projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| d7e09d03 PT |
1 | /* |
| 2 | * GPL HEADER START | |
| 3 | * | |
| 4 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 5 | * | |
| 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. | |
| 9 | * | |
| 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). | |
| 15 | * | |
| 16 | * You should have received a copy of the GNU General Public License | |
| 17 | * version 2 along with this program; If not, see | |
| 6a5b99a4 | 18 | * http://www.gnu.org/licenses/gpl-2.0.html |
| d7e09d03 | 19 | * |
| d7e09d03 PT |
20 | * GPL HEADER END |
| 21 | */ | |
| 22 | /* | |
| 23 | * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. | |
| 24 | * Use is subject to license terms. | |
| 25 | * | |
| 26 | * Copyright (c) 2013, Intel Corporation. | |
| 27 | */ | |
| 28 | /* | |
| 29 | * This file is part of Lustre, http://www.lustre.org/ | |
| 30 | * Lustre is a trademark of Sun Microsystems, Inc. | |
| 31 | */ | |
| 32 | ||
| 33 | #define DEBUG_SUBSYSTEM S_LMV | |
| 34 | #include <linux/slab.h> | |
| 35 | #include <linux/module.h> | |
| d7e09d03 PT |
36 | #include <linux/pagemap.h> |
| 37 | #include <asm/div64.h> | |
| 38 | #include <linux/seq_file.h> | |
| 39 | ||
| a8c495ac GKH |
40 | #include "../include/obd_support.h" |
| 41 | #include "../include/lustre/lustre_idl.h" | |
| 42 | #include "../include/lustre_fid.h" | |
| 43 | #include "../include/lustre_lib.h" | |
| 44 | #include "../include/lustre_net.h" | |
| 45 | #include "../include/lustre_dlm.h" | |
| 46 | #include "../include/obd_class.h" | |
| 47 | #include "../include/lprocfs_status.h" | |
| d7e09d03 PT |
48 | #include "lmv_internal.h" |
| 49 | ||
| 50 | int lmv_fld_lookup(struct lmv_obd *lmv, | |
| 51 | const struct lu_fid *fid, | |
| 114acca8 | 52 | u32 *mds) |
| d7e09d03 PT |
53 | { |
| 54 | int rc; | |
| d7e09d03 PT |
55 | |
| 56 | /* FIXME: Currently ZFS still use local seq for ROOT unfortunately, and | |
| 7f05d5bb OD |
57 | * this fid_is_local check should be removed once LU-2240 is fixed |
| 58 | */ | |
| d7e09d03 PT |
59 | LASSERTF((fid_seq_in_fldb(fid_seq(fid)) || |
| 60 | fid_seq_is_local_file(fid_seq(fid))) && | |
| 61 | fid_is_sane(fid), DFID" is insane!\n", PFID(fid)); | |
| 62 | ||
| 63 | rc = fld_client_lookup(&lmv->lmv_fld, fid_seq(fid), mds, | |
| 64 | LU_SEQ_RANGE_MDT, NULL); | |
| 65 | if (rc) { | |
| 55f5a824 GKH |
66 | CERROR("Error while looking for mds number. Seq %#llx, err = %d\n", |
| 67 | fid_seq(fid), rc); | |
| 0a3bdb00 | 68 | return rc; |
| d7e09d03 PT |
69 | } |
| 70 | ||
| 71 | CDEBUG(D_INODE, "FLD lookup got mds #%x for fid="DFID"\n", | |
| 72 | *mds, PFID(fid)); | |
| 73 | ||
| 74 | if (*mds >= lmv->desc.ld_tgt_count) { | |
| 2d00bd17 | 75 | CERROR("FLD lookup got invalid mds #%x (max: %x) for fid=" DFID "\n", *mds, lmv->desc.ld_tgt_count, |
| d7e09d03 PT |
76 | PFID(fid)); |
| 77 | rc = -EINVAL; | |
| 78 | } | |
| 0a3bdb00 | 79 | return rc; |
| d7e09d03 | 80 | } |