1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (c) 2003 Cluster File Systems, Inc.
6 * This file is part of the Lustre file system, http://www.lustre.org
7 * Lustre is a trademark of Cluster File Systems, Inc.
9 * You may have signed or agreed to another license before downloading
10 * this software. If so, you are bound by the terms and conditions
11 * of that agreement, and the following does not apply to you. See the
12 * LICENSE file included with this distribution for more information.
14 * If you did not agree to a different license, then this copy of Lustre
15 * is open source software; you can redistribute it and/or modify it
16 * under the terms of version 2 of the GNU General Public License as
17 * published by the Free Software Foundation.
19 * In either case, Lustre is distributed in the hope that it will be
20 * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
21 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * license text for more details.
25 #ifndef _MDC_INTERNAL_H
26 #define _MDC_INTERNAL_H
28 #include <lustre_mdc.h>
30 void mdc_pack_req_body(struct ptlrpc_request *req, int offset,
31 __u64 valid, struct lu_fid *fid, int ea_size, int flags);
32 void mdc_pack_rep_body(struct ptlrpc_request *);
33 void mdc_readdir_pack(struct ptlrpc_request *req, int pos, __u64 offset,
34 __u32 size, struct lu_fid *fid);
35 void mdc_getattr_pack(struct ptlrpc_request *req, int offset, int valid,
36 int flags, struct md_op_data *data);
37 void mdc_setattr_pack(struct ptlrpc_request *req, int offset,
38 struct md_op_data *op_data,
39 struct iattr *iattr, void *ea, int ealen,
40 void *ea2, int ea2len);
41 void mdc_create_pack(struct ptlrpc_request *req, int offset,
42 struct md_op_data *op_data, const void *data, int datalen,
43 __u32 mode, __u32 uid, __u32 gid, __u32 cap_effective,
45 void mdc_open_pack(struct ptlrpc_request *req, int offset,
46 struct md_op_data *op_data, __u32 mode, __u64 rdev,
47 __u32 flags, const void *data, int datalen);
48 void mdc_join_pack(struct ptlrpc_request *req, int offset,
49 struct md_op_data *op_data, __u64 head_size);
50 void mdc_unlink_pack(struct ptlrpc_request *req, int offset,
51 struct md_op_data *op_data);
52 void mdc_link_pack(struct ptlrpc_request *req, int offset,
53 struct md_op_data *op_data);
54 void mdc_rename_pack(struct ptlrpc_request *req, int offset,
55 struct md_op_data *op_data,
56 const char *old, int oldlen, const char *new, int newlen);
57 void mdc_close_pack(struct ptlrpc_request *req, int offset, struct md_op_data *op_data,
58 int valid, struct obd_client_handle *och);
59 void mdc_exit_request(struct client_obd *cli);
60 void mdc_enter_request(struct client_obd *cli);
62 struct mdc_open_data {
63 struct obd_client_handle *mod_och;
64 struct ptlrpc_request *mod_open_req;
65 struct ptlrpc_request *mod_close_req;
69 struct semaphore rpcl_sem;
70 struct lookup_intent *rpcl_it;
73 static inline void mdc_init_rpc_lock(struct mdc_rpc_lock *lck)
75 sema_init(&lck->rpcl_sem, 1);
79 static inline void mdc_get_rpc_lock(struct mdc_rpc_lock *lck,
80 struct lookup_intent *it)
83 if (!it || (it->it_op != IT_GETATTR && it->it_op != IT_LOOKUP)) {
85 LASSERT(lck->rpcl_it == NULL);
90 static inline void mdc_put_rpc_lock(struct mdc_rpc_lock *lck,
91 struct lookup_intent *it)
93 if (!it || (it->it_op != IT_GETATTR && it->it_op != IT_LOOKUP)) {
94 LASSERT(it == lck->rpcl_it);
102 extern quota_interface_t *quota_interface;
104 /* mdc/mdc_locks.c */
105 int mdc_set_lock_data(struct obd_export *exp,
106 __u64 *lockh, void *data);
108 int mdc_change_cbdata(struct obd_export *exp, struct lu_fid *fid,
