2 files changed, 4 insertions, 0 deletions

diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h
index 993bce527b85..902eb708804a 100644
--- a/arch/arm64/include/asm/memory.h
+++ b/arch/arm64/include/asm/memory.h
@@ -56,6 +56,8 @@
 #define TASK_SIZE_32            UL(0x100000000)
 #define TASK_SIZE               (test_thread_flag(TIF_32BIT) ? \
                                 TASK_SIZE_32 : TASK_SIZE_64)
+#define TASK_SIZE_OF(tsk)       (test_tsk_thread_flag(tsk, TIF_32BIT) ? \
+                                TASK_SIZE_32 : TASK_SIZE_64)
 #else
 #define TASK_SIZE               TASK_SIZE_64
 #endif /* CONFIG_COMPAT */
diff --git a/arch/arm64/mm/copypage.c b/arch/arm64/mm/copypage.c
index 9aecbace4128..13bbc3be6f5a 100644
--- a/arch/arm64/mm/copypage.c
+++ b/arch/arm64/mm/copypage.c
@@ -27,8 +27,10 @@ void __cpu_copy_user_page(void *kto, const void *kfrom, unsigned long vaddr)
         copy_page(kto, kfrom);
         __flush_dcache_area(kto, PAGE_SIZE);
 }
+EXPORT_SYMBOL_GPL(__cpu_copy_user_page);
 
 void __cpu_clear_user_page(void *kaddr, unsigned long vaddr)
 {
         clear_page(kaddr);
 }
+EXPORT_SYMBOL_GPL(__cpu_clear_user_page);