4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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.
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).
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.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2011, 2015, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
30 * Lustre is a trademark of Sun Microsystems, Inc.
32 * lustre/mdt/mdt_internal.h
34 * Lustre Metadata Target (mdt) request handler
36 * Author: Peter Braam <braam@clusterfs.com>
37 * Author: Andreas Dilger <adilger@clusterfs.com>
38 * Author: Phil Schwan <phil@clusterfs.com>
39 * Author: Mike Shaver <shaver@clusterfs.com>
40 * Author: Nikita Danilov <nikita@clusterfs.com>
41 * Author: Huang Hua <huanghua@clusterfs.com>
44 #ifndef _MDT_INTERNAL_H
45 #define _MDT_INTERNAL_H
48 #include <upcall_cache.h>
49 #include <lustre_net.h>
50 #include <lustre/lustre_idl.h>
51 #include <obd_class.h>
52 #include <lustre_disk.h>
53 #include <lu_target.h>
54 #include <md_object.h>
55 #include <lustre_fid.h>
56 #include <lustre_fld.h>
57 #include <lustre_req_layout.h>
58 #include <lustre_sec.h>
59 #include <lustre_idmap.h>
60 #include <lustre_eacl.h>
61 #include <lustre_quota.h>
62 #include <lustre_linkea.h>
66 /* file data for open files on MDS */
67 struct mdt_file_data {
68 /** portals handle must be first */
69 struct portals_handle mfd_handle;
70 /** open mode provided by client */
72 /** protected by med_open_lock */
73 struct list_head mfd_list;
74 /** xid of the open request */
76 /** old handle in replay case */
77 struct lustre_handle mfd_old_handle;
78 /** point to opened object */
79 struct mdt_object *mfd_object;
82 #define CDT_NONBLOCKING_RESTORE (1ULL << 0)
83 #define CDT_NORETRY_ACTION (1ULL << 1)
84 #define CDT_POLICY_LAST CDT_NORETRY_ACTION
85 #define CDT_POLICY_SHIFT_COUNT 2
86 #define CDT_POLICY_ALL (CDT_NONBLOCKING_RESTORE | \
89 /* when adding a new policy, do not forget to update
90 * lustre/mdt/mdt_coordinator.c::hsm_policy_names[]
92 #define CDT_DEFAULT_POLICY CDT_NORETRY_ACTION
94 enum cdt_states { CDT_STOPPED = 0,
100 /* when multiple lock are needed, the lock order is
108 struct ptlrpc_thread cdt_thread; /**< coordinator thread */
109 struct lu_env cdt_env; /**< coordinator lustre
111 struct lu_context cdt_session; /** session for lu_ucred */
112 struct proc_dir_entry *cdt_proc_dir; /**< cdt /proc directory */
113 __u64 cdt_policy; /**< policy flags */
114 enum cdt_states cdt_state; /**< state */
115 atomic_t cdt_compound_id; /**< compound id
117 __u64 cdt_last_cookie; /**< last cookie
119 struct mutex cdt_llog_lock; /**< protect llog
121 struct rw_semaphore cdt_agent_lock; /**< protect agent list */
122 struct rw_semaphore cdt_request_lock; /**< protect request
124 struct mutex cdt_restore_lock; /**< protect restore
126 cfs_time_t cdt_loop_period; /**< llog scan period */
127 cfs_time_t cdt_grace_delay; /**< request grace
129 cfs_time_t cdt_active_req_timeout; /**< request timeout */
130 __u32 cdt_default_archive_id; /**< archive id used
133 __u64 cdt_max_requests; /**< max count of started
135 atomic_t cdt_request_count; /**< current count of
136 * started requests */
137 struct list_head cdt_requests; /**< list of started
139 struct list_head cdt_agents; /**< list of register
141 struct list_head cdt_restore_hdl; /**< list of restore lock
143 /* Bitmasks indexed by the HSMA_XXX constants. */
144 __u64 cdt_user_request_mask;
145 __u64 cdt_group_request_mask;
146 __u64 cdt_other_request_mask;
149 /* mdt state flag bits */
150 #define MDT_FL_CFGLOG 0
151 #define MDT_FL_SYNCED 1
155 struct lu_device mdt_lu_dev;
156 struct seq_server_site mdt_seq_site;
157 /* DLM name-space for meta-data locks maintained by this server */
158 struct ldlm_namespace *mdt_namespace;
159 /* ptlrpc handle for MDS->client connections (for lock ASTs). */
160 struct ptlrpc_client *mdt_ldlm_client;
161 /* underlying device */
162 struct obd_export *mdt_child_exp;
163 struct md_device *mdt_child;
164 struct dt_device *mdt_bottom;
165 struct obd_export *mdt_bottom_exp;
167 struct lu_target mdt_lut;
169 * Options bit-fields.