109 ldlm_iterator_t it, void *data);
110 int mdc_intent_lock(struct obd_export *exp,
112 void *lmm, int lmmsize,
113 struct lookup_intent *, int,
114 struct ptlrpc_request **reqp,
115 ldlm_blocking_callback cb_blocking, int extra_lock_flags);
116 int mdc_enqueue(struct obd_export *exp,
118 struct lookup_intent *it,
120 struct md_op_data *op_data,
121 struct lustre_handle *lockh,
124 ldlm_completion_callback cb_completion,
125 ldlm_blocking_callback cb_blocking,
126 void *cb_data, int extra_lock_flags);
128 /* mdc/mdc_request.c */
129 int mdc_init_ea_size(struct obd_export *exp, int easize, int def_easzie,
132 int mdc_getstatus(struct obd_export *exp, struct lu_fid *rootfid);
133 int mdc_getattr(struct obd_export *exp, struct lu_fid *fid,
134 obd_valid valid, int ea_size,
135 struct ptlrpc_request **request);
136 int mdc_getattr_name(struct obd_export *exp, struct lu_fid *fid,
137 const char *filename, int namelen, obd_valid valid,
138 int ea_size, struct ptlrpc_request **request);
139 int mdc_setattr(struct obd_export *exp, struct md_op_data *op_data,
140 struct iattr *iattr, void *ea, int ealen, void *ea2, int ea2len,
141 struct ptlrpc_request **request);
142 int mdc_setxattr(struct obd_export *exp, struct lu_fid *fid,
143 obd_valid valid, const char *xattr_name,
144 const char *input, int input_size,
145 int output_size, int flags,
146 struct ptlrpc_request **request);
147 int mdc_getxattr(struct obd_export *exp, struct lu_fid *fid,
148 obd_valid valid, const char *xattr_name,
149 const char *input, int input_size,
150 int output_size, int flags, struct ptlrpc_request **request);
151 int mdc_open(struct obd_export *exp, obd_id ino, int type, int flags,
152 struct lov_mds_md *lmm, int lmm_size, struct lustre_handle *fh,
153 struct ptlrpc_request **);
155 struct obd_client_handle;
157 int mdc_get_lustre_md(struct obd_export *md_exp, struct ptlrpc_request *req,
158 int offset, struct obd_export *dt_exp, struct lustre_md *md);
160 int mdc_free_lustre_md(struct obd_export *exp, struct lustre_md *md);
162 int mdc_set_open_replay_data(struct obd_export *exp,
163 struct obd_client_handle *och,
164 struct ptlrpc_request *open_req);
166 int mdc_clear_open_replay_data(struct obd_export *exp,
167 struct obd_client_handle *och);
169 int mdc_close(struct obd_export *, struct md_op_data *,
170 struct obd_client_handle *, struct ptlrpc_request **);
172 int mdc_readpage(struct obd_export *exp, struct lu_fid *fid,
173 __u64 offset, struct page *, struct ptlrpc_request **);
175 int mdc_create(struct obd_export *exp, struct md_op_data *op_data,
176 const void *data, int datalen, int mode, __u32 uid,
177 __u32 gid, __u32 cap_effective, __u64 rdev,
178 struct ptlrpc_request **request);
180 int mdc_unlink(struct obd_export *exp, struct md_op_data *op_data,
181 struct ptlrpc_request **request);
183 int mdc_link(struct obd_export *exp, struct md_op_data *op_data,
184 struct ptlrpc_request **);
186 int mdc_rename(struct obd_export *exp, struct md_op_data *op_data,
187 const char *old, int oldlen, const char *new, int newlen,
188 struct ptlrpc_request **request);
190 int mdc_sync(struct obd_export *exp, struct lu_fid *fid,
191 struct ptlrpc_request **);
193 int mdc_lock_match(struct obd_export *exp, int flags,
194 struct lu_fid *fid, ldlm_type_t type,
195 ldlm_policy_data_t *policy, ldlm_mode_t mode,
196 struct lustre_handle *lockh);
198 int mdc_cancel_unused(struct obd_export *exp, struct lu_fid *fid,
199 int flags, void *opaque);
201 int mdc_done_writing(struct obd_export *exp, struct md_op_data *op_data);