Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64...

[sfrench/cifs-2.6.git] / include / linux / compat.h

diff --git a/include/linux/compat.h b/include/linux/compat.h
index df45ee8413d6d20e0741df750a6fab8fa3196ece..1a3c4f37e90818beee4afbaf9dfbea6e78000398 100644 (file)
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -1019,6 +1019,17 @@ static inline struct compat_timeval ns_to_compat_timeval(s64 nsec)
        return ctv;
 }
 
+/*
+ * Kernel code should not call compat syscalls (i.e., compat_sys_xyzyyz())
+ * directly.  Instead, use one of the functions which work equivalently, such
+ * as the kcompat_sys_xyzyyz() functions prototyped below.
+ */
+
+int kcompat_sys_statfs64(const char __user * pathname, compat_size_t sz,
+                    struct compat_statfs64 __user * buf);
+int kcompat_sys_fstatfs64(unsigned int fd, compat_size_t sz,
+                         struct compat_statfs64 __user * buf);
+
 #else /* !CONFIG_COMPAT */
 
 #define is_compat_task() (0)