diff options
| -rw-r--r-- | arch/arm64/mm/flush.c | 8 | ||||
| -rw-r--r-- | arch/arm64/mm/mmu.c | 1 |
2 files changed, 3 insertions, 6 deletions
diff --git a/arch/arm64/mm/flush.c b/arch/arm64/mm/flush.c index b9cd7a4deec..7c716634a67 100644 --- a/arch/arm64/mm/flush.c +++ b/arch/arm64/mm/flush.c @@ -77,14 +77,12 @@ void __flush_dcache_page(struct page *page) void __sync_icache_dcache(pte_t pte, unsigned long addr) { - unsigned long pfn; - struct page *page; + struct page *page = pte_page(pte); - pfn = pte_pfn(pte); - if (!pfn_valid(pfn)) + /* no flushing needed for anonymous pages */ + if (!page_mapping(page)) return; - page = pfn_to_page(pfn); if (!test_and_set_bit(PG_dcache_clean, &page->flags)) { __flush_dcache_page(page); __flush_icache_all(); diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c index eeecc9c8ed6..80a369eab63 100644 --- a/arch/arm64/mm/mmu.c +++ b/arch/arm64/mm/mmu.c @@ -339,7 +339,6 @@ void __init paging_init(void) bootmem_init(); empty_zero_page = virt_to_page(zero_page); - __flush_dcache_page(empty_zero_page); /* * TTBR0 is only used for the identity mapping at this stage. Make it |