From patchwork Tue Jun 23 11:51:57 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peng Tao X-Patchwork-Id: 6659861 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 2A7F4C05AC for ; Tue, 23 Jun 2015 11:52:37 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 2BB912063E for ; Tue, 23 Jun 2015 11:52:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3812B2063C for ; Tue, 23 Jun 2015 11:52:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754634AbbFWLwe (ORCPT ); Tue, 23 Jun 2015 07:52:34 -0400 Received: from mail-pd0-f171.google.com ([209.85.192.171]:33131 "EHLO mail-pd0-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753097AbbFWLwd (ORCPT ); Tue, 23 Jun 2015 07:52:33 -0400 Received: by pdjn11 with SMTP id n11so5920027pdj.0 for ; Tue, 23 Jun 2015 04:52:33 -0700 (PDT) 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=DoEByxguqulvwoUSIXI7Q9i5Jt4KdXjshBk/uJEhxQ8=; b=bMODFKE+FcuLUx4dvt2VU4+mjY/i4Hf8sLf/tl/mTn26Nz2sDlZkSxgXZdJfsFjwNs OlxVDxxpC/Yh/lsMdejsinIlj6KzzgMQgbljwecQb7EV4llem1e7INEPin3D6ew/NGIQ p9sFbzDC2MfLkI2W0kZAGAaPAh+XYZ1j5KOyryo89iIIsiylbT9BL5eR755VPAkKyDUK VVTansiIXtCpyKGiEw+lPZKNStynhpkiJgWbEkfMs6wnIcAEqJ/4qnk1PQPp3lqNH2mS ztMkpjtGCTOezEO9yjHhf5lO4egMSWRu+k0czu86IsG7+dBJmKmh/9yF8PuY3x+IJPJT pCDA== X-Gm-Message-State: ALoCoQlZxzvTeg8G1anRga1VHeHIw2mVHOS2mSA3n5j4ns06d6NPYsNlYeewOR6N53OqdOLnYVnT X-Received: by 10.70.63.104 with SMTP id f8mr69162369pds.49.1435060353317; Tue, 23 Jun 2015 04:52:33 -0700 (PDT) Received: from lear.localdomain (ec2-54-65-164-9.ap-northeast-1.compute.amazonaws.com. [54.65.164.9]) by mx.google.com with ESMTPSA id kh6sm22995755pbc.50.2015.06.23.04.52.31 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 23 Jun 2015 04:52:32 -0700 (PDT) From: Peng Tao To: linux-nfs Cc: Trond Myklebust , Peng Tao Subject: [PATCH-v2 03/10] pnfs: add pnfs_report_layoutstat helper function Date: Tue, 23 Jun 2015 19:51:57 +0800 Message-Id: <1435060324-13279-4-git-send-email-tao.peng@primarydata.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1435060324-13279-1-git-send-email-tao.peng@primarydata.com> References: <1435060324-13279-1-git-send-email-tao.peng@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=-8.3 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 Reviewed-by: Jeff Layton Signed-off-by: Peng Tao --- fs/nfs/nfs42proc.c | 4 ++++ fs/nfs/pnfs.c | 49 +++++++++++++++++++++++++++++++++++++++++++++++++ fs/nfs/pnfs.h | 3 +++ 3 files changed, 56 insertions(+) diff --git a/fs/nfs/nfs42proc.c b/fs/nfs/nfs42proc.c index a053041..ee02483 100644 --- a/fs/nfs/nfs42proc.c +++ b/fs/nfs/nfs42proc.c @@ -198,6 +198,10 @@ static void nfs42_layoutstat_release(void *calldata) { struct nfs42_layoutstat_data *data = calldata; + struct nfs_server *nfss = NFS_SERVER(data->args.inode); + + if (nfss->pnfs_curr_ld->cleanup_layoutstats) + nfss->pnfs_curr_ld->cleanup_layoutstats(data); pnfs_put_layout_hdr(NFS_I(data->args.inode)->layout); nfs_iput_and_deactive(data->inode); diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index 2306062..389f7c9 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -35,6 +35,7 @@ #include "iostat.h" #include "nfs4trace.h" #include "delegation.h" +#include "nfs42.h" #define NFSDBG_FACILITY NFSDBG_PNFS #define PNFS_LAYOUTGET_RETRY_TIMEOUT (120*HZ) @@ -2247,3 +2248,51 @@ struct nfs4_threshold *pnfs_mdsthreshold_alloc(void) } return thp; } + +int +pnfs_report_layoutstat(struct inode *inode) +{ + struct pnfs_layoutdriver_type *ld = NFS_SERVER(inode)->pnfs_curr_ld; + struct nfs_server *server = NFS_SERVER(inode); + struct nfs42_layoutstat_data *data; + struct pnfs_layout_hdr *hdr; + int status = 0; + + if (!pnfs_enabled_sb(server) || !ld->prepare_layoutstats) + goto out; + + spin_lock(&inode->i_lock); + if (!NFS_I(inode)->layout) { + spin_unlock(&inode->i_lock); + goto out; + } + hdr = NFS_I(inode)->layout; + pnfs_get_layout_hdr(hdr); + spin_unlock(&inode->i_lock); + + data = kzalloc(sizeof(*data), GFP_KERNEL); + if (!data) { + status = -ENOMEM; + goto out_put; + } + + data->args.fh = NFS_FH(inode); + data->args.inode = inode; + nfs4_stateid_copy(&data->args.stateid, &hdr->plh_stateid); + status = ld->prepare_layoutstats(&data->args); + if (status) + goto out_free; + + status = nfs42_proc_layoutstats_generic(NFS_SERVER(inode), data); + +out: + dprintk("%s returns %d\n", __func__, status); + return status; + +out_free: + kfree(data); +out_put: + pnfs_put_layout_hdr(hdr); + goto out; +} +EXPORT_SYMBOL_GPL(pnfs_report_layoutstat); diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h index 1e6308f..0a47239 100644 --- a/fs/nfs/pnfs.h +++ b/fs/nfs/pnfs.h @@ -178,6 +178,8 @@ struct pnfs_layoutdriver_type { void (*encode_layoutcommit) (struct pnfs_layout_hdr *lo, struct xdr_stream *xdr, const struct nfs4_layoutcommit_args *args); + int (*prepare_layoutstats) (struct nfs42_layoutstat_args *args); + void (*cleanup_layoutstats) (struct nfs42_layoutstat_data *data); }; struct pnfs_layout_hdr { @@ -290,6 +292,7 @@ int pnfs_write_done_resend_to_mds(struct nfs_pgio_header *); struct nfs4_threshold *pnfs_mdsthreshold_alloc(void); void pnfs_error_mark_layout_for_return(struct inode *inode, struct pnfs_layout_segment *lseg); +int pnfs_report_layoutstat(struct inode *inode); /* nfs4_deviceid_flags */ enum {