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,
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13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
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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) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
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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>
43 extern struct lprocfs_vars lprocfs_mdc_obd_vars[];
46 void mdc_pack_body(struct ptlrpc_request *req, const struct lu_fid *fid,
47 struct obd_capa *oc, __u64 valid, size_t ea_size,
48 __u32 suppgid, __u32 flags);
49 void mdc_pack_capa(struct ptlrpc_request *req,
50 const struct req_msg_field *field, struct obd_capa *oc);
51 void mdc_swap_layouts_pack(struct ptlrpc_request *req,
52 struct md_op_data *op_data);
53 void mdc_readdir_pack(struct ptlrpc_request *req, __u64 pgoff, size_t size,
54 const struct lu_fid *fid, struct obd_capa *oc);
55 void mdc_getattr_pack(struct ptlrpc_request *req, __u64 valid, __u32 flags,
56 struct md_op_data *data, size_t ea_size);
57 void mdc_setattr_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
58 void *ea, size_t ealen, void *ea2, size_t ea2len);
59 void mdc_create_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
60 const void *data, size_t datalen, umode_t mode,
61 uid_t uid, gid_t gid, cfs_cap_t capability, __u64 rdev);
62 void mdc_open_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
63 umode_t mode, __u64 rdev, __u64 flags,
64 const void *data, size_t datalen);
65 void mdc_unlink_pack(struct ptlrpc_request *req, struct md_op_data *op_data);
66 void mdc_getxattr_pack(struct ptlrpc_request *req, struct md_op_data *op_data);
67 void mdc_link_pack(struct ptlrpc_request *req, struct md_op_data *op_data);
68 void mdc_rename_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
69 const char *old, size_t oldlen,
70 const char *new, size_t newlen);
71 void mdc_close_pack(struct ptlrpc_request *req, struct md_op_data *op_data);
74 int mdc_set_lock_data(struct obd_export *exp,
75 __u64 *lockh, void *data, __u64 *bits);
77 int mdc_null_inode(struct obd_export *exp, const struct lu_fid *fid);
79 int mdc_find_cbdata(struct obd_export *exp, const struct lu_fid *fid,
80 ldlm_iterator_t it, void *data);
82 int mdc_intent_lock(struct obd_export *exp,
83 struct md_op_data *op_data,
84 struct lookup_intent *it,
85 struct ptlrpc_request **reqp,
86 ldlm_blocking_callback cb_blocking,
87 __u64 extra_lock_flags);
89 int mdc_enqueue(struct obd_export *exp, struct ldlm_enqueue_info *einfo,
90 const union ldlm_policy_data *policy,
91 struct lookup_intent *it, struct md_op_data *op_data,
92 struct lustre_handle *lockh, __u64 extra_lock_flags);
94 int mdc_resource_get_unused(struct obd_export *exp, const struct lu_fid *fid,
95 struct list_head *cancels, ldlm_mode_t mode,
97 /* mdc/mdc_request.c */
98 int mdc_fid_alloc(const struct lu_env *env, struct obd_export *exp,
99 struct lu_fid *fid, struct md_op_data *op_data);
101 struct obd_client_handle;
103 int mdc_get_lustre_md(struct obd_export *md_exp, struct ptlrpc_request *req,
104 struct obd_export *dt_exp, struct obd_export *lmv_exp,
105 struct lustre_md *md);
107 int mdc_free_lustre_md(struct obd_export *exp, struct lustre_md *md);
109 int mdc_set_open_replay_data(struct obd_export *exp,
110 struct obd_client_handle *och,
111 struct lookup_intent *it);
113 int mdc_clear_open_replay_data(struct obd_export *exp,
114 struct obd_client_handle *och);
115 void mdc_commit_open(struct ptlrpc_request *req);
116 void mdc_replay_open(struct ptlrpc_request *req);
118 int mdc_create(struct obd_export *exp, struct md_op_data *op_data,
119 const void *data, size_t datalen,
120 umode_t mode, uid_t uid, gid_t gid,
121 cfs_cap_t capability, __u64 rdev,
122 struct ptlrpc_request **request);
123 int mdc_link(struct obd_export *exp, struct md_op_data *op_data,
124 struct ptlrpc_request **request);
125 int mdc_rename(struct obd_export *exp, struct md_op_data *op_data,
126 const char *old, size_t oldlen, const char *new, size_t newlen,
127 struct ptlrpc_request **request);
128 int mdc_setattr(struct obd_export *exp, struct md_op_data *op_data,
129 void *ea, size_t ealen, void *ea2, size_t ea2len,
130 struct ptlrpc_request **request, struct md_open_data **mod);
131 int mdc_unlink(struct obd_export *exp, struct md_op_data *op_data,
132 struct ptlrpc_request **request);
133 int mdc_cancel_unused(struct obd_export *exp, const struct lu_fid *fid,
134 ldlm_policy_data_t *policy, ldlm_mode_t mode,
135 ldlm_cancel_flags_t flags, void *opaque);
137 static inline void mdc_set_capa_size(struct ptlrpc_request *req,
138 const struct req_msg_field *field,
142 req_capsule_set_size(&req->rq_pill, field, RCL_CLIENT, 0);
144 /* it is already calculated as sizeof struct obd_capa */
148 int mdc_revalidate_lock(struct obd_export *exp, struct lookup_intent *it,
149 struct lu_fid *fid, __u64 *bits);
151 int mdc_intent_getattr_async(struct obd_export *exp,
152 struct md_enqueue_info *minfo,
153 struct ldlm_enqueue_info *einfo);
155 ldlm_mode_t mdc_lock_match(struct obd_export *exp, __u64 flags,
156 const struct lu_fid *fid, ldlm_type_t type,
157 ldlm_policy_data_t *policy, ldlm_mode_t mode,
158 struct lustre_handle *lockh);
160 static inline int mdc_prep_elc_req(struct obd_export *exp,
161 struct ptlrpc_request *req, int opc,
162 struct list_head *cancels, int count)
164 return ldlm_prep_elc_req(exp, req, LUSTRE_MDS_VERSION, opc, 0, cancels,
168 static inline unsigned long hash_x_index(__u64 hash, int hash64)
170 if (BITS_PER_LONG == 32 && hash64)
172 /* save hash 0 with hash 1 */
173 return ~0UL - (hash + !hash);