Many files:

Many files:
  ext2fs.h: Remove definition of ext2fs_sb.  Note: this may break source
  	(but not binary) compatibility of some users of the ext2 library.
  	They should just simply do a global search and replace of struct
  	ext2fs_sb with struct ext2_super_block, and use their own private copy
  	of ext2_fs.h if they aren't already.
  closefs.c, initialize.c, link.c, newdir.c, openfs.c, swapfs.c: Replace
  	use of ext2fs_sb with ext2_super_block.
ChangeLog, main.c:
  main.c (main): Replace use of struct ext2fs_sb with struct ext2_super_block.