bcachefs: More btree gc refactorings

more prep work for erasure coding

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2018-11-12 17:26:36 -05:00 • committed by Kent Overstreet
commit 91f8b5677b
2 changed files with 97 additions and 78 deletions