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/
32 #ifndef _MDC_INTERNAL_H
33 #define _MDC_INTERNAL_H
35 #include <lustre_mdc.h>
37 int mdc_tunables_init(struct obd_device *obd);
39 void mdc_pack_body(struct req_capsule *pill, const struct lu_fid *fid,
40 u64 valid, size_t ea_size, u32 suppgid, u32 flags);
41 void mdc_swap_layouts_pack(struct req_capsule *pill,
42 struct md_op_data *op_data);
43 void mdc_readdir_pack(struct req_capsule *pill, __u64 pgoff, size_t size,
44 const struct lu_fid *fid);
45 void mdc_getattr_pack(struct req_capsule *pill, __u64 valid, __u32 flags,
46 struct md_op_data *data, size_t ea_size);
47 void mdc_setattr_pack(struct req_capsule *pill, struct md_op_data *op_data,
48 void *ea, size_t ealen);
49 void mdc_create_pack(struct req_capsule *pill, struct md_op_data *op_data,
50 const void *data, size_t datalen, umode_t mode,
51 uid_t uid, gid_t gid, kernel_cap_t capability, u64 rdev);
52 void mdc_open_pack(struct req_capsule *pill, struct md_op_data *op_data,
53 umode_t mode, __u64 rdev, __u64 flags,
54 const void *data, size_t datalen);
55 void mdc_file_secctx_pack(struct req_capsule *pill,
56 const char *secctx_name,
57 const void *secctx, size_t secctx_size);
58 void mdc_file_encctx_pack(struct req_capsule *pill,
59 const void *encctx, size_t encctx_size);
60 void mdc_file_sepol_pack(struct req_capsule *pill);
62 void mdc_unlink_pack(struct req_capsule *pill, struct md_op_data *op_data);
63 void mdc_link_pack(struct req_capsule *pill, struct md_op_data *op_data);
64 void mdc_rename_pack(struct req_capsule *pill, struct md_op_data *op_data,
65 const char *old, size_t oldlen,
66 const char *new, size_t newlen);
67 void mdc_migrate_pack(struct req_capsule *pill, struct md_op_data *op_data,
68 const char *name, size_t namelen);
69 void mdc_close_pack(struct req_capsule *pill, struct md_op_data *op_data);
72 int mdc_set_lock_data(struct obd_export *exp,
73 const struct lustre_handle *lockh,
74 void *data, __u64 *bits);
76 int mdc_null_inode(struct obd_export *exp, const struct lu_fid *fid);
78 int mdc_intent_lock(struct obd_export *exp,
79 struct md_op_data *op_data,
80 struct lookup_intent *it,
81 struct ptlrpc_request **reqp,
82 ldlm_blocking_callback cb_blocking,
83 __u64 extra_lock_flags);
85 int mdc_enqueue(struct obd_export *exp, struct ldlm_enqueue_info *einfo,
86 const union ldlm_policy_data *policy,
87 struct md_op_data *op_data,
88 struct lustre_handle *lockh, __u64 extra_lock_flags);
89 int mdc_resource_get_unused_res(struct obd_export *exp,
90 struct ldlm_res_id *res_id,
91 struct list_head *cancels,
92 enum ldlm_mode mode, __u64 bits);
93 int mdc_resource_get_unused(struct obd_export *exp, const struct lu_fid *fid,
94 struct list_head *cancels, enum ldlm_mode mode,
96 /* mdc/mdc_request.c */
97 int mdc_fid_alloc(const struct lu_env *env, struct obd_export *exp,
98 struct lu_fid *fid, struct md_op_data *op_data);
99 int mdc_setup(struct obd_device *obd, struct lustre_cfg *cfg);
101 struct obd_client_handle;
103 int mdc_set_open_replay_data(struct obd_export *exp,
104 struct obd_client_handle *och,
105 struct lookup_intent *it);
107 void mdc_commit_open(struct ptlrpc_request *req);
