1999-10-03 Roland McGrath <roland@baalperazim.frob.com>

	* ext2fs.h (test_bit, set_bit, clear_bit): Rewritten to operate on
	32-bit words instead of bytes.
	* ext2fs.h (group_desc): Inline function replaced with macro.
	(group_desc_image): New variable.
	* hyper.c (get_hypermetadata): Initialize it.
	* ext2fs.h (sblock_block): Declare new variable.
	(SBLOCK_LBLOCK): Macro removed.
	(SBLOCK_OFFS): Define in terms of sblock_block.
	* ext2fs.c (options): Add --sblock/-S.
	(parse_opt): Parse it to set sblock_block.
	* hyper.c (sblock_block): New variable.
	(get_hypermetadata): Use sblock_block instead of constant SBLOCK_BLOCK.
	* hyper.c (get_hypermetadata): Use EXT2_MAX_BLOCK_SIZE instead of
	hard-wired 8192.  Don't use ffs to compute log2_block_size, and don't
	check for the impossible case of non-power-of-two block size (the
	block size specification we start with is given as a power of two!).
	* ext2fs.h (block_size): Change type to unsigned int.
	(BLOCKSIZE_SCALE): Just use SBLOCK->s_log_block_size directly.
	* hyper.c (get_hypermetadata): Fix printf formats to silence warning.
	* dir.c (dirscanblock): Likewise.

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