diff options
Diffstat (limited to 'arch/arm/mm/fault-armv.c')
| -rw-r--r-- | arch/arm/mm/fault-armv.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/arm/mm/fault-armv.c b/arch/arm/mm/fault-armv.c index d06bdb302b6d..dea4ccc1e604 100644 --- a/arch/arm/mm/fault-armv.c +++ b/arch/arm/mm/fault-armv.c @@ -240,9 +240,13 @@ make_coherent(struct vm_area_struct *vma, unsigned long addr, struct page *page) */ void update_mmu_cache(struct vm_area_struct *vma, unsigned long addr, pte_t pte) { - struct page *page = pte_page(pte); + unsigned long pfn = pte_pfn(pte); + struct page *page; - if (VALID_PAGE(page) && page->mapping) { + if (!pfn_valid(pfn)) + return; + page = pfn_to_page(pfn); + if (page->mapping) { if (test_and_clear_bit(PG_dcache_dirty, &page->flags)) __flush_dcache_page(page); |