Return-Path: linux-nfs-owner@vger.kernel.org Received: from mx2.netapp.com ([216.240.18.37]:37417 "EHLO mx2.netapp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751257Ab1LORZk convert rfc822-to-8bit (ORCPT ); Thu, 15 Dec 2011 12:25:40 -0500 Message-ID: <1323969923.14317.31.camel@lade.trondhjem.org> Subject: Re: copy offload support in Linux - new system call needed? From: Trond Myklebust To: Ric Wheeler Cc: "Loke, Chetan" , "J. Bruce Fields" , Al Viro , linux-scsi@vger.kernel.org, linux-fsdevel , Hannes Reinecke , Andrew Morton , linux-nfs@vger.kernel.org, Joel Becker , James Bottomley Date: Thu, 15 Dec 2011 12:25:23 -0500 In-Reply-To: <4EEA2BF7.5030107@gmail.com> References: <4EE8F75F.6070800@gmail.com> <20111214192739.GN2203@ZenIV.linux.org.uk> <4EE8FC2E.3010207@gmail.com> <20111214222723.GD7623@fieldses.org> <1323961140.14317.2.camel@lade.trondhjem.org> <1323965498.14317.13.camel@lade.trondhjem.org> <1323968015.14317.28.camel@lade.trondhjem.org> <4EEA2BF7.5030107@gmail.com> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Sender: linux-nfs-owner@vger.kernel.org List-ID: On Thu, 2011-12-15 at 12:18 -0500, Ric Wheeler wrote: > What I would like to see is a way to make sure that we can interrupt any long > running command & also make sure that our timeouts (for SCSI specifically) are > not too aggressive. The draft NFSv4.2 protocol contains features to make interruption possible, so as far as the NFS client is concerned, that should be doable. I can't answer for CIFS or SCSI... Cheers Trond -- Trond Myklebust Linux NFS client maintainer NetApp Trond.Myklebust@netapp.com www.netapp.com