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 md_device *mdt_child;
115 struct dt_device *mdt_bottom;
117 struct lu_target mdt_lut;
119 * Options bit-fields.
122 signed int mo_user_xattr :1,
129 /* mdt state flags */
130 unsigned long mdt_state;
131 /* lock to protect IOepoch */
132 cfs_spinlock_t mdt_ioepoch_lock;
135 /* transaction callbacks */
136 struct dt_txn_callback mdt_txn_cb;
138 /* these values should be updated from lov if necessary.
139 * or should be placed somewhere else. */
141 int mdt_max_cookiesize;
143 struct upcall_cache *mdt_identity_cache;
146 cfs_rwlock_t mdt_sptlrpc_lock;
147 struct sptlrpc_rule_set mdt_sptlrpc_rset;
149 /* capability keys */
150 unsigned long mdt_capa_timeout;
152 struct dt_object *mdt_ck_obj;
153 unsigned long mdt_ck_timeout;
154 unsigned long mdt_ck_expiry;
155 cfs_timer_t mdt_ck_timer;
156 struct ptlrpc_thread mdt_ck_thread;
157 struct lustre_capa_key mdt_capa_keys[2];
158 unsigned int mdt_capa_conf:1,
161 /* statfs optimization: we cache a bit */
162 struct obd_statfs mdt_osfs;
164 cfs_spinlock_t mdt_osfs_lock;
167 uid_t mdt_squash_uid;
168 gid_t mdt_squash_gid;
169 cfs_list_t mdt_nosquash_nids;
170 char *mdt_nosquash_str;
171 int mdt_nosquash_strlen;
172 cfs_rw_semaphore_t mdt_squash_sem;
174 cfs_proc_dir_entry_t *mdt_proc_entry;
175 struct lprocfs_stats *mdt_stats;
177 struct rename_stats mdt_rename_stats;
180 #define MDT_SERVICE_WATCHDOG_FACTOR (2)
181 #define MDT_ROCOMPAT_SUPP (OBD_ROCOMPAT_LOVOBJID)
182 #define MDT_INCOMPAT_SUPP (OBD_INCOMPAT_MDT | OBD_INCOMPAT_COMMON_LR | \
183 OBD_INCOMPAT_FID | OBD_INCOMPAT_IAM_DIR | \
184 OBD_INCOMPAT_LMM_VER | OBD_INCOMPAT_MULTI_OI)
185 #define MDT_COS_DEFAULT (0)
188 struct lu_object_header mot_header;
189 struct md_object mot_obj;
192 int mot_ioepoch_count;
194 /* Lock to protect object's IO epoch. */
195 cfs_mutex_t mot_ioepoch_mutex;
196 /* Lock to protect create_data */
197 cfs_mutex_t mot_lov_mutex;
200 enum mdt_object_flags {
201 /** SOM attributes are changed. */
202 MOF_SOM_CHANGE = (1 << 0),
204 * The SOM recovery state for mdt object.
205 * This state is an in-memory equivalent of an absent SOM EA, used
206 * instead of invalidating SOM EA while IOEpoch is still opened when
207 * a client eviction occurs or a client fails to obtain SOM attributes.
208 * It indicates that the last IOEpoch holder will need to obtain SOM
209 * attributes under [0;EOF] extent lock to flush all the client's
210 * cached of evicted from MDS clients (but not necessary evicted from
211 * OST) before taking ost attributes.
213 MOF_SOM_RECOV = (1 << 1),
214 /** File has been just created. */
215 MOF_SOM_CREATED = (1 << 2),
216 /** lov object has been created. */
217 MOF_LOV_CREATED = (1 << 3),
220 struct mdt_lock_handle {
221 /* Lock type, reg for cross-ref use or pdo lock. */
225 struct lustre_handle mlh_reg_lh;
226 ldlm_mode_t mlh_reg_mode;
229 struct lustre_handle mlh_pdo_lh;
230 ldlm_mode_t mlh_pdo_mode;
231 unsigned int mlh_pdo_hash;
235 MDT_LH_PARENT, /* parent lockh */
236 MDT_LH_CHILD, /* child lockh */
237 MDT_LH_OLD, /* old lockh for rename */
238 MDT_LH_NEW, /* new lockh for rename */
239 MDT_LH_RMT, /* used for return lh to caller */
248 struct mdt_reint_record {
249 mdt_reint_t rr_opcode;
250 const struct lustre_handle *rr_handle;
251 const struct lu_fid *rr_fid1;
252 const struct lu_fid *rr_fid2;
257 const void *rr_eadata;
260 const struct llog_cookie *rr_logcookies;
264 enum mdt_reint_flag {
265 MRF_OPEN_TRUNC = 1 << 0,
269 * Common data shared by mdt-level handlers. This is allocated per-thread to
270 * reduce stack consumption.
