575b1967e1
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. Link: http://lkml.kernel.org/r/20161219064052.7196-1-vapier@gentoo.org Signed-off-by: Mike Frysinger <vapier@gentoo.org> Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
37 lines
888 B
C
37 lines
888 B
C
/*
|
|
* 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 */
|