172 unsigned int mo_user_xattr:1,
178 /* mdt state flags */
179 unsigned long mdt_state;
181 /* transaction callbacks */
182 struct dt_txn_callback mdt_txn_cb;
184 /* these values should be updated from lov if necessary.
185 * or should be placed somewhere else. */
190 struct upcall_cache *mdt_identity_cache;
192 unsigned int mdt_capa_conf:1,
193 /* Enable remote dir on non-MDT0 */
194 mdt_enable_remote_dir:1,
197 gid_t mdt_enable_remote_dir_gid;
199 /* lock for osfs and md_root */
202 /* statfs optimization: we cache a bit */
203 struct obd_statfs mdt_osfs;
207 struct root_squash_info mdt_squash;
209 struct rename_stats mdt_rename_stats;
210 struct lu_fid mdt_md_root_fid;
212 /* connection to quota master */
213 struct obd_export *mdt_qmt_exp;
214 /* quota master device associated with this MDT */
215 struct lu_device *mdt_qmt_dev;
217 struct coordinator mdt_coordinator;
219 /* inter-MDT connection count */
220 atomic_t mdt_mds_mds_conns;
222 /* MDT device async commit count, used for debug and sanity test */
223 atomic_t mdt_async_commit_count;
225 struct mdt_object *mdt_md_root;
228 #define MDT_SERVICE_WATCHDOG_FACTOR (2)
229 #define MDT_COS_DEFAULT (0)
232 struct lu_object_header mot_header;
233 struct lu_object mot_obj;
234 unsigned int mot_lov_created:1, /* lov object created */
235 mot_cache_attr:1; /* enable remote object
238 spinlock_t mot_write_lock;
239 /* Lock to protect create_data */
240 struct mutex mot_lov_mutex;
241 /* Lock to protect lease open.
242 * Lease open acquires write lock; normal open acquires read lock */
243 struct rw_semaphore mot_open_sem;
244 atomic_t mot_lease_count;
245 atomic_t mot_open_count;
248 struct mdt_lock_handle {
249 /* Lock type, reg for cross-ref use or pdo lock. */
253 struct lustre_handle mlh_reg_lh;
254 enum ldlm_mode mlh_reg_mode;
257 struct lustre_handle mlh_pdo_lh;
258 enum ldlm_mode mlh_pdo_mode;
259 unsigned int mlh_pdo_hash;
261 /* Remote regular lock */
262 struct lustre_handle mlh_rreg_lh;
263 enum ldlm_mode mlh_rreg_mode;
267 MDT_LH_PARENT, /* parent lockh */
268 MDT_LH_CHILD, /* child lockh */
269 MDT_LH_OLD, /* old lockh for rename */
270 MDT_LH_LAYOUT = MDT_LH_OLD, /* layout lock */
271 MDT_LH_NEW, /* new lockh for rename */
272 MDT_LH_RMT, /* used for return lh to caller */
273 MDT_LH_LOCAL, /* local lock never return to client */
282 /* Special magical errno for communicaiton between mdt_reint_open()
283 * and mdt_intent_reint() which means return the lock to the client
284 * for subsequent cross ref open. Previously we used plain -EREMOTE
285 * but other functions called in that path might return it too and
286 * confuse us. This is not returned to the client. See LU-5370. */
287 #define MDT_EREMOTE_OPEN (EREMOTE + 1024)
289 struct mdt_reint_record {
290 mdt_reint_t rr_opcode;
291 const struct lustre_handle *rr_handle;
292 const struct lu_fid *rr_fid1;
293 const struct lu_fid *rr_fid2;
294 struct lu_name rr_name;
295 struct lu_name rr_tgt_name;
301 enum mdt_reint_flag {
302 MRF_OPEN_TRUNC = 1 << 0,
306 * Common data shared by mdt-level handlers. This is allocated per-thread to
307 * reduce stack consumption.
309 struct mdt_thread_info {
312 * The following members will be filled explicitly
313 * with specific data in mdt_thread_info_init().
315 /* TODO: move this into mdt_session_key(with LCT_SESSION), because
316 * request handling may migrate from one server thread to another.
318 struct req_capsule *mti_pill;
320 /* although we have export in req, there are cases when it is not
321 * available, e.g. closing files upon export destroy */
322 struct obd_export *mti_exp;
324 * A couple of lock handles.
326 struct mdt_lock_handle mti_lh[MDT_LH_NR];
328 struct mdt_device *mti_mdt;
329 const struct lu_env *mti_env;
331 /* transaction number of current request */
337 * The following members will be filled expilictly
338 * with zero in mdt_thread_info_init(). These members may be used
345 struct md_attr mti_attr;
347 * Body for "habeo corpus" operations.
