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8#ifndef _LINUX_EVENTPOLL_H
9#define _LINUX_EVENTPOLL_H
10
11#include <uapi/linux/eventpoll.h>
12#include <uapi/linux/kcmp.h>
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14
15
16struct file;
17
18
19#ifdef CONFIG_EPOLL
20
21#ifdef CONFIG_KCMP
22struct file *get_epoll_tfile_raw_ptr(struct file *file, int tfd, unsigned long toff);
23#endif
24
25
26void eventpoll_release_file(struct file *file);
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33
34static inline void eventpoll_release(struct file *file)
35{
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43
44
45 if (likely(!file->f_ep))
46 return;
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53 eventpoll_release_file(file);
54}
55
56int do_epoll_ctl(int epfd, int op, int fd, struct epoll_event *epds,
57 bool nonblock);
58
59
60static inline int ep_op_has_event(int op)
61{
62 return op != EPOLL_CTL_DEL;
63}
64
65#else
66
67static inline void eventpoll_release(struct file *file) {}
68
69#endif
70
71#if defined(CONFIG_ARM) && defined(CONFIG_OABI_COMPAT)
72
73extern struct epoll_event __user *
74epoll_put_uevent(__poll_t revents, __u64 data,
75 struct epoll_event __user *uevent);
76#else
77static inline struct epoll_event __user *
78epoll_put_uevent(__poll_t revents, __u64 data,
79 struct epoll_event __user *uevent)
80{
81 if (__put_user(revents, &uevent->events) ||
82 __put_user(data, &uevent->data))
83 return NULL;
84
85 return uevent+1;
86}
87#endif
88
89#endif
90