wait for mount to complete before exiting

src/cmd/9pfuse/a.h

@@ -37,6 +37,7 @@ extern char *fusemtpt;
 void		freefusemsg(FuseMsg *m);
 int		fusefmt(Fmt*);
 void		initfuse(char *mtpt);
+void	waitfuse(void);
 FuseMsg*	readfusemsg(void);
 void		replyfuse(FuseMsg *m, void *arg, int narg);
 void		replyfuseerrno(FuseMsg *m, int e);

src/cmd/9pfuse/fuse.c

@@ -763,7 +763,6 @@ mountfuse(char *mtpt)
 	close(p[0]);
 	fd = recvfd(p[1]);
 	close(p[1]);
-	waitpid();
 	return fd;
 #elif defined(__FreeBSD__)
 	int pid, fd;
@@ -781,7 +780,6 @@ mountfuse(char *mtpt)
 		fprint(2, "exec mount_fusefs: %r\n");
 		_exit(1);
 	}
-	waitpid();
 	return fd;
 #else
 	werrstr("cannot mount fuse on this system");
@@ -789,6 +787,12 @@ mountfuse(char *mtpt)
 #endif
 }
 
+void
+waitfuse(void)
+{
+	waitpid();
+}
+
 void
 unmountfuse(char *mtpt)
 {

src/cmd/9pfuse/main.c

@@ -97,6 +97,11 @@ threadmain(int argc, char **argv)
 	sendp(fusechan, nil);	/* sync */
 
 	proccreate(fusereader, nil, STACK);
+	/*
+	 * Now that we're serving FUSE, we can wait
+	 * for the mount to finish and exit back to the user.
+	 */
+	waitfuse();
 	threadexits(0);
 }