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/*
* GPL HEADER START
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 only,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License version 2 for more details (a copy is included
* in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU General Public License
* version 2 along with this program; If not, see
* http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*
* GPL HEADER END
*/
/*
* Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
* Copyright (c) 2011, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
* Lustre is a trademark of Sun Microsystems, Inc.
*/
#ifndef _MDC_INTERNAL_H
#define _MDC_INTERNAL_H
#include "../include/lustre_mdc.h"
#include "../include/lustre_mds.h"
#if defined CONFIG_PROC_FS
void lprocfs_mdc_init_vars(struct lprocfs_static_vars *lvars);
#else
static inline void lprocfs_mdc_init_vars(struct lprocfs_static_vars *lvars)
{
memset(lvars, 0, sizeof(*lvars));
}
#endif
void mdc_pack_body(struct ptlrpc_request *req, const struct lu_fid *fid,
struct obd_capa *oc, __u64 valid, int ea_size,
__u32 suppgid, int flags);
void mdc_pack_capa(struct ptlrpc_request *req,
const struct req_msg_field *field, struct obd_capa *oc);
int mdc_pack_req(struct ptlrpc_request *req, int version, int opc);
void mdc_is_subdir_pack(struct ptlrpc_request *req, const struct lu_fid *pfid,
const struct lu_fid *cfid, int flags);
void mdc_swap_layouts_pack(struct ptlrpc_request *req,
struct md_op_data *op_data);
void mdc_readdir_pack(struct ptlrpc_request *req, __u64 pgoff, __u32 size,
const struct lu_fid *fid, struct obd_capa *oc);
void mdc_getattr_pack(struct ptlrpc_request *req, __u64 valid, int flags,
struct md_op_data *data, int ea_size);
void mdc_setattr_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
void *ea, int ealen, void *ea2, int ea2len);
void mdc_create_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
const void *data, int datalen, __u32 mode, __u32 uid,
__u32 gid, cfs_cap_t capability, __u64 rdev);
void mdc_open_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
__u32 mode, __u64 rdev, __u64 flags, const void *data,
int datalen);
void mdc_unlink_pack(struct ptlrpc_request *req, struct md_op_data *op_data);
void mdc_getxattr_pack(struct ptlrpc_request *req, struct md_op_data *op_data);
void mdc_link_pack(struct ptlrpc_request *req, struct md_op_data *op_data);
void mdc_rename_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
const char *old, int oldlen, const char *new, int newlen);
void mdc_close_pack(struct ptlrpc_request *req, struct md_op_data *op_data);
int mdc_enter_request(struct client_obd *cli);
void mdc_exit_request(struct client_obd *cli);
/* mdc/mdc_locks.c */
int mdc_set_lock_data(struct obd_export *exp,
__u64 *lockh, void *data, __u64 *bits);
int mdc_null_inode(struct obd_export *exp, const struct lu_fid *fid);
int mdc_find_cbdata(struct obd_export *exp, const struct lu_fid *fid,
ldlm_iterator_t it, void *data);
int mdc_intent_lock(struct obd_export *exp,
struct md_op_data *,
void *lmm, int lmmsize,
struct lookup_intent *, int,
struct ptlrpc_request **reqp,
ldlm_blocking_callback cb_blocking,
__u64 extra_lock_flags);
int mdc_enqueue(struct obd_export *exp, struct ldlm_enqueue_info *einfo,
struct lookup_intent *it, struct md_op_data *op_data,
struct lustre_handle *lockh, void *lmm, int lmmsize,
struct ptlrpc_request **req, __u64 extra_lock_flags);
int mdc_resource_get_unused(struct obd_export *exp, const struct lu_fid *fid,
struct list_head *cancels, ldlm_mode_t mode,
__u64 bits);
/* mdc/mdc_request.c */
int mdc_fid_alloc(struct obd_export *exp, struct lu_fid *fid,
struct md_op_data *op_data);
int mdc_open(struct obd_export *exp, u64 ino, int type, int flags,
struct lov_mds_md *lmm, int lmm_size, struct lustre_handle *fh,
struct ptlrpc_request **);
struct obd_client_handle;
int mdc_get_lustre_md(struct obd_export *md_exp, struct ptlrpc_request *req,
struct obd_export *dt_exp, struct obd_export *lmv_exp,
struct lustre_md *md);
int mdc_free_lustre_md(struct obd_export *exp, struct lustre_md *md);
int mdc_set_open_replay_data(struct obd_export *exp,
struct obd_client_handle *och,
struct lookup_intent *it);
int mdc_clear_open_replay_data(struct obd_export *exp,
struct obd_client_handle *och);
void mdc_commit_open(struct ptlrpc_request *req);
void mdc_replay_open(struct ptlrpc_request *req);
int mdc_create(struct obd_export *exp, struct md_op_data *op_data,
const void *data, int datalen, int mode, __u32 uid, __u32 gid,
cfs_cap_t capability, __u64 rdev,
struct ptlrpc_request **request);
int mdc_link(struct obd_export *exp, struct md_op_data *op_data,
struct ptlrpc_request **request);
int mdc_rename(struct obd_export *exp, struct md_op_data *op_data,
const char *old, int oldlen, const char *new, int newlen,
struct ptlrpc_request **request);
int mdc_setattr(struct obd_export *exp, struct md_op_data *op_data,
void *ea, int ealen, void *ea2, int ea2len,
struct ptlrpc_request **request, struct md_open_data **mod);
int mdc_unlink(struct obd_export *exp, struct md_op_data *op_data,
struct ptlrpc_request **request);
int mdc_cancel_unused(struct obd_export *exp, const struct lu_fid *fid,
ldlm_policy_data_t *policy, ldlm_mode_t mode,
ldlm_cancel_flags_t flags, void *opaque);
static inline void mdc_set_capa_size(struct ptlrpc_request *req,
const struct req_msg_field *field,
struct obd_capa *oc)
{
if (oc == NULL)
req_capsule_set_size(&req->rq_pill, field, RCL_CLIENT, 0);
else
/* it is already calculated as sizeof struct obd_capa */
;
}
int mdc_revalidate_lock(struct obd_export *exp, struct lookup_intent *it,
struct lu_fid *fid, __u64 *bits);
int mdc_intent_getattr_async(struct obd_export *exp,
struct md_enqueue_info *minfo,
struct ldlm_enqueue_info *einfo);
ldlm_mode_t mdc_lock_match(struct obd_export *exp, __u64 flags,
const struct lu_fid *fid, ldlm_type_t type,
ldlm_policy_data_t *policy, ldlm_mode_t mode,
struct lustre_handle *lockh);
static inline int mdc_prep_elc_req(struct obd_export *exp,
struct ptlrpc_request *req, int opc,
struct list_head *cancels, int count)
{
return ldlm_prep_elc_req(exp, req, LUSTRE_MDS_VERSION, opc, 0, cancels,
count);
}
#endif
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