-/* -*- 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
-
-void mdc_getattr_pack(struct lustre_msg *msg, int offset,
- int 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 mdc_readdir_pack(struct ptlrpc_request *req, int req_offset,
- __u64 offset, __u32 size, struct ll_fid *mdc_fid);
-void mdc_close_pack(struct ptlrpc_request *req, int offset, struct obdo *oa,
- int 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 <lustre_mdc.h>
+#include <lustre_mds.h>
+
+#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_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);
+
+/* 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
git://git.whamcloud.com / fs / lustre-release.git / blobdiff