Revert "Revert "ext4: use atomic64_t for the per-flexbg free_clusters count""

This reverts commit 73d3c975426384e9fe6aa8024ec41591d5763d01.

Conflicts:
	fs/ext4/ialloc.c
ext4: fixup 64-bit divides in 3.0-stable backport of upstream fix

Replace C division operators with div64_u64 for divides introduced in:
commit 503f4bdcc078e7abee273a85ce322de81b18a224
ext4: use atomic64_t for the per-flexbg free_clusters count

Specific to the 3.0-stable backport of the upstream patch.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Reviewed-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: Christoph Biedl <linux-kernel.bfrz@manchmal.in-ulm.de>
Cc: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Added Jackpot's gitignore
A hack to get out of recovery. (dd if a normally-rebooting image to the param.blk)