vfat: change the default from shortname=lower to shortname=mixed

Because, with "shortname=lower", copying one FAT filesystem tree to
another FAT filesystem tree using Linux results in semantically
different filesystems. (E.g.: Filenames which were once "all
uppercase" are now "all lowercase").

So, this changes the default of "shortname=lower" to "shortname=mixed".

Signed-off-by: Paul Wise <pabs3@bonedaddy.net>
[change fat_show_options()]
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
diff --git a/Documentation/filesystems/vfat.txt b/Documentation/filesystems/vfat.txt
index b58b84b..eed520f 100644
--- a/Documentation/filesystems/vfat.txt
+++ b/Documentation/filesystems/vfat.txt
@@ -102,7 +102,7 @@
 		 winnt: emulate the Windows NT rule for display/create.
 		 mixed: emulate the Windows NT rule for display,
 			emulate the Windows 95 rule for create.
-		 Default setting is `lower'.
+		 Default setting is `mixed'.
 
 tz=UTC        -- Interpret timestamps as UTC rather than local time.
                  This option disables the conversion of timestamps
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 8970d8c..63a5c1a 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -820,7 +820,7 @@
 			seq_puts(m, ",shortname=mixed");
 			break;
 		case VFAT_SFN_DISPLAY_LOWER | VFAT_SFN_CREATE_WIN95:
-			/* seq_puts(m, ",shortname=lower"); */
+			seq_puts(m, ",shortname=lower");
 			break;
 		default:
 			seq_puts(m, ",shortname=unknown");
@@ -971,7 +971,7 @@
 	opts->codepage = fat_default_codepage;
 	opts->iocharset = fat_default_iocharset;
 	if (is_vfat) {
-		opts->shortname = VFAT_SFN_DISPLAY_LOWER|VFAT_SFN_CREATE_WIN95;
+		opts->shortname = VFAT_SFN_DISPLAY_WINNT|VFAT_SFN_CREATE_WIN95;
 		opts->rodir = 0;
 	} else {
 		opts->shortname = 0;