From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dominique Martinet Subject: Re: [PATCH 1/3] 9p/net: implement asynchronous rpc Date: Mon, 17 Dec 2018 12:01:11 +0100 Message-ID: <20181217110111.GB17466@nautica> References: <1544532108-21689-1-git-send-email-asmadeus@codewreck.org> <0da7d896-0d67-46f6-83f9-b346eba991a9@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Cc: v9fs-developer@lists.sourceforge.net, Dominique Martinet , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Eric Van Hensbergen , Latchesar Ionkov , Dmitry Vyukov To: Tomas Bortoli Return-path: Content-Disposition: inline In-Reply-To: <0da7d896-0d67-46f6-83f9-b346eba991a9@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Tomas Bortoli wrote on Mon, Dec 17, 2018: > sorry for the delay, I've been quite busy these days. No problem. > The patches looks good to me and should indeed speed up the code a bit. > I quickly tested them against Syzkaller tuned for the 9p subsystem and > everything seems fine. Thanks, can I add your Reviewed-by on all three? > And by the way, which refcount races? There's a problem with trans_fd read_work and cancelled callback; I'm not so sure about refcount but we can definitely get double list_del as we're not checking the status. I think when we incorrectly remove from the list we also mismanage the refcount, but honestly need to test.. -- Dominique