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, 2016, 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
47 #include <libcfs/libcfs.h>
48 #include <libcfs/libcfs_hash.h>
49 #include <upcall_cache.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 /* Coordinator states. Keep the cdt_transition table in sync. */
95 enum cdt_states { CDT_STOPPED = 0,
104 static inline char *cdt_mdt_state2str(int state)
122 /* when multiple lock are needed, the lock order is
130 wait_queue_head_t cdt_waitq; /**< cdt wait queue */
131 bool cdt_event; /**< coordinator event */
132 struct lu_env cdt_env; /**< coordinator lustre
134 struct lu_context cdt_session; /** session for lu_ucred */
135 struct proc_dir_entry *cdt_proc_dir; /**< cdt /proc directory */
136 __u64 cdt_policy; /**< policy flags */
137 enum cdt_states cdt_state; /**< state */
138 spinlock_t cdt_state_lock; /**< cdt_state lock */
139 atomic_t cdt_compound_id; /**< compound id
141 __u64 cdt_last_cookie; /**< last cookie
143 struct rw_semaphore cdt_llog_lock; /**< protect llog
145 struct rw_semaphore cdt_agent_lock; /**< protect agent list */
146 struct rw_semaphore cdt_request_lock; /**< protect request
148 struct mutex cdt_restore_lock; /**< protect restore
150 cfs_time_t cdt_loop_period; /**< llog scan period */
151 cfs_time_t cdt_grace_delay; /**< request grace
153 cfs_time_t cdt_active_req_timeout; /**< request timeout */
154 __u32 cdt_default_archive_id; /**< archive id used
157 __u64 cdt_max_requests; /**< max count of started
159 atomic_t cdt_request_count; /**< current count of
160 * started requests */
161 /* started requests (struct cdt_agent_req:car_cookie_hash)
162 * indexed by cookie */
163 struct cfs_hash *cdt_request_cookie_hash;
164 /* started requests (struct cdt_agent_req:car_request_list) */
165 struct list_head cdt_request_list;
166 struct list_head cdt_agents; /**< list of register
168 struct list_head cdt_restore_hdl; /**< list of restore lock
170 /* Bitmasks indexed by the HSMA_XXX constants. */
171 __u64 cdt_user_request_mask;
172 __u64 cdt_group_request_mask;
173 __u64 cdt_other_request_mask;
176 /* mdt state flag bits */
177 #define MDT_FL_CFGLOG 0
178 #define MDT_FL_SYNCED 1
182 struct lu_device mdt_lu_dev;
183 struct seq_server_site mdt_seq_site;
184 /* DLM name-space for meta-data locks maintained by this server */
185 struct ldlm_namespace *mdt_namespace;
186 /* ptlrpc handle for MDS->client connections (for lock ASTs). */
187 struct ptlrpc_client *mdt_ldlm_client;
188 /* underlying device */
189 struct obd_export *mdt_child_exp;
190 struct md_device *mdt_child;
191 struct dt_device *mdt_bottom;
192 struct obd_export *mdt_bottom_exp;
194 struct lu_target mdt_lut;
196 * Options bit-fields.
199 unsigned int mo_user_xattr:1,
204 /* mdt state flags */
205 unsigned long mdt_state;
207 /* transaction callbacks */
208 struct dt_txn_callback mdt_txn_cb;
210 /* these values should be updated from lov if necessary.
211 * or should be placed somewhere else. */
216 struct upcall_cache *mdt_identity_cache;
218 unsigned int mdt_capa_conf:1,
219 /* Enable remote dir on non-MDT0 */
220 mdt_enable_remote_dir:1,
223 gid_t mdt_enable_remote_dir_gid;
225 /* lock for osfs and md_root */
228 /* statfs optimization: we cache a bit */
229 struct obd_statfs mdt_osfs;
233 struct root_squash_info mdt_squash;
235 struct rename_stats mdt_rename_stats;
236 struct lu_fid mdt_md_root_fid;
238 /* connection to quota master */
239 struct obd_export *mdt_qmt_exp;
240 /* quota master device associated with this MDT */
241 struct lu_device *mdt_qmt_dev;
243 struct coordinator mdt_coordinator;
245 /* inter-MDT connection count */
246 atomic_t mdt_mds_mds_conns;
248 /* MDT device async commit count, used for debug and sanity test */
249 atomic_t mdt_async_commit_count;
251 struct mdt_object *mdt_md_root;
254 #define MDT_SERVICE_WATCHDOG_FACTOR (2)
255 #define MDT_COS_DEFAULT (0)
258 struct lu_object_header mot_header;
259 struct lu_object mot_obj;
260 unsigned int mot_lov_created:1, /* lov object created */
261 mot_cache_attr:1; /* enable remote object
264 spinlock_t mot_write_lock;
265 /* Lock to protect create_data */
266 struct mutex mot_lov_mutex;
267 /* Lock to protect lease open.
