diff options
Diffstat (limited to 'arch/nds32/mm/proc.c')
| -rw-r--r-- | arch/nds32/mm/proc.c | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/arch/nds32/mm/proc.c b/arch/nds32/mm/proc.c index ba80992d13a2..837ae7728830 100644 --- a/arch/nds32/mm/proc.c +++ b/arch/nds32/mm/proc.c @@ -16,10 +16,14 @@ extern struct cache_info L1_cache_info[2]; int va_kernel_present(unsigned long addr) { + p4d_t *p4d; + pud_t *pud; pmd_t *pmd; pte_t *ptep, pte; - pmd = pmd_offset(pgd_offset_k(addr), addr); + p4d = p4d_offset(pgd_offset_k(addr), addr); + pud = pud_offset(p4d, addr); + pmd = pmd_offset(pud, addr); if (!pmd_none(*pmd)) { ptep = pte_offset_map(pmd, addr); pte = *ptep; @@ -32,20 +36,24 @@ int va_kernel_present(unsigned long addr) pte_t va_present(struct mm_struct * mm, unsigned long addr) { pgd_t *pgd; + p4d_t *p4d; pud_t *pud; pmd_t *pmd; pte_t *ptep, pte; pgd = pgd_offset(mm, addr); if (!pgd_none(*pgd)) { - pud = pud_offset(pgd, addr); - if (!pud_none(*pud)) { - pmd = pmd_offset(pud, addr); - if (!pmd_none(*pmd)) { - ptep = pte_offset_map(pmd, addr); - pte = *ptep; - if (pte_present(pte)) - return pte; + p4d = p4d_offset(pgd, addr); + if (!p4d_none(*p4d)) { + pud = pud_offset(p4d, addr); + if (!pud_none(*pud)) { + pmd = pmd_offset(pud, addr); + if (!pmd_none(*pmd)) { + ptep = pte_offset_map(pmd, addr); + pte = *ptep; + if (pte_present(pte)) + return pte; + } } } } |