[PATCH] 0/6 Fix e2fsprogs at 16T

e2fsprogs still has some problems at 16T, with type overflows, 
arithmetic overflows, and printf format problems.  Here's my attempt to 
get this fixed up - with this I can mkfs, mount, do IO, and e2fsck a 16T 
  (2^32-1 4096 byte blocks) ext3 filesystem on sparse loopback.

These patches are also available at:
http://people.redhat.com/esandeen/ext3/e2fsprogs-1.39-16T/

groups_count_overflow	# fix overflow in calculation of groups count
fix_loop_wraps		# Break out of loops when counters exceed 2^32-1
resize_resvd_overflow	# avoid overflow on new rsvd blocks on resize
group_desc_loops	# fix overflows in group_desc_count loop tests
unused_group_blocks	# remove some unused variables found above
fix_formats		# fix printf formats & some associated sizes

There may be more patches forthcoming, I've not tested as much 
functionality as I'd like to....

comments/reviews/more testing would be welcomed :)

-Eric

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