X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?p=pintos-anon;a=blobdiff_plain;f=src%2Fthreads%2Fthread.h;h=b45bdb8616f02b66c72a3c455215233de1b4f761;hp=fbef34b4673720b2f62bf3a80d1e08eadb441aa3;hb=d4c30c6a386fe850e7eed1025e459fbc82a0b6e2;hpb=17102846d22591590c37548f8514067e2be6c5f6

diff --git a/src/threads/thread.h b/src/threads/thread.h
index fbef34b..b45bdb8 100644
--- a/src/threads/thread.h
+++ b/src/threads/thread.h
@@ -101,6 +101,13 @@ struct thread
     unsigned magic;                     /* Detects stack overflow. */
   };
 
+/* If false (default), use round-robin scheduler.
+   If true, use multi-level feedback queue scheduler.
+   Controlled by kernel command-line options "-o mlfqs".
+   Note that the command line is not parsed until well after
+   thread_init() is called. */
+extern bool thread_mlfqs;
+
 void thread_init (void);
 void thread_start (void);