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e1ad7468 DL |
1 | /* |
2 | * include/linux/eventfd.h | |
3 | * | |
4 | * Copyright (C) 2007 Davide Libenzi <davidel@xmailserver.org> | |
5 | * | |
6 | */ | |
7 | ||
8 | #ifndef _LINUX_EVENTFD_H | |
9 | #define _LINUX_EVENTFD_H | |
10 | ||
e1ad7468 DL |
11 | #ifdef CONFIG_EVENTFD |
12 | ||
b087498e UD |
13 | /* For O_CLOEXEC */ |
14 | #include <linux/fcntl.h> | |
15 | ||
16 | /* Flags for eventfd2. */ | |
17 | #define EFD_CLOEXEC O_CLOEXEC | |
18 | ||
e1ad7468 DL |
19 | struct file *eventfd_fget(int fd); |
20 | int eventfd_signal(struct file *file, int n); | |
21 | ||
22 | #else /* CONFIG_EVENTFD */ | |
23 | ||
24 | #define eventfd_fget(fd) ERR_PTR(-ENOSYS) | |
d2fd8996 RD |
25 | static inline int eventfd_signal(struct file *file, int n) |
26 | { return 0; } | |
e1ad7468 DL |
27 | |
28 | #endif /* CONFIG_EVENTFD */ | |
29 | ||
e1ad7468 DL |
30 | #endif /* _LINUX_EVENTFD_H */ |
31 |