restorer: Use LAST_PID_PATH directly

After Andrey's work with making restorer a regular .o file we can do it
(the pthread00 test doesn't fail on it).
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>

cr-restore.c

@@ -1585,10 +1585,6 @@ static void sigreturn_restore(pid_t pstree_pid, pid_t pid)
 
 	cr_mutex_init(&task_args->rst_lock);
 
-	strncpy(task_args->ns_last_pid_path,
-		LAST_PID_PATH,
-		sizeof(task_args->ns_last_pid_path));
-
 	if (pstree_entry.nr_threads) {
 		int i;
 

include/restorer.h

@@ -66,7 +66,6 @@ struct task_restore_core_args {
 	int				pid;			/* task pid */
 	int				fd_core;		/* opened core file */
 	int				fd_self_vmas;		/* opened file with running VMAs to unmap */
-	char				ns_last_pid_path[sizeof(LAST_PID_PATH) + 1];
 	int				logfd;
 	bool				restore_threads;	/* if to restore threads */
 	u32				rst_lock;

restorer.c

@@ -441,7 +441,7 @@ long restore_task(struct task_restore_core_args *args)
 		long parent_tid;
 		int i, fd;
 
-		fd = sys_open(args->ns_last_pid_path, O_RDWR, LAST_PID_PERM);
+		fd = sys_open(LAST_PID_PATH, O_RDWR, LAST_PID_PERM);
 		if (fd < 0) {
 			write_num_n(__LINE__);
 			write_num_n(fd);