bcachefs: Prioritize fragmentation in bucket allocator

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

diff --git a/fs/bcachefs/alloc.c b/fs/bcachefs/alloc.c
index 82f27a57dc610291b8c2ef0beabc341a10ccf0d7..73c11f808edcdc77e3815b4149d1dd3c661d7257 100644 (file)
--- a/fs/bcachefs/alloc.c
+++ b/fs/bcachefs/alloc.c
@@ -610,7 +610,7 @@ static unsigned long bucket_sort_key(struct bch_fs *c, struct bch_dev *ca,
 
        return  (data_wantness << 9) |
                (needs_journal_commit << 8) |
-               bucket_gc_gen(ca, b);
+               (bucket_gc_gen(ca, b) / 16);
 }
 
 static inline int bucket_alloc_cmp(alloc_heap *h,