X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2Fthreads%2Fpalloc.h;fp=src%2Fthreads%2Fpalloc.h;h=adfb3ca67e7ecb0cd7e87c631b85f1c8023c44ff;hb=b4e9c266d656c6b595cc57920a34937776acc300;hp=cb3b70e94c93b6642ae35b74eee636da594c2d8d;hpb=6ffbc2b68c34c2d1e42d5f6bcd8f2b94b82d05d7;p=pintos-anon

diff --git a/src/threads/palloc.h b/src/threads/palloc.h
index cb3b70e..adfb3ca 100644
--- a/src/threads/palloc.h
+++ b/src/threads/palloc.h
@@ -6,11 +6,14 @@
 /* How to allocate pages. */
 enum palloc_flags
   {
-    PAL_ASSERT = 001,           /* Panic on failure. */
-    PAL_ZERO = 002,             /* Zero page contents. */
-    PAL_USER = 004              /* User page. */
+    PAL_ASSERT = 1 << 0,   /* Panic on failure. */
+    PAL_ZERO = 1 << 1,     /* Zero page contents. */
+    PAL_USER = 1 << 2,     /* User page. */
+    PAL_NOCACHE = 1 << 3   /* Disable memory caching for page. */
   };
 
+extern void *zero_page;
+
 void palloc_init (size_t user_page_limit);
 void *palloc_get_page (enum palloc_flags);
 void *palloc_get_multiple (enum palloc_flags, size_t page_cnt);