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-rw-r--r--include/linux/types.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/types.h b/include/linux/types.h
index bd912bcb42..baa2c491ea 100644
--- a/include/linux/types.h
+++ b/include/linux/types.h
@@ -163,4 +163,8 @@ struct ustat {
#define DECLARE_BITMAP(name, bits) \
unsigned long name[BITS_TO_LONGS(bits)]
+typedef volatile unsigned long vu_long;
+typedef volatile unsigned short vu_short;
+typedef volatile unsigned char vu_char;
+
#endif /* _LINUX_TYPES_H */