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From 26bf01f8abe04a08343fd6bc1edca5479f21eb0d Mon Sep 17 00:00:00 2001
From: Mike Frysinger <vapier@gentoo.org>
Date: Tue, 30 Dec 2014 19:14:51 -0500
Subject: [PATCH] timerfd: export defines to userspace
Since userspace is expected to call timerfd syscalls directly with these
flags/ioctls, make sure we export them so they don't have to duplicate
the values themselves.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
---
include/linux/timerfd.h | 20 +-------------------
include/uapi/linux/Kbuild | 1 +
include/uapi/linux/timerfd.h | 36 ++++++++++++++++++++++++++++++++++++
3 files changed, 38 insertions(+), 19 deletions(-)
create mode 100644 include/uapi/linux/timerfd.h
diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild
index cd2be1c8e9fb..9c4d25ed8e1e 100644
--- a/include/uapi/linux/Kbuild
+++ b/include/uapi/linux/Kbuild
@@ -411,6 +411,7 @@ header-y += telephony.h
header-y += termios.h
header-y += thermal.h
header-y += time.h
+header-y += timerfd.h
header-y += times.h
header-y += timex.h
header-y += tiocl.h
diff --git a/include/uapi/linux/timerfd.h b/include/uapi/linux/timerfd.h
new file mode 100644
index 000000000000..6fcfaa8da173
--- /dev/null
+++ b/include/uapi/linux/timerfd.h
@@ -0,0 +1,36 @@
+/*
+ * include/linux/timerfd.h
+ *
+ * Copyright (C) 2007 Davide Libenzi <davidel@xmailserver.org>
+ *
+ */
+
+#ifndef _UAPI_LINUX_TIMERFD_H
+#define _UAPI_LINUX_TIMERFD_H
+
+#include <linux/types.h>
+
+/* 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
+ * to re-use O_* flags that couldn't possibly have a meaning
+ * from eventfd, in order to leave a free define-space for
+ * shared O_* flags.
+ *
+ * Also make sure to update the masks in include/linux/timerfd.h
+ * when adding new flags.
+ */
+#define TFD_TIMER_ABSTIME (1 << 0)
+#define TFD_TIMER_CANCEL_ON_SET (1 << 1)
+#define TFD_CLOEXEC O_CLOEXEC
+#define TFD_NONBLOCK O_NONBLOCK
+
+#define TFD_IOC_SET_TICKS _IOW('T', 0, __u64)
+
+#endif /* _UAPI_LINUX_TIMERFD_H */
--
2.11.0.rc2
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