1 files changed, 5 insertions, 0 deletions

diff --git a/include/linux/timerfd.h b/include/linux/timerfd.h
index d3b57fa12225..bd36ce431e32 100644
--- a/include/linux/timerfd.h
+++ b/include/linux/timerfd.h
@@ -11,6 +11,9 @@
 /* For O_CLOEXEC and O_NONBLOCK */
 #include <linux/fcntl.h>
 
+/* For _IO helpers */
+#include <linux/ioctl.h>
+
 /*
  * CAREFUL: Check include/asm-generic/fcntl.h when defining
  * new flags, since they might collide with O_* ones. We want
@@ -29,4 +32,6 @@
 /* Flags for timerfd_settime.  */
 #define TFD_SETTIME_FLAGS (TFD_TIMER_ABSTIME | TFD_TIMER_CANCEL_ON_SET)
 
+#define TFD_IOC_SET_TICKS       _IOW('T', 0, u64)
+
 #endif /* _LINUX_TIMERFD_H */