1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright 2008 Sun Microsystems, Inc. All rights reserved
30 * Use is subject to license terms.
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 <md_object.h>
64 #include <dt_object.h>
65 #include <lustre_fid.h>
66 #include <lustre_fld.h>
67 #include <lustre_req_layout.h>
68 /* LR_CLIENT_SIZE, etc. */
69 #include <lustre_disk.h>
70 #include <lustre_sec.h>
72 #include <lustre_idmap.h>
73 #include <lustre_eacl.h>
74 #include <lustre_fsfilt.h>
76 static inline __u64 lcd_last_transno(struct lsd_client_data *lcd)
78 return max(lcd->lcd_last_transno, lcd->lcd_last_close_transno);
81 static inline __u64 lcd_last_xid(struct lsd_client_data *lcd)
83 return max(lcd->lcd_last_xid, lcd->lcd_last_close_xid);
86 /* check if request's xid is equal to last one or not*/
87 static inline int req_xid_is_last(struct ptlrpc_request *req)
89 struct lsd_client_data *lcd = req->rq_export->exp_mdt_data.med_lcd;
90 return (req->rq_xid == lcd->lcd_last_xid ||
91 req->rq_xid == lcd->lcd_last_close_xid);
95 /* file data for open files on MDS */
96 struct mdt_file_data {
97 struct portals_handle mfd_handle; /* must be first */
98 struct list_head mfd_list; /* protected by med_open_lock */
99 __u64 mfd_xid; /* xid of the open request */
100 struct lustre_handle mfd_old_handle; /* old handle in replay case */
101 int mfd_mode; /* open mode provided by client */
102 struct mdt_object *mfd_object; /* point to opened object */
107 struct md_device mdt_md_dev;
108 struct ptlrpc_service *mdt_regular_service;
109 struct ptlrpc_service *mdt_readpage_service;
110 struct ptlrpc_service *mdt_xmds_service;
111 struct ptlrpc_service *mdt_setattr_service;
112 struct ptlrpc_service *mdt_mdsc_service;
113 struct ptlrpc_service *mdt_mdss_service;
114 struct ptlrpc_service *mdt_dtss_service;
115 struct ptlrpc_service *mdt_fld_service;
116 /* DLM name-space for meta-data locks maintained by this server */
117 struct ldlm_namespace *mdt_namespace;
118 /* ptlrpc handle for MDS->client connections (for lock ASTs). */
119 struct ptlrpc_client *mdt_ldlm_client;
120 /* underlying device */
121 struct md_device *mdt_child;
122 struct dt_device *mdt_bottom;
124 * Options bit-fields.
127 signed int mo_user_xattr :1,
134 /* mdt state flags */
135 __u32 mdt_fl_cfglog:1,
137 /* lock to pretect epoch and write count */
138 spinlock_t mdt_ioepoch_lock;
141 /* Transaction related stuff here */
142 spinlock_t mdt_transno_lock;
143 __u64 mdt_last_transno;
145 /* transaction callbacks */
146 struct dt_txn_callback mdt_txn_cb;
148 struct dt_object *mdt_last_rcvd;
150 /* these values should be updated from lov if necessary.
