From patchwork Mon Nov 30 22:03:13 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Trond Myklebust X-Patchwork-Id: 11941409 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9F75CC64E7B for ; Mon, 30 Nov 2020 22:04:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 370CE2076C for ; Mon, 30 Nov 2020 22:04:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="AEmiasZq" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726463AbgK3WEC (ORCPT ); Mon, 30 Nov 2020 17:04:02 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33796 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725893AbgK3WEC (ORCPT ); Mon, 30 Nov 2020 17:04:02 -0500 Received: from mail-qk1-x741.google.com (mail-qk1-x741.google.com [IPv6:2607:f8b0:4864:20::741]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 48F37C0613CF for ; Mon, 30 Nov 2020 14:03:22 -0800 (PST) Received: by mail-qk1-x741.google.com with SMTP id u4so12461166qkk.10 for ; Mon, 30 Nov 2020 14:03:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=+BRei2E7Nvobh7kFz2MVHgmPHzHXWzwfZ7PzmhWpKCU=; b=AEmiasZqnyG25y++J5bXUPltLqgUvmhT9bCMjBQFRYYbMRM0mwJTsokRE9Om9JAApe vS9/UAxDTL3GUZYCR9TrJUZYQuvfnNDxIzHMh2X9ma6PcJIE7sI4lZXZ/shEbuNt5ogv CxHAmpscLyGT1x/Ym0XZmB78ZlG7yegEdhyRM1IcINS2X2biaIRhEdE5nh9LGV68ZdR2 uTH4O2nNhCF59rA+os3+Te9Ol+fBSrT7AZZJjrNj1HOr6yt8rPVbAsCG/WifJIHsRONa p4zd+vHdGgW8DUIchLWuJ7H0Rn9BWImhhNpu7m84LvdA3/DEibVTFjhgNfwTpsmKQXz1 Svzg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=+BRei2E7Nvobh7kFz2MVHgmPHzHXWzwfZ7PzmhWpKCU=; b=B1pzeo9ZPlGaPkE+XPgsDMcgccbTPxCRnYNlM+K2sX9uLSYoqssyUqTEEgrkSroJl2 KZO2umpXegE0JQ8sFduxXv6h4Lef3HyCHQPl0iV0Z25BvN8bows+wOUZrZ1OpdzZGcpj lnVSCjWL6RSP5OmpfNIIQn0f7fE1A8gBJoeFSnnGyX7ZDvcUu1fi7iShgGYHFZI5a5y0 7KzHPPc4P68uiXkK47ly5ejU0DMYqZMya27tFGxthfWyS21h85HhkBpP/3f0pGNvkcXD jMI+M31GoKWb5JNVWdMRK7tfGgxNZgLvOTTef0ehiBBuSNSrSqLmkdiggTBnUnItM1OQ q0sw== X-Gm-Message-State: AOAM532VeiaPmYuKI7A+ivmuhJ2ubEWiiG/c2g5Fvy0cg/2+1PgbITZn eFoTMDyNm1roeXh/NZ1GY+zl1/dNmw== X-Google-Smtp-Source: ABdhPJylZfvkxmlMcKib7+bTkgNyKn5qbSk0OhZpFeoWYnZsq/3i5XZC54WH331xaSWwsq3NWplyDA== X-Received: by 2002:a37:4796:: with SMTP id u144mr25609148qka.235.1606773801349; Mon, 30 Nov 2020 14:03:21 -0800 (PST) Received: from leira.hammer.space (c-68-36-133-222.hsd1.mi.comcast.net. [68.36.133.222]) by smtp.gmail.com with ESMTPSA id q62sm17642886qkf.86.2020.11.30.14.03.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 30 Nov 2020 14:03:20 -0800 (PST) From: trondmy@gmail.com X-Google-Original-From: trond.myklebust@hammerspace.com To: "J. Bruce Fields" , Chuck Lever Cc: linux-nfs@vger.kernel.org Subject: [PATCH v2 0/6] Patches to support NFS re-exporting Date: Mon, 30 Nov 2020 17:03:13 -0500 Message-Id: <20201130220319.501064-1-trond.myklebust@hammerspace.com> X-Mailer: git-send-email 2.28.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org From: Trond Myklebust These patches fix a number of issues that Hammerspace has hit when doing re-exporting of NFS. - v2: Rebased on top of cel-next. Jeff Layton (3): nfsd: add a new EXPORT_OP_NOWCC flag to struct export_operations nfsd: allow filesystems to opt out of subtree checking nfsd: close cached files prior to a REMOVE or RENAME that would replace target Trond Myklebust (3): exportfs: Add a function to return the raw output from fh_to_dentry() nfsd: Fix up nfsd to ensure that timeout errors don't result in ESTALE nfsd: Set PF_LOCAL_THROTTLE on local filesystems only Documentation/filesystems/nfs/exporting.rst | 52 +++++++++++++++++++++ fs/exportfs/expfs.c | 32 +++++++++---- fs/nfs/export.c | 2 + fs/nfsd/export.c | 6 +++ fs/nfsd/nfs3xdr.c | 7 ++- fs/nfsd/nfsfh.c | 30 ++++++++++-- fs/nfsd/nfsfh.h | 2 +- fs/nfsd/vfs.c | 29 ++++++++---- include/linux/exportfs.h | 10 ++++ 9 files changed, 146 insertions(+), 24 deletions(-)