1 files changed, 7 insertions, 0 deletions
diff --git a/defs.h b/defs.h
index 34ed633..300c75c 100644
--- a/defs.h
+++ b/defs.h
@@ -6,6 +6,7 @@ struct pipe;
 struct proc;
 struct rtcdate;
 struct spinlock;
+struct sleeplock;
 struct stat;
 struct superblock;
 
@@ -128,6 +129,12 @@ void            release(struct spinlock*);
 void            pushcli(void);
 void            popcli(void);
 
+// sleeplock.c
+void            acquiresleep(struct sleeplock*);
+void            releasesleep(struct sleeplock*);
+int             holdingsleep(struct sleeplock*);
+void            initsleeplock(struct sleeplock*, char*);
+
 // string.c
 int             memcmp(const void*, const void*, uint);
 void*           memmove(void*, const void*, uint);