From db6c5c772053534576b9798f800340d364224827 Mon Sep 17 00:00:00 2001
From: sorgelig <pour.garbage@gmail.com>
Date: Sat, 5 Jun 2021 23:23:37 +0800
Subject: [PATCH] user_io: limit disk i/o requets per cycle.

---
 user_io.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/user_io.cpp b/user_io.cpp
index ec7e53e..2058848 100644
--- a/user_io.cpp
+++ b/user_io.cpp
@@ -2591,7 +2591,7 @@ void user_io_poll()
 	{
 		if (is_st()) tos_poll();
 
-		while (1)
+		for (int i = 0; i < 4; i++)
 		{
 			int disk = -1;
 			int ack = 0;