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[patch] alpha madv constants
- To: libc-alpha at sourceware dot cygnus dot com
- Subject: [patch] alpha madv constants
- From: Richard Henderson <rth at twiddle dot net>
- Date: Mon, 20 Mar 2000 12:24:01 -0800
* sysdeps/unix/sysv/linux/alpha/bits/mman.h: Add MADV constants.
Index: sysdeps/unix/sysv/linux/alpha/bits/mman.h
===================================================================
RCS file: /cvs/glibc/libc/sysdeps/unix/sysv/linux/alpha/bits/mman.h,v
retrieving revision 1.3
diff -u -p -d -r1.3 mman.h
--- mman.h 1998/01/26 22:52:51 1.3
+++ mman.h 2000/03/20 20:01:54
@@ -81,3 +81,19 @@
#ifdef __USE_GNU
# define MREMAP_MAYMOVE 1
#endif
+
+/* Advice to `madvise'. */
+#ifdef __USE_BSD
+# define MADV_NORMAL 0 /* No further special treatment. */
+# define MADV_RANDOM 1 /* Expect random page references. */
+# define MADV_SEQUENTIAL 2 /* Expect sequential page references. */
+# define MADV_WILLNEED 3 /* Will need these pages. */
+# define MADV_DONTNEED 6 /* Don't need these pages. */
+#endif
+
+/* Not used by Linux, but here to make sure we don't clash with
+ OSF/1 defines. */
+#if 0 && defined(__USE_BSD)
+# define MADV_DONTNEED_COMPAT 4 /* Old version? */
+# define MADV_SPACEAVAIL 5 /* Ensure resources are available. */
+#endif