From mboxrd@z Thu Jan 1 00:00:00 1970 From: Evgeniy Polyakov Subject: Re: [PATCH 2/8] [I/OAT] Driver for the Intel(R) I/OAT DMA engine Date: Sun, 12 Mar 2006 13:47:28 +0300 Message-ID: <20060312104728.GA25301@2ka.mipt.ru> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org Return-path: To: "Leech, Christopher" Content-Disposition: inline In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Fri, Mar 10, 2006 at 06:29:46PM -0800, Leech, Christopher (christopher.leech@intel.com) wrote: > From: Chris Leech [mailto:christopher.leech@intel.com] > Sent: Friday, March 10, 2006 6:29 PM > To: > Subject: [PATCH 2/8] [I/OAT] Driver for the Intel(R) I/OAT DMA engine > > > Adds a new ioatdma driver enumerate_dma_channels() is still broken, if it can not fail add NOFAIL gfp flag. And you play tricky games with common_node/device_node of struct dma_chan - one of that lists is never protected, while other is called under RCU and other locks (btw, why does insertion use RCU and deletion in dma_async_device_unregister() does not?). struct ioat_dma_chan - is it somewhere freed? -- Evgeniy Polyakov