From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Burakov, Anatoly" Subject: Re: [PATCH v3] bus/vdev: replace device list lock by a recursive one Date: Tue, 22 May 2018 14:34:49 +0100 Message-ID: <8ac95032-f1e3-d762-2cf5-803ad78bb2bb@intel.com> References: <2833093.uzJjkH71XI@xps> <20180522113727.3116-1-thomas@monjalon.net> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Cc: matan@mellanox.com, ferruh.yigit@intel.com, gaetan.rivet@6wind.com To: Thomas Monjalon , dev@dpdk.org Return-path: Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by dpdk.org (Postfix) with ESMTP id 2C2382BD8 for ; Tue, 22 May 2018 15:34:55 +0200 (CEST) In-Reply-To: <20180522113727.3116-1-thomas@monjalon.net> Content-Language: en-US List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" On 22-May-18 12:37 PM, Thomas Monjalon wrote: > A device like failsafe can manage sub-devices. > When removing such device, it removes its sub-devices > and try to take the same vdev_device_list_lock. > It was causing a deadlock because the lock was not recursive. > > Fixes: 35f462839b69 ("bus/vdev: add lock on device list") > > Suggested-by: Anatoly Burakov > Signed-off-by: Thomas Monjalon > --- > v3: try recursive lock > WARNING: not yet tested! > --- LGTM Acked-by: Anatoly Burakov -- Thanks, Anatoly