Merge remote-tracking branch 'mkp-scsi/4.11/scsi-fixes' into fixes

[linux-2.6-block.git] / mm / gup.c

diff --git a/mm/gup.c b/mm/gup.c
index 40abe4c903834573d3249326b957553b72bd8eb9..9c047e951aa3d0399f331eb3914b09d207dc989b 100644 (file)
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -10,7 +10,7 @@
 #include <linux/swap.h>
 #include <linux/swapops.h>
 
-#include <linux/sched.h>
+#include <linux/sched/signal.h>
 #include <linux/rwsem.h>
 #include <linux/hugetlb.h>
 
@@ -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);