272 struct mdt_thread_info {
275 * The following members will be filled explicitly
276 * with specific data in mdt_thread_info_init().
278 /* TODO: move this into mdt_session_key(with LCT_SESSION), because
279 * request handling may migrate from one server thread to another.
281 struct req_capsule *mti_pill;
283 /* although we have export in req, there are cases when it is not
284 * available, e.g. closing files upon export destroy */
285 struct obd_export *mti_exp;
287 * A couple of lock handles.
289 struct mdt_lock_handle mti_lh[MDT_LH_NR];
291 struct mdt_device *mti_mdt;
292 const struct lu_env *mti_env;
295 * Additional fail id that can be set by handler. Passed to
296 * target_send_reply().
300 /* transaction number of current request */
306 * The following members will be filled expilictly
307 * with zero in mdt_thread_info_init(). These members may be used
314 struct md_attr mti_attr;
316 * Body for "habeo corpus" operations.
318 const struct mdt_body *mti_body;
320 * Host object. This is released at the end of mdt_handler().
322 struct mdt_object *mti_object;
324 * Lock request for "habeo clavis" operations.
326 const struct ldlm_request *mti_dlm_req;
328 __u32 mti_has_trans:1, /* has txn already? */
332 /* opdata for mdt_reint_open(), has the same as
333 * ldlm_reply:lock_policy_res1. mdt_update_last_rcvd() stores this
334 * value onto disk for recovery when mdt_trans_stop_cb() is called.
340 * The following members will be filled explicitly
341 * with zero in mdt_reint_unpack(), because they are only used
342 * by reint requests (including mdt_reint_open()).
346 * reint record. contains information for reint operations.
348 struct mdt_reint_record mti_rr;
350 /** md objects included in operation */
351 struct mdt_object *mti_mos;
352 __u64 mti_ver[PTLRPC_NUM_VERSIONS];
354 * Operation specification (currently create and lookup)
356 struct md_op_spec mti_spec;
360 * The following members will _NOT_ be initialized at all.
361 * DO NOT expect them to contain any valid value.
362 * They should be initialized explicitly by the user themselves.
365 /* XXX: If something is in a union, make sure they do not conflict */
367 struct lu_fid mti_tmp_fid1;
368 struct lu_fid mti_tmp_fid2;
369 ldlm_policy_data_t mti_policy; /* for mdt_object_lock() and
370 * mdt_rename_lock() */
371 struct ldlm_res_id mti_res_id; /* for mdt_object_lock() and
374 struct obd_uuid uuid[2]; /* for mdt_seq_init_cli() */
375 char ns_name[48]; /* for mdt_init0() */
376 struct lustre_cfg_bufs bufs; /* for mdt_stack_fini() */
377 struct obd_statfs osfs; /* for mdt_statfs() */
379 /* for mdt_readpage() */
380 struct lu_rdpg mti_rdpg;
381 /* for mdt_sendpage() */
382 struct l_wait_info mti_wait_info;
386 struct md_som_data data;
390 /* IO epoch related stuff. */
391 struct mdt_ioepoch *mti_ioepoch;
392 __u64 mti_replayepoch;
395 struct lu_buf mti_buf;
396 struct lustre_capa_key mti_capa_key;
398 /* Ops object filename */
399 struct lu_name mti_name;
402 static inline const struct md_device_operations *
403 mdt_child_ops(struct mdt_device * m)
405 LASSERT(m->mdt_child);
406 return m->mdt_child->md_ops;
409 static inline struct md_object *mdt_object_child(struct mdt_object *o)
412 return lu2md(lu_object_next(&o->mot_obj.mo_lu));
415 static inline struct ptlrpc_request *mdt_info_req(struct mdt_thread_info *info)
417 return info->mti_pill ? info->mti_pill->rc_req : NULL;
420 static inline int req_is_replay(struct ptlrpc_request *req)
