From mboxrd@z Thu Jan 1 00:00:00 1970 From: James Smart Subject: Re: [RFC] Netlink and user-space buffer pointers Date: Wed, 19 Apr 2006 13:08:55 -0400 Message-ID: <44466EA7.3030206@emulex.com> References: <1145306661.4151.0.camel@localhost.localdomain> <20060418160121.GA2707@us.ibm.com> <444633B5.5030208@emulex.com> <444663A9.9020502@trash.net> Reply-To: James.Smart@Emulex.Com Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: linux-scsi@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Return-path: Received: from emulex.emulex.com ([138.239.112.1]:62949 "EHLO emulex.emulex.com") by vger.kernel.org with ESMTP id S1750981AbWDSRJA (ORCPT ); Wed, 19 Apr 2006 13:09:00 -0400 To: Patrick McHardy In-Reply-To: <444663A9.9020502@trash.net> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Patrick McHardy wrote: > This might be problematic, since there is a shared receive-queue in > the kernel netlink message might get processed in the context of > a different process. I didn't find any spots where ISCSI passes > pointers over netlink, can you point me to it? Please explain... Would the pid be set erroneously as well ? Ignoring the kernel-user space pointer issue, we're going to have a tight pid + request_id relationship being maintained across multiple messages. We'll also be depending on the pid events for clean up if an app dies. So I hope pid is consistent. -- james s