[PATCH] removes posix option of fat (3/5)

This removes the posix option of vfat. The current posix options works
only as an alias of name_check=s.

Documentation/filesystems/vfat.txt

@@ -31,10 +31,6 @@ uni_xlate=<bool> -- Translate unhandled Unicode characters to special
 		 illegal on the vfat filesystem.  The escape sequence
 		 that gets used is ':' and the four digits of hexadecimal
 		 unicode.
-posix=<bool>  -- Allow names of same letters, different case such as
-                 'LongFileName' and 'longfilename' to coexist.  This has some
-                 problems currently because 8.3 conflicts are not handled
-                 correctly for POSIX filesystem compliance.
 nonumtail=<bool> -- When creating 8.3 aliases, normally the alias will
                  end in '~1' or tilde followed by some number.  If this
                  option is set, then if the filename is 
@@ -66,10 +62,6 @@ TODO
   a get next directory entry approach.  The only thing left that uses
   raw scanning is the directory renaming code.
 
-* Fix the POSIX filesystem support to work in 8.3 space.  This involves
-  renaming aliases if a conflict occurs between a new filename and
-  an old alias.  This is quite a mess.
-
 
 POSSIBLE PROBLEMS
 ----------------------------------------------------------------------

fs/fat/inode.c

@@ -236,7 +236,7 @@ static int parse_options(char *options, int is_vfat, int *debug,
 	opts->name_check = 'n';
 	opts->conversion = 'b';
 	opts->quiet = opts->showexec = opts->sys_immutable = opts->dotsOK =  0;
-	opts->utf8 = opts->unicode_xlate = opts->posixfs = 0;
+	opts->utf8 = opts->unicode_xlate = 0;
 	opts->numtail = 1;
 	opts->nocase = 0;
 	*debug = 0;
@@ -383,8 +383,8 @@ static int parse_options(char *options, int is_vfat, int *debug,
 			if (ret) opts->unicode_xlate = val;
 		}
 		else if (is_vfat && !strcmp(this_char,"posix")) {
-			ret = simple_getbool(value, &val);
-			if (ret) opts->posixfs = val;
+			printk("FAT: posix option is obsolete, "
+			       "not supported now\n");
 		}
 		else if (is_vfat && !strcmp(this_char,"nonumtail")) {
 			ret = simple_getbool(value, &val);
@@ -417,8 +417,6 @@ static int parse_options(char *options, int is_vfat, int *debug,
 			break;
 	}
 out:
-	if (opts->posixfs)
-		opts->name_check = 's';
 	if (opts->unicode_xlate)
 		opts->utf8 = 0;
 	

include/linux/msdos_fs_sb.h

@@ -22,7 +22,6 @@ struct fat_mount_options {
 		 isvfat:1,        /* 0=no vfat long filename support, 1=vfat support */
 		 utf8:1,	  /* Use of UTF8 character set (Default) */
 		 unicode_xlate:1, /* create escape sequences for unhandled Unicode */
-		 posixfs:1,       /* Allow names like makefile and Makefile to coexist */
 		 numtail:1,       /* Does first alias have a numeric '~1' type tail? */
 		 atari:1,         /* Use Atari GEMDOS variation of MS-DOS fs */
 		 nocase:1;	  /* Does this need case conversion? 0=need case conversion*/