108 void mdc_replay_open(struct ptlrpc_request *req);
110 int mdc_create(struct obd_export *exp, struct md_op_data *op_data,
111 const void *data, size_t datalen,
112 umode_t mode, uid_t uid, gid_t gid,
113 kernel_cap_t capability, __u64 rdev,
114 struct ptlrpc_request **request);
115 int mdc_link(struct obd_export *exp, struct md_op_data *op_data,
116 struct ptlrpc_request **request);
117 int mdc_rename(struct obd_export *exp, struct md_op_data *op_data,
118 const char *old, size_t oldlen, const char *new, size_t newlen,
119 struct ptlrpc_request **request);
120 int mdc_setattr(struct obd_export *exp, struct md_op_data *op_data,
121 void *ea, size_t ealen, struct ptlrpc_request **request);
122 int mdc_unlink(struct obd_export *exp, struct md_op_data *op_data,
123 struct ptlrpc_request **request);
124 int mdc_file_resync(struct obd_export *exp, struct md_op_data *data);
125 int mdc_cancel_unused(struct obd_export *exp, const struct lu_fid *fid,
126 union ldlm_policy_data *policy, enum ldlm_mode mode,
127 enum ldlm_cancel_flags flags, void *opaque);
129 int mdc_revalidate_lock(struct obd_export *exp, struct lookup_intent *it,
130 struct lu_fid *fid, __u64 *bits);
132 int mdc_intent_getattr_async(struct obd_export *exp,
133 struct md_enqueue_info *minfo);
135 enum ldlm_mode mdc_lock_match(struct obd_export *exp, __u64 flags,
136 const struct lu_fid *fid, enum ldlm_type type,
137 union ldlm_policy_data *policy,
138 enum ldlm_mode mode, struct lustre_handle *lockh);
141 #define MDC_CHANGELOG_DEV_COUNT LMV_MAX_STRIPE_COUNT
142 #define MDC_CHANGELOG_DEV_NAME "changelog"
143 extern struct class *mdc_changelog_class;
144 extern dev_t mdc_changelog_dev;
145 extern struct idr mdc_changelog_minor_idr;
147 int mdc_changelog_cdev_init(struct obd_device *obd);
149 void mdc_changelog_cdev_finish(struct obd_device *obd);
151 static inline int mdc_prep_elc_req(struct obd_export *exp,
152 struct ptlrpc_request *req, int opc,
153 struct list_head *cancels, int count)
155 return ldlm_prep_elc_req(exp, req, LUSTRE_MDS_VERSION, opc, 0, cancels,
159 #ifdef CONFIG_LUSTRE_FS_POSIX_ACL
160 int mdc_unpack_acl(struct req_capsule *pill, struct lustre_md *md);
163 int mdc_unpack_acl(struct req_capsule *pill, struct lustre_md *md)
169 static inline void mdc_body2lvb(struct mdt_body *body, struct ost_lvb *lvb)
171 LASSERT(body->mbo_valid & OBD_MD_DOM_SIZE);
172 lvb->lvb_mtime = body->mbo_mtime;
173 lvb->lvb_atime = body->mbo_atime;
174 lvb->lvb_ctime = body->mbo_ctime;
175 lvb->lvb_blocks = body->mbo_dom_blocks;
176 lvb->lvb_size = body->mbo_dom_size;
179 static inline unsigned long hash_x_index(__u64 hash, int hash64)
181 if (BITS_PER_LONG == 32 && hash64)
183 /* save hash 0 with hash 1 */
184 return ~0UL - (hash + !hash);
188 extern struct lu_device_type mdc_device_type;
189 int mdc_ldlm_blocking_ast(struct ldlm_lock *dlmlock,
190 struct ldlm_lock_desc *new, void *data, int flag);
191 int mdc_ldlm_glimpse_ast(struct ldlm_lock *dlmlock, void *data);
192 int mdc_fill_lvb(struct req_capsule *pill, struct ost_lvb *lvb);
194 /* the minimum inline repsize should be PAGE_SIZE at least */
195 #define MDC_DOM_DEF_INLINE_REPSIZE max(8192UL, PAGE_SIZE)
196 #define MDC_DOM_MAX_INLINE_REPSIZE XATTR_SIZE_MAX