268 * Lease open acquires write lock; normal open acquires read lock */
269 struct rw_semaphore mot_open_sem;
270 atomic_t mot_lease_count;
271 atomic_t mot_open_count;
274 struct mdt_lock_handle {
275 /* Lock type, reg for cross-ref use or pdo lock. */
279 struct lustre_handle mlh_reg_lh;
280 enum ldlm_mode mlh_reg_mode;
283 struct lustre_handle mlh_pdo_lh;
284 enum ldlm_mode mlh_pdo_mode;
285 unsigned int mlh_pdo_hash;
287 /* Remote regular lock */
288 struct lustre_handle mlh_rreg_lh;
289 enum ldlm_mode mlh_rreg_mode;
293 MDT_LH_PARENT, /* parent lockh */
294 MDT_LH_CHILD, /* child lockh */
295 MDT_LH_OLD, /* old lockh for rename */
296 MDT_LH_LAYOUT = MDT_LH_OLD, /* layout lock */
297 MDT_LH_NEW, /* new lockh for rename */
298 MDT_LH_RMT, /* used for return lh to caller */
299 MDT_LH_LOCAL, /* local lock never return to client */
308 /* Special magical errno for communicaiton between mdt_reint_open()
309 * and mdt_intent_reint() which means return the lock to the client
310 * for subsequent cross ref open. Previously we used plain -EREMOTE
311 * but other functions called in that path might return it too and
312 * confuse us. This is not returned to the client. See LU-5370. */
313 #define MDT_EREMOTE_OPEN (EREMOTE + 1024)
315 struct mdt_reint_record {
316 mdt_reint_t rr_opcode;
317 const struct lustre_handle *rr_handle;
318 const struct lu_fid *rr_fid1;
319 const struct lu_fid *rr_fid2;
320 struct lu_name rr_name;
321 struct lu_name rr_tgt_name;
327 enum mdt_reint_flag {
328 MRF_OPEN_TRUNC = 1 << 0,
332 * Common data shared by mdt-level handlers. This is allocated per-thread to
333 * reduce stack consumption.
335 struct mdt_thread_info {
338 * The following members will be filled explicitly
339 * with specific data in mdt_thread_info_init().
341 /* TODO: move this into mdt_session_key(with LCT_SESSION), because
342 * request handling may migrate from one server thread to another.
344 struct req_capsule *mti_pill;
346 /* although we have export in req, there are cases when it is not
347 * available, e.g. closing files upon export destroy */
348 struct obd_export *mti_exp;
350 * A couple of lock handles.
352 struct mdt_lock_handle mti_lh[MDT_LH_NR];
354 struct mdt_device *mti_mdt;
355 const struct lu_env *mti_env;
357 /* transaction number of current request */
363 * The following members will be filled expilictly
364 * with zero in mdt_thread_info_init(). These members may be used
371 struct md_attr mti_attr;
373 * Body for "habeo corpus" operations.
375 const struct mdt_body *mti_body;
377 * Host object. This is released at the end of mdt_handler().
379 struct mdt_object *mti_object;
381 * Lock request for "habeo clavis" operations.
383 const struct ldlm_request *mti_dlm_req;
385 __u32 mti_has_trans:1, /* has txn already? */
387 /* big_lmm buffer was used and must be used in reply */
391 /* opdata for mdt_reint_open(), has the same as
392 * ldlm_reply:lock_policy_res1. mdt_update_last_rcvd() stores this
393 * value onto disk for recovery when mdt_trans_stop_cb() is called.
399 * The following members will be filled explicitly
400 * with zero in mdt_reint_unpack(), because they are only used
401 * by reint requests (including mdt_reint_open()).
405 * reint record. contains information for reint operations.
407 struct mdt_reint_record mti_rr;
409 __u64 mti_ver[PTLRPC_NUM_VERSIONS];
411 * Operation specification (currently create and lookup)
413 struct md_op_spec mti_spec;
417 * The following members will _NOT_ be initialized at all.
418 * DO NOT expect them to contain any valid value.
419 * They should be initialized explicitly by the user themselves.
