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.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, 2012, Whamcloud, Inc.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
36 * lustre/mdt/mdt_internal.h
38 * Lustre Metadata Target (mdt) request handler
40 * Author: Peter Braam <braam@clusterfs.com>
41 * Author: Andreas Dilger <adilger@clusterfs.com>
42 * Author: Phil Schwan <phil@clusterfs.com>
43 * Author: Mike Shaver <shaver@clusterfs.com>
44 * Author: Nikita Danilov <nikita@clusterfs.com>
45 * Author: Huang Hua <huanghua@clusterfs.com>
48 #ifndef _MDT_INTERNAL_H
49 #define _MDT_INTERNAL_H
51 #if defined(__KERNEL__)
54 * struct ptlrpc_client
56 #include <lustre_net.h>
59 * struct obd_connect_data
60 * struct lustre_handle
62 #include <lustre/lustre_idl.h>
63 #include <lustre_disk.h>
64 #include <lu_target.h>
65 #include <md_object.h>
66 #include <lustre_fid.h>
67 #include <lustre_fld.h>
68 #include <lustre_req_layout.h>
69 #include <lustre_sec.h>
71 #include <lustre_idmap.h>
72 #include <lustre_eacl.h>
73 #include <lustre_fsfilt.h>
75 /* check if request's xid is equal to last one or not*/
76 static inline int req_xid_is_last(struct ptlrpc_request *req)
78 struct lsd_client_data *lcd = req->rq_export->exp_target_data.ted_lcd;
79 return (req->rq_xid == lcd->lcd_last_xid ||
80 req->rq_xid == lcd->lcd_last_close_xid);
84 /* file data for open files on MDS */
85 struct mdt_file_data {
86 struct portals_handle mfd_handle; /* must be first */
87 int mfd_mode; /* open mode provided by client */
88 cfs_list_t mfd_list; /* protected by med_open_lock */
89 __u64 mfd_xid; /* xid of the open request */
90 struct lustre_handle mfd_old_handle; /* old handle in replay case */
91 struct mdt_object *mfd_object; /* point to opened object */
94 /* mdt state flag bits */
95 #define MDT_FL_CFGLOG 0
96 #define MDT_FL_SYNCED 1
100 struct md_device mdt_md_dev;
101 struct ptlrpc_service *mdt_regular_service;
102 struct ptlrpc_service *mdt_readpage_service;
103 struct ptlrpc_service *mdt_xmds_service;
104 struct ptlrpc_service *mdt_setattr_service;
105 struct ptlrpc_service *mdt_mdsc_service;
106 struct ptlrpc_service *mdt_mdss_service;
107 struct ptlrpc_service *mdt_dtss_service;
108 struct ptlrpc_service *mdt_fld_service;
109 /* DLM name-space for meta-data locks maintained by this server */
110 struct ldlm_namespace *mdt_namespace;
111 /* ptlrpc handle for MDS->client connections (for lock ASTs). */
112 struct ptlrpc_client *mdt_ldlm_client;
113 /* underlying device */
114 struct obd_export *mdt_child_exp;
115 struct md_device *mdt_child;
116 struct dt_device *mdt_bottom;
117 struct obd_export *mdt_bottom_exp;
119 struct lu_target mdt_lut;
121 * Options bit-fields.
124 signed int mo_user_xattr :1,
131 /* mdt state flags */
132 unsigned long mdt_state;
133 /* lock to protect IOepoch */
134 cfs_spinlock_t mdt_ioepoch_lock;
137 /* transaction callbacks */
138 struct dt_txn_callback mdt_txn_cb;
140 /* these values should be updated from lov if necessary.
