From 26bf01f8abe04a08343fd6bc1edca5479f21eb0d Mon Sep 17 00:00:00 2001 From: Mike Frysinger 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 --- 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 + * + */ + +#ifndef _UAPI_LINUX_TIMERFD_H +#define _UAPI_LINUX_TIMERFD_H + +#include + +/* For O_CLOEXEC and O_NONBLOCK */ +#include + +/* For _IO helpers */ +#include + +/* + * 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