151 * or should be placed somewhere else. */
153 int mdt_max_cookiesize;
154 __u64 mdt_mount_count;
157 struct lr_server_data mdt_lsd;
158 spinlock_t mdt_client_bitmap_lock;
159 unsigned long mdt_client_bitmap[(LR_MAX_CLIENTS >> 3) / sizeof(long)];
161 struct upcall_cache *mdt_identity_cache;
164 rwlock_t mdt_sptlrpc_lock;
165 struct sptlrpc_rule_set mdt_sptlrpc_rset;
167 /* capability keys */
168 unsigned long mdt_capa_timeout;
170 struct dt_object *mdt_ck_obj;
171 unsigned long mdt_ck_timeout;
172 unsigned long mdt_ck_expiry;
173 cfs_timer_t mdt_ck_timer;
174 struct ptlrpc_thread mdt_ck_thread;
175 struct lustre_capa_key mdt_capa_keys[2];
176 unsigned int mdt_capa_conf:1;
178 cfs_proc_dir_entry_t *mdt_proc_entry;
179 struct lprocfs_stats *mdt_stats;
183 #define MDT_SERVICE_WATCHDOG_FACTOR (2000)
184 #define MDT_ROCOMPAT_SUPP (OBD_ROCOMPAT_LOVOBJID)
185 #define MDT_INCOMPAT_SUPP (OBD_INCOMPAT_MDT | OBD_INCOMPAT_COMMON_LR)
186 #define MDT_COS_DEFAULT (1)
189 struct lu_object_header mot_header;
190 struct md_object mot_obj;
197 struct mdt_lock_handle {
198 /* Lock type, reg for cross-ref use or pdo lock. */
202 struct lustre_handle mlh_reg_lh;
203 ldlm_mode_t mlh_reg_mode;
206 struct lustre_handle mlh_pdo_lh;
207 ldlm_mode_t mlh_pdo_mode;
208 unsigned int mlh_pdo_hash;
212 MDT_LH_PARENT, /* parent lockh */
213 MDT_LH_CHILD, /* child lockh */
214 MDT_LH_OLD, /* old lockh for rename */
215 MDT_LH_NEW, /* new lockh for rename */
216 MDT_LH_RMT, /* used for return lh to caller */
225 struct mdt_reint_record {
226 mdt_reint_t rr_opcode;
227 const struct lustre_handle *rr_handle;
228 const struct lu_fid *rr_fid1;
229 const struct lu_fid *rr_fid2;
234 const void *rr_eadata;
237 const struct llog_cookie *rr_logcookies;
241 enum mdt_reint_flag {
242 MRF_SETATTR_LOCKED = 1 << 0,
246 * Common data shared by mdt-level handlers. This is allocated per-thread to
247 * reduce stack consumption.
249 struct mdt_thread_info {
252 * The following members will be filled explicitly
253 * with specific data in mdt_thread_info_init().
255 /* TODO: move this into mdt_session_key(with LCT_SESSION), because
256 * request handling may migrate from one server thread to another.
258 struct req_capsule *mti_pill;
260 /* although we have export in req, there are cases when it is not
261 * available, e.g. closing files upon export destroy */
262 struct obd_export *mti_exp;
264 * A couple of lock handles.
266 struct mdt_lock_handle mti_lh[MDT_LH_NR];
268 struct mdt_device *mti_mdt;
269 const struct lu_env *mti_env;
272 * Additional fail id that can be set by handler. Passed to
273 * target_send_reply().
277 /* transaction number of current request */
283 * The following members will be filled expilictly
284 * with zero in mdt_thread_info_init(). These members may be used
291 struct md_attr mti_attr;
293 * Body for "habeo corpus" operations.
295 const struct mdt_body *mti_body;
297 * Host object. This is released at the end of mdt_handler().
299 struct mdt_object *mti_object;
301 * Lock request for "habeo clavis" operations.
303 const struct ldlm_request *mti_dlm_req;
305 __u32 mti_has_trans:1, /* has txn already? */
309 /* opdata for mdt_reint_open(), has the same as
310 * ldlm_reply:lock_policy_res1. mdt_update_last_rcvd() stores this
311 * value onto disk for recovery when mdt_trans_stop_cb() is called.
317 * The following members will be filled explicitly
318 * with zero in mdt_reint_unpack(), because they are only used
319 * by reint requests (including mdt_reint_open()).
323 * reint record. contains information for reint operations.
325 struct mdt_reint_record mti_rr;
328 * Operation specification (currently create and lookup)
330 struct md_op_spec mti_spec;
334 * The following members will _NOT_ be initialized at all.
335 * DO NOT expect them to contain any valid value.
336 * They should be initialized explicitly by the user themselves.