422 /* XXX: If something is in a union, make sure they do not conflict */
423 struct lu_fid mti_tmp_fid1;
424 struct lu_fid mti_tmp_fid2;
425 union ldlm_policy_data mti_policy; /* for mdt_object_lock() */
426 struct ldlm_res_id mti_res_id; /* and mdt_rename_lock() */
428 struct obd_uuid uuid[2]; /* for mdt_seq_init_cli() */
429 char ns_name[48];/* for mdt_init0() */
430 struct lustre_cfg_bufs bufs; /* for mdt_stack_fini() */
431 struct obd_statfs osfs; /* for mdt_statfs() */
433 /* for mdt_readpage() */
434 struct lu_rdpg mti_rdpg;
435 /* for mdt_sendpage() */
436 struct l_wait_info mti_wait_info;
443 struct lustre_handle mti_close_handle;
445 struct lu_buf mti_buf;
446 struct lu_buf mti_big_buf;
448 /* Ops object filename */
449 struct lu_name mti_name;
450 /* per-thread values, can be re-used, may be vmalloc'd */
455 /* should be enough to fit lustre_mdt_attrs */
456 char mti_xattr_buf[128];
457 struct ldlm_enqueue_info mti_einfo;
458 struct tg_reply_data *mti_reply_data;
461 extern struct lu_context_key mdt_thread_key;
463 static inline struct mdt_thread_info *mdt_th_info(const struct lu_env *env)
465 struct mdt_thread_info *mti;
467 lu_env_refill((void *)env);
468 mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key);
473 struct cdt_req_progress {
474 struct mutex crp_lock; /**< protect tree */
475 struct interval_node *crp_root; /**< tree to track extent
477 struct interval_node **crp_node; /**< buffer for tree nodes
478 * vector of fixed size
480 int crp_cnt; /**< # of used nodes */
481 int crp_max; /**< # of allocated nodes */
484 struct cdt_agent_req {
485 struct hlist_node car_cookie_hash; /**< find req by cookie */
486 struct list_head car_request_list; /**< to chain all the req. */
487 atomic_t car_refcount; /**< reference counter */
488 __u64 car_compound_id; /**< compound id */
489 __u64 car_flags; /**< request original flags */
490 struct obd_uuid car_uuid; /**< agent doing the req. */
491 __u32 car_archive_id; /**< archive id */
492 int car_canceled; /**< request was canceled */
493 cfs_time_t car_req_start; /**< start time */
494 cfs_time_t car_req_update; /**< last update time */
495 struct hsm_action_item *car_hai; /**< req. to the agent */
496 struct cdt_req_progress car_progress; /**< track data mvt
499 extern struct kmem_cache *mdt_hsm_car_kmem;
502 struct list_head ha_list; /**< to chain the agents */
503 struct obd_uuid ha_uuid; /**< agent uuid */
504 __u32 *ha_archive_id; /**< archive id */
505 int ha_archive_cnt; /**< number of archive entries
506 * 0 means any archive */
507 atomic_t ha_requests; /**< current request count */
508 atomic_t ha_success; /**< number of successful
510 atomic_t ha_failure; /**< number of failed actions */
513 struct cdt_restore_handle {
514 struct list_head crh_list; /**< to chain the handle */
515 struct lu_fid crh_fid; /**< fid of the object */
516 struct ldlm_extent crh_extent; /**< extent of the restore */
517 struct mdt_lock_handle crh_lh; /**< lock handle */
519 extern struct kmem_cache *mdt_hsm_cdt_kmem; /** restore handle slab cache */
521 static inline const struct md_device_operations *
522 mdt_child_ops(struct mdt_device * m)
524 LASSERT(m->mdt_child);
525 return m->mdt_child->md_ops;
528 static inline struct md_object *mdt_object_child(struct mdt_object *o)
531 return lu2md(lu_object_next(&o->mot_obj));
534 static inline struct ptlrpc_request *mdt_info_req(struct mdt_thread_info *info)
536 return info->mti_pill ? info->mti_pill->rc_req : NULL;
539 static inline __u64 mdt_conn_flags(struct mdt_thread_info *info)
541 LASSERT(info->mti_exp);
542 return exp_connect_flags(info->mti_exp);