141 * or should be placed somewhere else. */
143 int mdt_max_cookiesize;
145 struct upcall_cache *mdt_identity_cache;
148 cfs_rwlock_t mdt_sptlrpc_lock;
149 struct sptlrpc_rule_set mdt_sptlrpc_rset;
151 /* capability keys */
152 unsigned long mdt_capa_timeout;
154 struct dt_object *mdt_ck_obj;
155 unsigned long mdt_ck_timeout;
156 unsigned long mdt_ck_expiry;
157 cfs_timer_t mdt_ck_timer;
158 struct ptlrpc_thread mdt_ck_thread;
159 struct lustre_capa_key mdt_capa_keys[2];
160 unsigned int mdt_capa_conf:1,
163 /* statfs optimization: we cache a bit */
164 struct obd_statfs mdt_osfs;
166 cfs_spinlock_t mdt_osfs_lock;
169 uid_t mdt_squash_uid;
170 gid_t mdt_squash_gid;
171 cfs_list_t mdt_nosquash_nids;
172 char *mdt_nosquash_str;
173 int mdt_nosquash_strlen;
174 cfs_rw_semaphore_t mdt_squash_sem;
176 cfs_proc_dir_entry_t *mdt_proc_entry;
177 struct lprocfs_stats *mdt_stats;
179 struct rename_stats mdt_rename_stats;
182 #define MDT_SERVICE_WATCHDOG_FACTOR (2)
183 #define MDT_ROCOMPAT_SUPP (OBD_ROCOMPAT_LOVOBJID)
184 #define MDT_INCOMPAT_SUPP (OBD_INCOMPAT_MDT | OBD_INCOMPAT_COMMON_LR | \
185 OBD_INCOMPAT_FID | OBD_INCOMPAT_IAM_DIR | \
186 OBD_INCOMPAT_LMM_VER | OBD_INCOMPAT_MULTI_OI)
187 #define MDT_COS_DEFAULT (0)
190 struct lu_object_header mot_header;
191 struct md_object mot_obj;
194 int mot_ioepoch_count;
196 /* Lock to protect object's IO epoch. */
197 cfs_mutex_t mot_ioepoch_mutex;
198 /* Lock to protect create_data */
199 cfs_mutex_t mot_lov_mutex;
202 enum mdt_object_flags {
203 /** SOM attributes are changed. */
204 MOF_SOM_CHANGE = (1 << 0),
206 * The SOM recovery state for mdt object.
207 * This state is an in-memory equivalent of an absent SOM EA, used
208 * instead of invalidating SOM EA while IOEpoch is still opened when
209 * a client eviction occurs or a client fails to obtain SOM attributes.
210 * It indicates that the last IOEpoch holder will need to obtain SOM
211 * attributes under [0;EOF] extent lock to flush all the client's
212 * cached of evicted from MDS clients (but not necessary evicted from
213 * OST) before taking ost attributes.
215 MOF_SOM_RECOV = (1 << 1),
216 /** File has been just created. */
217 MOF_SOM_CREATED = (1 << 2),
218 /** lov object has been created. */
219 MOF_LOV_CREATED = (1 << 3),
222 struct mdt_lock_handle {
223 /* Lock type, reg for cross-ref use or pdo lock. */
227 struct lustre_handle mlh_reg_lh;
228 ldlm_mode_t mlh_reg_mode;
231 struct lustre_handle mlh_pdo_lh;
232 ldlm_mode_t mlh_pdo_mode;
233 unsigned int mlh_pdo_hash;
237 MDT_LH_PARENT, /* parent lockh */
238 MDT_LH_CHILD, /* child lockh */
239 MDT_LH_OLD, /* old lockh for rename */
240 MDT_LH_NEW, /* new lockh for rename */
241 MDT_LH_RMT, /* used for return lh to caller */
250 struct mdt_reint_record {
251 mdt_reint_t rr_opcode;
252 const struct lustre_handle *rr_handle;
253 const struct lu_fid *rr_fid1;
254 const struct lu_fid *rr_fid2;
259 const void *rr_eadata;
262 const struct llog_cookie *rr_logcookies;
266 enum mdt_reint_flag {
267 MRF_OPEN_TRUNC = 1 << 0,
271 * Common data shared by mdt-level handlers. This is allocated per-thread to
272 * reduce stack consumption.
274 struct mdt_thread_info {
277 * The following members will be filled explicitly
278 * with specific data in mdt_thread_info_init().
280 /* TODO: move this into mdt_session_key(with LCT_SESSION), because
281 * request handling may migrate from one server thread to another.
283 struct req_capsule *mti_pill;
285 /* although we have export in req, there are cases when it is not
286 * available, e.g. closing files upon export destroy */
287 struct obd_export *mti_exp;
289 * A couple of lock handles.
291 struct mdt_lock_handle mti_lh[MDT_LH_NR];
293 struct mdt_device *mti_mdt;
294 const struct lu_env *mti_env;
297 * Additional fail id that can be set by handler. Passed to
298 * target_send_reply().
302 /* transaction number of current request */
308 * The following members will be filled expilictly
309 * with zero in mdt_thread_info_init(). These members may be used
316 struct md_attr mti_attr;
318 * Body for "habeo corpus" operations.
320 const struct mdt_body *mti_body;
322 * Host object. This is released at the end of mdt_handler().
324 struct mdt_object *mti_object;
326 * Lock request for "habeo clavis" operations.
328 const struct ldlm_request *mti_dlm_req;
330 __u32 mti_has_trans:1, /* has txn already? */
334 /* opdata for mdt_reint_open(), has the same as
335 * ldlm_reply:lock_policy_res1. mdt_update_last_rcvd() stores this
336 * value onto disk for recovery when mdt_trans_stop_cb() is called.
342 * The following members will be filled explicitly
343 * with zero in mdt_reint_unpack(), because they are only used
344 * by reint requests (including mdt_reint_open()).
348 * reint record. contains information for reint operations.
350 struct mdt_reint_record mti_rr;
352 /** md objects included in operation */
353 struct mdt_object *mti_mos;
354 __u64 mti_ver[PTLRPC_NUM_VERSIONS];
356 * Operation specification (currently create and lookup)
358 struct md_op_spec mti_spec;
362 * The following members will _NOT_ be initialized at all.
363 * DO NOT expect them to contain any valid value.
364 * They should be initialized explicitly by the user themselves.
367 /* XXX: If something is in a union, make sure they do not conflict */
369 struct lu_fid mti_tmp_fid1;
370 struct lu_fid mti_tmp_fid2;
371 ldlm_policy_data_t mti_policy; /* for mdt_object_lock() and
372 * mdt_rename_lock() */
373 struct ldlm_res_id mti_res_id; /* for mdt_object_lock() and
376 struct obd_uuid uuid[2]; /* for mdt_seq_init_cli() */
377 char ns_name[48]; /* for mdt_init0() */
378 struct lustre_cfg_bufs bufs; /* for mdt_stack_fini() */
379 struct obd_statfs osfs; /* for mdt_statfs() */
381 /* for mdt_readpage() */
382 struct lu_rdpg mti_rdpg;
383 /* for mdt_sendpage() */
384 struct l_wait_info mti_wait_info;
388 struct md_som_data data;
392 /* IO epoch related stuff. */
393 struct mdt_ioepoch *mti_ioepoch;
394 __u64 mti_replayepoch;
397 struct lu_buf mti_buf;
398 struct lustre_capa_key mti_capa_key;
400 /* Ops object filename */
401 struct lu_name mti_name;
404 static inline const struct md_device_operations *
405 mdt_child_ops(struct mdt_device * m)
407 LASSERT(m->mdt_child);
408 return m->mdt_child->md_ops;
