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);
59 void mdc_file_encctx_pack(struct ptlrpc_request *req,
60 const void *encctx, size_t encctx_size);
61 void mdc_file_sepol_pack(struct ptlrpc_request *req);
63 void mdc_unlink_pack(struct ptlrpc_request *req, struct md_op_data *op_data);
64 void mdc_getxattr_pack(struct ptlrpc_request *req, struct md_op_data *op_data);
65 void mdc_link_pack(struct ptlrpc_request *req, struct md_op_data *op_data);
66 void mdc_rename_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
67 const char *old, size_t oldlen,
68 const char *new, size_t newlen);
69 void mdc_migrate_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
70 const char *name, size_t namelen);
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 const struct lustre_handle *lockh,
76 void *data, __u64 *bits);
78 int mdc_null_inode(struct obd_export *exp, const struct lu_fid *fid);
80 int mdc_intent_lock(struct obd_export *exp,
81 struct md_op_data *op_data,
82 struct lookup_intent *it,
83 struct ptlrpc_request **reqp,
84 ldlm_blocking_callback cb_blocking,
85 __u64 extra_lock_flags);
87 int mdc_enqueue(struct obd_export *exp, struct ldlm_enqueue_info *einfo,
88 const union ldlm_policy_data *policy,
89 struct md_op_data *op_data,
90 struct lustre_handle *lockh, __u64 extra_lock_flags);
91 int mdc_resource_get_unused_res(struct obd_export *exp,
92 struct ldlm_res_id *res_id,
93 struct list_head *cancels,
94 enum ldlm_mode mode, __u64 bits);
95 int mdc_resource_get_unused(struct obd_export *exp, const struct lu_fid *fid,
96 struct list_head *cancels, enum ldlm_mode mode,
98 int mdc_save_lovea(struct ptlrpc_request *req,
99 const struct req_msg_field *field,
100 void *data, u32 size);
101 /* mdc/mdc_request.c */
102 int mdc_fid_alloc(const struct lu_env *env, struct obd_export *exp,
103 struct lu_fid *fid, struct md_op_data *op_data);
104 int mdc_setup(struct obd_device *obd, struct lustre_cfg *cfg);
106 struct obd_client_handle;
108 int mdc_get_lustre_md(struct obd_export *md_exp, struct ptlrpc_request *req,
109 struct obd_export *dt_exp, struct obd_export *lmv_exp,
110 struct lustre_md *md);
112 int mdc_free_lustre_md(struct obd_export *exp, struct lustre_md *md);
114 int mdc_set_open_replay_data(struct obd_export *exp,
115 struct obd_client_handle *och,
116 struct lookup_intent *it);
118 int mdc_clear_open_replay_data(struct obd_export *exp,
119 struct obd_client_handle *och);
120 void mdc_commit_open(struct ptlrpc_request *req);
121 void mdc_replay_open(struct ptlrpc_request *req);
123 int mdc_create(struct obd_export *exp, struct md_op_data *op_data,
124 const void *data, size_t datalen,
125 umode_t mode, uid_t uid, gid_t gid,
126 cfs_cap_t capability, __u64 rdev,
127 struct ptlrpc_request **request);
128 int mdc_link(struct obd_export *exp, struct md_op_data *op_data,
129 struct ptlrpc_request **request);
130 int mdc_rename(struct obd_export *exp, struct md_op_data *op_data,
131 const char *old, size_t oldlen, const char *new, size_t newlen,
132 struct ptlrpc_request **request);
133 int mdc_setattr(struct obd_export *exp, struct md_op_data *op_data,
134 void *ea, size_t ealen, struct ptlrpc_request **request);
135 int mdc_unlink(struct obd_export *exp, struct md_op_data *op_data,
136 struct ptlrpc_request **request);
137 int mdc_file_resync(struct obd_export *exp, struct md_op_data *data);
138 int mdc_cancel_unused(struct obd_export *exp, const struct lu_fid *fid,
139 union ldlm_policy_data *policy, enum ldlm_mode mode,
140 enum ldlm_cancel_flags flags, void *opaque);
142 int mdc_revalidate_lock(struct obd_export *exp, struct lookup_intent *it,
143 struct lu_fid *fid, __u64 *bits);
145 int mdc_intent_getattr_async(struct obd_export *exp,
146 struct md_enqueue_info *minfo);
148 enum ldlm_mode mdc_lock_match(struct obd_export *exp, __u64 flags,
149 const struct lu_fid *fid, enum ldlm_type type,
150 union ldlm_policy_data *policy,
151 enum ldlm_mode mode, struct lustre_handle *lockh);
154 #define MDC_CHANGELOG_DEV_COUNT LMV_MAX_STRIPE_COUNT
155 #define MDC_CHANGELOG_DEV_NAME "changelog"
156 extern struct class *mdc_changelog_class;
157 extern dev_t mdc_changelog_dev;
158 extern struct idr mdc_changelog_minor_idr;
160 int mdc_changelog_cdev_init(struct obd_device *obd);
162 void mdc_changelog_cdev_finish(struct obd_device *obd);
164 static inline int mdc_prep_elc_req(struct obd_export *exp,
165 struct ptlrpc_request *req, int opc,
166 struct list_head *cancels, int count)
168 return ldlm_prep_elc_req(exp, req, LUSTRE_MDS_VERSION, opc, 0, cancels,
172 #ifdef CONFIG_LUSTRE_FS_POSIX_ACL
173 int mdc_unpack_acl(struct ptlrpc_request *req, struct lustre_md *md);
176 int mdc_unpack_acl(struct ptlrpc_request *req, struct lustre_md *md)
182 static inline unsigned long hash_x_index(__u64 hash, int hash64)
184 if (BITS_PER_LONG == 32 && hash64)
186 /* save hash 0 with hash 1 */
187 return ~0UL - (hash + !hash);
191 extern struct lu_device_type mdc_device_type;
192 int mdc_ldlm_blocking_ast(struct ldlm_lock *dlmlock,
193 struct ldlm_lock_desc *new, void *data, int flag);
194 int mdc_ldlm_glimpse_ast(struct ldlm_lock *dlmlock, void *data);
195 int mdc_fill_lvb(struct ptlrpc_request *req, struct ost_lvb *lvb);
197 /* the minimum inline repsize should be PAGE_SIZE at least */
198 #define MDC_DOM_DEF_INLINE_REPSIZE max(8192UL, PAGE_SIZE)
199 #define MDC_DOM_MAX_INLINE_REPSIZE XATTR_SIZE_MAX