From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH v2] rhashtable: add restart routine in rhashtable_free_and_destroy() Date: Mon, 09 Jul 2018 16:29:51 -0700 (PDT) Message-ID: <20180709.162951.1992757585184071006.davem@davemloft.net> References: <20180708025551.25879-1-ap420073@gmail.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: tgraf@suug.ch, herbert@gondor.apana.org.au, netdev@vger.kernel.org, fw@strlen.de, pablo@netfilter.org To: ap420073@gmail.com Return-path: Received: from shards.monkeyblade.net ([23.128.96.9]:53472 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932688AbeGIX3w (ORCPT ); Mon, 9 Jul 2018 19:29:52 -0400 In-Reply-To: <20180708025551.25879-1-ap420073@gmail.com> Sender: netdev-owner@vger.kernel.org List-ID: From: Taehee Yoo Date: Sun, 8 Jul 2018 11:55:51 +0900 > rhashtable_free_and_destroy() cancels re-hash deferred work > then walks and destroys elements. at this moment, some elements can be > still in future_tbl. that elements are not destroyed. > > test case: > nft_rhash_destroy() calls rhashtable_free_and_destroy() to destroy > all elements of sets before destroying sets and chains. > But rhashtable_free_and_destroy() doesn't destroy elements of future_tbl. > so that splat occurred. > > test script: ... > Splat looks like: ... > V2: > - free all tables requested by Herbert Xu > > Signed-off-by: Taehee Yoo Applied and queued up for -stable.