411 static inline struct md_object *mdt_object_child(struct mdt_object *o)
414 return lu2md(lu_object_next(&o->mot_obj.mo_lu));
417 static inline struct ptlrpc_request *mdt_info_req(struct mdt_thread_info *info)
419 return info->mti_pill ? info->mti_pill->rc_req : NULL;
422 static inline int req_is_replay(struct ptlrpc_request *req)
424 LASSERT(req->rq_reqmsg);
425 return !!(lustre_msg_get_flags(req->rq_reqmsg) & MSG_REPLAY);
428 static inline __u64 mdt_conn_flags(struct mdt_thread_info *info)
430 LASSERT(info->mti_exp);
431 return info->mti_exp->exp_connect_flags;
434 static inline void mdt_object_get(const struct lu_env *env,
435 struct mdt_object *o)
438 lu_object_get(&o->mot_obj.mo_lu);
442 static inline void mdt_object_put(const struct lu_env *env,
443 struct mdt_object *o)
446 lu_object_put(env, &o->mot_obj.mo_lu);
450 static inline int mdt_object_exists(const struct mdt_object *o)
452 return lu_object_exists(&o->mot_obj.mo_lu);
455 static inline const struct lu_fid *mdt_object_fid(const struct mdt_object *o)
457 return lu_object_fid(&o->mot_obj.mo_lu);
460 static inline int mdt_object_obf(const struct mdt_object *o)
462 return lu_fid_eq(mdt_object_fid(o), &LU_OBF_FID);
465 static inline struct lu_site *mdt_lu_site(const struct mdt_device *mdt)
467 return mdt->mdt_md_dev.md_lu_dev.ld_site;
470 static inline struct md_site *mdt_md_site(const struct mdt_device *mdt)
472 return lu_site2md(mdt_lu_site(mdt));
475 static inline void mdt_export_evict(struct obd_export *exp)
477 class_fail_export(exp);
478 class_export_put(exp);
481 int mdt_get_disposition(struct ldlm_reply *rep, int flag);
482 void mdt_set_disposition(struct mdt_thread_info *info,
483 struct ldlm_reply *rep, int flag);
484 void mdt_clear_disposition(struct mdt_thread_info *info,
485 struct ldlm_reply *rep, int flag);
487 void mdt_lock_pdo_init(struct mdt_lock_handle *lh,
488 ldlm_mode_t lm, const char *name,
491 void mdt_lock_reg_init(struct mdt_lock_handle *lh,
494 int mdt_lock_setup(struct mdt_thread_info *info,
495 struct mdt_object *o,
496 struct mdt_lock_handle *lh);
498 int mdt_object_lock(struct mdt_thread_info *,
500 struct mdt_lock_handle *,
503 void mdt_object_unlock(struct mdt_thread_info *,
505 struct mdt_lock_handle *,
508 struct mdt_object *mdt_object_new(const struct lu_env *,
510 const struct lu_fid *);
511 struct mdt_object *mdt_object_find(const struct lu_env *,
513 const struct lu_fid *);
514 struct mdt_object *mdt_object_find_lock(struct mdt_thread_info *,
515 const struct lu_fid *,
516 struct mdt_lock_handle *,
518 void mdt_object_unlock_put(struct mdt_thread_info *,
520 struct mdt_lock_handle *,
523 void mdt_client_compatibility(struct mdt_thread_info *info);
525 int mdt_close_unpack(struct mdt_thread_info *info);
526 int mdt_reint_unpack(struct mdt_thread_info *info, __u32 op);
527 int mdt_reint_rec(struct mdt_thread_info *, struct mdt_lock_handle *);
528 void mdt_pack_attr2body(struct mdt_thread_info *info, struct mdt_body *b,
529 const struct lu_attr *attr, const struct lu_fid *fid);
531 int mdt_getxattr(struct mdt_thread_info *info);
