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 75C1EC433F5 for ; Mon, 1 Nov 2021 20:28:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 52E4861077 for ; Mon, 1 Nov 2021 20:28:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229712AbhKAUas (ORCPT ); Mon, 1 Nov 2021 16:30:48 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:30576 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229560AbhKAUar (ORCPT ); Mon, 1 Nov 2021 16:30:47 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1635798492; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=52xg5V+afrN7aMS4Vl01yxpXugZhZkBU3cHVpY6lNZk=; b=fDqbF5VtRWmSVCfhYGVx5RLKJTBvNvhylUujLpJCLxBYEQ1T4aG8vDRmFVrXBoAESrqQWT SxUyhC1eL9NxmDjYjtaJLcKuR7zHlCY8VlvRj2ktYiPt2Q67MaKRhRFJAOjCvkHW5p8Qfs UjVrBxz6JTSfacJdjsKf93gcT4uOT6g= Received: from mail-qv1-f72.google.com (mail-qv1-f72.google.com [209.85.219.72]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-562-c3NkYI6rOFid2R4-CC7ayw-1; Mon, 01 Nov 2021 16:28:12 -0400 X-MC-Unique: c3NkYI6rOFid2R4-CC7ayw-1 Received: by mail-qv1-f72.google.com with SMTP id ib13-20020a0562141c8d00b003958b43bcf2so11337858qvb.1 for ; Mon, 01 Nov 2021 13:28:11 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:subject :content-language:to:cc:references:from:in-reply-to :content-transfer-encoding; bh=52xg5V+afrN7aMS4Vl01yxpXugZhZkBU3cHVpY6lNZk=; b=VRsPvqphqEGonK/G+9u5vIq/qZYxMJfKGpKpeaXfkaZZOCVSxUKHZYdiIYiFziojKU aVkaUcn1SKnTjrUYG1TteV++Jd0Fg8+B5EtLu2Tp4aJuEcqRZvFSClWSCC0QBUhxYuCj PUJvgmVrMSQTF6a73II8ln50mvcOalq/3puPlpmlPJll9xxFInE/ra6ZAfNu6lqHbO0p pmRcAcZLXcI4uf/IK0nktSZ8nuMSUW81y+fVR6mUPUE/qRI3e9jzQj0wsiJzkqx8av6g 5x+HMftv5sGCKvn+JkB3MwgYHyMbYR+E9LDNVybAbfVEmwBBrAIxqd53qDYiM9+yQUAe 7x5Q== X-Gm-Message-State: AOAM5334wQ+fUMugFvHh8vaD5t0VG+aqIiJY5mqbbzhKP+f/En51UPob sdKAEC5YymZ4t6YqkG7R2U5n0eriXSM0hsv08Tc3uwELyXqs5i6qye18jahBwAa+A5VWo0MKysF kzWTfpxQH1IuBRA1fYgEo X-Received: by 2002:a05:6214:2606:: with SMTP id gu6mr27104991qvb.30.1635798491377; Mon, 01 Nov 2021 13:28:11 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzaRvdhgQavt0/7WcQjt/7mb1ZIFw7v/9VBd25GwZHV+2mwpMqIXzyU96Ktw8HrVnV6rI7Ufw== X-Received: by 2002:a05:6214:2606:: with SMTP id gu6mr27104979qvb.30.1635798491205; Mon, 01 Nov 2021 13:28:11 -0700 (PDT) Received: from [172.31.1.6] ([70.105.245.20]) by smtp.gmail.com with ESMTPSA id f3sm8924012qtf.55.2021.11.01.13.28.10 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 01 Nov 2021 13:28:10 -0700 (PDT) Message-ID: Date: Mon, 1 Nov 2021 16:28:10 -0400 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.2.0 Subject: Re: [PATCH 0/1] Enable inter server to server copies on a export Content-Language: en-US To: Bruce Fields Cc: Chuck Lever III , Linux NFS Mailing List 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> <20211101192606.GC14427@fieldses.org> From: Steve Dickson In-Reply-To: <20211101192606.GC14427@fieldses.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org On 11/1/21 15:26, Bruce Fields wrote: > 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. Sorry I did miss the patch part of the email... Does it make sense to document both nfs and nfsd module parameters in a couple man pages? steved.