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6 * This program is free software; you can redistribute it and/or modify
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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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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/
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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 u64 valid, size_t ea_size, u32 suppgid, u32 flags);
48 void mdc_swap_layouts_pack(struct ptlrpc_request *req,
49 struct md_op_data *op_data);
50 void mdc_readdir_pack(struct ptlrpc_request *req, __u64 pgoff, size_t size,
51 const struct lu_fid *fid);
52 void mdc_getattr_pack(struct ptlrpc_request *req, __u64 valid, __u32 flags,
53 struct md_op_data *data, size_t ea_size);
54 void mdc_setattr_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
55 void *ea, size_t ealen);
56 void mdc_create_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
57 const void *data, size_t datalen, umode_t mode,
58 uid_t uid, gid_t gid, cfs_cap_t capability, __u64 rdev);
59 void mdc_open_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
60 umode_t mode, __u64 rdev, __u64 flags,
61 const void *data, size_t datalen);
62 void mdc_unlink_pack(struct ptlrpc_request *req, struct md_op_data *op_data);
63 void mdc_getxattr_pack(struct ptlrpc_request *req, struct md_op_data *op_data);
64 void mdc_link_pack(struct ptlrpc_request *req, struct md_op_data *op_data);
65 void mdc_rename_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
66 const char *old, size_t oldlen,
67 const char *new, size_t newlen);
68 void mdc_close_pack(struct ptlrpc_request *req, struct md_op_data *op_data);
71 int mdc_set_lock_data(struct obd_export *exp,
72 __u64 *lockh, void *data, __u64 *bits);
74 int mdc_null_inode(struct obd_export *exp, const struct lu_fid *fid);
76 int mdc_intent_lock(struct obd_export *exp,
77 struct md_op_data *op_data,
78 struct lookup_intent *it,
79 struct ptlrpc_request **reqp,
80 ldlm_blocking_callback cb_blocking,
81 __u64 extra_lock_flags);
83 int mdc_enqueue(struct obd_export *exp, struct ldlm_enqueue_info *einfo,
84 const union ldlm_policy_data *policy,
85 struct lookup_intent *it, struct md_op_data *op_data,
86 struct lustre_handle *lockh, __u64 extra_lock_flags);
88 int mdc_resource_get_unused(struct obd_export *exp, const struct lu_fid *fid,
89 struct list_head *cancels, enum ldlm_mode mode,
91 /* mdc/mdc_request.c */
92 int mdc_fid_alloc(const struct lu_env *env, struct obd_export *exp,
93 struct lu_fid *fid, struct md_op_data *op_data);
95 struct obd_client_handle;
97 int mdc_get_lustre_md(struct obd_export *md_exp, struct ptlrpc_request *req,
98 struct obd_export *dt_exp, struct obd_export *lmv_exp,
99 struct lustre_md *md);
101 int mdc_free_lustre_md(struct obd_export *exp, struct lustre_md *md);
103 int mdc_set_open_replay_data(struct obd_export *exp,
104 struct obd_client_handle *och,
105 struct lookup_intent *it);
107 int mdc_clear_open_replay_data(struct obd_export *exp,
108 struct obd_client_handle *och);
109 void mdc_commit_open(struct ptlrpc_request *req);
110 void mdc_replay_open(struct ptlrpc_request *req);
112 int mdc_create(struct obd_export *exp, struct md_op_data *op_data,
113 const void *data, size_t datalen,
114 umode_t mode, uid_t uid, gid_t gid,
115 cfs_cap_t capability, __u64 rdev,
116 struct ptlrpc_request **request);
117 int mdc_link(struct obd_export *exp, struct md_op_data *op_data,
118 struct ptlrpc_request **request);
119 int mdc_rename(struct obd_export *exp, struct md_op_data *op_data,
120 const char *old, size_t oldlen, const char *new, size_t newlen,
121 struct ptlrpc_request **request);
122 int mdc_setattr(struct obd_export *exp, struct md_op_data *op_data,
123 void *ea, size_t ealen, struct ptlrpc_request **request);
124 int mdc_unlink(struct obd_export *exp, struct md_op_data *op_data,
125 struct ptlrpc_request **request);
126 int mdc_cancel_unused(struct obd_export *exp, const struct lu_fid *fid,
127 union ldlm_policy_data *policy, enum ldlm_mode mode,
128 enum ldlm_cancel_flags flags, void *opaque);
130 int mdc_revalidate_lock(struct obd_export *exp, struct lookup_intent *it,
131 struct lu_fid *fid, __u64 *bits);
133 int mdc_intent_getattr_async(struct obd_export *exp,
134 struct md_enqueue_info *minfo);
136 enum ldlm_mode mdc_lock_match(struct obd_export *exp, __u64 flags,
137 const struct lu_fid *fid, enum ldlm_type type,
138 union ldlm_policy_data *policy,
139 enum ldlm_mode mode, struct lustre_handle *lockh);
141 static inline int mdc_prep_elc_req(struct obd_export *exp,
142 struct ptlrpc_request *req, int opc,
143 struct list_head *cancels, int count)
145 return ldlm_prep_elc_req(exp, req, LUSTRE_MDS_VERSION, opc, 0, cancels,
149 static inline unsigned long hash_x_index(__u64 hash, int hash64)
151 if (BITS_PER_LONG == 32 && hash64)
153 /* save hash 0 with hash 1 */
154 return ~0UL - (hash + !hash);