-/* -*- 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.gnu.org/licenses/gpl-2.0.html
*
- * 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.
+ * GPL HEADER END
*/
-#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)
-{
- sema_init(&lck->rpcl_sem, 1);
- lck->rpcl_it = NULL;
-}
+/*
+ * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2011, 2017, 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 <lustre_mdc.h>
+
+int mdc_tunables_init(struct obd_device *obd);
+
+void mdc_pack_body(struct ptlrpc_request *req, const struct lu_fid *fid,
+ u64 valid, size_t ea_size, u32 suppgid, u32 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, size_t size,
+ const struct lu_fid *fid);
+void mdc_getattr_pack(struct ptlrpc_request *req, __u64 valid, __u32 flags,
+ struct md_op_data *data, size_t ea_size);
+void mdc_setattr_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
+ void *ea, size_t ealen);
+void mdc_create_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
+ const void *data, size_t datalen, umode_t mode,
+ uid_t uid, gid_t gid, cfs_cap_t capability, __u64 rdev);
+void mdc_open_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
+ umode_t mode, __u64 rdev, __u64 flags,
+ const void *data, size_t datalen);
+void mdc_file_secctx_pack(struct ptlrpc_request *req,
+ const char *secctx_name,
+ const void *secctx, size_t secctx_size);
+void mdc_file_sepol_pack(struct ptlrpc_request *req);
+
+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, size_t oldlen,
+ const char *new, size_t newlen);
+void mdc_migrate_pack(struct ptlrpc_request *req, struct md_op_data *op_data,
+ const char *name, size_t namelen);
+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,
+ const struct lustre_handle *lockh,
+ void *data, __u64 *bits);
+
+int mdc_null_inode(struct obd_export *exp, const struct lu_fid *fid);
+
+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 md_op_data *op_data,
+ struct lustre_handle *lockh, __u64 extra_lock_flags);
+int mdc_resource_get_unused_res(struct obd_export *exp,
+ struct ldlm_res_id *res_id,
+ struct list_head *cancels,
+ enum ldlm_mode mode, __u64 bits);
+int mdc_resource_get_unused(struct obd_export *exp, const struct lu_fid *fid,
+ struct list_head *cancels, enum ldlm_mode mode,
+ __u64 bits);
+int mdc_save_lovea(struct ptlrpc_request *req,
+ const struct req_msg_field *field,
+ void *data, u32 size);
+/* 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_setup(struct obd_device *obd, struct lustre_cfg *cfg);
+
+struct obd_client_handle;
-static inline void mdc_get_rpc_lock(struct mdc_rpc_lock *lck,
- struct lookup_intent *it)
+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, size_t datalen,
+ umode_t mode, uid_t uid, gid_t 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, size_t oldlen, const char *new, size_t newlen,
+ struct ptlrpc_request **request);
+int mdc_setattr(struct obd_export *exp, struct md_op_data *op_data,
+ void *ea, size_t ealen, struct ptlrpc_request **request);
+int mdc_unlink(struct obd_export *exp, struct md_op_data *op_data,
+ struct ptlrpc_request **request);
+int mdc_file_resync(struct obd_export *exp, struct md_op_data *data);
+int mdc_cancel_unused(struct obd_export *exp, const struct lu_fid *fid,
+ union ldlm_policy_data *policy, enum ldlm_mode mode,
+ enum ldlm_cancel_flags flags, void *opaque);
+
+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);
+
+enum ldlm_mode mdc_lock_match(struct obd_export *exp, __u64 flags,
+ const struct lu_fid *fid, enum ldlm_type type,
+ union ldlm_policy_data *policy,
+ enum ldlm_mode mode, struct lustre_handle *lockh);
+
+
+#define MDC_CHANGELOG_DEV_COUNT LMV_MAX_STRIPE_COUNT
+#define MDC_CHANGELOG_DEV_NAME "changelog"
+extern struct class *mdc_changelog_class;
+extern dev_t mdc_changelog_dev;
+extern struct idr mdc_changelog_minor_idr;
+
+int mdc_changelog_cdev_init(struct obd_device *obd);
+
+void mdc_changelog_cdev_finish(struct obd_device *obd);
+
+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);
- }
+ if (BITS_PER_LONG == 32 && hash64)
+ hash >>= 32;
+ /* save hash 0 with hash 1 */
+ return ~0UL - (hash + !hash);
}
-#endif /* MDC_INTERNAL_H */
+/* mdc_dev.c */
+extern struct lu_device_type mdc_device_type;
+int mdc_ldlm_blocking_ast(struct ldlm_lock *dlmlock,
+ struct ldlm_lock_desc *new, void *data, int flag);
+int mdc_ldlm_glimpse_ast(struct ldlm_lock *dlmlock, void *data);
+int mdc_fill_lvb(struct ptlrpc_request *req, struct ost_lvb *lvb);
+
+/* the minimum inline repsize should be PAGE_SIZE at least */
+#define MDC_DOM_DEF_INLINE_REPSIZE max(8192UL, PAGE_SIZE)
+#define MDC_DOM_MAX_INLINE_REPSIZE XATTR_SIZE_MAX
+
+#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff