2 * Wrapper functions for accessing the file_struct fd array.
8 #include <linux/compiler.h>
9 #include <linux/types.h>
10 #include <linux/posix_types.h>
14 extern void fput(struct file
*);
16 struct file_operations
;
20 extern struct file
*alloc_file(struct path
*, fmode_t mode
,
21 const struct file_operations
*fop
);
23 static inline void fput_light(struct file
*file
, int fput_needed
)
34 #define FDPUT_POS_UNLOCK 2
36 static inline void fdput(struct fd fd
)
38 if (fd
.flags
& FDPUT_FPUT
)
42 extern struct file
*fget(unsigned int fd
);
43 extern struct file
*fget_raw(unsigned int fd
);
44 extern unsigned long __fdget(unsigned int fd
);
45 extern unsigned long __fdget_raw(unsigned int fd
);
46 extern unsigned long __fdget_pos(unsigned int fd
);
48 static inline struct fd
__to_fd(unsigned long v
)
50 return (struct fd
){(struct file
*)(v
& ~3),v
& 3};
53 static inline struct fd
fdget(unsigned int fd
)
55 return __to_fd(__fdget(fd
));
58 static inline struct fd
fdget_raw(unsigned int fd
)
60 return __to_fd(__fdget_raw(fd
));
63 extern int f_dupfd(unsigned int from
, struct file
*file
, unsigned flags
);
64 extern int replace_fd(unsigned fd
, struct file
*file
, unsigned flags
);
65 extern void set_close_on_exec(unsigned int fd
, int flag
);
66 extern bool get_close_on_exec(unsigned int fd
);
67 extern void put_filp(struct file
*);
68 extern int get_unused_fd_flags(unsigned flags
);
69 extern void put_unused_fd(unsigned int fd
);
71 extern void fd_install(unsigned int fd
, struct file
*file
);
73 extern void flush_delayed_fput(void);
74 extern void __fput_sync(struct file
*);
76 #endif /* __LINUX_FILE_H */