4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
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21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
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30 * Copyright (c) 2011, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
38 * Lustre Metadata Server (MDS) filesystem interface code
41 #define DEBUG_SUBSYSTEM S_MDS
43 #include "mdt_internal.h"
45 static const struct file_operations mdt_open_files_seq_fops = {
47 .open = lprocfs_mdt_open_files_seq_open,
50 .release = seq_release,
53 int mdt_export_stats_init(struct obd_device *obd,
54 struct obd_export *exp,
57 lnet_nid_t *client_nid = localdata;
61 LASSERT(!obd->obd_uses_nid_stats);
63 rc = lprocfs_exp_setup(exp, client_nid, &newnid);
65 /* Mask error for already created
72 struct nid_stat *tmp = exp->exp_nid_stats;
74 tmp->nid_stats = lprocfs_alloc_stats(LPROC_MDT_LAST,
75 LPROCFS_STATS_FLAG_NOPERCPU);
76 if (tmp->nid_stats == NULL)
78 mdt_stats_counter_init(tmp->nid_stats);
79 rc = lprocfs_register_stats(tmp->nid_proc, "stats",
83 rc = lprocfs_nid_ldlm_stats_init(tmp);
87 rc = lprocfs_seq_create(tmp->nid_proc, "open_files",
88 0444, &mdt_open_files_seq_fops, tmp);
90 CWARN("%s: error adding the open_files file: rc = %d\n",