545 static inline void mdt_object_get(const struct lu_env *env,
546 struct mdt_object *o)
549 lu_object_get(&o->mot_obj);
553 static inline void mdt_object_put(const struct lu_env *env,
554 struct mdt_object *o)
557 lu_object_put(env, &o->mot_obj);
561 static inline int mdt_object_exists(const struct mdt_object *o)
563 return lu_object_exists(&o->mot_obj);
566 static inline int mdt_object_remote(const struct mdt_object *o)
568 return lu_object_remote(&o->mot_obj);
571 static inline const struct lu_fid *mdt_object_fid(const struct mdt_object *o)
573 return lu_object_fid(&o->mot_obj);
576 static inline struct lu_site *mdt_lu_site(const struct mdt_device *mdt)
578 return mdt->mdt_lu_dev.ld_site;
581 static inline struct seq_server_site *mdt_seq_site(struct mdt_device *mdt)
583 return &mdt->mdt_seq_site;
586 static inline void mdt_export_evict(struct obd_export *exp)
588 class_fail_export(exp);
591 /* Here we use LVB_TYPE to check dne client, because it is
592 * also landed on 2.4. */
593 static inline bool mdt_is_dne_client(struct obd_export *exp)
595 return !!(exp_connect_flags(exp) & OBD_CONNECT_LVB_TYPE);
598 static inline bool mdt_is_striped_client(struct obd_export *exp)
600 return exp_connect_flags(exp) & OBD_CONNECT_DIR_STRIPE;
603 __u64 mdt_get_disposition(struct ldlm_reply *rep, __u64 op_flag);
604 void mdt_set_disposition(struct mdt_thread_info *info,
605 struct ldlm_reply *rep, __u64 op_flag);
606 void mdt_clear_disposition(struct mdt_thread_info *info,
607 struct ldlm_reply *rep, __u64 op_flag);
609 void mdt_lock_pdo_init(struct mdt_lock_handle *lh, enum ldlm_mode lock_mode,
610 const struct lu_name *lname);
612 void mdt_lock_reg_init(struct mdt_lock_handle *lh, enum ldlm_mode lm);
614 int mdt_lock_setup(struct mdt_thread_info *info, struct mdt_object *mo,
615 struct mdt_lock_handle *lh);
617 int mdt_check_resent_lock(struct mdt_thread_info *info, struct mdt_object *mo,
618 struct mdt_lock_handle *lhc);
620 int mdt_object_lock(struct mdt_thread_info *info, struct mdt_object *mo,
621 struct mdt_lock_handle *lh, __u64 ibits);
623 int mdt_reint_object_lock(struct mdt_thread_info *info, struct mdt_object *o,
624 struct mdt_lock_handle *lh, __u64 ibits,
627 int mdt_object_lock_try(struct mdt_thread_info *info, struct mdt_object *mo,
628 struct mdt_lock_handle *lh, __u64 ibits);
630 int mdt_reint_object_lock_try(struct mdt_thread_info *info,
631 struct mdt_object *o, struct mdt_lock_handle *lh,
632 __u64 ibits, bool cos_incompat);
634 void mdt_object_unlock(struct mdt_thread_info *info, struct mdt_object *mo,
635 struct mdt_lock_handle *lh, int decref);
637 struct mdt_object *mdt_object_new(const struct lu_env *env,
639 const struct lu_fid *);
640 struct mdt_object *mdt_object_find(const struct lu_env *,
642 const struct lu_fid *);
643 struct mdt_object *mdt_object_find_lock(struct mdt_thread_info *,
644 const struct lu_fid *,
645 struct mdt_lock_handle *,
647 void mdt_object_unlock_put(struct mdt_thread_info *,
649 struct mdt_lock_handle *,
652 void mdt_client_compatibility(struct mdt_thread_info *info);
654 int mdt_remote_object_lock(struct mdt_thread_info *mti,
655 struct mdt_object *o, const struct lu_fid *fid,
656 struct lustre_handle *lh,
657 enum ldlm_mode mode, __u64 ibits, bool nonblock,
660 enum mdt_name_flags {
664 int mdt_name_unpack(struct req_capsule *pill,
665 const struct req_msg_field *field,
667 enum mdt_name_flags flags);
668 int mdt_close_unpack(struct mdt_thread_info *info);
669 int mdt_reint_unpack(struct mdt_thread_info *info, __u32 op);
670 void mdt_fix_lov_magic(struct mdt_thread_info *info, void *eadata);
671 int mdt_reint_rec(struct mdt_thread_info *, struct mdt_lock_handle *);
