passes both usertests

exit had acquire where I meant release
swtch now checks that you hold no locks

1 files changed, 1 insertions, 0 deletions

diff --git a/proc.h b/proc.h
index 4c5807b..e13df41 100644
--- a/proc.h
+++ b/proc.h
@@ -45,6 +45,7 @@ struct proc{
   int ppid;
   void *chan; // sleep
   int killed;
+  int locks; // # of locks currently held
   struct fd *fds[NOFILE];
 
   struct Taskstate ts;  // only to give cpu address of kernel stack