349 const struct mdt_body *mti_body;
351 * Host object. This is released at the end of mdt_handler().
353 struct mdt_object *mti_object;
355 * Lock request for "habeo clavis" operations.
357 const struct ldlm_request *mti_dlm_req;
359 __u32 mti_has_trans:1, /* has txn already? */
362 /* opdata for mdt_reint_open(), has the same as
363 * ldlm_reply:lock_policy_res1. mdt_update_last_rcvd() stores this
364 * value onto disk for recovery when mdt_trans_stop_cb() is called.
370 * The following members will be filled explicitly
371 * with zero in mdt_reint_unpack(), because they are only used
372 * by reint requests (including mdt_reint_open()).
376 * reint record. contains information for reint operations.
378 struct mdt_reint_record mti_rr;
380 __u64 mti_ver[PTLRPC_NUM_VERSIONS];
382 * Operation specification (currently create and lookup)
384 struct md_op_spec mti_spec;
388 * The following members will _NOT_ be initialized at all.
389 * DO NOT expect them to contain any valid value.
390 * They should be initialized explicitly by the user themselves.
393 /* XXX: If something is in a union, make sure they do not conflict */
394 struct lu_fid mti_tmp_fid1;
395 struct lu_fid mti_tmp_fid2;
396 union ldlm_policy_data mti_policy; /* for mdt_object_lock() */
397 struct ldlm_res_id mti_res_id; /* and mdt_rename_lock() */
399 struct obd_uuid uuid[2]; /* for mdt_seq_init_cli() */
400 char ns_name[48];/* for mdt_init0() */
401 struct lustre_cfg_bufs bufs; /* for mdt_stack_fini() */
402 struct obd_statfs osfs; /* for mdt_statfs() */
404 /* for mdt_readpage() */
405 struct lu_rdpg mti_rdpg;
406 /* for mdt_sendpage() */
407 struct l_wait_info mti_wait_info;
414 struct lustre_handle mti_close_handle;
416 struct lu_buf mti_buf;
417 struct lu_buf mti_big_buf;
419 /* Ops object filename */
420 struct lu_name mti_name;
421 /* per-thread values, can be re-used, may be vmalloc'd */
424 /* big_lmm buffer was used and must be used in reply */
425 int mti_big_lmm_used;
426 /* should be enough to fit lustre_mdt_attrs */
427 char mti_xattr_buf[128];
428 struct ldlm_enqueue_info mti_einfo;
429 struct tg_reply_data *mti_reply_data;
432 extern struct lu_context_key mdt_thread_key;
434 static inline struct mdt_thread_info *mdt_th_info(const struct lu_env *env)
436 struct mdt_thread_info *mti;
438 lu_env_refill((void *)env);
439 mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key);
444 struct cdt_req_progress {
445 struct mutex crp_lock; /**< protect tree */
446 struct interval_node *crp_root; /**< tree to track extent
448 struct interval_node **crp_node; /**< buffer for tree nodes
449 * vector of fixed size
451 int crp_cnt; /**< # of used nodes */
452 int crp_max; /**< # of allocated nodes */
455 struct cdt_agent_req {
456 struct list_head car_request_list; /**< to chain all the req. */
457 atomic_t car_refcount; /**< reference counter */
458 __u64 car_compound_id; /**< compound id */
459 __u64 car_flags; /**< request original flags */
460 struct obd_uuid car_uuid; /**< agent doing the req. */
461 __u32 car_archive_id; /**< archive id */
462 int car_canceled; /**< request was canceled */
463 cfs_time_t car_req_start; /**< start time */
464 cfs_time_t car_req_update; /**< last update time */
465 struct hsm_action_item *car_hai; /**< req. to the agent */
466 struct cdt_req_progress car_progress; /**< track data mvt
469 extern struct kmem_cache *mdt_hsm_car_kmem;
472 struct list_head ha_list; /**< to chain the agents */
473 struct obd_uuid ha_uuid; /**< agent uuid */
474 __u32 *ha_archive_id; /**< archive id */
475 int ha_archive_cnt; /**< number of archive entries
476 * 0 means any archive */
477 atomic_t ha_requests; /**< current request count */
478 atomic_t ha_success; /**< number of successful