532 int mdt_reint_setxattr(struct mdt_thread_info *info,
533 struct mdt_lock_handle *lh);
535 void mdt_lock_handle_init(struct mdt_lock_handle *lh);
536 void mdt_lock_handle_fini(struct mdt_lock_handle *lh);
538 void mdt_reconstruct(struct mdt_thread_info *, struct mdt_lock_handle *);
539 void mdt_reconstruct_generic(struct mdt_thread_info *mti,
540 struct mdt_lock_handle *lhc);
542 extern void target_recovery_fini(struct obd_device *obd);
543 extern void target_recovery_init(struct lu_target *lut,
544 svc_handler_t handler);
545 int mdt_fs_setup(const struct lu_env *, struct mdt_device *,
546 struct obd_device *, struct lustre_sb_info *lsi);
547 void mdt_fs_cleanup(const struct lu_env *, struct mdt_device *);
549 int mdt_export_stats_init(struct obd_device *obd,
550 struct obd_export *exp,
553 int mdt_pin(struct mdt_thread_info* info);
555 int mdt_lock_new_child(struct mdt_thread_info *info,
556 struct mdt_object *o,
557 struct mdt_lock_handle *child_lockh);
559 void mdt_mfd_set_mode(struct mdt_file_data *mfd,
562 int mdt_reint_open(struct mdt_thread_info *info,
563 struct mdt_lock_handle *lhc);
565 struct mdt_file_data *mdt_handle2mfd(struct mdt_thread_info *,
566 const struct lustre_handle *);
569 MDT_IOEPOCH_CLOSED = 0,
570 MDT_IOEPOCH_OPENED = 1,
571 MDT_IOEPOCH_GETATTR = 2,
579 int mdt_ioepoch_open(struct mdt_thread_info *info, struct mdt_object *o,
581 int mdt_object_is_som_enabled(struct mdt_object *mo);
582 int mdt_write_get(struct mdt_object *o);
583 void mdt_write_put(struct mdt_object *o);
584 int mdt_write_read(struct mdt_object *o);
585 struct mdt_file_data *mdt_mfd_new(void);
586 int mdt_mfd_close(struct mdt_thread_info *info, struct mdt_file_data *mfd);
587 void mdt_mfd_free(struct mdt_file_data *mfd);
588 int mdt_close(struct mdt_thread_info *info);
589 int mdt_attr_set(struct mdt_thread_info *info, struct mdt_object *mo,
590 struct md_attr *ma, int flags);
591 int mdt_done_writing(struct mdt_thread_info *info);
592 int mdt_fix_reply(struct mdt_thread_info *info);
593 int mdt_handle_last_unlink(struct mdt_thread_info *, struct mdt_object *,
594 const struct md_attr *);
595 void mdt_reconstruct_open(struct mdt_thread_info *, struct mdt_lock_handle *);
597 struct lu_buf *mdt_buf(const struct lu_env *env, void *area, ssize_t len);
598 const struct lu_buf *mdt_buf_const(const struct lu_env *env,
599 const void *area, ssize_t len);
601 void mdt_dump_lmm(int level, const struct lov_mds_md *lmm);
603 int mdt_check_ucred(struct mdt_thread_info *);
604 int mdt_init_ucred(struct mdt_thread_info *, struct mdt_body *);
605 int mdt_init_ucred_reint(struct mdt_thread_info *);
606 void mdt_exit_ucred(struct mdt_thread_info *);
607 int mdt_version_get_check(struct mdt_thread_info *, struct mdt_object *, int);
608 void mdt_version_get_save(struct mdt_thread_info *, struct mdt_object *, int);
609 int mdt_version_get_check_save(struct mdt_thread_info *, struct mdt_object *,
613 int mdt_init_sec_level(struct mdt_thread_info *);
614 int mdt_init_idmap(struct mdt_thread_info *);
615 void mdt_cleanup_idmap(struct mdt_export_data *);
616 int mdt_handle_idmap(struct mdt_thread_info *);
