bcachefs: assert that online_reserved == 0 on shutdown

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

diff --git a/fs/bcachefs/super.c b/fs/bcachefs/super.c
index 64fa76788ed1e8cff179a038af8b4dd73cf968b4..adad2a7036295bf9034ccdebd320e64c03eed6d2 100644 (file)
--- a/fs/bcachefs/super.c
+++ b/fs/bcachefs/super.c
@@ -573,6 +573,7 @@ static void __bch2_fs_free(struct bch_fs *c)
        BUG_ON(atomic_read(&c->journal_keys.ref));
        bch2_fs_btree_write_buffer_exit(c);
        percpu_free_rwsem(&c->mark_lock);
+       EBUG_ON(percpu_u64_get(c->online_reserved));
        free_percpu(c->online_reserved);
 
        darray_exit(&c->btree_roots_extra);