480 atomic_t ha_failure; /**< number of failed actions */
483 struct cdt_restore_handle {
484 struct list_head crh_list; /**< to chain the handle */
485 struct lu_fid crh_fid; /**< fid of the object */
486 struct ldlm_extent crh_extent; /**< extent of the restore */
487 struct mdt_lock_handle crh_lh; /**< lock handle */
489 extern struct kmem_cache *mdt_hsm_cdt_kmem; /** restore handle slab cache */
491 static inline const struct md_device_operations *
492 mdt_child_ops(struct mdt_device * m)
494 LASSERT(m->mdt_child);
495 return m->mdt_child->md_ops;
498 static inline struct md_object *mdt_object_child(struct mdt_object *o)
501 return lu2md(lu_object_next(&o->mot_obj));
504 static inline struct ptlrpc_request *mdt_info_req(struct mdt_thread_info *info)
506 return info->mti_pill ? info->mti_pill->rc_req : NULL;
509 static inline __u64 mdt_conn_flags(struct mdt_thread_info *info)
511 LASSERT(info->mti_exp);
512 return exp_connect_flags(info->mti_exp);
515 static inline void mdt_object_get(const struct lu_env *env,
516 struct mdt_object *o)
519 lu_object_get(&o->mot_obj);
523 static inline void mdt_object_put(const struct lu_env *env,
524 struct mdt_object *o)
527 lu_object_put(env, &o->mot_obj);
531 static inline int mdt_object_exists(const struct mdt_object *o)
533 return lu_object_exists(&o->mot_obj);
536 static inline int mdt_object_remote(const struct mdt_object *o)
538 return lu_object_remote(&o->mot_obj);
541 static inline const struct lu_fid *mdt_object_fid(const struct mdt_object *o)
543 return lu_object_fid(&o->mot_obj);
546 static inline struct lu_site *mdt_lu_site(const struct mdt_device *mdt)
548 return mdt->mdt_lu_dev.ld_site;
551 static inline struct seq_server_site *mdt_seq_site(struct mdt_device *mdt)
553 return &mdt->mdt_seq_site;
556 static inline void mdt_export_evict(struct obd_export *exp)
558 class_fail_export(exp);
561 /* Here we use LVB_TYPE to check dne client, because it is
562 * also landed on 2.4. */
563 static inline bool mdt_is_dne_client(struct obd_export *exp)
565 return !!(exp_connect_flags(exp) & OBD_CONNECT_LVB_TYPE);
568 static inline bool mdt_is_striped_client(struct obd_export *exp)
570 return exp_connect_flags(exp) & OBD_CONNECT_DIR_STRIPE;
573 __u64 mdt_get_disposition(struct ldlm_reply *rep, __u64 op_flag);
574 void mdt_set_disposition(struct mdt_thread_info *info,
575 struct ldlm_reply *rep, __u64 op_flag);
576 void mdt_clear_disposition(struct mdt_thread_info *info,
577 struct ldlm_reply *rep, __u64 op_flag);
579 void mdt_lock_pdo_init(struct mdt_lock_handle *lh, enum ldlm_mode lock_mode,
580 const struct lu_name *lname);
582 void mdt_lock_reg_init(struct mdt_lock_handle *lh, enum ldlm_mode lm);
584 int mdt_lock_setup(struct mdt_thread_info *info, struct mdt_object *mo,
585 struct mdt_lock_handle *lh);
587 int mdt_check_resent_lock(struct mdt_thread_info *info, struct mdt_object *mo,
588 struct mdt_lock_handle *lhc);
590 int mdt_object_lock(struct mdt_thread_info *info, struct mdt_object *mo,
591 struct mdt_lock_handle *lh, __u64 ibits);
593 int mdt_reint_object_lock(struct mdt_thread_info *info, struct mdt_object *o,
594 struct mdt_lock_handle *lh, __u64 ibits,
597 int mdt_object_lock_try(struct mdt_thread_info *info, struct mdt_object *mo,
598 struct mdt_lock_handle *lh, __u64 ibits);
600 int mdt_reint_object_lock_try(struct mdt_thread_info *info,
601 struct mdt_object *o, struct mdt_lock_handle *lh,
602 __u64 ibits, bool cos_incompat);
604 void mdt_object_unlock(struct mdt_thread_info *info, struct mdt_object *mo,
605 struct mdt_lock_handle *lh, int decref);
607 struct mdt_object *mdt_object_new(const struct lu_env *env,
609 const struct lu_fid *);
610 struct mdt_object *mdt_object_find(const struct lu_env *,
612 const struct lu_fid *);
613 struct mdt_object *mdt_object_find_lock(struct mdt_thread_info *,
