From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754752AbcK2Abg (ORCPT ); Mon, 28 Nov 2016 19:31:36 -0500 Received: from ozlabs.org ([103.22.144.67]:49469 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752654AbcK2Ab2 (ORCPT ); Mon, 28 Nov 2016 19:31:28 -0500 Date: Tue, 29 Nov 2016 11:31:26 +1100 From: Stephen Rothwell To: David Miller , Networking Cc: linux-next@vger.kernel.org, linux-kernel@vger.kernel.org, Daniel Borkmann Subject: linux-next: manual merge of the net-next tree with the net tree Message-ID: <20161129113126.2626e7fe@canb.auug.org.au> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi all, Today's linux-next merge of the net-next tree got a conflict in: net/sched/cls_flower.c between commit: d936377414fa ("net, sched: respect rcu grace period on cls destruction") from the net tree and commit: 13fa876ebd03 ("net/sched: cls_flower: merge filter delete/destroy common code") from the net-next tree. I fixed it up (see below) and can carry the fix as necessary. This is now fixed as far as linux-next is concerned, but any non trivial conflicts should be mentioned to your upstream maintainer when your tree is submitted for merging. You may also want to consider cooperating with the maintainer of the conflicting tree to minimise any particularly complex conflicts. -- Cheers, Stephen Rothwell diff --cc net/sched/cls_flower.c index b296f3991ab2,e8dd09af0d0c..000000000000 --- a/net/sched/cls_flower.c +++ b/net/sched/cls_flower.c @@@ -273,24 -272,14 +276,32 @@@ static void fl_hw_update_stats(struct t dev->netdev_ops->ndo_setup_tc(dev, tp->q->handle, tp->protocol, &tc); } +static void fl_destroy_sleepable(struct work_struct *work) +{ + struct cls_fl_head *head = container_of(work, struct cls_fl_head, + work); + if (head->mask_assigned) + rhashtable_destroy(&head->ht); + kfree(head); + module_put(THIS_MODULE); +} + +static void fl_destroy_rcu(struct rcu_head *rcu) +{ + struct cls_fl_head *head = container_of(rcu, struct cls_fl_head, rcu); + + INIT_WORK(&head->work, fl_destroy_sleepable); + schedule_work(&head->work); +} + + static void __fl_delete(struct tcf_proto *tp, struct cls_fl_filter *f) + { + list_del_rcu(&f->list); + fl_hw_destroy_filter(tp, (unsigned long)f); + tcf_unbind_filter(tp, &f->res); + call_rcu(&f->rcu, fl_destroy_filter); + } + static bool fl_destroy(struct tcf_proto *tp, bool force) { struct cls_fl_head *head = rtnl_dereference(tp->root); @@@ -299,14 -288,12 +310,11 @@@ if (!force && !list_empty(&head->filters)) return false; - list_for_each_entry_safe(f, next, &head->filters, list) { - fl_hw_destroy_filter(tp, (unsigned long)f); - list_del_rcu(&f->list); - call_rcu(&f->rcu, fl_destroy_filter); - } + list_for_each_entry_safe(f, next, &head->filters, list) + __fl_delete(tp, f); - RCU_INIT_POINTER(tp->root, NULL); - if (head->mask_assigned) - rhashtable_destroy(&head->ht); - kfree_rcu(head, rcu); + + __module_get(THIS_MODULE); + call_rcu(&head->rcu, fl_destroy_rcu); return true; }