add filesystem subtype support

[pandora-kernel.git] / include / linux / fs.h

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 986b5d5..527a09a 100644 (file)
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -92,6 +92,7 @@ extern int dir_notify_enable;
 /* public flags for file_system_type */
 #define FS_REQUIRES_DEV 1 
 #define FS_BINARY_MOUNTDATA 2
+#define FS_HAS_SUBTYPE 4
 #define FS_REVAL_DOT   16384   /* Check the paths ".", ".." for staleness */
 #define FS_RENAME_DOES_D_MOVE  32768   /* FS will handle d_move()
                                         * during rename() internally.
@@ -961,6 +962,12 @@ struct super_block {
        /* Granularity of c/m/atime in ns.
           Cannot be worse than a second */
        u32                s_time_gran;
+
+       /*
+        * Filesystem subtype.  If non-empty the filesystem type field
+        * in /proc/mounts will be "type.subtype"
+        */
+       char *s_subtype;
 };
 
 extern struct timespec current_fs_time(struct super_block *sb);