Commit be9d3045 authored by Wei Yang's avatar Wei Yang Committed by Linus Torvalds

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/20200113070322.26627-1-richardw.yang@linux.intel.comSigned-off-by: default avatarWei Yang <richardw.yang@linux.intel.com>
Acked-by: default avatarVlastimil Babka <vbabka@suse.cz>
Acked-by: default avatarDavid Rientjes <rientjes@google.com>
Reviewed-by: default avatarRalph Campbell <rcampbell@nvidia.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 15494520
...@@ -323,7 +323,7 @@ static struct page *follow_pmd_mask(struct vm_area_struct *vma, ...@@ -323,7 +323,7 @@ static struct page *follow_pmd_mask(struct vm_area_struct *vma,
pmdval = READ_ONCE(*pmd); pmdval = READ_ONCE(*pmd);
if (pmd_none(pmdval)) if (pmd_none(pmdval))
return no_page_table(vma, flags); 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); page = follow_huge_pmd(mm, address, pmd, flags);
if (page) if (page)
return page; return page;
...@@ -433,7 +433,7 @@ static struct page *follow_pud_mask(struct vm_area_struct *vma, ...@@ -433,7 +433,7 @@ static struct page *follow_pud_mask(struct vm_area_struct *vma,
pud = pud_offset(p4dp, address); pud = pud_offset(p4dp, address);
if (pud_none(*pud)) if (pud_none(*pud))
return no_page_table(vma, flags); 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); page = follow_huge_pud(mm, address, pud, flags);
if (page) if (page)
return page; return page;
......
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