36 struct fd {  struct
43 static inline void fdput(struct fd fd)  in fdput()  argument
45 	if (fd.flags & FDPUT_FPUT)  in fdput()
46 		fput(fd.file);  in fdput()
49 extern struct file *fget(unsigned int fd);
50 extern struct file *fget_raw(unsigned int fd);
51 extern struct file *fget_task(struct task_struct *task, unsigned int fd);
52 extern unsigned long __fdget(unsigned int fd);
53 extern unsigned long __fdget_raw(unsigned int fd);
54 extern unsigned long __fdget_pos(unsigned int fd);
57 static inline struct fd __to_fd(unsigned long v)  in __to_fd()
59 	return (struct fd){(struct file *)(v & ~3),v & 3};  in __to_fd()
62 static inline struct fd fdget(unsigned int fd)  in fdget()  argument
64 	return __to_fd(__fdget(fd));  in fdget()
67 static inline struct fd fdget_raw(unsigned int fd)  in fdget_raw()  argument
69 	return __to_fd(__fdget_raw(fd));  in fdget_raw()
72 static inline struct fd fdget_pos(int fd)  in fdget_pos()  argument
74 	return __to_fd(__fdget_pos(fd));  in fdget_pos()
77 static inline void fdput_pos(struct fd f)  in fdput_pos()
84 DEFINE_CLASS(fd, struct fd, fdput(_T), fdget(fd), int fd)
87 extern int replace_fd(unsigned fd, struct file *file, unsigned flags);
88 extern void set_close_on_exec(unsigned int fd, int flag);
89 extern bool get_close_on_exec(unsigned int fd);
92 extern void put_unused_fd(unsigned int fd);
97 extern void fd_install(unsigned int fd, struct file *file);