Add linux patching readme, updated from YAFFS1

[yaffs2.git] / yportenv.h

diff --git a/yportenv.h b/yportenv.h
index e0727427ffc5c2a009a12c5773dc667d2baf7fde..b46b9a9367d3202f129018ac401ae90db81685da 100644 (file)
--- a/yportenv.h
+++ b/yportenv.h
@@ -1,9 +1,7 @@
 /*
- * YAFFS: Yet another FFS. A NAND-flash specific file system. 
- * yportenv.h: Portable services used by yaffs. This is done to allow
- * simple migration from kernel space into app space for testing.
+ * YAFFS: Yet another Flash File System . A NAND-flash specific file system. 
  *
- * Copyright (C) 2002 Aleph One Ltd.
+ * Copyright (C) 2002-2007 Aleph One Ltd.
  *   for Toby Churchill Ltd and Brightstar Engineering
  *
  * Created by Charles Manning <charles@aleph1.co.uk>
@@ -12,13 +10,10 @@
  * it under the terms of the GNU Lesser General Public License version 2.1 as
  * published by the Free Software Foundation.
  *
- *
  * Note: Only YAFFS headers are LGPL, YAFFS C code is covered by GPL.
- *
- * $Id: yportenv.h,v 1.10 2006-05-08 10:13:34 charles Exp $
- *
  */
 
+
 #ifndef __YPORTENV_H__
 #define __YPORTENV_H__
 
@@ -31,9 +26,11 @@
 #include "moduleconfig.h"
 
 /* Linux kernel */
+#include <linux/version.h>
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19))
 #include <linux/config.h>
+#endif
 #include <linux/kernel.h>
-#include <linux/version.h>
 #include <linux/mm.h>
 #include <linux/string.h>
 #include <linux/slab.h>
@@ -58,6 +55,10 @@
 #define YFREE(x)   kfree(x)
 #define YMALLOC_ALT(x) vmalloc(x)
 #define YFREE_ALT(x)   vfree(x)
+#define YMALLOC_DMA(x) YMALLOC(x)
+
+// KR - added for use in scan so processes aren't blocked indefinitely.
+#define YYIELD() schedule()
 
 #define YAFFS_ROOT_MODE                                0666
 #define YAFFS_LOSTNFOUND_MODE          0666