X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Fmdc%2Fmdc_internal.h;h=1769f3eb82e1bbc9437ecd5841bbfa9f4712869b;hb=cb85c0364fd8323f4bb03c481660805da66aaf85;hp=6a0abe99b2b90b6ae8be83dbbce1232ddcb6fde6;hpb=350abc09880fc4cc1085f462258bf6e0f7b933f2;p=fs%2Flustre-release.git diff --git a/lustre/mdc/mdc_internal.h b/lustre/mdc/mdc_internal.h index 6a0abe9..1769f3e 100644 --- a/lustre/mdc/mdc_internal.h +++ b/lustre/mdc/mdc_internal.h @@ -1,85 +1,181 @@ -/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- - * vim:expandtab:shiftwidth=8:tabstop=8: +/* + * GPL HEADER START * - * Copyright (c) 2003 Cluster File Systems, Inc. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * - * This file is part of Lustre, http://www.lustre.org. + * 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. * - * Lustre is free software; you can redistribute it and/or - * modify it under the terms of version 2 of the GNU General Public - * License 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). * - * Lustre 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 for more details. + * 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 * - * You should have received a copy of the GNU General Public License - * along with Lustre; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * 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, 2013, 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 - -int mdc_packmd(struct obd_export *exp, struct lov_mds_md **lmmp, - struct lov_stripe_md *lsm); - -int mdc_unpackmd(struct obd_export *exp, struct lov_stripe_md **lsmp, - struct lov_mds_md *lmm, int lmm_size); - -void mdc_getattr_pack(struct lustre_msg *msg, int offset, - __u64 valid, int flags, struct mdc_op_data *data); - -void mdc_open_pack(struct lustre_msg *msg, int offset, - struct mdc_op_data *op_data, __u32 mode, - __u64 rdev, __u32 flags, const void *lmm, - int lmmlen, void *key, int keylen); -void mdc_readdir_pack(struct ptlrpc_request *req, int req_offset, - __u64 offset, __u32 size, struct lustre_id *mdc_id); -void mdc_close_pack(struct ptlrpc_request *req, int offset, struct obdo *oa, - __u64 valid, struct obd_client_handle *och); - -struct mdc_open_data { - struct obd_client_handle *mod_och; - struct ptlrpc_request *mod_open_req; - struct ptlrpc_request *mod_close_req; -}; - -struct mdc_rpc_lock { - struct semaphore rpcl_sem; - struct lookup_intent *rpcl_it; -}; - -static inline void mdc_init_rpc_lock(struct mdc_rpc_lock *lck) + +#ifndef _MDC_INTERNAL_H +#define _MDC_INTERNAL_H + +#include + +#ifdef LPROCFS +extern struct lprocfs_seq_vars lprocfs_mdc_obd_vars[]; +#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_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); + +/* 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 *op_data, + struct lookup_intent *it, + 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, + const union ldlm_policy_data *policy, + struct lookup_intent *it, struct md_op_data *op_data, + struct lustre_handle *lockh, __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(const struct lu_env *env, struct obd_export *exp, + struct lu_fid *fid, struct md_op_data *op_data); + +int mdc_open(struct obd_export *exp, obd_id 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) { - sema_init(&lck->rpcl_sem, 1); - lck->rpcl_it = NULL; + if (oc == NULL) + req_capsule_set_size(&req->rq_pill, field, RCL_CLIENT, 0); + else + /* it is already calculated as sizeof struct obd_capa */ + ; } -static inline void mdc_get_rpc_lock(struct mdc_rpc_lock *lck, - struct lookup_intent *it) +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) { - ENTRY; - down(&lck->rpcl_sem); - if (it) { - lck->rpcl_it = it; - } + return ldlm_prep_elc_req(exp, req, LUSTRE_MDS_VERSION, opc, 0, cancels, + count); } -static inline void mdc_put_rpc_lock(struct mdc_rpc_lock *lck, - struct lookup_intent *it) +static inline unsigned long hash_x_index(__u64 hash, int hash64) { - EXIT; - if (it == NULL) { - LASSERT(it == lck->rpcl_it); - up(&lck->rpcl_sem); - return; - } - if (it) { - LASSERT(it == lck->rpcl_it); - lck->rpcl_it = NULL; - up(&lck->rpcl_sem); - } +#ifdef __KERNEL__ + if (BITS_PER_LONG == 32 && hash64) + hash >>= 32; +#endif + /* save hash 0 with hash 1 */ + return ~0UL - (hash + !hash); } -#endif /* MDC_INTERNAL_H */ +#endif