240 	int do_wakeup;  in pipe_read()  local
247 	do_wakeup = 0;  in pipe_read()
292 				do_wakeup = 1;  in pipe_read()
320 		if (do_wakeup) {  in pipe_read()
329 	if (do_wakeup) {  in pipe_read()
349 	int do_wakeup = 0;  in pipe_write()  local
384 			do_wakeup = 1;  in pipe_write()
420 			do_wakeup = 1;  in pipe_write()
457 		if (do_wakeup) {  in pipe_write()
460 			do_wakeup = 0;  in pipe_write()
468 	if (do_wakeup) {  in pipe_write()