| 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 | extern int init_file(struct file *, struct vfsmount *mnt, |
| 22 | struct dentry *dentry, fmode_t mode, |
| 23 | const struct file_operations *fop); |
| 24 | extern struct file *alloc_file(struct vfsmount *, struct dentry *dentry, |
| 25 | fmode_t mode, const struct file_operations *fop); |
| 26 | |
| 27 | static inline void fput_light(struct file *file, int fput_needed) |
| 28 | { |
| 29 | if (unlikely(fput_needed)) |
| 30 | fput(file); |
| 31 | } |
| 32 | |
| 33 | extern struct file *fget(unsigned int fd); |
| 34 | extern struct file *fget_light(unsigned int fd, int *fput_needed); |
| 35 | extern void set_close_on_exec(unsigned int fd, int flag); |
| 36 | extern void put_filp(struct file *); |
| 37 | extern int alloc_fd(unsigned start, unsigned flags); |
| 38 | extern int get_unused_fd(void); |
| 39 | #define get_unused_fd_flags(flags) alloc_fd(0, (flags)) |
| 40 | extern void put_unused_fd(unsigned int fd); |
| 41 | |
| 42 | extern void fd_install(unsigned int fd, struct file *file); |
| 43 | |
| 44 | #endif /* __LINUX_FILE_H */ |