614 const struct lu_fid *,
615 struct mdt_lock_handle *,
617 void mdt_object_unlock_put(struct mdt_thread_info *,
619 struct mdt_lock_handle *,
622 void mdt_client_compatibility(struct mdt_thread_info *info);
624 int mdt_remote_object_lock(struct mdt_thread_info *mti,
625 struct mdt_object *o, const struct lu_fid *fid,
626 struct lustre_handle *lh,
627 enum ldlm_mode mode, __u64 ibits, bool nonblock,
630 enum mdt_name_flags {
634 int mdt_name_unpack(struct req_capsule *pill,
635 const struct req_msg_field *field,
637 enum mdt_name_flags flags);
638 int mdt_close_unpack(struct mdt_thread_info *info);
639 int mdt_reint_unpack(struct mdt_thread_info *info, __u32 op);
640 int mdt_reint_rec(struct mdt_thread_info *, struct mdt_lock_handle *);
641 #ifdef CONFIG_FS_POSIX_ACL
642 int mdt_pack_acl2body(struct mdt_thread_info *info, struct mdt_body *repbody,
643 struct mdt_object *o, struct lu_nodemap *nodemap);
645 void mdt_pack_attr2body(struct mdt_thread_info *info, struct mdt_body *b,
646 const struct lu_attr *attr, const struct lu_fid *fid);
648 int mdt_getxattr(struct mdt_thread_info *info);
649 int mdt_reint_setxattr(struct mdt_thread_info *info,
650 struct mdt_lock_handle *lh);
652 void mdt_lock_handle_init(struct mdt_lock_handle *lh);
653 void mdt_lock_handle_fini(struct mdt_lock_handle *lh);
655 void mdt_reconstruct(struct mdt_thread_info *, struct mdt_lock_handle *);
656 void mdt_reconstruct_generic(struct mdt_thread_info *mti,
657 struct mdt_lock_handle *lhc);
659 extern void target_recovery_fini(struct obd_device *obd);
660 extern void target_recovery_init(struct lu_target *lut,
661 svc_handler_t handler);
662 int mdt_fs_setup(const struct lu_env *, struct mdt_device *,
663 struct obd_device *, struct lustre_sb_info *lsi);
664 void mdt_fs_cleanup(const struct lu_env *, struct mdt_device *);
666 int mdt_export_stats_init(struct obd_device *obd,
667 struct obd_export *exp,
670 int mdt_lock_new_child(struct mdt_thread_info *info,
671 struct mdt_object *o,
672 struct mdt_lock_handle *child_lockh);
674 void mdt_mfd_set_mode(struct mdt_file_data *mfd,
677 int mdt_reint_open(struct mdt_thread_info *info,
678 struct mdt_lock_handle *lhc);
680 struct mdt_file_data *mdt_handle2mfd(struct mdt_export_data *med,
681 const struct lustre_handle *handle,
684 int mdt_get_info(struct tgt_session_info *tsi);
685 int mdt_attr_get_complex(struct mdt_thread_info *info,
686 struct mdt_object *o, struct md_attr *ma);
687 int mdt_big_xattr_get(struct mdt_thread_info *info, struct mdt_object *o,
689 int mdt_stripe_get(struct mdt_thread_info *info, struct mdt_object *o,
690 struct md_attr *ma, const char *name);
691 int mdt_write_get(struct mdt_object *o);
692 void mdt_write_put(struct mdt_object *o);
693 int mdt_write_read(struct mdt_object *o);
694 struct mdt_file_data *mdt_mfd_new(const struct mdt_export_data *med);
695 int mdt_mfd_close(struct mdt_thread_info *info, struct mdt_file_data *mfd);
696 void mdt_mfd_free(struct mdt_file_data *mfd);
697 int mdt_close(struct tgt_session_info *tsi);
698 int mdt_add_dirty_flag(struct mdt_thread_info *info, struct mdt_object *mo,
700 int mdt_fix_reply(struct mdt_thread_info *info);
701 int mdt_handle_last_unlink(struct mdt_thread_info *, struct mdt_object *,
702 const struct md_attr *);
703 void mdt_reconstruct_open(struct mdt_thread_info *, struct mdt_lock_handle *);
705 struct lu_buf *mdt_buf(const struct lu_env *env, void *area, ssize_t len);
706 const struct lu_buf *mdt_buf_const(const struct lu_env *env,
707 const void *area, ssize_t len);
709 void mdt_dump_lmm(int level, const struct lov_mds_md *lmm, __u64 valid);
710 void mdt_dump_lmv(unsigned int level, const union lmv_mds_md *lmv);
712 bool allow_client_chgrp(struct mdt_thread_info *info, struct lu_ucred *uc);
