Return-Path: Received: from mail-oi0-f52.google.com ([209.85.218.52]:36734 "EHLO mail-oi0-f52.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750973AbbEFGP3 (ORCPT ); Wed, 6 May 2015 02:15:29 -0400 MIME-Version: 1.0 In-Reply-To: <1428703236-24735-1-git-send-email-zab@redhat.com> References: <1428703236-24735-1-git-send-email-zab@redhat.com> From: Michael Kerrisk Date: Wed, 6 May 2015 08:15:08 +0200 Message-ID: Subject: Re: [PATCH RFC 0/3] simple copy offloading system call To: Zach Brown Cc: Linux Kernel , Linux-Fsdevel , Linux btrfs Developers List , linux-nfs@vger.kernel.org, linux-scsi@vger.kernel.org, Linux API Content-Type: text/plain; charset=UTF-8 Sender: linux-nfs-owner@vger.kernel.org List-ID: [CC += linux-api@vger.kernel.org] Zach, Since this is a kernel-user-space API change, please CC linux-api@. The kernel source file Documentation/SubmitChecklist notes that all Linux kernel patches that change userspace interfaces should be CCed to linux-api@vger.kernel.org, so that the various parties who are interested in API changes are informed. For further information, see https://www.kernel.org/doc/man-pages/linux-api-ml.html Thanks, Michael On Sat, Apr 11, 2015 at 12:00 AM, Zach Brown wrote: > Hello everyone! > > Here's my current attempt at the most basic system call interface for > offloading copying between files. The system call and vfs function > are relatively light wrappers around the file_operation method that > does the heavy lifting. > > There was interest at LSF in getting the basic infrastructure merged > before worrying about adding behavioural flags and more complicated > implementations. This series only offers a refactoring of the btrfs > clone ioctl as an example of an implementation of the file > copy_file_range method. > > I've added support for copy_file_range() to xfs_io in xfsprogs and > have the start of an xfstest that tests the system call. I'll send > those to fstests@. > > So how does this look? > > Do we want to merge this and let the NFS and block XCOPY patches add > their changes when they're ready? > > - z > > -- > To unsubscribe from this list: send the line "unsubscribe linux-nfs" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Author of "The Linux Programming Interface", http://blog.man7.org/