Commit 81ea0106 authored by Florian Westphal's avatar Florian Westphal

netfilter: nf_tables: add rescheduling points during loop detection walks

Add explicit rescheduling points during ruleset walk.

Switching to a faster algorithm is possible but this is a much
smaller change, suitable for nf tree.

Link: https://bugzilla.netfilter.org/show_bug.cgi?id=1460Signed-off-by: default avatarFlorian Westphal <fw@strlen.de>
Acked-by: default avatarPablo Neira Ayuso <pablo@netfilter.org>
parent 99a63d36
......@@ -3340,6 +3340,8 @@ int nft_chain_validate(const struct nft_ctx *ctx, const struct nft_chain *chain)
if (err < 0)
return err;
}
cond_resched();
}
return 0;
......@@ -9367,9 +9369,13 @@ static int nf_tables_check_loops(const struct nft_ctx *ctx,
break;
}
}
cond_resched();
}
list_for_each_entry(set, &ctx->table->sets, list) {
cond_resched();
if (!nft_is_active_next(ctx->net, set))
continue;
if (!(set->flags & NFT_SET_MAP) ||
......
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