713 int mdt_check_ucred(struct mdt_thread_info *);
714 int mdt_init_ucred(struct mdt_thread_info *, struct mdt_body *);
715 int mdt_init_ucred_intent_getattr(struct mdt_thread_info *, struct mdt_body *);
716 int mdt_init_ucred_reint(struct mdt_thread_info *);
717 void mdt_exit_ucred(struct mdt_thread_info *);
718 int mdt_version_get_check(struct mdt_thread_info *, struct mdt_object *, int);
719 void mdt_version_get_save(struct mdt_thread_info *, struct mdt_object *, int);
720 int mdt_version_get_check_save(struct mdt_thread_info *, struct mdt_object *,
722 void mdt_thread_info_init(struct ptlrpc_request *req,
723 struct mdt_thread_info *mti);
724 void mdt_thread_info_fini(struct mdt_thread_info *mti);
725 struct mdt_thread_info *tsi2mdt_info(struct tgt_session_info *tsi);
727 int mdt_hsm_attr_set(struct mdt_thread_info *info, struct mdt_object *obj,
728 const struct md_hsm *mh);
730 int mdt_remote_blocking_ast(struct ldlm_lock *lock, struct ldlm_lock_desc *desc,
731 void *data, int flag);
732 int mdt_links_read(struct mdt_thread_info *info,
733 struct mdt_object *mdt_obj,
734 struct linkea_data *ldata);
735 int mdt_close_internal(struct mdt_thread_info *info, struct ptlrpc_request *req,
736 struct mdt_body *repbody);
738 static inline struct mdt_device *mdt_dev(struct lu_device *d)
740 return container_of0(d, struct mdt_device, mdt_lu_dev);
743 static inline struct mdt_object *mdt_obj(struct lu_object *o)
745 return container_of0(o, struct mdt_object, mot_obj);
748 static inline struct dt_object *mdt_obj2dt(struct mdt_object *mo)
750 struct lu_object *lo;
751 struct mdt_device *mdt = mdt_dev(mo->mot_obj.lo_dev);
753 lo = lu_object_locate(mo->mot_obj.lo_header,
754 mdt->mdt_bottom->dd_lu_dev.ld_type);
759 static inline bool agent_req_in_final_state(enum agent_req_status ars)
761 return ((ars == ARS_SUCCEED) || (ars == ARS_FAILED) ||
762 (ars == ARS_CANCELED));
765 /* mdt/mdt_identity.c */
766 #define MDT_IDENTITY_UPCALL_PATH "/usr/sbin/l_getidentity"
768 extern struct upcall_cache_ops mdt_identity_upcall_cache_ops;
770 struct md_identity *mdt_identity_get(struct upcall_cache *, __u32);
772 void mdt_identity_put(struct upcall_cache *, struct md_identity *);
774 void mdt_flush_identity(struct upcall_cache *, int);
776 __u32 mdt_identity_get_perm(struct md_identity *, lnet_nid_t);
778 /* mdt/mdt_recovery.c */
779 __u64 mdt_req_from_lrd(struct ptlrpc_request *req, struct tg_reply_data *trd);
782 int mdt_hsm_state_get(struct tgt_session_info *tsi);
783 int mdt_hsm_state_set(struct tgt_session_info *tsi);
784 int mdt_hsm_action(struct tgt_session_info *tsi);
785 int mdt_hsm_progress(struct tgt_session_info *tsi);
786 int mdt_hsm_ct_register(struct tgt_session_info *tsi);
787 int mdt_hsm_ct_unregister(struct tgt_session_info *tsi);
788 int mdt_hsm_request(struct tgt_session_info *tsi);
790 /* mdt/mdt_hsm_cdt_actions.c */
791 extern const struct file_operations mdt_hsm_actions_fops;
792 void dump_llog_agent_req_rec(const char *prefix,
793 const struct llog_agent_req_rec *larr);
794 int cdt_llog_process(const struct lu_env *env, struct mdt_device *mdt,
795 llog_cb_t cb, void *data);
796 int mdt_agent_record_add(const struct lu_env *env, struct mdt_device *mdt,
797 __u64 compound_id, __u32 archive_id,
798 __u64 flags, struct hsm_action_item *hai);
799 int mdt_agent_record_update(const struct lu_env *env,
800 struct mdt_device *mdt, __u64 *cookies,
801 int cookies_count, enum agent_req_status status);
803 /* mdt/mdt_hsm_cdt_agent.c */
804 extern const struct file_operations mdt_hsm_agent_fops;
805 int mdt_hsm_agent_register(struct mdt_thread_info *info,
806 const struct obd_uuid *uuid,
807 int nr_archives, __u32 *archive_num);
808 int mdt_hsm_agent_register_mask(struct mdt_thread_info *info,
