> One such improvement has already been put on the table: remove the
> algorithm, and make it purely greedy.
OK, some digging had brought another one:
a) if it's first-level directory - get it the fsck out of root's cylinder
group.
b) if we just keep creating directories in a cylinder group and do not
create any files there - stop, it's no good (i.e. there's a limit on
number of back-to-back directory creations in the same group).
c) try putting it into the parent's CG, but reserve some number of inodes
and data blocks in it. If we can't - tough, get the fsck out of there.
but that's actually more about the older code in there) it seems to
be reasonable. It should solve the problem with fast-growth scenario
and it puts some effort to avoid nastiness with slow-growth one.
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