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
17 * version 2 along with this program; If not, see
18 * http://www.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2011, 2016, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
30 * Lustre is a trademark of Sun Microsystems, Inc.
33 #ifndef _MDC_INTERNAL_H
34 #define _MDC_INTERNAL_H
36 #include <lustre_mdc.h>
39 extern struct lprocfs_vars lprocfs_mdc_obd_vars[];
42 void mdc_pack_body(struct ptlrpc_request *req, const struct lu_fid *fid,
43 u64 valid, size_t ea_size, u32 suppgid, u32 flags);
44 void mdc_swap_layouts_pack(struct ptlrpc_request *req,
45 struct md_op_data *op_data);
46 void mdc_readdir_pack(struct ptlrpc_request *req, __u64 pgoff, size_t size,
47 const struct lu_fid *fid);
48 void mdc_getattr_pack(struct ptlrpc_request *req, __u64 valid, __u32 flags,
49 struct md_op_data *data, size_t ea_size);
50 void mdc_setattr_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
51 void *ea, size_t ealen);
52 void mdc_create_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
53 const void *data, size_t datalen, umode_t mode,
54 uid_t uid, gid_t gid, cfs_cap_t capability, __u64 rdev);
55 void mdc_open_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
56 umode_t mode, __u64 rdev, __u64 flags,
57 const void *data, size_t datalen);
58 void mdc_file_secctx_pack(struct ptlrpc_request *req,
59 const char *secctx_name,
60 const void *secctx, size_t secctx_size);
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 const struct lustre_handle *lockh,
73 void *data, __u64 *bits);
75 int mdc_null_inode(struct obd_export *exp, const struct lu_fid *fid);
77 int mdc_intent_lock(struct obd_export *exp,
78 struct md_op_data *op_data,
79 struct lookup_intent *it,
80 struct ptlrpc_request **reqp,
81 ldlm_blocking_callback cb_blocking,
82 __u64 extra_lock_flags);
84 int mdc_enqueue(struct obd_export *exp, struct ldlm_enqueue_info *einfo,
85 const union ldlm_policy_data *policy,
86 struct md_op_data *op_data,
87 struct lustre_handle *lockh, __u64 extra_lock_flags);
89 int mdc_resource_get_unused(struct obd_export *exp, const struct lu_fid *fid,
90 struct list_head *cancels, enum ldlm_mode mode,
92 /* mdc/mdc_request.c */
93 int mdc_fid_alloc(const struct lu_env *env, struct obd_export *exp,
94 struct lu_fid *fid, struct md_op_data *op_data);
96 struct obd_client_handle;
98 int mdc_get_lustre_md(struct obd_export *md_exp, struct ptlrpc_request *req,
99 struct obd_export *dt_exp, struct obd_export *lmv_exp,
100 struct lustre_md *md);
102 int mdc_free_lustre_md(struct obd_export *exp, struct lustre_md *md);
104 int mdc_set_open_replay_data(struct obd_export *exp,
105 struct obd_client_handle *och,
106 struct lookup_intent *it);
108 int mdc_clear_open_replay_data(struct obd_export *exp,
109 struct obd_client_handle *och);
110 void mdc_commit_open(struct ptlrpc_request *req);
111 void mdc_replay_open(struct ptlrpc_request *req);
113 int mdc_create(struct obd_export *exp, struct md_op_data *op_data,
114 const void *data, size_t datalen,
115 umode_t mode, uid_t uid, gid_t gid,
116 cfs_cap_t capability, __u64 rdev,
117 struct ptlrpc_request **request);
118 int mdc_link(struct obd_export *exp, struct md_op_data *op_data,
119 struct ptlrpc_request **request);
120 int mdc_rename(struct obd_export *exp, struct md_op_data *op_data,
121 const char *old, size_t oldlen, const char *new, size_t newlen,
122 struct ptlrpc_request **request);
123 int mdc_setattr(struct obd_export *exp, struct md_op_data *op_data,
124 void *ea, size_t ealen, struct ptlrpc_request **request);
125 int mdc_unlink(struct obd_export *exp, struct md_op_data *op_data,
126 struct ptlrpc_request **request);
127 int mdc_cancel_unused(struct obd_export *exp, const struct lu_fid *fid,
128 union ldlm_policy_data *policy, enum ldlm_mode mode,
129 enum ldlm_cancel_flags flags, void *opaque);
131 int mdc_revalidate_lock(struct obd_export *exp, struct lookup_intent *it,
132 struct lu_fid *fid, __u64 *bits);
134 int mdc_intent_getattr_async(struct obd_export *exp,
135 struct md_enqueue_info *minfo);
137 enum ldlm_mode mdc_lock_match(struct obd_export *exp, __u64 flags,
138 const struct lu_fid *fid, enum ldlm_type type,
139 union ldlm_policy_data *policy,
140 enum ldlm_mode mode, struct lustre_handle *lockh);
142 static inline int mdc_prep_elc_req(struct obd_export *exp,
143 struct ptlrpc_request *req, int opc,
144 struct list_head *cancels, int count)
146 return ldlm_prep_elc_req(exp, req, LUSTRE_MDS_VERSION, opc, 0, cancels,
150 static inline unsigned long hash_x_index(__u64 hash, int hash64)
152 if (BITS_PER_LONG == 32 && hash64)
154 /* save hash 0 with hash 1 */
155 return ~0UL - (hash + !hash);