extern struct file *fget_light(unsigned int fd, int *fput_needed);
extern void set_close_on_exec(unsigned int fd, int flag);
extern void put_filp(struct file *);
+extern int alloc_fd(unsigned start, unsigned flags);
extern int get_unused_fd(void);
-extern int get_unused_fd_flags(int flags);
+#define get_unused_fd_flags(flags) alloc_fd(0, (flags))
extern void put_unused_fd(unsigned int fd);
extern void fd_install(unsigned int fd, struct file *file);