1/* 2 * GPL HEADER START 3 * 4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 5 * 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. 9 * 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). 15 * 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.sun.com/software/products/lustre/docs/GPLv2.pdf 19 * 20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, 21 * CA 95054 USA or visit www.sun.com if you need additional information or 22 * have any questions. 23 * 24 * GPL HEADER END 25 */ 26/* 27 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. 28 * Use is subject to license terms. 29 * 30 * Copyright (c) 2011, Intel Corporation. 31 */ 32/* 33 * This file is part of Lustre, http://www.lustre.org/ 34 * Lustre is a trademark of Sun Microsystems, Inc. 35 */ 36 37#ifndef _MDC_INTERNAL_H 38#define _MDC_INTERNAL_H 39 40#include "../include/lustre_mdc.h" 41#include "../include/lustre_mds.h" 42 43#if defined CONFIG_PROC_FS 44void lprocfs_mdc_init_vars(struct lprocfs_static_vars *lvars); 45#else 46static inline void lprocfs_mdc_init_vars(struct lprocfs_static_vars *lvars) 47{ 48 memset(lvars, 0, sizeof(*lvars)); 49} 50#endif 51 52void mdc_pack_body(struct ptlrpc_request *req, const struct lu_fid *fid, 53 struct obd_capa *oc, __u64 valid, int ea_size, 54 __u32 suppgid, int flags); 55void mdc_pack_capa(struct ptlrpc_request *req, 56 const struct req_msg_field *field, struct obd_capa *oc); 57int mdc_pack_req(struct ptlrpc_request *req, int version, int opc); 58void mdc_is_subdir_pack(struct ptlrpc_request *req, const struct lu_fid *pfid, 59 const struct lu_fid *cfid, int flags); 60void mdc_swap_layouts_pack(struct ptlrpc_request *req, 61 struct md_op_data *op_data); 62void mdc_readdir_pack(struct ptlrpc_request *req, __u64 pgoff, __u32 size, 63 const struct lu_fid *fid, struct obd_capa *oc); 64void mdc_getattr_pack(struct ptlrpc_request *req, __u64 valid, int flags, 65 struct md_op_data *data, int ea_size); 66void mdc_setattr_pack(struct ptlrpc_request *req, struct md_op_data *op_data, 67 void *ea, int ealen, void *ea2, int ea2len); 68void mdc_create_pack(struct ptlrpc_request *req, struct md_op_data *op_data, 69 const void *data, int datalen, __u32 mode, __u32 uid, 70 __u32 gid, cfs_cap_t capability, __u64 rdev); 71void mdc_open_pack(struct ptlrpc_request *req, struct md_op_data *op_data, 72 __u32 mode, __u64 rdev, __u64 flags, const void *data, 73 int datalen); 74void mdc_unlink_pack(struct ptlrpc_request *req, struct md_op_data *op_data); 75void mdc_getxattr_pack(struct ptlrpc_request *req, struct md_op_data *op_data); 76void mdc_link_pack(struct ptlrpc_request *req, struct md_op_data *op_data); 77void mdc_rename_pack(struct ptlrpc_request *req, struct md_op_data *op_data, 78 const char *old, int oldlen, const char *new, int newlen); 79void mdc_close_pack(struct ptlrpc_request *req, struct md_op_data *op_data); 80int mdc_enter_request(struct client_obd *cli); 81void mdc_exit_request(struct client_obd *cli); 82 83/* mdc/mdc_locks.c */ 84int mdc_set_lock_data(struct obd_export *exp, 85 __u64 *lockh, void *data, __u64 *bits); 86 87int mdc_null_inode(struct obd_export *exp, const struct lu_fid *fid); 88 89int mdc_find_cbdata(struct obd_export *exp, const struct lu_fid *fid, 90 ldlm_iterator_t it, void *data); 91 92int mdc_intent_lock(struct obd_export *exp, 93 struct md_op_data *, 94 void *lmm, int lmmsize, 95 struct lookup_intent *, int, 96 struct ptlrpc_request **reqp, 97 ldlm_blocking_callback cb_blocking, 98 __u64 extra_lock_flags); 99int mdc_enqueue(struct obd_export *exp, struct ldlm_enqueue_info *einfo, 100 struct lookup_intent *it, struct md_op_data *op_data, 101 struct lustre_handle *lockh, void *lmm, int lmmsize, 102 struct ptlrpc_request **req, __u64 extra_lock_flags); 103 104int mdc_resource_get_unused(struct obd_export *exp, const struct lu_fid *fid, 105 struct list_head *cancels, ldlm_mode_t mode, 106 __u64 bits); 107/* mdc/mdc_request.c */ 108int mdc_fid_alloc(struct obd_export *exp, struct lu_fid *fid, 109 struct md_op_data *op_data); 110 111int mdc_open(struct obd_export *exp, u64 ino, int type, int flags, 112 struct lov_mds_md *lmm, int lmm_size, struct lustre_handle *fh, 113 struct ptlrpc_request **); 114 115struct obd_client_handle; 116 117int mdc_get_lustre_md(struct obd_export *md_exp, struct ptlrpc_request *req, 118 struct obd_export *dt_exp, struct obd_export *lmv_exp, 119 struct lustre_md *md); 120 121int mdc_free_lustre_md(struct obd_export *exp, struct lustre_md *md); 122 123int mdc_set_open_replay_data(struct obd_export *exp, 124 struct obd_client_handle *och, 125 struct lookup_intent *it); 126 127int mdc_clear_open_replay_data(struct obd_export *exp, 128 struct obd_client_handle *och); 129void mdc_commit_open(struct ptlrpc_request *req); 130void mdc_replay_open(struct ptlrpc_request *req); 131 132int mdc_create(struct obd_export *exp, struct md_op_data *op_data, 133 const void *data, int datalen, int mode, __u32 uid, __u32 gid, 134 cfs_cap_t capability, __u64 rdev, 135 struct ptlrpc_request **request); 136int mdc_link(struct obd_export *exp, struct md_op_data *op_data, 137 struct ptlrpc_request **request); 138int mdc_rename(struct obd_export *exp, struct md_op_data *op_data, 139 const char *old, int oldlen, const char *new, int newlen, 140 struct ptlrpc_request **request); 141int mdc_setattr(struct obd_export *exp, struct md_op_data *op_data, 142 void *ea, int ealen, void *ea2, int ea2len, 143 struct ptlrpc_request **request, struct md_open_data **mod); 144int mdc_unlink(struct obd_export *exp, struct md_op_data *op_data, 145 struct ptlrpc_request **request); 146int mdc_cancel_unused(struct obd_export *exp, const struct lu_fid *fid, 147 ldlm_policy_data_t *policy, ldlm_mode_t mode, 148 ldlm_cancel_flags_t flags, void *opaque); 149 150static inline void mdc_set_capa_size(struct ptlrpc_request *req, 151 const struct req_msg_field *field, 152 struct obd_capa *oc) 153{ 154 if (oc == NULL) 155 req_capsule_set_size(&req->rq_pill, field, RCL_CLIENT, 0); 156 else 157 /* it is already calculated as sizeof struct obd_capa */ 158 ; 159} 160 161int mdc_revalidate_lock(struct obd_export *exp, struct lookup_intent *it, 162 struct lu_fid *fid, __u64 *bits); 163 164int mdc_intent_getattr_async(struct obd_export *exp, 165 struct md_enqueue_info *minfo, 166 struct ldlm_enqueue_info *einfo); 167 168ldlm_mode_t mdc_lock_match(struct obd_export *exp, __u64 flags, 169 const struct lu_fid *fid, ldlm_type_t type, 170 ldlm_policy_data_t *policy, ldlm_mode_t mode, 171 struct lustre_handle *lockh); 172 173static inline int mdc_prep_elc_req(struct obd_export *exp, 174 struct ptlrpc_request *req, int opc, 175 struct list_head *cancels, int count) 176{ 177 return ldlm_prep_elc_req(exp, req, LUSTRE_MDS_VERSION, opc, 0, cancels, 178 count); 179} 180 181#endif 182