From a74711492d19b076f3daa80da66ace4580c22b3c Mon Sep 17 00:00:00 2001
From: charles <charles>
Date: Thu, 28 Aug 2008 02:42:11 +0000
Subject: [PATCH] Add kmap for highmem access

---
 yaffs_fs.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/yaffs_fs.c b/yaffs_fs.c
index 2d0f8a0..2672c45 100644
--- a/yaffs_fs.c
+++ b/yaffs_fs.c
@@ -32,7 +32,7 @@
  */
 
 const char *yaffs_fs_c_version =
-    "$Id: yaffs_fs.c,v 1.68 2008-07-23 03:35:12 charles Exp $";
+    "$Id: yaffs_fs.c,v 1.69 2008-08-28 02:42:11 charles Exp $";
 extern const char *yaffs_guts_c_version;
 
 #include <linux/version.h>
@@ -714,13 +714,17 @@ static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset,
 			      unsigned to)
 {
 
-	void *addr = page_address(pg) + offset;
+	void *addr, *kva;
+	
 	loff_t pos = (((loff_t) pg->index) << PAGE_CACHE_SHIFT) + offset;
 	int nBytes = to - offset;
 	int nWritten;
 
 	unsigned spos = pos;
 	unsigned saddr = (unsigned)addr;
+	
+	kva=kmap(pg);
+	addr = kva + offset;
 
 	T(YAFFS_TRACE_OS,
 	  (KERN_DEBUG "yaffs_commit_write addr %x pos %x nBytes %d\n", saddr,
@@ -739,6 +743,8 @@ static int yaffs_commit_write(struct file *f, struct page *pg, unsigned offset,
 		SetPageUptodate(pg);
 	}
 
+	kunmap(pg);
+
 	T(YAFFS_TRACE_OS,
 	  (KERN_DEBUG "yaffs_commit_write returning %d\n",
 	   nWritten == nBytes ? 0 : nWritten));
-- 
2.30.2