617 int ptlrpc_user_desc_do_idmap(struct ptlrpc_request *,
618 struct ptlrpc_user_desc *);
619 void mdt_body_reverse_idmap(struct mdt_thread_info *,
621 int mdt_remote_perm_reverse_idmap(struct ptlrpc_request *,
622 struct mdt_remote_perm *);
623 int mdt_fix_attr_ucred(struct mdt_thread_info *, __u32);
625 static inline struct mdt_device *mdt_dev(struct lu_device *d)
627 // LASSERT(lu_device_is_mdt(d));
628 return container_of0(d, struct mdt_device, mdt_md_dev.md_lu_dev);
631 static inline struct dt_object *mdt_obj2dt(struct mdt_object *mo)
633 struct lu_object *lo;
634 struct mdt_device *mdt = mdt_dev(mo->mot_obj.mo_lu.lo_dev);
636 lo = lu_object_locate(mo->mot_obj.mo_lu.lo_header,
637 mdt->mdt_bottom->dd_lu_dev.ld_type);
641 /* mdt/mdt_identity.c */
642 #define MDT_IDENTITY_UPCALL_PATH "/usr/sbin/l_getidentity"
644 extern struct upcall_cache_ops mdt_identity_upcall_cache_ops;
646 struct md_identity *mdt_identity_get(struct upcall_cache *, __u32);
648 void mdt_identity_put(struct upcall_cache *, struct md_identity *);
650 void mdt_flush_identity(struct upcall_cache *, int);
652 __u32 mdt_identity_get_perm(struct md_identity *, __u32, lnet_nid_t);
654 int mdt_pack_remote_perm(struct mdt_thread_info *, struct mdt_object *, void *);
656 extern struct lu_context_key mdt_thread_key;
657 /* debug issues helper starts here*/
658 static inline int mdt_fail_write(const struct lu_env *env,
659 struct dt_device *dd, int id)
661 if (OBD_FAIL_CHECK_ORSET(id, OBD_FAIL_ONCE)) {
662 CERROR(LUSTRE_MDT_NAME": cfs_fail_loc=%x, fail write ops\n",
664 return dd->dd_ops->dt_ro(env, dd);
665 /* We set FAIL_ONCE because we never "un-fail" a device */
671 static inline struct mdt_export_data *mdt_req2med(struct ptlrpc_request *req)
673 return &req->rq_export->exp_mdt_data;
676 typedef void (*mdt_reconstruct_t)(struct mdt_thread_info *mti,
677 struct mdt_lock_handle *lhc);
678 static inline int mdt_check_resent(struct mdt_thread_info *info,
679 mdt_reconstruct_t reconstruct,
680 struct mdt_lock_handle *lhc)
682 struct ptlrpc_request *req = mdt_info_req(info);
685 if (lustre_msg_get_flags(req->rq_reqmsg) & MSG_RESENT) {
686 if (req_xid_is_last(req)) {
687 reconstruct(info, lhc);
690 DEBUG_REQ(D_HA, req, "no reply for RESENT req (have "LPD64")",
691 req->rq_export->exp_target_data.ted_lcd->lcd_last_xid);
696 struct md_ucred *mdt_ucred(const struct mdt_thread_info *info);
698 static inline int is_identity_get_disabled(struct upcall_cache *cache)
700 return cache ? (strcmp(cache->uc_upcall, "NONE") == 0) : 1;
703 int mdt_blocking_ast(struct ldlm_lock*, struct ldlm_lock_desc*, void*, int);
705 /* Issues dlm lock on passed @ns, @f stores it lock handle into @lh. */
706 static inline int mdt_fid_lock(struct ldlm_namespace *ns,
707 struct lustre_handle *lh,
709 ldlm_policy_data_t *policy,
710 const struct ldlm_res_id *res_id,
711 int flags, const __u64 *client_cookie)
718 rc = ldlm_cli_enqueue_local(ns, res_id, LDLM_IBITS, policy,
719 mode, &flags, mdt_blocking_ast,
720 ldlm_completion_ast, NULL, NULL, 0,
722 return rc == ELDLM_OK ? 0 : -EIO;
725 static inline void mdt_fid_unlock(struct lustre_handle *lh,