339 /* XXX: If something is in a union, make sure they do not conflict */
341 struct lu_fid mti_tmp_fid1;
342 struct lu_fid mti_tmp_fid2;
343 ldlm_policy_data_t mti_policy; /* for mdt_object_lock() and
344 * mdt_rename_lock() */
345 struct ldlm_res_id mti_res_id; /* for mdt_object_lock() and
348 struct obd_uuid uuid[2]; /* for mdt_seq_init_cli() */
349 char ns_name[48]; /* for mdt_init0() */
350 struct lustre_cfg_bufs bufs; /* for mdt_stack_fini() */
351 struct kstatfs ksfs; /* for mdt_statfs() */
353 /* for mdt_readpage() */
354 struct lu_rdpg mti_rdpg;
355 /* for mdt_sendpage() */
356 struct l_wait_info mti_wait_info;
360 /* IO epoch related stuff. */
361 struct mdt_epoch *mti_epoch;
362 __u64 mti_replayepoch;
364 /* server and client data buffers */
365 struct lr_server_data mti_lsd;
366 struct lsd_client_data mti_lcd;
368 struct txn_param mti_txn_param;
369 struct lu_buf mti_buf;
370 struct lustre_capa_key mti_capa_key;
372 /* Ops object filename */
373 struct lu_name mti_name;
374 struct md_attr mti_tmp_attr;
377 typedef void (*mdt_cb_t)(const struct mdt_device *mdt, __u64 transno,
378 void *data, int err);
379 struct mdt_commit_cb {
380 mdt_cb_t mdt_cb_func;
385 * Info allocated per-transaction.
387 #define MDT_MAX_COMMIT_CB 4
388 struct mdt_txn_info {
390 unsigned int txi_cb_count;
391 struct mdt_commit_cb txi_cb[MDT_MAX_COMMIT_CB];
394 extern struct lu_context_key mdt_txn_key;
396 static inline void mdt_trans_add_cb(const struct thandle *th,
397 mdt_cb_t cb_func, void *cb_data)
399 struct mdt_txn_info *txi;
401 txi = lu_context_key_get(&th->th_ctx, &mdt_txn_key);
402 LASSERT(txi->txi_cb_count < ARRAY_SIZE(txi->txi_cb));
404 /* add new callback */
405 txi->txi_cb[txi->txi_cb_count].mdt_cb_func = cb_func;
406 txi->txi_cb[txi->txi_cb_count].mdt_cb_data = cb_data;
410 static inline const struct md_device_operations *
411 mdt_child_ops(struct mdt_device * m)
413 LASSERT(m->mdt_child);
414 return m->mdt_child->md_ops;
417 static inline struct md_object *mdt_object_child(struct mdt_object *o)
420 return lu2md(lu_object_next(&o->mot_obj.mo_lu));
423 static inline struct ptlrpc_request *mdt_info_req(struct mdt_thread_info *info)
425 return info->mti_pill ? info->mti_pill->rc_req : NULL;
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(struct mdt_object *o)
457 return lu_object_fid(&o->mot_obj.mo_lu);
460 static inline struct lu_site *mdt_lu_site(const struct mdt_device *mdt)
462 return mdt->mdt_md_dev.md_lu_dev.ld_site;
465 static inline struct md_site *mdt_md_site(const struct mdt_device *mdt)
467 return lu_site2md(mdt_lu_site(mdt));
470 static inline void mdt_export_evict(struct obd_export *exp)
472 class_fail_export(exp);
473 class_export_put(exp);
476 int mdt_get_disposition(struct ldlm_reply *rep, int flag);
477 void mdt_set_disposition(struct mdt_thread_info *info,
478 struct ldlm_reply *rep, int flag);
479 void mdt_clear_disposition(struct mdt_thread_info *info,
480 struct ldlm_reply *rep, int flag);
482 void mdt_lock_pdo_init(struct mdt_lock_handle *lh,
483 ldlm_mode_t lm, const char *name,
486 void mdt_lock_reg_init(struct mdt_lock_handle *lh,
489 int mdt_lock_setup(struct mdt_thread_info *info,
490 struct mdt_object *o,
