From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 04E0CC433EF for ; Mon, 1 Nov 2021 19:26:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DF78860FC4 for ; Mon, 1 Nov 2021 19:26:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232600AbhKAT2k (ORCPT ); Mon, 1 Nov 2021 15:28:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39032 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231820AbhKAT2k (ORCPT ); Mon, 1 Nov 2021 15:28:40 -0400 Received: from fieldses.org (fieldses.org [IPv6:2600:3c00:e000:2f7::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 85D87C061714 for ; Mon, 1 Nov 2021 12:26:06 -0700 (PDT) Received: by fieldses.org (Postfix, from userid 2815) id 2567B7045; Mon, 1 Nov 2021 15:26:06 -0400 (EDT) DKIM-Filter: OpenDKIM Filter v2.11.0 fieldses.org 2567B7045 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fieldses.org; s=default; t=1635794766; bh=/viBnHPtNMz+L7xrFeIWguhrW2QOg0iMf+GTglrv5fc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Mi7ZbEO6Y5fZBiGvNQRumlLRP4MtNdC0s3DqlAPQzUZs4X0kewwUH5Y8NcateZVUn aEoCqM3qPBIXInVtNVbQmhyszZCldOwquA92aWfKKBeCnIdkVLrQgY2F7xMQtUYHTU hGSn/zInN41JGT4zHHpwReTL5648oLimYBPNlB+s= Date: Mon, 1 Nov 2021 15:26:06 -0400 From: Bruce Fields To: Steve Dickson Cc: Chuck Lever III , Linux NFS Mailing List Subject: Re: [PATCH 0/1] Enable inter server to server copies on a export Message-ID: <20211101192606.GC14427@fieldses.org> References: <20211029134534.GA19967@fieldses.org> <3e928624-6a7a-8583-7ea4-4eef9c22488e@redhat.com> <20211029164058.GE19967@fieldses.org> <65b31c94-54aa-5035-546c-75eb0048ba96@redhat.com> <20211029191435.GI19967@fieldses.org> <20211101154046.GA12965@fieldses.org> <93DAB7C7-D0BB-48BA-9BFF-2821D88582EA@oracle.com> <20211101183916.GA14427@fieldses.org> <79e55dad-7f34-3723-98b0-7c2ef7be9355@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <79e55dad-7f34-3723-98b0-7c2ef7be9355@redhat.com> User-Agent: Mutt/1.5.21 (2010-09-15) Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org On Mon, Nov 01, 2021 at 03:10:31PM -0400, Steve Dickson wrote: > > > On 11/1/21 14:39, Bruce Fields wrote: > >diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt > >index 91ba391f9b32..14bc3f0b0149 100644 > >--- a/Documentation/admin-guide/kernel-parameters.txt > >+++ b/Documentation/admin-guide/kernel-parameters.txt > >@@ -3243,6 +3243,19 @@ > > driver. A non-zero value sets the minimum interval > > in seconds between layoutstats transmissions. > >+ nfsd.inter_copy_offload_enable = > >+ [NFSv4.2] When set to 1, the server will support > >+ server-to-server copies for which this server is > >+ the destination of the copy. > >+ > >+ nfsd.nfsd4_ssc_umount_timeout = > >+ [NFSv4.2] When used as the destination of a > >+ server-to-server copy, knfsd temporarily mounts > >+ the source server. It caches the mount in case > >+ it will be needed again, and discards it if not > >+ used for the number of milliseconds specified by > >+ this parameter. > >+ > > nfsd.nfs4_disable_idmapping= > > [NFSv4] When set to the default of '1', the NFSv4 > > server will return only numeric uids and gids to > >@@ -3250,6 +3263,7 @@ > > and gids from such clients. This is intended to ease > > migration from NFSv2/v3. > >+ > > nmi_backtrace.backtrace_idle [KNL] > > Dump stacks even of idle CPUs in response to an > > NMI stack-backtrace request. > > > Interesting... I don't see these in the Linus tree I'm looking at [1] > find Documentation/ -type f | xargs grep -i inter_copy_offload_enable I was suggesting that as a patch. It's queued up for 5.16 now. --b.