diff --git a/drivers/android/binder.c b/drivers/android/binder.c index 33b09b6568a4a464657b51667ffe8596c7893b2f..6607f3c6ace1033fd4ca449d579bd2b7638e3963 100644 --- a/drivers/android/binder.c +++ b/drivers/android/binder.c @@ -551,7 +551,6 @@ static int binder_update_page_range(struct binder_proc *proc, int allocate, { void *page_addr; unsigned long user_page_addr; - struct vm_struct tmp_area; struct page **page; struct mm_struct *mm; @@ -600,10 +599,11 @@ static int binder_update_page_range(struct binder_proc *proc, int allocate, proc->pid, page_addr); goto err_alloc_page_failed; } - tmp_area.addr = page_addr; - tmp_area.size = PAGE_SIZE + PAGE_SIZE /* guard page? */; - ret = map_vm_area(&tmp_area, PAGE_KERNEL, page); - if (ret) { + ret = map_kernel_range_noflush((unsigned long)page_addr, + PAGE_SIZE, PAGE_KERNEL, page); + flush_cache_vmap((unsigned long)page_addr, + (unsigned long)page_addr + PAGE_SIZE); + if (ret != 1) { pr_err("%d: binder_alloc_buf failed to map page at %p in kernel\n", proc->pid, page_addr); goto err_map_kernel_failed;