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, 2015 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 "../include/lustre_mdc.h"
38 void lprocfs_mdc_init_vars(struct lprocfs_static_vars *lvars);
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, void *ea2, size_t ea2len);
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, uid_t uid,
52 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, const void *data,
56 void mdc_unlink_pack(struct ptlrpc_request *req, struct md_op_data *op_data);
57 void mdc_link_pack(struct ptlrpc_request *req, struct md_op_data *op_data);
58 void mdc_rename_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
59 const char *old, size_t oldlen,
60 const char *new, size_t newlen);
61 void mdc_close_pack(struct ptlrpc_request *req, struct md_op_data *op_data);
64 int mdc_set_lock_data(struct obd_export *exp,
65 const struct lustre_handle *lockh,
66 void *data, __u64 *bits);
68 int mdc_null_inode(struct obd_export *exp, const struct lu_fid *fid);
70 int mdc_intent_lock(struct obd_export *exp,
71 struct md_op_data *op_data,
72 struct lookup_intent *it,
73 struct ptlrpc_request **reqp,
74 ldlm_blocking_callback cb_blocking,
75 __u64 extra_lock_flags);
77 int mdc_enqueue(struct obd_export *exp, struct ldlm_enqueue_info *einfo,
78 const ldlm_policy_data_t *policy,
79 struct lookup_intent *it, struct md_op_data *op_data,
80 struct lustre_handle *lockh, __u64 extra_lock_flags);
82 int mdc_resource_get_unused(struct obd_export *exp, const struct lu_fid *fid,
83 struct list_head *cancels, enum ldlm_mode mode,
85 /* mdc/mdc_request.c */
86 int mdc_fid_alloc(const struct lu_env *env, struct obd_export *exp,
87 struct lu_fid *fid, struct md_op_data *op_data);
88 struct obd_client_handle;
90 int mdc_set_open_replay_data(struct obd_export *exp,
91 struct obd_client_handle *och,
92 struct lookup_intent *it);
94 void mdc_commit_open(struct ptlrpc_request *req);
95 void mdc_replay_open(struct ptlrpc_request *req);
97 int mdc_create(struct obd_export *exp, struct md_op_data *op_data,
98 const void *data, size_t datalen, umode_t mode, uid_t uid,
99 gid_t gid, cfs_cap_t capability, __u64 rdev,
100 struct ptlrpc_request **request);
101 int mdc_link(struct obd_export *exp, struct md_op_data *op_data,
102 struct ptlrpc_request **request);
103 int mdc_rename(struct obd_export *exp, struct md_op_data *op_data,
104 const char *old, size_t oldlen,
105 const char *new, size_t newlen,
106 struct ptlrpc_request **request);
107 int mdc_setattr(struct obd_export *exp, struct md_op_data *op_data,
108 void *ea, size_t ealen, void *ea2, size_t ea2len,
109 struct ptlrpc_request **request, struct md_open_data **mod);
110 int mdc_unlink(struct obd_export *exp, struct md_op_data *op_data,
111 struct ptlrpc_request **request);
112 int mdc_cancel_unused(struct obd_export *exp, const struct lu_fid *fid,
113 ldlm_policy_data_t *policy, enum ldlm_mode mode,
114 enum ldlm_cancel_flags flags, void *opaque);
116 int mdc_revalidate_lock(struct obd_export *exp, struct lookup_intent *it,
117 struct lu_fid *fid, __u64 *bits);
119 int mdc_intent_getattr_async(struct obd_export *exp,
120 struct md_enqueue_info *minfo,
121 struct ldlm_enqueue_info *einfo);
123 enum ldlm_mode mdc_lock_match(struct obd_export *exp, __u64 flags,
124 const struct lu_fid *fid, enum ldlm_type type,
125 ldlm_policy_data_t *policy, enum ldlm_mode mode,
126 struct lustre_handle *lockh);
128 static inline int mdc_prep_elc_req(struct obd_export *exp,
129 struct ptlrpc_request *req, int opc,
130 struct list_head *cancels, int count)
132 return ldlm_prep_elc_req(exp, req, LUSTRE_MDS_VERSION, opc, 0, cancels,
136 static inline unsigned long hash_x_index(__u64 hash, int hash64)
138 if (BITS_PER_LONG == 32 && hash64)
140 /* save hash 0 with hash 1 */
141 return ~0UL - (hash + !hash);