From patchwork Tue May 6 13:12:35 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Schumaker, Anna" X-Patchwork-Id: 4121141 Return-Path: X-Original-To: patchwork-linux-nfs@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id B67B99F1E1 for ; Tue, 6 May 2014 13:13:32 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id BBEEC201DE for ; Tue, 6 May 2014 13:13:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B9F682010F for ; Tue, 6 May 2014 13:13:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751881AbaEFNNH (ORCPT ); Tue, 6 May 2014 09:13:07 -0400 Received: from mx11.netapp.com ([216.240.18.76]:32923 "EHLO mx11.netapp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751687AbaEFNNE (ORCPT ); Tue, 6 May 2014 09:13:04 -0400 X-IronPort-AV: E=Sophos;i="4.97,997,1389772800"; d="scan'208";a="121468202" Received: from vmwexceht05-prd.hq.netapp.com ([10.106.77.35]) by mx11-out.netapp.com with ESMTP; 06 May 2014 06:13:02 -0700 Received: from VMWEXCHTS04-PRD.hq.netapp.com (10.122.105.32) by vmwexceht05-prd.hq.netapp.com (10.106.77.35) with Microsoft SMTP Server (TLS) id 14.3.123.3; Tue, 6 May 2014 06:13:01 -0700 Received: from smtp2.corp.netapp.com (10.57.159.114) by VMWEXCHTS04-PRD.hq.netapp.com (10.122.105.32) with Microsoft SMTP Server id 15.0.847.32; Tue, 6 May 2014 06:12:59 -0700 Received: from davros.com (davros.ocarinaproject.vpn.netapp.com [10.63.232.28]) by smtp2.corp.netapp.com (8.13.1/8.13.1/NTAP-1.6) with ESMTP id s46DCfEU000665; Tue, 6 May 2014 06:12:59 -0700 (PDT) From: Anna Schumaker To: , CC: , Subject: [PATCH v3 12/17] NFS: Create a common pgio_error function Date: Tue, 6 May 2014 09:12:35 -0400 Message-ID: <1399381960-3019-13-git-send-email-Anna.Schumaker@Netapp.com> X-Mailer: git-send-email 1.9.2 In-Reply-To: <1399381960-3019-1-git-send-email-Anna.Schumaker@Netapp.com> References: <1399381960-3019-1-git-send-email-Anna.Schumaker@Netapp.com> MIME-Version: 1.0 Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org X-Spam-Status: No, score=-7.5 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, 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: Anna Schumaker At this point, the read and write versions of this function look identical so both should use the same function. Signed-off-by: Anna Schumaker --- fs/nfs/internal.h | 1 + fs/nfs/pagelist.c | 20 ++++++++++++++++++++ fs/nfs/read.c | 25 ++++--------------------- fs/nfs/write.c | 25 ++++--------------------- 4 files changed, 29 insertions(+), 42 deletions(-) diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index 519864b..a4b9e75 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -242,6 +242,7 @@ struct nfs_rw_header *nfs_rw_header_alloc(const struct nfs_rw_ops *); void nfs_rw_header_free(struct nfs_pgio_header *); struct nfs_pgio_data *nfs_pgio_data_alloc(struct nfs_pgio_header *, unsigned int); void nfs_pgio_data_release(struct nfs_pgio_data *); +int nfs_pgio_error(struct nfs_pageio_descriptor *, struct nfs_pgio_header *); void nfs_pgio_rpcsetup(struct nfs_pgio_data *, unsigned int, unsigned int, int, struct nfs_commit_info *); diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c index 0ccd951..b0a98da 100644 --- a/fs/nfs/pagelist.c +++ b/fs/nfs/pagelist.c @@ -447,6 +447,26 @@ static void nfs_pgio_prepare(struct rpc_task *task, void *calldata) } /** + * nfs_pgio_error - Clean up from a pageio error + * @desc: IO descriptor + * @hdr: pageio header + */ +int nfs_pgio_error(struct