bcachefs: Optimize bch2_btree_iter_verify_level()

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

diff --git a/fs/bcachefs/btree_iter.c b/fs/bcachefs/btree_iter.c
index 97d8060..073157f 100644 (file)
--- a/fs/bcachefs/btree_iter.c
+++ b/fs/bcachefs/btree_iter.c
@@ -492,9 +492,9 @@ static void bch2_btree_iter_verify_cached(struct btree_iter *iter)
 static void bch2_btree_iter_verify_level(struct btree_iter *iter,
                                         unsigned level)
 {
-       struct btree_iter_level *l = &iter->l[level];
-       struct btree_node_iter tmp = l->iter;
-       bool locked = btree_node_locked(iter, level);
+       struct btree_iter_level *l;
+       struct btree_node_iter tmp;
+       bool locked;
        struct bkey_packed *p, *k;
        char buf1[100], buf2[100], buf3[100];
        const char *msg;
@@ -502,6 +502,10 @@ static void bch2_btree_iter_verify_level(struct btree_iter *iter,
        if (!bch2_debug_check_iterators)
                return;
 
+       l       = &iter->l[level];
+       tmp     = l->iter;
+       locked  = btree_node_locked(iter, level);
+
        if (btree_iter_type(iter) == BTREE_ITER_CACHED) {
                if (!level)
                        bch2_btree_iter_verify_cached(iter);