From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752801AbbJQLdO (ORCPT ); Sat, 17 Oct 2015 07:33:14 -0400 Received: from aserp1040.oracle.com ([141.146.126.69]:29046 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752351AbbJQLdN (ORCPT ); Sat, 17 Oct 2015 07:33:13 -0400 Reply-To: sowmini.varadhan@oracle.com Subject: Re: [PATCH v2 net-next] RDS: fix rds-ping deadlock over TCP transport References: <1445048001-1086-1-git-send-email-santosh.shilimkar@oracle.com> To: Santosh Shilimkar , netdev@vger.kernel.org Cc: davem@davemloft.net, linux-kernel@vger.kernel.org, ssantosh@kernel.org From: Sowmini Varadhan Message-ID: <562231ED.40403@oracle.com> Date: Sat, 17 Oct 2015 07:33:01 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.2.0 MIME-Version: 1.0 In-Reply-To: <1445048001-1086-1-git-send-email-santosh.shilimkar@oracle.com> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Source-IP: userv0021.oracle.com [156.151.31.71] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 10/16/2015 10:13 PM, Santosh Shilimkar wrote: > > But because of above recursive lock hang with RDS TCP, > the send work from rds_send_pong() needs to deferred to > worker to avoid lock up. Given RDS ping is more of connectivity > test than performance critical path, its should be ok even > for transport like IB. > Acked-by: Sowmini Varadhan