mm/gup.c: use is_vm_hugetlb_page() to check whether to follow huge (be9d3045) · Commits · 戴 / test

No functional change, just leverage the helper function to improve readability as others. Link: http://lkml.kernel.org/r/20200113070322.26627-1-richardw.yang@linux.intel.com Signed-off-by:

mm/gup.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -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;