From patchwork Mon Feb 2 22:38:21 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Haynes X-Patchwork-Id: 5764781 Return-Path: X-Original-To: patchwork-linux-nfs@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 15ED2BF440 for ; Mon, 2 Feb 2015 22:39:38 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 3DE9C209E9 for ; Mon, 2 Feb 2015 22:39:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 52113209E8 for ; Mon, 2 Feb 2015 22:39:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965254AbbBBWjf (ORCPT ); Mon, 2 Feb 2015 17:39:35 -0500 Received: from mail-pa0-f46.google.com ([209.85.220.46]:49988 "EHLO mail-pa0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965042AbbBBWjf (ORCPT ); Mon, 2 Feb 2015 17:39:35 -0500 Received: by mail-pa0-f46.google.com with SMTP id lj1so87876316pab.5 for ; Mon, 02 Feb 2015 14:39:34 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=7kM3ZKQrgaueASdGqh7NWxetpgbseiNdo6yi1P3YwPA=; b=YWDsbD61kPeVHYDB5aEZpFLhFRtLFVGI+vECR6OEy8ocZiJj6sMuo65aFaweZHbY28 EK7U5lc5LKw74GN/OSEQg2PxKOIG9ppzF/qsECxFJmCPQEyJ3ZHTjpaSqZ0FumRcyV7/ Xv/og15cGqlp7z4R6TVpYIzzKaqZ/u572Z22ACK2gmfUx6nrZuMd3w16xUI9xjYtBjJ3 BwW1GgoxpU6g4e9Z8T6H7bzLdSy/bb6oHTNQfzMpiJ7vTVraD+EkYDflpyC/bdi4s6Yi 2UYxkDedhI77gDzG0NrjOsaYxFqcsujP82mvucZPblY78EbnEcTzVx2/nJvVOY8uA7B4 gu5Q== X-Gm-Message-State: ALoCoQl+cvzH4pyiniL/C+/rihqzye/canhp8u2Mci89bqMcPiA4mpCQEpAiYRiBzWzOxCMcCcJT X-Received: by 10.70.34.65 with SMTP id x1mr32538244pdi.120.1422916774535; Mon, 02 Feb 2015 14:39:34 -0800 (PST) Received: from localhost.localdomain ([50.242.95.105]) by mx.google.com with ESMTPSA id bx13sm94656pdb.19.2015.02.02.14.39.33 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 02 Feb 2015 14:39:34 -0800 (PST) From: Tom Haynes X-Google-Original-From: Tom Haynes To: Trond Myklebust Cc: Linux NFS Mailing list Subject: [PATCH v6 07/53] nfs41: move file layout macros to generic pnfs Date: Mon, 2 Feb 2015 14:38:21 -0800 Message-Id: <1422916747-86649-8-git-send-email-loghyr@primarydata.com> X-Mailer: git-send-email 1.9.3 In-Reply-To: <1422916747-86649-1-git-send-email-loghyr@primarydata.com> References: <1422916747-86649-1-git-send-email-loghyr@primarydata.com> Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Peng Tao They can be reused by flexfile layout as well. Also add a code such that if read fails on one DS and there are other DSes available to use, don't resend through MDS but through pNFS so that client can read from other DSes. Reviewed-by: Jeff Layton Signed-off-by: Peng Tao Signed-off-by: Tom Haynes --- fs/nfs/filelayout/filelayout.h | 10 ---------- fs/nfs/pnfs.h | 11 +++++++++++ 2 files changed, 11 insertions(+), 10 deletions(-) diff --git a/fs/nfs/filelayout/filelayout.h b/fs/nfs/filelayout/filelayout.h index f97eea6..2896cb8 100644 --- a/fs/nfs/filelayout/filelayout.h +++ b/fs/nfs/filelayout/filelayout.h @@ -33,13 +33,6 @@ #include "../pnfs.h" /* - * Default data server connection timeout and retrans vaules. - * Set by module paramters dataserver_timeo and dataserver_retrans. - */ -#define NFS4_DEF_DS_TIMEO 600 /* in tenths of a second */ -#define NFS4_DEF_DS_RETRANS 5 - -/* * Field testing shows we need to support up to 4096 stripe indices. * We store each index as a u8 (u32 on the wire) to keep the memory footprint * reasonable. This in turn means we support a maximum of 256 @@ -48,9 +41,6 @@ #define NFS4_PNFS_MAX_STRIPE_CNT 4096 #define NFS4_PNFS_MAX_MULTI_CNT 256 /* 256 fit into a u8 stripe_index */ -/* error codes for internal use */ -#define NFS4ERR_RESET_TO_MDS 12001 - enum stripetype4 { STRIPE_SPARSE = 1, STRIPE_DENSE = 2 diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h index 2ea9e9a..aef89b3 100644 --- a/fs/nfs/pnfs.h +++ b/fs/nfs/pnfs.h @@ -77,6 +77,17 @@ enum pnfs_try_status { #define LAYOUT_NFSV4_1_MODULE_PREFIX "nfs-layouttype4" +/* + * Default data server connection timeout and retrans vaules. + * Set by module parameters dataserver_timeo and dataserver_retrans. + */ +#define NFS4_DEF_DS_TIMEO 600 /* in tenths of a second */ +#define NFS4_DEF_DS_RETRANS 5 + +/* error codes for internal use */ +#define NFS4ERR_RESET_TO_MDS 12001 +#define NFS4ERR_RESET_TO_PNFS 12002 + enum { NFS_LAYOUT_RO_FAILED = 0, /* get ro layout failed stop trying */ NFS_LAYOUT_RW_FAILED, /* get rw layout failed stop trying */