809 const struct obd_uuid *uuid,
811 int mdt_hsm_agent_unregister(struct mdt_thread_info *info,
812 const struct obd_uuid *uuid);
813 int mdt_hsm_agent_update_statistics(struct coordinator *cdt,
814 int succ_rq, int fail_rq, int new_rq,
815 const struct obd_uuid *uuid);
816 int mdt_hsm_find_best_agent(struct coordinator *cdt, __u32 archive,
817 struct obd_uuid *uuid);
818 int mdt_hsm_agent_send(struct mdt_thread_info *mti, struct hsm_action_list *hal,
820 int mdt_hsm_coordinator_update(struct mdt_thread_info *mti,
821 struct hsm_progress_kernel *pgs);
822 /* mdt/mdt_hsm_cdt_client.c */
823 int mdt_hsm_add_actions(struct mdt_thread_info *info,
824 struct hsm_action_list *hal);
825 int mdt_hsm_get_actions(struct mdt_thread_info *mti,
826 struct hsm_action_list *hal);
827 int mdt_hsm_get_running(struct mdt_thread_info *mti,
828 struct hsm_action_list *hal);
829 bool mdt_hsm_restore_is_running(struct mdt_thread_info *mti,
830 const struct lu_fid *fid);
831 /* mdt/mdt_hsm_cdt_requests.c */
832 extern const struct file_operations mdt_hsm_active_requests_fops;
833 void dump_requests(char *prefix, struct coordinator *cdt);
834 struct cdt_agent_req *mdt_cdt_alloc_request(__u64 compound_id, __u32 archive_id,
835 __u64 flags, struct obd_uuid *uuid,
836 struct hsm_action_item *hai);
837 void mdt_cdt_free_request(struct cdt_agent_req *car);
838 int mdt_cdt_add_request(struct coordinator *cdt, struct cdt_agent_req *new_car);
839 struct cdt_agent_req *mdt_cdt_find_request(struct coordinator *cdt,
841 const struct lu_fid *fid);
842 void mdt_cdt_get_work_done(struct cdt_agent_req *car, __u64 *done_sz);
843 void mdt_cdt_get_request(struct cdt_agent_req *car);
844 void mdt_cdt_put_request(struct cdt_agent_req *car);
845 struct cdt_agent_req *mdt_cdt_update_request(struct coordinator *cdt,
846 const struct hsm_progress_kernel *pgs);
847 int mdt_cdt_remove_request(struct coordinator *cdt, __u64 cookie);
848 /* mdt/mdt_coordinator.c */
849 void mdt_hsm_dump_hal(int level, const char *prefix,
850 struct hsm_action_list *hal);
851 struct cdt_restore_handle *mdt_hsm_restore_hdl_find(struct coordinator *cdt,
852 const struct lu_fid *fid);
853 /* coordinator management */
854 int mdt_hsm_cdt_init(struct mdt_device *mdt);
855 int mdt_hsm_cdt_stop(struct mdt_device *mdt);
856 int mdt_hsm_cdt_fini(struct mdt_device *mdt);
857 int mdt_hsm_cdt_wakeup(struct mdt_device *mdt);
859 /* coordinator control /proc interface */
860 ssize_t mdt_hsm_cdt_control_seq_write(struct file *file,
861 const char __user *buffer,
862 size_t count, loff_t *off);
863 int mdt_hsm_cdt_control_seq_show(struct seq_file *m, void *data);
864 int hsm_cdt_procfs_init(struct mdt_device *mdt);
865 void hsm_cdt_procfs_fini(struct mdt_device *mdt);
866 struct lprocfs_vars *hsm_cdt_get_proc_vars(void);
868 struct mdt_object *mdt_hsm_get_md_hsm(struct mdt_thread_info *mti,
869 const struct lu_fid *fid,
871 /* actions/request helpers */
872 int mdt_hsm_add_hal(struct mdt_thread_info *mti,
873 struct hsm_action_list *hal, struct obd_uuid *uuid);
874 bool mdt_hsm_is_action_compat(const struct hsm_action_item *hai,
875 const int hal_an, const __u64 rq_flags,
876 const struct md_hsm *hsm);
877 int mdt_hsm_update_request_state(struct mdt_thread_info *mti,
878 struct hsm_progress_kernel *pgs,
879 const int update_record);
881 int mdt_close_swap_layouts(struct mdt_thread_info *info,
882 struct mdt_object *o, struct md_attr *ma);
884 extern struct lu_context_key mdt_thread_key;
886 /* debug issues helper starts here*/
887 static inline int mdt_fail_write(const struct lu_env *env,
888 struct dt_device *dd, int id)
890 if (OBD_FAIL_CHECK_ORSET(id, OBD_FAIL_ONCE)) {
891 CERROR(LUSTRE_MDT_NAME": cfs_fail_loc=%x, fail write ops\n",
893 return dt_ro(env, dd);
