Line data Source code
1 : /*
2 : * Wrapper functions for accessing the file_struct fd array.
3 : */
4 :
5 : #ifndef __LINUX_FILE_H
6 : #define __LINUX_FILE_H
7 :
8 : #include <linux/compiler.h>
9 : #include <linux/types.h>
10 : #include <linux/posix_types.h>
11 :
12 : struct file;
13 :
14 : extern void __fput(struct file *);
15 : extern void fput(struct file *);
16 : extern void drop_file_write_access(struct file *file);
17 :
18 : struct file_operations;
19 : struct vfsmount;
20 : struct dentry;
21 : struct path;
22 : extern struct file *alloc_file(struct path *, fmode_t mode,
23 : const struct file_operations *fop);
24 :
25 : static inline void fput_light(struct file *file, int fput_needed)
26 : {
27 : if (unlikely(fput_needed))
28 : fput(file);
29 : }
30 :
31 : extern struct file *fget(unsigned int fd);
32 : extern struct file *fget_light(unsigned int fd, int *fput_needed);
33 : extern void set_close_on_exec(unsigned int fd, int flag);
34 : extern void put_filp(struct file *);
35 : extern int alloc_fd(unsigned start, unsigned flags);
36 : extern int get_unused_fd(void);
37 : #define get_unused_fd_flags(flags) alloc_fd(0, (flags))
38 : extern void put_unused_fd(unsigned int fd);
39 :
40 : extern void fd_install(unsigned int fd, struct file *file);
41 2 :
42 : #endif /* __LINUX_FILE_H */
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