x86/asm/memcpy_mcsafe: Define copy_to_iter_mcsafe()

[sfrench/cifs-2.6.git] / arch / x86 / include / asm / uaccess_64.h

diff --git a/arch/x86/include/asm/uaccess_64.h b/arch/x86/include/asm/uaccess_64.h
index c63efc07891f1c1bfbb9f3624effaddd771eb3ad..62acb613114b2322088083f7a9ccc85495a5afa4 100644 (file)
--- a/arch/x86/include/asm/uaccess_64.h
+++ b/arch/x86/include/asm/uaccess_64.h
@@ -46,6 +46,17 @@ copy_user_generic(void *to, const void *from, unsigned len)
        return ret;
 }
 
+static __always_inline __must_check unsigned long
+copy_to_user_mcsafe(void *to, const void *from, unsigned len)
+{
+       unsigned long ret;
+
+       __uaccess_begin();
+       ret = memcpy_mcsafe(to, from, len);
+       __uaccess_end();
+       return ret;
+}
+
 static __always_inline __must_check unsigned long
 raw_copy_from_user(void *dst, const void __user *src, unsigned long size)
 {