894 /* We set FAIL_ONCE because we never "un-fail" a device */
900 static inline struct mdt_export_data *mdt_req2med(struct ptlrpc_request *req)
902 return &req->rq_export->exp_mdt_data;
905 static inline struct mdt_device *mdt_exp2dev(struct obd_export *exp)
907 return mdt_dev(exp->exp_obd->obd_lu_dev);
910 typedef void (*mdt_reconstruct_t)(struct mdt_thread_info *mti,
911 struct mdt_lock_handle *lhc);
912 static inline int mdt_check_resent(struct mdt_thread_info *info,
913 mdt_reconstruct_t reconstruct,
914 struct mdt_lock_handle *lhc)
916 struct ptlrpc_request *req = mdt_info_req(info);
920 if (lustre_msg_get_flags(req->rq_reqmsg) & MSG_RESENT) {
921 OBD_ALLOC_PTR(info->mti_reply_data);
922 if (info->mti_reply_data == NULL)
925 if (req_can_reconstruct(req, info->mti_reply_data)) {
926 reconstruct(info, lhc);
930 "no reply data found for RESENT req");
933 OBD_FREE_PTR(info->mti_reply_data);
934 info->mti_reply_data = NULL;
939 struct lu_ucred *mdt_ucred(const struct mdt_thread_info *info);
940 struct lu_ucred *mdt_ucred_check(const struct mdt_thread_info *info);
942 static inline int is_identity_get_disabled(struct upcall_cache *cache)
944 return cache ? (strcmp(cache->uc_upcall, "NONE") == 0) : 1;
947 int mdt_blocking_ast(struct ldlm_lock*, struct ldlm_lock_desc*, void*, int);
949 /* Issues dlm lock on passed @ns, @f stores it lock handle into @lh. */
950 static inline int mdt_fid_lock(struct ldlm_namespace *ns,
951 struct lustre_handle *lh, enum ldlm_mode mode,
952 union ldlm_policy_data *policy,
953 const struct ldlm_res_id *res_id,
954 __u64 flags, const __u64 *client_cookie)
961 rc = ldlm_cli_enqueue_local(ns, res_id, LDLM_IBITS, policy,
962 mode, &flags, mdt_blocking_ast,
963 ldlm_completion_ast, NULL, NULL, 0,
964 LVB_T_NONE, client_cookie, lh);
965 return rc == ELDLM_OK ? 0 : -EIO;
968 static inline void mdt_fid_unlock(struct lustre_handle *lh, enum ldlm_mode mode)
970 ldlm_lock_decref(lh, mode);
973 static inline bool mdt_slc_is_enabled(struct mdt_device *mdt)
975 return mdt->mdt_lut.lut_sync_lock_cancel == BLOCKING_SYNC_ON_CANCEL;
978 extern mdl_mode_t mdt_mdl_lock_modes[];
979 extern enum ldlm_mode mdt_dlm_lock_modes[];
981 static inline mdl_mode_t mdt_dlm_mode2mdl_mode(enum ldlm_mode mode)
983 LASSERT(IS_PO2(mode));
984 return mdt_mdl_lock_modes[mode];
987 static inline enum ldlm_mode mdt_mdl_mode2dlm_mode(mdl_mode_t mode)
989 LASSERT(IS_PO2(mode));
990 return mdt_dlm_lock_modes[mode];
994 extern struct ldlm_valblock_ops mdt_lvbo;
996 void mdt_enable_cos(struct mdt_device *, int);
997 int mdt_cos_is_enabled(struct mdt_device *);
1015 LPROC_MDT_SAMEDIR_RENAME,
1016 LPROC_MDT_CROSSDIR_RENAME,
1019 void mdt_counter_incr(struct ptlrpc_request *req, int opcode);
1020 void mdt_stats_counter_init(struct lprocfs_stats *stats);
1021 int mdt_procfs_init(struct mdt_device *mdt, const char *name);
1022 void mdt_procfs_fini(struct mdt_device *mdt);
1024 /* lustre/mdt_mdt_lproc.c */
1025 int lprocfs_mdt_open_files_seq_open(struct inode *inode,
1027 void mdt_rename_counter_tally(struct mdt_thread_info *info,
1028 struct mdt_device *mdt,
1029 struct ptlrpc_request *req,
1030 struct mdt_object *src, struct mdt_object *tgt);
1032 static inline struct obd_device *mdt2obd_dev(const struct mdt_device *mdt)
1034 return mdt->mdt_lu_dev.ld_obd;
1037 extern const struct lu_device_operations mdt_lu_ops;
1039 static inline char *mdt_obd_name(struct mdt_device *mdt)
1041 return mdt->mdt_lu_dev.ld_obd->obd_name;
1044 int mds_mod_init(void);
1045 void mds_mod_exit(void);
1047 static inline char *mdt_req_get_jobid(struct ptlrpc_request *req)
1049 struct obd_export *exp = req->rq_export;
1052 if (exp_connect_flags(exp) & OBD_CONNECT_JOBSTATS)
1053 jobid = lustre_msg_get_jobid(req->rq_reqmsg);
1058 #endif /* _MDT_INTERNAL_H */