491 struct mdt_lock_handle *lh);
493 int mdt_object_lock(struct mdt_thread_info *,
495 struct mdt_lock_handle *,
498 void mdt_object_unlock(struct mdt_thread_info *,
500 struct mdt_lock_handle *,
503 struct mdt_object *mdt_object_find(const struct lu_env *,
505 const struct lu_fid *);
506 struct mdt_object *mdt_object_find_lock(struct mdt_thread_info *,
507 const struct lu_fid *,
508 struct mdt_lock_handle *,
510 void mdt_object_unlock_put(struct mdt_thread_info *,
512 struct mdt_lock_handle *,
515 int mdt_close_unpack(struct mdt_thread_info *info);
516 int mdt_reint_unpack(struct mdt_thread_info *info, __u32 op);
517 int mdt_reint_rec(struct mdt_thread_info *, struct mdt_lock_handle *);
518 void mdt_pack_size2body(struct mdt_thread_info *info,
519 struct mdt_object *o);
520 void mdt_pack_attr2body(struct mdt_thread_info *info, struct mdt_body *b,
521 const struct lu_attr *attr, const struct lu_fid *fid);
523 int mdt_getxattr(struct mdt_thread_info *info);
524 int mdt_reint_setxattr(struct mdt_thread_info *info,
525 struct mdt_lock_handle *lh);
527 void mdt_lock_handle_init(struct mdt_lock_handle *lh);
528 void mdt_lock_handle_fini(struct mdt_lock_handle *lh);
530 void mdt_reconstruct(struct mdt_thread_info *, struct mdt_lock_handle *);
531 void mdt_reconstruct_generic(struct mdt_thread_info *mti,
532 struct mdt_lock_handle *lhc);
534 extern void target_recovery_fini(struct obd_device *obd);
535 extern void target_recovery_init(struct obd_device *obd,
536 svc_handler_t handler);
537 int mdt_fs_setup(const struct lu_env *, struct mdt_device *,
538 struct obd_device *);
539 void mdt_fs_cleanup(const struct lu_env *, struct mdt_device *);
541 int mdt_client_del(const struct lu_env *env,
542 struct mdt_device *mdt);
543 int mdt_client_add(const struct lu_env *env,
544 struct mdt_device *mdt,
546 int mdt_client_new(const struct lu_env *env,
547 struct mdt_device *mdt);
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 *);
567 int mdt_epoch_open(struct mdt_thread_info *info, struct mdt_object *o);
568 void mdt_sizeonmds_enable(struct mdt_thread_info *info, struct mdt_object *mo);
569 int mdt_sizeonmds_enabled(struct mdt_object *mo);
570 int mdt_write_get(struct mdt_device *mdt, struct mdt_object *o);
571 int mdt_write_read(struct mdt_device *mdt, struct mdt_object *o);
572 struct mdt_file_data *mdt_mfd_new(void);
573 int mdt_mfd_close(struct mdt_thread_info *info, struct mdt_file_data *mfd);
574 void mdt_mfd_free(struct mdt_file_data *mfd);
575 int mdt_close(struct mdt_thread_info *info);
576 int mdt_attr_set(struct mdt_thread_info *info, struct mdt_object *mo,
578 int mdt_done_writing(struct mdt_thread_info *info);
579 void mdt_shrink_reply(struct mdt_thread_info *info);
580 int mdt_handle_last_unlink(struct mdt_thread_info *, struct mdt_object *,
581 const struct md_attr *);
582 void mdt_reconstruct_open(struct mdt_thread_info *, struct mdt_lock_handle *);
583 struct thandle* mdt_trans_start(const struct lu_env *env,
584 struct mdt_device *mdt, int credits);
585 void mdt_trans_stop(const struct lu_env *env,
586 struct mdt_device *mdt, struct thandle *th);
587 int mdt_record_write(const struct lu_env *env,
588 struct dt_object *dt, const struct lu_buf *buf,
