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-rw-r--r--libc/sysdeps/linux/x86_64/bits/fcntl.h8
-rw-r--r--libc/sysdeps/linux/x86_64/bits/mman.h3
2 files changed, 10 insertions, 1 deletions
diff --git a/libc/sysdeps/linux/x86_64/bits/fcntl.h b/libc/sysdeps/linux/x86_64/bits/fcntl.h
index 6ba65c7c6..9198c70bd 100644
--- a/libc/sysdeps/linux/x86_64/bits/fcntl.h
+++ b/libc/sysdeps/linux/x86_64/bits/fcntl.h
@@ -193,3 +193,11 @@ struct flock64
# define POSIX_FADV_DONTNEED 4 /* Don't need these pages. */
# define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */
#endif
+
+__BEGIN_DECLS
+
+/* Provide kernel hint to read ahead. */
+extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count)
+ __THROW;
+
+__END_DECLS
diff --git a/libc/sysdeps/linux/x86_64/bits/mman.h b/libc/sysdeps/linux/x86_64/bits/mman.h
index c25900372..b1a8b93d3 100644
--- a/libc/sysdeps/linux/x86_64/bits/mman.h
+++ b/libc/sysdeps/linux/x86_64/bits/mman.h
@@ -1,5 +1,5 @@
/* Definitions for POSIX memory map interface. Linux/x86_64 version.
- Copyright (C) 2001, 2003 Free Software Foundation, Inc.
+ Copyright (C) 2001, 2003, 2005, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -89,6 +89,7 @@
# define MADV_SEQUENTIAL 2 /* Expect sequential page references. */
# define MADV_WILLNEED 3 /* Will need these pages. */
# define MADV_DONTNEED 4 /* Don't need these pages. */
+# define MADV_REMOVE 5 /* Remove these pages and resources. */
#endif
/* The POSIX people had to invent similar names for the same things. */