422 LASSERT(req->rq_reqmsg);
423 return !!(lustre_msg_get_flags(req->rq_reqmsg) & MSG_REPLAY);
426 static inline __u64 mdt_conn_flags(struct mdt_thread_info *info)
428 LASSERT(info->mti_exp);
429 return info->mti_exp->exp_connect_flags;
432 static inline void mdt_object_get(const struct lu_env *env,
433 struct mdt_object *o)
436 lu_object_get(&o->mot_obj.mo_lu);
440 static inline void mdt_object_put(const struct lu_env *env,
441 struct mdt_object *o)
444 lu_object_put(env, &o->mot_obj.mo_lu);
448 static inline int mdt_object_exists(const struct mdt_object *o)
450 return lu_object_exists(&o->mot_obj.mo_lu);
453 static inline const struct lu_fid *mdt_object_fid(const struct mdt_object *o)
455 return lu_object_fid(&o->mot_obj.mo_lu);
458 static inline int mdt_object_obf(const struct mdt_object *o)
460 return lu_fid_eq(mdt_object_fid(o), &LU_OBF_FID);
463 static inline struct lu_site *mdt_lu_site(const struct mdt_device *mdt)
465 return mdt->mdt_md_dev.md_lu_dev.ld_site;
468 static inline struct md_site *mdt_md_site(const struct mdt_device *mdt)
470 return lu_site2md(mdt_lu_site(mdt));
473 static inline void mdt_export_evict(struct obd_export *exp)
475 class_fail_export(exp);
476 class_export_put(exp);
479 int mdt_get_disposition(struct ldlm_reply *rep, int flag);
480 void mdt_set_disposition(struct mdt_thread_info *info,
481 struct ldlm_reply *rep, int flag);
482 void mdt_clear_disposition(struct mdt_thread_info *info,
483 struct ldlm_reply *rep, int flag);
485 void mdt_lock_pdo_init(struct mdt_lock_handle *lh,
486 ldlm_mode_t lm, const char *name,
489 void mdt_lock_reg_init(struct mdt_lock_handle *lh,
492 int mdt_lock_setup(struct mdt_thread_info *info,
493 struct mdt_object *o,
494 struct mdt_lock_handle *lh);
496 int mdt_object_lock(struct mdt_thread_info *,
498 struct mdt_lock_handle *,
501 void mdt_object_unlock(struct mdt_thread_info *,
503 struct mdt_lock_handle *,
506 struct mdt_object *mdt_object_new(const struct lu_env *,
508 const struct lu_fid *);
509 struct mdt_object *mdt_object_find(const struct lu_env *,
511 const struct lu_fid *);
512 struct mdt_object *mdt_object_find_lock(struct mdt_thread_info *,
513 const struct lu_fid *,
514 struct mdt_lock_handle *,
516 void mdt_object_unlock_put(struct mdt_thread_info *,
518 struct mdt_lock_handle *,
521 void mdt_client_compatibility(struct mdt_thread_info *info);
523 int mdt_close_unpack(struct mdt_thread_info *info);
524 int mdt_reint_unpack(struct mdt_thread_info *info, __u32 op);
525 int mdt_reint_rec(struct mdt_thread_info *, struct mdt_lock_handle *);
526 void mdt_pack_attr2body(struct mdt_thread_info *info, struct mdt_body *b,
527 const struct lu_attr *attr, const struct lu_fid *fid);
529 int mdt_getxattr(struct mdt_thread_info *info);
530 int mdt_reint_setxattr(struct mdt_thread_info *info,
531 struct mdt_lock_handle *lh);
533 void mdt_lock_handle_init(struct mdt_lock_handle *lh);
534 void mdt_lock_handle_fini(struct mdt_lock_handle *lh);
536 void mdt_reconstruct(struct mdt_thread_info *, struct mdt_lock_handle *);
537 void mdt_reconstruct_generic(struct mdt_thread_info *mti,
538 struct mdt_lock_handle *lhc);
540 extern void target_recovery_fini(struct obd_device *obd);
541 extern void target_recovery_init(struct lu_target *lut,
542 svc_handler_t handler);
543 int mdt_fs_setup(const struct lu_env *, struct mdt_device *,
544 struct obd_device *, struct lustre_sb_info *lsi);
545 void mdt_fs_cleanup(const struct lu_env *, struct mdt_device *);