589 loff_t *pos, struct thandle *th);
590 int mdt_record_read(const struct lu_env *env,
591 struct dt_object *dt, struct lu_buf *buf, loff_t *pos);
593 struct lu_buf *mdt_buf(const struct lu_env *env, void *area, ssize_t len);
594 const struct lu_buf *mdt_buf_const(const struct lu_env *env,
595 const void *area, ssize_t len);
597 void mdt_dump_lmm(int level, const struct lov_mds_md *lmm);
599 int mdt_check_ucred(struct mdt_thread_info *);
600 int mdt_init_ucred(struct mdt_thread_info *, struct mdt_body *);
601 int mdt_init_ucred_reint(struct mdt_thread_info *);
602 void mdt_exit_ucred(struct mdt_thread_info *);
605 int mdt_init_sec_level(struct mdt_thread_info *);
606 int mdt_init_idmap(struct mdt_thread_info *);
607 void mdt_cleanup_idmap(struct mdt_export_data *);
608 int mdt_handle_idmap(struct mdt_thread_info *);
609 int ptlrpc_user_desc_do_idmap(struct ptlrpc_request *,
610 struct ptlrpc_user_desc *);
611 void mdt_body_reverse_idmap(struct mdt_thread_info *,
613 int mdt_remote_perm_reverse_idmap(struct ptlrpc_request *,
614 struct mdt_remote_perm *);
615 int mdt_fix_attr_ucred(struct mdt_thread_info *, __u32);
617 static inline struct mdt_device *mdt_dev(struct lu_device *d)
619 // LASSERT(lu_device_is_mdt(d));
620 return container_of0(d, struct mdt_device, mdt_md_dev.md_lu_dev);
623 /* mdt/mdt_identity.c */
624 #define MDT_IDENTITY_UPCALL_PATH "/usr/sbin/l_getidentity"
626 extern struct upcall_cache_ops mdt_identity_upcall_cache_ops;
628 struct md_identity *mdt_identity_get(struct upcall_cache *, __u32);
630 void mdt_identity_put(struct upcall_cache *, struct md_identity *);
632 void mdt_flush_identity(struct upcall_cache *, int);
634 __u32 mdt_identity_get_perm(struct md_identity *, __u32, lnet_nid_t);
636 int mdt_pack_remote_perm(struct mdt_thread_info *, struct mdt_object *, void *);
638 extern struct lu_context_key mdt_thread_key;
639 /* debug issues helper starts here*/
640 static inline void mdt_fail_write(const struct lu_env *env,
641 struct dt_device *dd, int id)
643 if (OBD_FAIL_CHECK_ORSET(id, OBD_FAIL_ONCE)) {
644 CERROR(LUSTRE_MDT_NAME": obd_fail_loc=%x, fail write ops\n",
646 dd->dd_ops->dt_ro(env, dd);
647 /* We set FAIL_ONCE because we never "un-fail" a device */
651 static inline struct mdt_export_data *mdt_req2med(struct ptlrpc_request *req)
653 return &req->rq_export->exp_mdt_data;
656 typedef void (*mdt_reconstruct_t)(struct mdt_thread_info *mti,
657 struct mdt_lock_handle *lhc);
658 static inline int mdt_check_resent(struct mdt_thread_info *info,
659 mdt_reconstruct_t reconstruct,
660 struct mdt_lock_handle *lhc)
662 struct ptlrpc_request *req = mdt_info_req(info);
665 if (lustre_msg_get_flags(req->rq_reqmsg) & MSG_RESENT) {
666 if (req_xid_is_last(req)) {
667 reconstruct(info, lhc);
670 DEBUG_REQ(D_HA, req, "no reply for RESENT req (have "LPD64")",
671 req->rq_export->exp_mdt_data.med_lcd->lcd_last_xid);
676 struct md_ucred *mdt_ucred(const struct mdt_thread_info *info);
678 static inline int is_identity_get_disabled(struct upcall_cache *cache)
680 return cache ? (strcmp(cache->uc_upcall, "NONE") == 0) : 1;
683 int mdt_blocking_ast(struct ldlm_lock*, struct ldlm_lock_desc*, void*, int);
