From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.9 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 06829C04EB8 for ; Mon, 10 Dec 2018 17:59:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A3B9F2081F for ; Mon, 10 Dec 2018 17:59:01 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A3B9F2081F Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=davemloft.net Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728486AbeLJR7A (ORCPT ); Mon, 10 Dec 2018 12:59:00 -0500 Received: from shards.monkeyblade.net ([23.128.96.9]:41114 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726959AbeLJR7A (ORCPT ); Mon, 10 Dec 2018 12:59:00 -0500 Received: from localhost (unknown [IPv6:2601:601:9f80:35cd::bf5]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) (Authenticated sender: davem-davemloft) by shards.monkeyblade.net (Postfix) with ESMTPSA id 4338014732B37; Mon, 10 Dec 2018 09:58:59 -0800 (PST) Date: Mon, 10 Dec 2018 09:58:56 -0800 (PST) Message-Id: <20181210.095856.580441946779980596.davem@davemloft.net> To: fw@strlen.de Cc: syzbot+592df0494801b6648ec6@syzkaller.appspotmail.com, herbert@gondor.apana.org.au, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, steffen.klassert@secunet.com, syzkaller-bugs@googlegroups.com Subject: Re: INFO: rcu detected stall in xfrm_hash_rebuild From: David Miller In-Reply-To: <20181210124724.iuver2va3yjdsokf@breakpoint.cc> References: <00000000000075fe86057ca6367e@google.com> <20181210124724.iuver2va3yjdsokf@breakpoint.cc> X-Mailer: Mew version 6.8 on Emacs 26.1 Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Mon, 10 Dec 2018 09:58:59 -0800 (PST) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Florian Westphal Date: Mon, 10 Dec 2018 13:47:24 +0100 > After recent tree conversion, we could probably make the exact policies > part of the 'inexact tree' (which would be renamed to 'policy tree' or > some such). > > Special-casing the exact policies made a lot of sense when we had > a single list for the inexact policies (to keep its length down). > > But now I think we could try to unify all of this and only maintain > the existing tree-based storage. > > Would also remove the need to do lookups in two different > data structures (bydst-hash-then-inexact-tree). > > What do you think? I think this makes a lot of sense.