672 #ifdef CONFIG_FS_POSIX_ACL
673 int mdt_pack_acl2body(struct mdt_thread_info *info, struct mdt_body *repbody,
674 struct mdt_object *o, struct lu_nodemap *nodemap);
676 void mdt_pack_attr2body(struct mdt_thread_info *info, struct mdt_body *b,
677 const struct lu_attr *attr, const struct lu_fid *fid);
679 int mdt_getxattr(struct mdt_thread_info *info);
680 int mdt_reint_setxattr(struct mdt_thread_info *info,
681 struct mdt_lock_handle *lh);
683 void mdt_lock_handle_init(struct mdt_lock_handle *lh);
684 void mdt_lock_handle_fini(struct mdt_lock_handle *lh);
686 void mdt_reconstruct(struct mdt_thread_info *, struct mdt_lock_handle *);
687 void mdt_reconstruct_generic(struct mdt_thread_info *mti,
688 struct mdt_lock_handle *lhc);
690 extern void target_recovery_fini(struct obd_device *obd);
691 extern void target_recovery_init(struct lu_target *lut,
692 svc_handler_t handler);
693 int mdt_fs_setup(const struct lu_env *, struct mdt_device *,
694 struct obd_device *, struct lustre_sb_info *lsi);
695 void mdt_fs_cleanup(const struct lu_env *, struct mdt_device *);
697 int mdt_export_stats_init(struct obd_device *obd,
698 struct obd_export *exp,
701 int mdt_lock_new_child(struct mdt_thread_info *info,
702 struct mdt_object *o,
703 struct mdt_lock_handle *child_lockh);
705 void mdt_mfd_set_mode(struct mdt_file_data *mfd,
708 int mdt_reint_open(struct mdt_thread_info *info,
709 struct mdt_lock_handle *lhc);
711 struct mdt_file_data *mdt_handle2mfd(struct mdt_export_data *med,
712 const struct lustre_handle *handle,
715 int mdt_get_info(struct tgt_session_info *tsi);
716 int mdt_attr_get_complex(struct mdt_thread_info *info,
717 struct mdt_object *o, struct md_attr *ma);
718 int mdt_big_xattr_get(struct mdt_thread_info *info, struct mdt_object *o,
720 int mdt_stripe_get(struct mdt_thread_info *info, struct mdt_object *o,
721 struct md_attr *ma, const char *name);
722 int mdt_write_get(struct mdt_object *o);
723 void mdt_write_put(struct mdt_object *o);
724 int mdt_write_read(struct mdt_object *o);
725 struct mdt_file_data *mdt_mfd_new(const struct mdt_export_data *med);
726 int mdt_mfd_close(struct mdt_thread_info *info, struct mdt_file_data *mfd);
727 void mdt_mfd_free(struct mdt_file_data *mfd);
728 int mdt_close(struct tgt_session_info *tsi);
729 int mdt_add_dirty_flag(struct mdt_thread_info *info, struct mdt_object *mo,
731 int mdt_fix_reply(struct mdt_thread_info *info);
732 int mdt_handle_last_unlink(struct mdt_thread_info *, struct mdt_object *,
733 const struct md_attr *);
734 void mdt_reconstruct_open(struct mdt_thread_info *, struct mdt_lock_handle *);
736 struct lu_buf *mdt_buf(const struct lu_env *env, void *area, ssize_t len);
737 const struct lu_buf *mdt_buf_const(const struct lu_env *env,
738 const void *area, ssize_t len);
740 void mdt_dump_lmm(int level, const struct lov_mds_md *lmm, __u64 valid);
741 void mdt_dump_lmv(unsigned int level, const union lmv_mds_md *lmv);
743 bool allow_client_chgrp(struct mdt_thread_info *info, struct lu_ucred *uc);
744 int mdt_check_ucred(struct mdt_thread_info *);
745 int mdt_init_ucred(struct mdt_thread_info *, struct mdt_body *);
746 int mdt_init_ucred_intent_getattr(struct mdt_thread_info *, struct mdt_body *);
747 int mdt_init_ucred_reint(struct mdt_thread_info *);
748 void mdt_exit_ucred(struct mdt_thread_info *);
749 int mdt_version_get_check(struct mdt_thread_info *, struct mdt_object *, int);
750 void mdt_version_get_save(struct mdt_thread_info *, struct mdt_object *, int);
751 int mdt_version_get_check_save(struct mdt_thread_info *, struct mdt_object *,
753 void mdt_thread_info_init(struct ptlrpc_request *req,
