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.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2012, 2014, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
30 * Lustre is a trademark of Sun Microsystems, Inc.
33 #define DEBUG_SUBSYSTEM S_LMV
34 #include <linux/slab.h>
35 #include <linux/module.h>
36 #include <linux/init.h>
37 #include <linux/slab.h>
38 #include <linux/pagemap.h>
39 #include <linux/math64.h>
40 #include <linux/seq_file.h>
42 #include <obd_support.h>
43 #include <lustre_fid.h>
44 #include <lustre_lib.h>
45 #include <lustre_net.h>
46 #include <lustre_dlm.h>
47 #include <obd_class.h>
48 #include <lprocfs_status.h>
49 #include "lmv_internal.h"
51 int lmv_fld_lookup(struct lmv_obd *lmv, const struct lu_fid *fid, u32 *mds)
53 struct obd_device *obd = lmv2obd_dev(lmv);
57 /* FIXME: Currently ZFS still use local seq for ROOT unfortunately, and
58 * this fid_is_local check should be removed once LU-2240 is fixed */
59 if (!fid_is_sane(fid) || !(fid_seq_in_fldb(fid_seq(fid)) ||
60 fid_seq_is_local_file(fid_seq(fid)))) {
61 CERROR("%s: invalid FID "DFID"\n", obd->obd_name, PFID(fid));
65 rc = fld_client_lookup(&lmv->lmv_fld, fid_seq(fid), mds,
66 LU_SEQ_RANGE_MDT, NULL);
68 CERROR("Error while looking for mds number. Seq %#llx"
69 ", err = %d\n", fid_seq(fid), rc);
73 CDEBUG(D_INODE, "FLD lookup got mds #%x for fid="DFID"\n",
76 if (*mds >= lmv->desc.ld_tgt_count) {
77 CERROR("FLD lookup got invalid mds #%x (max: %x) "
78 "for fid="DFID"\n", *mds, lmv->desc.ld_tgt_count,