge(pmdval) && vma->vm_flags & VM_HUGETLB) {
+	if (pmd_huge(pmdval) && is_vm_hugetlb_page(vma)) {
 		page = follow_huge_pmd(mm, address, pmd, flags);
 		if (page)
 			return page;
@@ -433,7 +433,7 @@ static struct page *follow_pud_mask(struct vm_area_struct *vma,
 	pud = pud_offset(p4dp, address);
 	if (pud_none(*pud))
 		return no_page_table(vma, flags);
-	if (pud_huge(*pud) && vma->vm_flags & VM_HUGETLB) {
+	if (pud_huge(*pud) && is_vm_hugetlb_page(vma)) {
 		page = follow_huge_pud(mm, address, pud, flags);
 		if (page)
 			return page;