754 struct mdt_thread_info *mti);
755 void mdt_thread_info_fini(struct mdt_thread_info *mti);
756 struct mdt_thread_info *tsi2mdt_info(struct tgt_session_info *tsi);
758 int mdt_hsm_attr_set(struct mdt_thread_info *info, struct mdt_object *obj,
759 const struct md_hsm *mh);
761 int mdt_remote_blocking_ast(struct ldlm_lock *lock, struct ldlm_lock_desc *desc,
762 void *data, int flag);
763 int mdt_links_read(struct mdt_thread_info *info,
764 struct mdt_object *mdt_obj,
765 struct linkea_data *ldata);
766 int mdt_close_internal(struct mdt_thread_info *info, struct ptlrpc_request *req,
767 struct mdt_body *repbody);
769 static inline struct mdt_device *mdt_dev(struct lu_device *d)
771 return container_of0(d, struct mdt_device, mdt_lu_dev);
774 static inline struct mdt_object *mdt_obj(struct lu_object *o)
776 return container_of0(o, struct mdt_object, mot_obj);
779 static inline struct dt_object *mdt_obj2dt(struct mdt_object *mo)
781 struct lu_object *lo;
782 struct mdt_device *mdt = mdt_dev(mo->mot_obj.lo_dev);
784 lo = lu_object_locate(mo->mot_obj.lo_header,
785 mdt->mdt_bottom->dd_lu_dev.ld_type);
790 static inline bool agent_req_in_final_state(enum agent_req_status ars)
792 return ((ars == ARS_SUCCEED) || (ars == ARS_FAILED) ||
793 (ars == ARS_CANCELED));
796 /* mdt/mdt_identity.c */
797 #define MDT_IDENTITY_UPCALL_PATH "/usr/sbin/l_getidentity"
799 extern struct upcall_cache_ops mdt_identity_upcall_cache_ops;
801 struct md_identity *mdt_identity_get(struct upcall_cache *, __u32);
803 void mdt_identity_put(struct upcall_cache *, struct md_identity *);
805 void mdt_flush_identity(struct upcall_cache *, int);
807 __u32 mdt_identity_get_perm(struct md_identity *, lnet_nid_t);
809 /* mdt/mdt_recovery.c */
810 __u64 mdt_req_from_lrd(struct ptlrpc_request *req, struct tg_reply_data *trd);
813 int mdt_hsm_state_get(struct tgt_session_info *tsi);
814 int mdt_hsm_state_set(struct tgt_session_info *tsi);
815 int mdt_hsm_action(struct tgt_session_info *tsi);
816 int mdt_hsm_progress(struct tgt_session_info *tsi);
817 int mdt_hsm_ct_register(struct tgt_session_info *tsi);
818 int mdt_hsm_ct_unregister(struct tgt_session_info *tsi);
819 int mdt_hsm_request(struct tgt_session_info *tsi);
821 /* mdt/mdt_hsm_cdt_actions.c */
822 extern const struct file_operations mdt_hsm_actions_fops;
823 void dump_llog_agent_req_rec(const char *prefix,
824 const struct llog_agent_req_rec *larr);
825 int cdt_llog_process(const struct lu_env *env, struct mdt_device *mdt,
826 llog_cb_t cb, void *data, int rw);
827 int mdt_agent_record_add(const struct lu_env *env, struct mdt_device *mdt,
828 __u64 compound_id, __u32 archive_id,
829 __u64 flags, struct hsm_action_item *hai);
830 int mdt_agent_record_update(const struct lu_env *env,
831 struct mdt_device *mdt, __u64 *cookies,
832 int cookies_count, enum agent_req_status status);
834 /* mdt/mdt_hsm_cdt_agent.c */
835 extern const struct file_operations mdt_hsm_agent_fops;
836 int mdt_hsm_agent_register(struct mdt_thread_info *info,
837 const struct obd_uuid *uuid,
838 int nr_archives, __u32 *archive_num);
839 int mdt_hsm_agent_register_mask(struct mdt_thread_info *info,
840 const struct obd_uuid *uuid,
842 int mdt_hsm_agent_unregister(struct mdt_thread_info *info,
843 const struct obd_uuid *uuid);
844 int mdt_hsm_agent_update_statistics(struct coordinator *cdt,
845 int succ_rq, int fail_rq, int new_rq,
846 const struct obd_uuid *uuid);
847 int mdt_hsm_find_best_agent(struct coordinator *cdt, __u32 archive,
848 struct obd_uuid *uuid);
849 int mdt_hsm_agent_send(struct mdt_thread_info *mti, struct hsm_action_list *hal,
851 int mdt_hsm_coordinator_update(struct mdt_thread_info *mti,
