diff options
Diffstat (limited to 'arch/xtensa/mm/tlb.c')
| -rw-r--r-- | arch/xtensa/mm/tlb.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/xtensa/mm/tlb.c b/arch/xtensa/mm/tlb.c index 164a2ca07a1f..ec8220973252 100644 --- a/arch/xtensa/mm/tlb.c +++ b/arch/xtensa/mm/tlb.c @@ -169,6 +169,7 @@ static unsigned get_pte_for_vaddr(unsigned vaddr) struct task_struct *task = get_current(); struct mm_struct *mm = task->mm; pgd_t *pgd; + p4d_t *p4d; pud_t *pud; pmd_t *pmd; pte_t *pte; @@ -178,7 +179,10 @@ static unsigned get_pte_for_vaddr(unsigned vaddr) pgd = pgd_offset(mm, vaddr); if (pgd_none_or_clear_bad(pgd)) return 0; - pud = pud_offset(pgd, vaddr); + p4d = p4d_offset(pgd, vaddr); + if (p4d_none_or_clear_bad(p4d)) + return 0; + pud = pud_offset(p4d, vaddr); if (pud_none_or_clear_bad(pud)) return 0; pmd = pmd_offset(pud, vaddr); |