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
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18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
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30 * Copyright (c) 2011, 2013, Intel Corporation.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
37 #ifndef _MDC_INTERNAL_H
38 #define _MDC_INTERNAL_H
40 #include <lustre_mdc.h>
41 #include <lustre_mds.h>
44 extern struct lprocfs_seq_vars lprocfs_mdc_obd_vars[];
47 void mdc_pack_body(struct ptlrpc_request *req, const struct lu_fid *fid,
48 struct obd_capa *oc, __u64 valid, int ea_size,
49 __u32 suppgid, int flags);
50 void mdc_pack_capa(struct ptlrpc_request *req,
51 const struct req_msg_field *field, struct obd_capa *oc);
52 int mdc_pack_req(struct ptlrpc_request *req, int version, int opc);
53 void mdc_is_subdir_pack(struct ptlrpc_request *req, const struct lu_fid *pfid,
54 const struct lu_fid *cfid, int flags);
55 void mdc_swap_layouts_pack(struct ptlrpc_request *req,
56 struct md_op_data *op_data);
57 void mdc_readdir_pack(struct ptlrpc_request *req, __u64 pgoff, __u32 size,
58 const struct lu_fid *fid, struct obd_capa *oc);
59 void mdc_getattr_pack(struct ptlrpc_request *req, __u64 valid, int flags,
60 struct md_op_data *data, int ea_size);
61 void mdc_setattr_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
62 void *ea, int ealen, void *ea2, int ea2len);
63 void mdc_create_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
64 const void *data, int datalen, __u32 mode, __u32 uid,
65 __u32 gid, cfs_cap_t capability, __u64 rdev);
66 void mdc_open_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
67 __u32 mode, __u64 rdev, __u64 flags, const void *data,
69 void mdc_unlink_pack(struct ptlrpc_request *req, struct md_op_data *op_data);
70 void mdc_getxattr_pack(struct ptlrpc_request *req, struct md_op_data *op_data);
71 void mdc_link_pack(struct ptlrpc_request *req, struct md_op_data *op_data);
72 void mdc_rename_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
73 const char *old, int oldlen, const char *new, int newlen);
74 void mdc_close_pack(struct ptlrpc_request *req, struct md_op_data *op_data);
75 int mdc_enter_request(struct client_obd *cli);
76 void mdc_exit_request(struct client_obd *cli);
79 int mdc_set_lock_data(struct obd_export *exp,
80 __u64 *lockh, void *data, __u64 *bits);
82 int mdc_null_inode(struct obd_export *exp, const struct lu_fid *fid);
84 int mdc_find_cbdata(struct obd_export *exp, const struct lu_fid *fid,
85 ldlm_iterator_t it, void *data);
87 int mdc_intent_lock(struct obd_export *exp,
89 void *lmm, int lmmsize,
90 struct lookup_intent *, int,
91 struct ptlrpc_request **reqp,
92 ldlm_blocking_callback cb_blocking,
93 __u64 extra_lock_flags);
94 int mdc_enqueue(struct obd_export *exp, struct ldlm_enqueue_info *einfo,
95 struct lookup_intent *it, struct md_op_data *op_data,
96 struct lustre_handle *lockh, void *lmm, int lmmsize,
97 struct ptlrpc_request **req, __u64 extra_lock_flags);
99 int mdc_resource_get_unused(struct obd_export *exp, const struct lu_fid *fid,
100 cfs_list_t *cancels, ldlm_mode_t mode,
102 /* mdc/mdc_request.c */
103 int mdc_fid_alloc(struct obd_export *exp, struct lu_fid *fid,
104 struct md_op_data *op_data);
106 int mdc_open(struct obd_export *exp, obd_id ino, int type, int flags,
107 struct lov_mds_md *lmm, int lmm_size, struct lustre_handle *fh,
108 struct ptlrpc_request **);
110 struct obd_client_handle;
112 int mdc_get_lustre_md(struct obd_export *md_exp, struct ptlrpc_request *req,
113 struct obd_export *dt_exp, struct obd_export *lmv_exp,
114 struct lustre_md *md);
116 int mdc_free_lustre_md(struct obd_export *exp, struct lustre_md *md);
118 int mdc_set_open_replay_data(struct obd_export *exp,
119 struct obd_client_handle *och,
120 struct lookup_intent *it);
122 int mdc_clear_open_replay_data(struct obd_export *exp,
123 struct obd_client_handle *och);
124 void mdc_commit_open(struct ptlrpc_request *req);
125 void mdc_replay_open(struct ptlrpc_request *req);
127 int mdc_create(struct obd_export *exp, struct md_op_data *op_data,
128 const void *data, int datalen, int mode, __u32 uid, __u32 gid,
129 cfs_cap_t capability, __u64 rdev,
130 struct ptlrpc_request **request);
131 int mdc_link(struct obd_export *exp, struct md_op_data *op_data,
132 struct ptlrpc_request **request);
133 int mdc_rename(struct obd_export *exp, struct md_op_data *op_data,
134 const char *old, int oldlen, const char *new, int newlen,
135 struct ptlrpc_request **request);
136 int mdc_setattr(struct obd_export *exp, struct md_op_data *op_data,
137 void *ea, int ealen, void *ea2, int ea2len,
138 struct ptlrpc_request **request, struct md_open_data **mod);
139 int mdc_unlink(struct obd_export *exp, struct md_op_data *op_data,
140 struct ptlrpc_request **request);
141 int mdc_cancel_unused(struct obd_export *exp, const struct lu_fid *fid,
142 ldlm_policy_data_t *policy, ldlm_mode_t mode,
143 ldlm_cancel_flags_t flags, void *opaque);
145 static inline void mdc_set_capa_size(struct ptlrpc_request *req,
146 const struct req_msg_field *field,
150 req_capsule_set_size(&req->rq_pill, field, RCL_CLIENT, 0);
152 /* it is already calculated as sizeof struct obd_capa */
156 int mdc_revalidate_lock(struct obd_export *exp, struct lookup_intent *it,
157 struct lu_fid *fid, __u64 *bits);
159 int mdc_intent_getattr_async(struct obd_export *exp,
160 struct md_enqueue_info *minfo,
161 struct ldlm_enqueue_info *einfo);
163 ldlm_mode_t mdc_lock_match(struct obd_export *exp, __u64 flags,
164 const struct lu_fid *fid, ldlm_type_t type,
165 ldlm_policy_data_t *policy, ldlm_mode_t mode,
166 struct lustre_handle *lockh);
168 static inline int mdc_prep_elc_req(struct obd_export *exp,
169 struct ptlrpc_request *req, int opc,
170 cfs_list_t *cancels, int count)
172 return ldlm_prep_elc_req(exp, req, LUSTRE_MDS_VERSION, opc, 0, cancels,
176 static inline unsigned long hash_x_index(__u64 hash, int hash64)
179 if (BITS_PER_LONG == 32 && hash64)
182 /* save hash 0 as index 0 because otherwise we'll save it at
183 * page index end (~0UL) and it causes truncate_inode_pages_range()
186 return ~0UL - (hash + !hash);