ARC: mm: vmalloc sync from kernel to user table to update PMD ...

[linux-2.6-microblaze.git] / arch / arc / mm / fault.c

diff --git a/arch/arc/mm/fault.c b/arch/arc/mm/fault.c
index 41f1543..5787c26 100644 (file)
--- a/arch/arc/mm/fault.c
+++ b/arch/arc/mm/fault.c
@@ -36,25 +36,31 @@ noinline static int handle_kernel_vaddr_fault(unsigned long address)
        pgd = pgd_offset(current->active_mm, address);
        pgd_k = pgd_offset_k(address);
 
-       if (!pgd_present(*pgd_k))
+       if (pgd_none (*pgd_k))
                goto bad_area;
+       if (!pgd_present(*pgd))
+               set_pgd(pgd, *pgd_k);
 
        p4d = p4d_offset(pgd, address);
        p4d_k = p4d_offset(pgd_k, address);
-       if (!p4d_present(*p4d_k))
+       if (p4d_none(*p4d_k))
                goto bad_area;
+       if (!p4d_present(*p4d))
+               set_p4d(p4d, *p4d_k);
 
        pud = pud_offset(p4d, address);
        pud_k = pud_offset(p4d_k, address);
-       if (!pud_present(*pud_k))
+       if (pud_none(*pud_k))
                goto bad_area;
+       if (!pud_present(*pud))
+               set_pud(pud, *pud_k);
 
        pmd = pmd_offset(pud, address);
        pmd_k = pmd_offset(pud_k, address);
-       if (!pmd_present(*pmd_k))
+       if (pmd_none(*pmd_k))
                goto bad_area;
-
-       set_pmd(pmd, *pmd_k);
+       if (!pmd_present(*pmd))
+               set_pmd(pmd, *pmd_k);
 
        /* XXX: create the TLB entry here */
        return 0;