eventpoll.h: add missing epoll event masks

commit 7e040726850a106587485c21bdacc0bfc8a0cbed upstream.

[resend due to me forgetting to cc: linux-api the first time around I
posted these back on Feb 23]

From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

For some reason these values are not in the uapi header file, so any
libc has to define it themselves.  To prevent them from needing to do
this, just have the kernel provide the correct values.

Reported-by: Elliott Hughes <enh@google.com>
Signed-off-by: Greg Hackmann <ghackmann@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/include/uapi/linux/eventpoll.h b/include/uapi/linux/eventpoll.h
index bc81fb2e1f0e19d363d3c8095c85b971c521d12a..6f04cb419115ac74dfca512952f15f24bc001aca 100644 (file)
--- a/include/uapi/linux/eventpoll.h
+++ b/include/uapi/linux/eventpoll.h
@@ -26,6 +26,19 @@
 #define EPOLL_CTL_DEL 2
 #define EPOLL_CTL_MOD 3
 
+/* Epoll event masks */
+#define EPOLLIN                0x00000001
+#define EPOLLPRI       0x00000002
+#define EPOLLOUT       0x00000004
+#define EPOLLERR       0x00000008
+#define EPOLLHUP       0x00000010
+#define EPOLLRDNORM    0x00000040
+#define EPOLLRDBAND    0x00000080
+#define EPOLLWRNORM    0x00000100
+#define EPOLLWRBAND    0x00000200
+#define EPOLLMSG       0x00000400
+#define EPOLLRDHUP     0x00002000
+
 /*
  * Request the handling of system wakeup events so as to prevent system suspends
  * from happening while those events are being processed.