547 int mdt_export_stats_init(struct obd_device *obd,
548 struct obd_export *exp,
551 int mdt_pin(struct mdt_thread_info* info);
553 int mdt_lock_new_child(struct mdt_thread_info *info,
554 struct mdt_object *o,
555 struct mdt_lock_handle *child_lockh);
557 void mdt_mfd_set_mode(struct mdt_file_data *mfd,
560 int mdt_reint_open(struct mdt_thread_info *info,
561 struct mdt_lock_handle *lhc);
563 struct mdt_file_data *mdt_handle2mfd(struct mdt_thread_info *,
564 const struct lustre_handle *);
567 MDT_IOEPOCH_CLOSED = 0,
568 MDT_IOEPOCH_OPENED = 1,
569 MDT_IOEPOCH_GETATTR = 2,
577 int mdt_ioepoch_open(struct mdt_thread_info *info, struct mdt_object *o,
579 int mdt_object_is_som_enabled(struct mdt_object *mo);
580 int mdt_write_get(struct mdt_object *o);
581 void mdt_write_put(struct mdt_object *o);
582 int mdt_write_read(struct mdt_object *o);
583 struct mdt_file_data *mdt_mfd_new(void);
584 int mdt_mfd_close(struct mdt_thread_info *info, struct mdt_file_data *mfd);
585 void mdt_mfd_free(struct mdt_file_data *mfd);
586 int mdt_close(struct mdt_thread_info *info);
587 int mdt_attr_set(struct mdt_thread_info *info, struct mdt_object *mo,
588 struct md_attr *ma, int flags);
589 int mdt_done_writing(struct mdt_thread_info *info);
590 int mdt_fix_reply(struct mdt_thread_info *info);
591 int mdt_handle_last_unlink(struct mdt_thread_info *, struct mdt_object *,
592 const struct md_attr *);
593 void mdt_reconstruct_open(struct mdt_thread_info *, struct mdt_lock_handle *);
595 struct lu_buf *mdt_buf(const struct lu_env *env, void *area, ssize_t len);
596 const struct lu_buf *mdt_buf_const(const struct lu_env *env,
597 const void *area, ssize_t len);
599 void mdt_dump_lmm(int level, const struct lov_mds_md *lmm);
601 int mdt_check_ucred(struct mdt_thread_info *);
602 int mdt_init_ucred(struct mdt_thread_info *, struct mdt_body *);
603 int mdt_init_ucred_reint(struct mdt_thread_info *);
604 void mdt_exit_ucred(struct mdt_thread_info *);
605 int mdt_version_get_check(struct mdt_thread_info *, struct mdt_object *, int);
606 void mdt_version_get_save(struct mdt_thread_info *, struct mdt_object *, int);
607 int mdt_version_get_check_save(struct mdt_thread_info *, struct mdt_object *,
611 int mdt_init_sec_level(struct mdt_thread_info *);
612 int mdt_init_idmap(struct mdt_thread_info *);
613 void mdt_cleanup_idmap(struct mdt_export_data *);
614 int mdt_handle_idmap(struct mdt_thread_info *);
615 int ptlrpc_user_desc_do_idmap(struct ptlrpc_request *,
616 struct ptlrpc_user_desc *);
617 void mdt_body_reverse_idmap(struct mdt_thread_info *,
619 int mdt_remote_perm_reverse_idmap(struct ptlrpc_request *,
620 struct mdt_remote_perm *);
621 int mdt_fix_attr_ucred(struct mdt_thread_info *, __u32);
623 static inline struct mdt_device *mdt_dev(struct lu_device *d)
625 // LASSERT(lu_device_is_mdt(d));
626 return container_of0(d, struct mdt_device, mdt_md_dev.md_lu_dev);
629 static inline struct dt_object *mdt_obj2dt(struct mdt_object *mo)
631 struct lu_object *lo;
632 struct mdt_device *mdt = mdt_dev(mo->mot_obj.mo_lu.lo_dev);
634 lo = lu_object_locate(mo->mot_obj.mo_lu.lo_header,
635 mdt->mdt_bottom->dd_lu_dev.ld_type);
639 /* mdt/mdt_identity.c */
640 #define MDT_IDENTITY_UPCALL_PATH "/usr/sbin/l_getidentity"
642 extern struct upcall_cache_ops mdt_identity_upcall_cache_ops;
644 struct md_identity *mdt_identity_get(struct upcall_cache *, __u32);
646 void mdt_identity_put(struct upcall_cache *, struct md_identity *);
648 void mdt_flush_identity(struct upcall_cache *, int);