852 struct hsm_progress_kernel *pgs);
853 /* mdt/mdt_hsm_cdt_client.c */
854 int mdt_hsm_add_actions(struct mdt_thread_info *info,
855 struct hsm_action_list *hal);
856 int mdt_hsm_get_actions(struct mdt_thread_info *mti,
857 struct hsm_action_list *hal);
858 bool mdt_hsm_restore_is_running(struct mdt_thread_info *mti,
859 const struct lu_fid *fid);
860 /* mdt/mdt_hsm_cdt_requests.c */
861 extern struct cfs_hash_ops cdt_request_cookie_hash_ops;
862 extern const struct file_operations mdt_hsm_active_requests_fops;
863 void dump_requests(char *prefix, struct coordinator *cdt);
864 struct cdt_agent_req *mdt_cdt_alloc_request(__u64 compound_id, __u32 archive_id,
865 __u64 flags, struct obd_uuid *uuid,
866 struct hsm_action_item *hai);
867 void mdt_cdt_free_request(struct cdt_agent_req *car);
868 int mdt_cdt_add_request(struct coordinator *cdt, struct cdt_agent_req *new_car);
869 struct cdt_agent_req *mdt_cdt_find_request(struct coordinator *cdt, u64 cookie);
870 void mdt_cdt_get_work_done(struct cdt_agent_req *car, __u64 *done_sz);
871 void mdt_cdt_get_request(struct cdt_agent_req *car);
872 void mdt_cdt_put_request(struct cdt_agent_req *car);
873 struct cdt_agent_req *mdt_cdt_update_request(struct coordinator *cdt,
874 const struct hsm_progress_kernel *pgs);
875 int mdt_cdt_remove_request(struct coordinator *cdt, __u64 cookie);
876 /* mdt/mdt_coordinator.c */
877 void mdt_hsm_dump_hal(int level, const char *prefix,
878 struct hsm_action_list *hal);
879 struct cdt_restore_handle *mdt_hsm_restore_hdl_find(struct coordinator *cdt,
880 const struct lu_fid *fid);
881 /* coordinator management */
882 int mdt_hsm_cdt_init(struct mdt_device *mdt);
883 int mdt_hsm_cdt_stop(struct mdt_device *mdt);
884 int mdt_hsm_cdt_fini(struct mdt_device *mdt);
885 int mdt_hsm_cdt_wakeup(struct mdt_device *mdt);
887 /* coordinator control /proc interface */
888 ssize_t mdt_hsm_cdt_control_seq_write(struct file *file,
889 const char __user *buffer,
890 size_t count, loff_t *off);
891 int mdt_hsm_cdt_control_seq_show(struct seq_file *m, void *data);
892 int hsm_cdt_procfs_init(struct mdt_device *mdt);
893 void hsm_cdt_procfs_fini(struct mdt_device *mdt);
894 struct lprocfs_vars *hsm_cdt_get_proc_vars(void);
896 struct mdt_object *mdt_hsm_get_md_hsm(struct mdt_thread_info *mti,
897 const struct lu_fid *fid,
899 /* actions/request helpers */
900 int mdt_hsm_add_hal(struct mdt_thread_info *mti,
901 struct hsm_action_list *hal, struct obd_uuid *uuid);
902 bool mdt_hsm_is_action_compat(const struct hsm_action_item *hai,
903 u32 archive_id, u64 rq_flags,
904 const struct md_hsm *hsm);
905 int mdt_hsm_update_request_state(struct mdt_thread_info *mti,
906 struct hsm_progress_kernel *pgs,
907 const int update_record);
909 int mdt_close_swap_layouts(struct mdt_thread_info *info,
910 struct mdt_object *o, struct md_attr *ma);
912 extern struct lu_context_key mdt_thread_key;
914 /* debug issues helper starts here*/
915 static inline int mdt_fail_write(const struct lu_env *env,
916 struct dt_device *dd, int id)
918 if (OBD_FAIL_CHECK_ORSET(id, OBD_FAIL_ONCE)) {
919 CERROR(LUSTRE_MDT_NAME": cfs_fail_loc=%x, fail write ops\n",
921 return dt_ro(env, dd);
922 /* We set FAIL_ONCE because we never "un-fail" a device */
928 static inline struct mdt_export_data *mdt_req2med(struct ptlrpc_request *req)
930 return &req->rq_export->exp_mdt_data;
933 static inline struct mdt_device *mdt_exp2dev(struct obd_export *exp)
935 return mdt_dev(exp->exp_obd->obd_lu_dev);
938 static inline bool mdt_rdonly(struct obd_export *exp)
940 if (exp_connect_flags(exp) & OBD_CONNECT_RDONLY ||
941 mdt_exp2dev(exp)->mdt_bottom->dd_rdonly)
