bucket_gc_gen 80 drivers/md/bcache/alloc.c ca->set->need_gc = max(ca->set->need_gc, bucket_gc_gen(b)); bucket_gc_gen 128 drivers/md/bcache/alloc.c return bucket_gc_gen(b) < BUCKET_GC_GEN_MAX; bucket_gc_gen 1813 drivers/md/bcache/btree.c c->need_gc = max(c->need_gc, bucket_gc_gen(b));