um: header debriding - os.h

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>

arch/um/include/shared/os.h

@@ -159,20 +159,11 @@ extern int os_create_unix_socket(const char *file, int len, int close_on_exec);
 extern int os_shutdown_socket(int fd, int r, int w);
 extern void os_close_file(int fd);
 extern int os_rcv_fd(int fd, int *helper_pid_out);
-extern int create_unix_socket(char *file, int len, int close_on_exec);
 extern int os_connect_socket(const char *name);
 extern int os_file_type(char *file);
 extern int os_file_mode(const char *file, struct openflags *mode_out);
 extern int os_lock_file(int fd, int excl);
 extern void os_flush_stdout(void);
-extern int os_stat_filesystem(char *path, long *bsize_out,
-			      long long *blocks_out, long long *bfree_out,
-			      long long *bavail_out, long long *files_out,
-			      long long *ffree_out, void *fsid_out,
-			      int fsid_size, long *namelen_out,
-			      long *spare_out);
-extern int os_change_dir(char *dir);
-extern int os_fchange_dir(int fd);
 extern unsigned os_major(unsigned long long dev);
 extern unsigned os_minor(unsigned long long dev);
 extern unsigned long long os_makedev(unsigned major, unsigned minor);
@@ -232,7 +223,6 @@ extern char *get_umid(void);
 /* signal.c */
 extern void timer_set_signal_handler(void);
 extern void set_sigstack(void *sig_stack, int size);
-extern void remove_sigstack(void);
 extern void set_handler(int sig);
 extern void send_sigio_to_self(void);
 extern int change_sig(int signal, int on);
@@ -266,7 +256,6 @@ extern int os_timer_create(void);
 extern int os_timer_set_interval(unsigned long long nsecs);
 extern int os_timer_one_shot(unsigned long long nsecs);
 extern void os_timer_disable(void);
-extern void uml_idle_timer(void);
 extern long long os_persistent_clock_emulation(void);
 extern long long os_nsecs(void);
 
@@ -290,8 +279,6 @@ extern int is_skas_winch(int pid, int fd, void *data);
 extern int start_userspace(unsigned long stub_stack);
 extern int copy_context_skas0(unsigned long stack, int pid);
 extern void userspace(struct uml_pt_regs *regs, unsigned long *aux_fp_regs);
-extern int map_stub_pages(int fd, unsigned long code, unsigned long data,
-			  unsigned long stack);
 extern void new_thread(void *stack, jmp_buf *buf, void (*handler)(void));
 extern void switch_threads(jmp_buf *me, jmp_buf *you);
 extern int start_idle_thread(void *stack, jmp_buf *switch_buf);