946 typedef void (*mdt_reconstruct_t)(struct mdt_thread_info *mti,
947 struct mdt_lock_handle *lhc);
948 static inline int mdt_check_resent(struct mdt_thread_info *info,
949 mdt_reconstruct_t reconstruct,
950 struct mdt_lock_handle *lhc)
952 struct ptlrpc_request *req = mdt_info_req(info);
956 if (lustre_msg_get_flags(req->rq_reqmsg) & MSG_RESENT) {
957 OBD_ALLOC_PTR(info->mti_reply_data);
958 if (info->mti_reply_data == NULL)
961 if (req_can_reconstruct(req, info->mti_reply_data)) {
962 reconstruct(info, lhc);
966 "no reply data found for RESENT req");
969 OBD_FREE_PTR(info->mti_reply_data);
970 info->mti_reply_data = NULL;
975 struct lu_ucred *mdt_ucred(const struct mdt_thread_info *info);
976 struct lu_ucred *mdt_ucred_check(const struct mdt_thread_info *info);
978 static inline int is_identity_get_disabled(struct upcall_cache *cache)
980 return cache ? (strcmp(cache->uc_upcall, "NONE") == 0) : 1;
983 int mdt_blocking_ast(struct ldlm_lock*, struct ldlm_lock_desc*, void*, int);
985 /* Issues dlm lock on passed @ns, @f stores it lock handle into @lh. */
986 static inline int mdt_fid_lock(struct ldlm_namespace *ns,
987 struct lustre_handle *lh, enum ldlm_mode mode,
988 union ldlm_policy_data *policy,
989 const struct ldlm_res_id *res_id,
990 __u64 flags, const __u64 *client_cookie)
997 rc = ldlm_cli_enqueue_local(ns, res_id, LDLM_IBITS, policy,
998 mode, &flags, mdt_blocking_ast,
999 ldlm_completion_ast, NULL, NULL, 0,
1000 LVB_T_NONE, client_cookie, lh);
1001 return rc == ELDLM_OK ? 0 : -EIO;
1004 static inline void mdt_fid_unlock(struct lustre_handle *lh, enum ldlm_mode mode)
1006 ldlm_lock_decref(lh, mode);
1009 static inline bool mdt_slc_is_enabled(struct mdt_device *mdt)
1011 return mdt->mdt_lut.lut_sync_lock_cancel == BLOCKING_SYNC_ON_CANCEL;
1014 extern mdl_mode_t mdt_mdl_lock_modes[];
1015 extern enum ldlm_mode mdt_dlm_lock_modes[];
1017 /* LCK_MINMODE which is zero returns false for is_power_of_2 */
1019 static inline mdl_mode_t mdt_dlm_mode2mdl_mode(enum ldlm_mode mode)
1021 LASSERT(mode == LCK_MINMODE || is_power_of_2(mode));
1022 return mdt_mdl_lock_modes[mode];
1025 static inline enum ldlm_mode mdt_mdl_mode2dlm_mode(mdl_mode_t mode)
1027 LASSERT(mode == MDL_MINMODE || is_power_of_2(mode));
1028 return mdt_dlm_lock_modes[mode];
1032 extern struct ldlm_valblock_ops mdt_lvbo;
1034 void mdt_enable_cos(struct mdt_device *, int);
1035 int mdt_cos_is_enabled(struct mdt_device *);
1053 LPROC_MDT_SAMEDIR_RENAME,
1054 LPROC_MDT_CROSSDIR_RENAME,
1057 void mdt_counter_incr(struct ptlrpc_request *req, int opcode);
1058 void mdt_stats_counter_init(struct lprocfs_stats *stats);
1059 int mdt_procfs_init(struct mdt_device *mdt, const char *name);
1060 void mdt_procfs_fini(struct mdt_device *mdt);
1062 /* lustre/mdt_mdt_lproc.c */
1063 int lprocfs_mdt_open_files_seq_open(struct inode *inode,
1065 void mdt_rename_counter_tally(struct mdt_thread_info *info,
1066 struct mdt_device *mdt,
1067 struct ptlrpc_request *req,
1068 struct mdt_object *src, struct mdt_object *tgt);
1070 static inline struct obd_device *mdt2obd_dev(const struct mdt_device *mdt)
1072 return mdt->mdt_lu_dev.ld_obd;
1075 extern const struct lu_device_operations mdt_lu_ops;
1077 static inline char *mdt_obd_name(struct mdt_device *mdt)
1079 return mdt->mdt_lu_dev.ld_obd->obd_name;
1082 int mds_mod_init(void);
1083 void mds_mod_exit(void);
1085 static inline char *mdt_req_get_jobid(struct ptlrpc_request *req)
1087 struct obd_export *exp = req->rq_export;
1090 if (exp_connect_flags(exp) & OBD_CONNECT_JOBSTATS)
1091 jobid = lustre_msg_get_jobid(req->rq_reqmsg);
1096 #endif /* _MDT_INTERNAL_H */