Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753473AbYLTHny (ORCPT ); Sat, 20 Dec 2008 02:43:54 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752388AbYLTHnm (ORCPT ); Sat, 20 Dec 2008 02:43:42 -0500 Received: from gw.goop.org ([64.81.55.164]:52165 "EHLO mail.goop.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752243AbYLTHnk (ORCPT ); Sat, 20 Dec 2008 02:43:40 -0500 Message-ID: <494CA226.9000200@goop.org> Date: Fri, 19 Dec 2008 23:43:34 -0800 From: Jeremy Fitzhardinge User-Agent: Thunderbird 2.0.0.18 (X11/20081119) MIME-Version: 1.0 To: Herbert Xu CC: Evgeniy Polyakov , Vladislav Bolkhovitin , linux-scsi@vger.kernel.org, James Bottomley , Andrew Morton , FUJITA Tomonori , Mike Christie , Jeff Garzik , Boaz Harrosh , Linus Torvalds , linux-kernel@vger.kernel.org, scst-devel@lists.sourceforge.net, Bart Van Assche , "Nicholas A. Bellinger" , netdev@vger.kernel.org, Rusty Russell , David Miller Subject: Re: [PATCH][RFC 23/23]: Support for zero-copy TCP transmit of user space data References: <494009D7.4020602@vlnb.net> <494012C4.7090304@vlnb.net> <494C0255.8010208@goop.org> <20081219220452.GB704@ioremap.net> <494C1E5E.7070809@goop.org> <20081219223314.GA2736@ioremap.net> <494C50BB.5030809@goop.org> <20081220020250.GA15064@gondor.apana.org.au> <494C8D57.7040808@goop.org> <20081220065105.GA16936@gondor.apana.org.au> In-Reply-To: <20081220065105.GA16936@gondor.apana.org.au> X-Enigmail-Version: 0.95.6 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 541 Lines: 17 Herbert Xu wrote: >> If so, how can it be solved? >> > > Well since each individual page can be pulled out I think you > just have to track them. > Hm. So if I get a destructor call from the shared_info, can I go an inspect the page refcounts to see if its really the last use? J -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/