nfs_pageio_descriptor *desc, + struct nfs_pgio_header *hdr) +{ + struct nfs_pgio_data *data; + + set_bit(NFS_IOHDR_REDO, &hdr->flags); + while (!list_empty(&hdr->rpc_list)) { + data = list_first_entry(&hdr->rpc_list, struct nfs_pgio_data, list); + list_del(&data->list); + nfs_pgio_data_release(data); + } + desc->pg_completion_ops->error_cleanup(&desc->pg_list); + return -ENOMEM; +} + +/** * nfs_pgio_release - Release pageio data * @calldata: The pageio data to release */ diff --git a/fs/nfs/read.c b/fs/nfs/read.c index 0c88c60..64f8eef 100644 --- a/fs/nfs/read.c +++ b/fs/nfs/read.c @@ -237,19 +237,6 @@ static const struct nfs_pgio_completion_ops nfs_async_read_completion_ops = { .completion = nfs_read_completion, }; -static void nfs_pagein_error(struct nfs_pageio_descriptor *desc, - struct nfs_pgio_header *hdr) -{ - set_bit(NFS_IOHDR_REDO, &hdr->flags); - while (!list_empty(&hdr->rpc_list)) { - struct nfs_pgio_data *data = list_first_entry(&hdr->rpc_list, - struct nfs_pgio_data, list); - list_del(&data->list); - nfs_pgio_data_release(data); - } - desc->pg_completion_ops->error_cleanup(&desc->pg_list); -} - /* * Generate multiple requests to fill a single page. * @@ -278,10 +265,8 @@ static int nfs_pagein_multi(struct nfs_pageio_descriptor *desc, size_t len = min(nbytes,rsize); data = nfs_pgio_data_alloc(hdr, 1); - if (!data) { - nfs_pagein_error(desc, hdr); - return -ENOMEM; - } + if (!data) + return nfs_pgio_error(desc, hdr); data->pages.pagevec[0] = page; nfs_pgio_rpcsetup(data, len, offset, 0, NULL); list_add(&data->list, &hdr->rpc_list); @@ -305,10 +290,8 @@ static int nfs_pagein_one(struct nfs_pageio_descriptor *desc, data = nfs_pgio_data_alloc(hdr, nfs_page_array_len(desc->pg_base, desc->pg_count)); - if (!data) { - nfs_pagein_error(desc, hdr); - return -ENOMEM; - } + if (!data) + return nfs_pgio_error(desc, hdr); pages = data->pages.pagevec; while (!list_empty(head)) { diff --git a/fs/nfs/write.c b/fs/nfs/write.c index 0d367aa..02d088b 100644 --- a/fs/nfs/write.c +++ b/fs/nfs/write.c @@ -1044,19 +1044,6 @@ static const struct nfs_pgio_completion_ops nfs_async_write_completion_ops = { .completion = nfs_write_completion, }; -static void nfs_flush_error(struct nfs_pageio_descriptor *desc, - struct nfs_pgio_header *hdr) -{ - set_bit(NFS_IOHDR_REDO, &hdr->flags); - while (!list_empty(&hdr->rpc_list)) { - struct nfs_pgio_data *data = list_first_entry(&hdr->rpc_list, - struct nfs_pgio_data, list); - list_del(&data->list); - nfs_pgio_data_release(data); - } - desc->pg_completion_ops->error_cleanup(&desc->pg_list); -} - /* * Generate multiple small requests to write out a single * contiguous dirty area on one page. @@ -1086,10 +1073,8 @@ static int nfs_flush_multi(struct nfs_pageio_descriptor *desc, size_t len = min(nbytes, wsize); data = nfs_pgio_data_alloc(hdr, 1); - if (!data) { - nfs_flush_error(desc, hdr); - return -ENOMEM; - } + if (!data) + return nfs_pgio_error(desc, hdr); data->pages.pagevec[0] = page; nfs_pgio_rpcsetup(data, len, offset, desc->pg_ioflags, &cinfo); list_add(&data->list, &hdr->rpc_list); @@ -1122,10 +1107,8 @@ static int nfs_flush_one(struct nfs_pageio_descriptor *desc, data = nfs_pgio_data_alloc(hdr, nfs_page_array_len(desc->pg_base, desc->pg_count)); - if (!data) { - nfs_flush_error(desc, hdr); - return -ENOMEM; - } + if (!data) + return nfs_pgio_error(desc, hdr); nfs_init_cinfo(&cinfo, desc->pg_inode, desc->pg_dreq); pages = data->pages.pagevec;