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, 2017, 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>
38 int mdc_tunables_init(struct obd_device *obd);
40 void mdc_pack_body(struct ptlrpc_request *req, const struct lu_fid *fid,
41 u64 valid, size_t ea_size, u32 suppgid, u32 flags);
42 void mdc_swap_layouts_pack(struct ptlrpc_request *req,
43 struct md_op_data *op_data);
44 void mdc_readdir_pack(struct ptlrpc_request *req, __u64 pgoff, size_t size,
45 const struct lu_fid *fid);
46 void mdc_getattr_pack(struct ptlrpc_request *req, __u64 valid, __u32 flags,
47 struct md_op_data *data, size_t ea_size);
48 void mdc_setattr_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
49 void *ea, size_t ealen);
50 void mdc_create_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
51 const void *data, size_t datalen, umode_t mode,
52 uid_t uid, gid_t gid, cfs_cap_t capability, __u64 rdev);
53 void mdc_open_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
54 umode_t mode, __u64 rdev, __u64 flags,
55 const void *data, size_t datalen);
56 void mdc_file_secctx_pack(struct ptlrpc_request *req,
57 const char *secctx_name,
58 const void *secctx, size_t secctx_size);
60 void mdc_unlink_pack(struct ptlrpc_request *req, struct md_op_data *op_data);
61 void mdc_getxattr_pack(struct ptlrpc_request *req, struct md_op_data *op_data);
62 void mdc_link_pack(struct ptlrpc_request *req, struct md_op_data *op_data);
63 void mdc_rename_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
64 const char *old, size_t oldlen,
65 const char *new, size_t newlen);
66 void mdc_migrate_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
67 const char *name, size_t namelen);
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 int mdc_save_lovea(struct ptlrpc_request *req,
93 const struct req_msg_field *field,
94 void *data, u32 size);
95 /* mdc/mdc_request.c */
96 int mdc_fid_alloc(const struct lu_env *env, struct obd_export *exp,
97 struct lu_fid *fid, struct md_op_data *op_data);
98 int mdc_setup(struct obd_device *obd, struct lustre_cfg *cfg);
99 int mdc_process_config(struct obd_device *obd, size_t len, void *buf);
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, struct ptlrpc_request **request);
130 int mdc_unlink(struct obd_export *exp, struct md_op_data *op_data,
131 struct ptlrpc_request **request);
132 int mdc_file_resync(struct obd_export *exp, struct md_op_data *data);
133 int mdc_cancel_unused(struct obd_export *exp, const struct lu_fid *fid,
134 union ldlm_policy_data *policy, enum ldlm_mode mode,
135 enum ldlm_cancel_flags flags, void *opaque);
137 int mdc_revalidate_lock(struct obd_export *exp, struct lookup_intent *it,
138 struct lu_fid *fid, __u64 *bits);
140 int mdc_intent_getattr_async(struct obd_export *exp,
141 struct md_enqueue_info *minfo);
143 enum ldlm_mode mdc_lock_match(struct obd_export *exp, __u64 flags,
144 const struct lu_fid *fid, enum ldlm_type type,
145 union ldlm_policy_data *policy,
146 enum ldlm_mode mode, struct lustre_handle *lockh);
149 int mdc_changelog_cdev_init(struct obd_device *obd);
151 void mdc_changelog_cdev_finish(struct obd_device *obd);
153 static inline int mdc_prep_elc_req(struct obd_export *exp,
154 struct ptlrpc_request *req, int opc,
155 struct list_head *cancels, int count)
157 return ldlm_prep_elc_req(exp, req, LUSTRE_MDS_VERSION, opc, 0, cancels,
161 static inline unsigned long hash_x_index(__u64 hash, int hash64)
163 if (BITS_PER_LONG == 32 && hash64)
165 /* save hash 0 with hash 1 */
166 return ~0UL - (hash + !hash);
170 extern struct lu_device_type mdc_device_type;
171 int mdc_ldlm_blocking_ast(struct ldlm_lock *dlmlock,
172 struct ldlm_lock_desc *new, void *data, int flag);
173 int mdc_ldlm_glimpse_ast(struct ldlm_lock *dlmlock, void *data);
174 int mdc_fill_lvb(struct ptlrpc_request *req, struct ost_lvb *lvb);
176 #define MDC_DOM_DEF_INLINE_REPSIZE 8192
177 #define MDC_DOM_MAX_INLINE_REPSIZE XATTR_SIZE_MAX