diff options
Diffstat (limited to 'mm/gup.c')
-rw-r--r-- | mm/gup.c | 12 |
1 files changed, 10 insertions, 2 deletions
@@ -253,6 +253,13 @@ struct page *follow_page_mask(struct vm_area_struct *vma, return page; return no_page_table(vma, flags); } + if (pud_devmap(*pud)) { + ptl = pud_lock(mm, pud); + page = follow_devmap_pud(vma, address, pud, flags); + spin_unlock(ptl); + if (page) + return page; + } if (unlikely(pud_bad(*pud))) return no_page_table(vma, flags); @@ -265,8 +272,6 @@ struct page *follow_page_mask(struct vm_area_struct *vma, return page; return no_page_table(vma, flags); } - if ((flags & FOLL_NUMA) && pmd_protnone(*pmd)) - return no_page_table(vma, flags); if (pmd_devmap(*pmd)) { ptl = pmd_lock(mm, pmd); page = follow_devmap_pmd(vma, address, pmd, flags); @@ -277,6 +282,9 @@ struct page *follow_page_mask(struct vm_area_struct *vma, if (likely(!pmd_trans_huge(*pmd))) return follow_page_pte(vma, address, pmd, flags); + if ((flags & FOLL_NUMA) && pmd_protnone(*pmd)) + return no_page_table(vma, flags); + ptl = pmd_lock(mm, pmd); if (unlikely(!pmd_trans_huge(*pmd))) { spin_unlock(ptl); |