From 2adb7c21dcbf50941b46f1e8d5f1b26ba86f2413 Mon Sep 17 00:00:00 2001
From: Frans Kaashoek <kaashoek@mit.edu>
Date: Sun, 11 Sep 2016 20:17:22 -0400
Subject: Move retry loop/sleep/wakeup in bio.c into sleeping locks

---
 buf.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'buf.h')

diff --git a/buf.h b/buf.h
index 0745be5..3266495 100644
--- a/buf.h
+++ b/buf.h
@@ -3,6 +3,7 @@ struct buf {
   uint dev;
   uint blockno;
   struct sleeplock lock;
+  uint refcnt;
   struct buf *prev; // LRU cache list
   struct buf *next;
   struct buf *qnext; // disk queue
-- 
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