diff options
Diffstat (limited to 'arch/sh/mm/fault.c')
| -rw-r--r-- | arch/sh/mm/fault.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/arch/sh/mm/fault.c b/arch/sh/mm/fault.c index a169b0bedca8..97c716854a97 100644 --- a/arch/sh/mm/fault.c +++ b/arch/sh/mm/fault.c @@ -290,6 +290,7 @@ void update_mmu_cache(struct vm_area_struct * vma, unsigned long vpn; #if defined(__SH4__) struct page *page; + unsigned long pfn; unsigned long ptea; #endif @@ -298,11 +299,14 @@ void update_mmu_cache(struct vm_area_struct * vma, return; #if defined(__SH4__) - page = pte_page(pte); - if (VALID_PAGE(page) && !test_bit(PG_mapped, &page->flags)) { - unsigned long phys = pte_val(pte) & PTE_PHYS_MASK; - __flush_wback_region((void *)P1SEGADDR(phys), PAGE_SIZE); - __set_bit(PG_mapped, &page->flags); + pfn = pte_pfn(pte); + if (pfn_valid(pfn)) { + page = pfn_to_page(pfn); + if (!test_bit(PG_mapped, &page->flags)) { + unsigned long phys = pte_val(pte) & PTE_PHYS_MASK; + __flush_wback_region((void *)P1SEGADDR(phys), PAGE_SIZE); + __set_bit(PG_mapped, &page->flags); + } } #endif |