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 X-Spam-Level: X-Spam-Status: No, score=-7.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=no 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 CD2D4C433DF for ; Wed, 5 Aug 2020 20:26:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A4E2822B42 for ; Wed, 5 Aug 2020 20:26:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1596659201; bh=SNIwSAArg8ZICmFa9PpKHz0Jro0pjiLrIkBnphZaOAk=; h=From:To:Subject:Date:List-ID:From; b=ChjlhFLajtxCpnJ2HyIKK9mixqmxUYLCY96eZTiv6+dRt51se8CiHV8FVPyOjstiH yMb47GLL6/W5kQqSvaO6uUIUOylRthyO6YxRgf8O/71sfQb+29UEfy7qTuiVhHYDjm XXaw3n7Z+2YrAfRAo9TXb40Vhgk0QFa4du8sX/74= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726346AbgHEU0k (ORCPT ); Wed, 5 Aug 2020 16:26:40 -0400 Received: from mail.kernel.org ([198.145.29.99]:57014 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726013AbgHEU0k (ORCPT ); Wed, 5 Aug 2020 16:26:40 -0400 Received: from localhost.localdomain (c-68-36-133-222.hsd1.mi.comcast.net [68.36.133.222]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id A0EFB22B42 for ; Wed, 5 Aug 2020 20:26:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1596659199; bh=SNIwSAArg8ZICmFa9PpKHz0Jro0pjiLrIkBnphZaOAk=; h=From:To:Subject:Date:From; b=0dZAXpRER01UOnFfO4G8IMPlxYLdy3x6DQS21Gm9PtkB2zCb0d7dmeYUNOX182Ew1 3Efp3upHiv2Pl1byPHYuTDKijrKJkuTI9Se0gxXBDS0SRBaH4ijUpyDe4Te2Ra7NoX aEBBFRGgLwKPH2OBVx3PWX1fmf62IzJM1reybPKA= From: trondmy@kernel.org To: linux-nfs@vger.kernel.org Subject: [PATCH 0/2] Don't do pNFS I/O when not holding a layout Date: Wed, 5 Aug 2020 16:24:29 -0400 Message-Id: <20200805202431.627013-1-trondmy@kernel.org> X-Mailer: git-send-email 2.26.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org From: Trond Myklebust We recently discovered a couple of issues in the pNFS client that can cause it to return a layout while some of the layout segments being returned are still in use for I/O. The following 2 patches will add appropriate tests to ensure this cannot happen, and that the layoutreturn call is delayed until the outstanding I/O is finished. Trond Myklebust (2): NFS: Don't move layouts to plh_return_segs list while in use NFS: Don't return layout segments that are in use fs/nfs/pnfs.c | 46 ++++++++++++++++------------------------------ 1 file changed, 16 insertions(+), 30 deletions(-) -- 2.26.2