[Xbox-linux-cvs] kernel/fs/fatx cache.c,1.3,1.4

[Thomas P. <sh...@us...>]

Update of /cvsroot/xbox-linux/kernel/fs/fatx
In directory sc8-pr-cvs10.sourceforge.net:/tmp/cvs-serv3285/fs/fatx

Modified Files:
	cache.c 
Log Message:
Make Linux created FatX file compatible with MS kernel created FatX files.


Index: cache.c
===================================================================
RCS file: /cvsroot/xbox-linux/kernel/fs/fatx/cache.c,v
retrieving revision 1.3
retrieving revision 1.4
diff -u -d -r1.3 -r1.4
--- cache.c	17 Dec 2005 23:36:24 -0000	1.3
+++ cache.c	22 Sep 2007 18:37:41 -0000	1.4
@@ -2,7 +2,8 @@
  *  linux/fs/fatx/cache.c
  *
  *  Written 2003 by Edgar Hucek and Lehner Franz
- *
+ *  Updated 22-Sept-2007 by Thomas Pedley:
+ *        Fix invalid final cluster in files: 0xfffffff8 -> 0xffffffff
  */
 
 #include <linux/fatx_fs.h>
@@ -60,9 +61,13 @@
 	PRINTK("FATX: fatx_access: 0x%x, nr=0x%x, first=0x%x, next=0x%x\n", b, nr, first, next);
 	if (new_value != -1) {
 		if (FATX_SB(sb)->fat_bits == 32) {
+			// Fix invalid linux FatX final file cluster for 32bit FSes.
+			if (new_value == (int)0xfffffff8) new_value = (int)0xffffffff; 
 			((__u32 *)bh->b_data)[(first & (sb->s_blocksize - 1)) >> 2]
 				= cpu_to_fs32(sb, new_value);
 		} else if (FATX_SB(sb)->fat_bits == 16) {
+			// Fix invalid Linux FatX final file cluster for 16bit FSes.
+			if (new_value == 0xfff8) new_value = 0xffff; 
 			((__u16 *)bh->b_data)[(first & (sb->s_blocksize - 1)) >> 1]
 				= cpu_to_fs16(sb, new_value);
 		}