728 ldlm_lock_decref(lh, mode);
731 extern mdl_mode_t mdt_mdl_lock_modes[];
732 extern ldlm_mode_t mdt_dlm_lock_modes[];
734 static inline mdl_mode_t mdt_dlm_mode2mdl_mode(ldlm_mode_t mode)
736 LASSERT(IS_PO2(mode));
737 return mdt_mdl_lock_modes[mode];
740 static inline ldlm_mode_t mdt_mdl_mode2dlm_mode(mdl_mode_t mode)
742 LASSERT(IS_PO2(mode));
743 return mdt_dlm_lock_modes[mode];
746 static inline struct lu_name *mdt_name(const struct lu_env *env,
747 char *name, int namelen)
749 struct lu_name *lname;
750 struct mdt_thread_info *mti;
752 LASSERT(namelen > 0);
753 /* trailing '\0' in buffer */
754 LASSERT(name[namelen] == '\0');
756 mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key);
757 lname = &mti->mti_name;
758 lname->ln_name = name;
759 lname->ln_namelen = namelen;
763 static inline struct lu_name *mdt_name_copy(struct lu_name *tlname,
764 struct lu_name *slname)
769 tlname->ln_name = slname->ln_name;
770 tlname->ln_namelen = slname->ln_namelen;
774 void mdt_enable_cos(struct mdt_device *, int);
775 int mdt_cos_is_enabled(struct mdt_device *);
776 int mdt_hsm_copytool_send(struct obd_export *exp);
794 LPROC_MDT_SAMEDIR_RENAME,
795 LPROC_MDT_CROSSDIR_RENAME,
798 void mdt_counter_incr(struct ptlrpc_request *req, int opcode);
799 void mdt_stats_counter_init(struct lprocfs_stats *stats);
800 void lprocfs_mdt_init_vars(struct lprocfs_static_vars *lvars);
801 int mdt_procfs_init(struct mdt_device *mdt, const char *name);
802 int mdt_procfs_fini(struct mdt_device *mdt);
803 void mdt_rename_counter_tally(struct mdt_thread_info *info,
804 struct mdt_device *mdt,
805 struct ptlrpc_request *req,
806 struct mdt_object *src, struct mdt_object *tgt);
808 void mdt_time_start(const struct mdt_thread_info *info);
809 void mdt_time_end(const struct mdt_thread_info *info, int idx);
812 int mdt_ck_thread_start(struct mdt_device *mdt);
813 void mdt_ck_thread_stop(struct mdt_device *mdt);
814 void mdt_ck_timer_callback(unsigned long castmeharder);
815 int mdt_capa_keys_init(const struct lu_env *env, struct mdt_device *mdt);
817 static inline void mdt_set_capainfo(struct mdt_thread_info *info, int offset,
818 const struct lu_fid *fid,
819 struct lustre_capa *capa)
821 struct md_capainfo *ci;
823 LASSERT(offset >= 0 && offset <= MD_CAPAINFO_MAX);
824 if (!info->mti_mdt->mdt_opts.mo_mds_capa ||
825 !(info->mti_exp->exp_connect_flags & OBD_CONNECT_MDS_CAPA))
828 ci = md_capainfo(info->mti_env);
830 ci->mc_fid[offset] = *fid;
831 ci->mc_capa[offset] = capa;
834 static inline void mdt_dump_capainfo(struct mdt_thread_info *info)
836 struct md_capainfo *ci = md_capainfo(info->mti_env);
841 for (i = 0; i < MD_CAPAINFO_MAX; i++) {
842 if (!ci->mc_capa[i]) {
843 CERROR("no capa for index %d "DFID"\n",
844 i, PFID(&ci->mc_fid[i]));
847 if (ci->mc_capa[i] == BYPASS_CAPA) {
848 CERROR("bypass for index %d "DFID"\n",
849 i, PFID(&ci->mc_fid[i]));
852 DEBUG_CAPA(D_ERROR, ci->mc_capa[i], "index %d", i);
856 static inline struct obd_device *mdt2obd_dev(const struct mdt_device *mdt)
858 return mdt->mdt_md_dev.md_lu_dev.ld_obd;
860 #endif /* __KERNEL__ */