bcachefs: Make an assertion more informative

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

diff --git a/fs/bcachefs/btree_iter.c b/fs/bcachefs/btree_iter.c
index e65c300ffe40acc3885f40674d04f6e1104fc6da..1650ba87ef03c12f704a6acfb4df9b719f3bab4a 100644 (file)
--- a/fs/bcachefs/btree_iter.c
+++ b/fs/bcachefs/btree_iter.c
@@ -2606,7 +2606,10 @@ static void __bch2_trans_iter_init(struct btree_trans *trans,
                                   unsigned depth,
                                   unsigned flags)
 {
-       EBUG_ON(trans->restarted);
+       if (trans->restarted)
+               panic("bch2_trans_iter_init(): in transaction restart, %s by %pS\n",
+                     bch2_err_str(trans->restarted),
+                     (void *) trans->last_restarted_ip);
 
        if (flags & BTREE_ITER_ALL_LEVELS)
                flags |= BTREE_ITER_ALL_SNAPSHOTS|__BTREE_ITER_ALL_SNAPSHOTS;