Re: [PATCH 0/5] MR3103: server: Create and use a desktop shared mapping for GetCursorPos.

[Jinoh Kang (＠iamahuman)]

Jinoh Kang (@iamahuman) commented about dlls/win32u/ntuser_private.h:
> BOOL is_child( HWND parent, HWND child ) DECLSPEC_HIDDEN;
>  BOOL is_window( HWND hwnd ) DECLSPEC_HIDDEN;
>
> +#if defined(__i386__) || defined(__x86_64__)
> +#define __SHARED_READ_SEQ( x ) (*(x))
> +#define __SHARED_READ_FENCE do {} while(0)

A compiler barrier is (still) required regardless of whether or not the underlying architecture has strong memory ordering semantics.

```suggestion:-0+0
#define __SHARED_READ_FENCE __asm__ __volatile__( "" ::: "memory" );
```