685 /* Issues dlm lock on passed @ns, @f stores it lock handle into @lh. */
686 static inline int mdt_fid_lock(struct ldlm_namespace *ns,
687 struct lustre_handle *lh,
689 ldlm_policy_data_t *policy,
690 const struct ldlm_res_id *res_id,
691 int flags, const __u64 *client_cookie)
698 rc = ldlm_cli_enqueue_local(ns, res_id, LDLM_IBITS, policy,
699 mode, &flags, mdt_blocking_ast,
701 NULL, NULL, 0, NULL, client_cookie, lh);
702 return rc == ELDLM_OK ? 0 : -EIO;
705 static inline void mdt_fid_unlock(struct lustre_handle *lh,
708 ldlm_lock_decref(lh, mode);
711 extern mdl_mode_t mdt_mdl_lock_modes[];
712 extern ldlm_mode_t mdt_dlm_lock_modes[];
714 static inline mdl_mode_t mdt_dlm_mode2mdl_mode(ldlm_mode_t mode)
716 LASSERT(IS_PO2(mode));
717 return mdt_mdl_lock_modes[mode];
720 static inline ldlm_mode_t mdt_mdl_mode2dlm_mode(mdl_mode_t mode)
722 LASSERT(IS_PO2(mode));
723 return mdt_dlm_lock_modes[mode];
726 static inline struct lu_name *mdt_name(const struct lu_env *env,
727 char *name, int namelen)
729 struct lu_name *lname;
730 struct mdt_thread_info *mti;
732 LASSERT(namelen > 0);
733 /* trailing '\0' in buffer */
734 LASSERT(name[namelen] == '\0');
736 mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key);
737 lname = &mti->mti_name;
738 lname->ln_name = name;
739 lname->ln_namelen = namelen;
743 static inline struct lu_name *mdt_name_copy(struct lu_name *tlname,
744 struct lu_name *slname)
749 tlname->ln_name = slname->ln_name;
750 tlname->ln_namelen = slname->ln_namelen;
754 void mdt_enable_cos(struct mdt_device *, int);
755 int mdt_cos_is_enabled(struct mdt_device *);
758 void lprocfs_mdt_init_vars(struct lprocfs_static_vars *lvars);
759 int mdt_procfs_init(struct mdt_device *mdt, const char *name);
760 int mdt_procfs_fini(struct mdt_device *mdt);
762 void mdt_time_start(const struct mdt_thread_info *info);
763 void mdt_time_end(const struct mdt_thread_info *info, int idx);
770 int mdt_ck_thread_start(struct mdt_device *mdt);
771 void mdt_ck_thread_stop(struct mdt_device *mdt);
772 void mdt_ck_timer_callback(unsigned long castmeharder);
773 int mdt_capa_keys_init(const struct lu_env *env, struct mdt_device *mdt);
775 static inline void mdt_set_capainfo(struct mdt_thread_info *info, int offset,
776 const struct lu_fid *fid,
777 struct lustre_capa *capa)
779 struct md_capainfo *ci;
781 LASSERT(offset >= 0 && offset <= MD_CAPAINFO_MAX);
782 if (!info->mti_mdt->mdt_opts.mo_mds_capa ||
783 !(info->mti_exp->exp_connect_flags & OBD_CONNECT_MDS_CAPA))
786 ci = md_capainfo(info->mti_env);
788 ci->mc_fid[offset] = fid;
789 ci->mc_capa[offset] = capa;
792 static inline void mdt_dump_capainfo(struct mdt_thread_info *info)
794 struct md_capainfo *ci = md_capainfo(info->mti_env);
799 for (i = 0; i < MD_CAPAINFO_MAX; i++) {
802 if (!ci->mc_capa[i]) {
803 CERROR("no capa for index %d "DFID"\n",
804 i, PFID(ci->mc_fid[i]));
807 if (ci->mc_capa[i] == BYPASS_CAPA) {
808 CERROR("bypass for index %d "DFID"\n",
809 i, PFID(ci->mc_fid[i]));
812 DEBUG_CAPA(D_ERROR, ci->mc_capa[i], "index %d", i);
816 static inline struct obd_device *mdt2obd_dev(const struct mdt_device *mdt)
818 return mdt->mdt_md_dev.md_lu_dev.ld_obd;
820 #endif /* __KERNEL__ */