bcachefs: Convert bch2_replicas_gc2() to new accounting

bch2_replicas_gc2() is used for garbage collection superblock replicas
entries that are empty - this converts it to the new accounting scheme.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2024-02-12 15:21:10 -05:00
commit 00839addfc