Hi,
Relocation caches extent backrefs in an rbtree (the 'backref cache'). The
following patches move the backref cache code out of relocation.c and into
it's own file. We then do a straight-forward cleanup the main backref cache
function, build_backref_tree(). No functionality is changed in these
patches.
These patches are part of a larger series I have, which speeds up qgroup
accounting by using the same backref cache facility. That series is not
quite ready, however I wanted to see about getting these cleanup patches
upstreamed as they are nicely self contained and benefit the readability of
the code.
All feedback is appreciated.
--Mark
