diff --git a/libc/kernel/common/linux/pagemap.h b/libc/kernel/common/linux/pagemap.h
new file mode 100644
index 0000000..8dd397d
--- /dev/null
+++ b/libc/kernel/common/linux/pagemap.h
@@ -0,0 +1,33 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   structures, and macros generated from the original header, and thus,
+ ***   contains no copyrightable information.
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef _LINUX_PAGEMAP_H
+#define _LINUX_PAGEMAP_H
+
+#include <linux/mm.h>
+#include <linux/fs.h>
+#include <linux/list.h>
+#include <linux/highmem.h>
+#include <linux/compiler.h>
+#include <asm/uaccess.h>
+#include <linux/gfp.h>
+
+#define AS_EIO (__GFP_BITS_SHIFT + 0)  
+#define AS_ENOSPC (__GFP_BITS_SHIFT + 1)  
+
+#define PAGE_CACHE_SHIFT PAGE_SHIFT
+#define PAGE_CACHE_SIZE PAGE_SIZE
+#define PAGE_CACHE_MASK PAGE_MASK
+#define PAGE_CACHE_ALIGN(addr) (((addr)+PAGE_CACHE_SIZE-1)&PAGE_CACHE_MASK)
+#define page_cache_get(page) get_page(page)
+#define page_cache_release(page) put_page(page)
+
+#endif