650 __u32 mdt_identity_get_perm(struct md_identity *, __u32, lnet_nid_t);
652 int mdt_pack_remote_perm(struct mdt_thread_info *, struct mdt_object *, void *);
654 extern struct lu_context_key mdt_thread_key;
655 /* debug issues helper starts here*/
656 static inline int mdt_fail_write(const struct lu_env *env,
657 struct dt_device *dd, int id)
659 if (OBD_FAIL_CHECK_ORSET(id, OBD_FAIL_ONCE)) {
660 CERROR(LUSTRE_MDT_NAME": cfs_fail_loc=%x, fail write ops\n",
662 return dd->dd_ops->dt_ro(env, dd);
663 /* We set FAIL_ONCE because we never "un-fail" a device */
669 static inline struct mdt_export_data *mdt_req2med(struct ptlrpc_request *req)
671 return &req->rq_export->exp_mdt_data;
674 typedef void (*mdt_reconstruct_t)(struct mdt_thread_info *mti,
675 struct mdt_lock_handle *lhc);
676 static inline int mdt_check_resent(struct mdt_thread_info *info,
677 mdt_reconstruct_t reconstruct,
678 struct mdt_lock_handle *lhc)
680 struct ptlrpc_request *req = mdt_info_req(info);
683 if (lustre_msg_get_flags(req->rq_reqmsg) & MSG_RESENT) {
684 if (req_xid_is_last(req)) {
685 reconstruct(info, lhc);
688 DEBUG_REQ(D_HA, req, "no reply for RESENT req (have "LPD64")",
689 req->rq_export->exp_target_data.ted_lcd->lcd_last_xid);
694 struct md_ucred *mdt_ucred(const struct mdt_thread_info *info);
696 static inline int is_identity_get_disabled(struct upcall_cache *cache)
698 return cache ? (strcmp(cache->uc_upcall, "NONE") == 0) : 1;
701 int mdt_blocking_ast(struct ldlm_lock*, struct ldlm_lock_desc*, void*, int);
703 /* Issues dlm lock on passed @ns, @f stores it lock handle into @lh. */
704 static inline int mdt_fid_lock(struct ldlm_namespace *ns,
705 struct lustre_handle *lh,
707 ldlm_policy_data_t *policy,
708 const struct ldlm_res_id *res_id,
709 int flags, const __u64 *client_cookie)
716 rc = ldlm_cli_enqueue_local(ns, res_id, LDLM_IBITS, policy,
717 mode, &flags, mdt_blocking_ast,
718 ldlm_completion_ast, NULL, NULL, 0,
720 return rc == ELDLM_OK ? 0 : -EIO;
723 static inline void mdt_fid_unlock(struct lustre_handle *lh,
726 ldlm_lock_decref(lh, mode);
729 extern mdl_mode_t mdt_mdl_lock_modes[];
730 extern ldlm_mode_t mdt_dlm_lock_modes[];
732 static inline mdl_mode_t mdt_dlm_mode2mdl_mode(ldlm_mode_t mode)
734 LASSERT(IS_PO2(mode));
735 return mdt_mdl_lock_modes[mode];
738 static inline ldlm_mode_t mdt_mdl_mode2dlm_mode(mdl_mode_t mode)
740 LASSERT(IS_PO2(mode));
741 return mdt_dlm_lock_modes[mode];
744 static inline struct lu_name *mdt_name(const struct lu_env *env,
745 char *name, int namelen)
747 struct lu_name *lname;
748 struct mdt_thread_info *mti;
750 LASSERT(namelen > 0);
751 /* trailing '\0' in buffer */
752 LASSERT(name[namelen] == '\0');
754 mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key);
755 lname = &mti->mti_name;
756 lname->ln_name = name;
757 lname->ln_namelen = namelen;
761 static inline struct lu_name *mdt_name_copy(struct lu_name *tlname,
762 struct lu_name *slname)
767 tlname->ln_name = slname->ln_name;
768 tlname->ln_namelen = slname->ln_namelen;
772 void mdt_enable_cos(struct mdt_device *, int);
773 int mdt_cos_is_enabled(struct mdt_device *);
774 int mdt_hsm_copytool_send(struct obd_export *exp);
792 LPROC_MDT_SAMEDIR_RENAME,
793 LPROC_MDT_CROSSDIR_RENAME,
796 void mdt_counter_incr(struct ptlrpc_request *req, int opcode);
797 void mdt_stats_counter_init(struct lprocfs_stats *stats);
798 void lprocfs_mdt_init_vars(struct lprocfs_static_vars *lvars);
799 int mdt_procfs_init(struct mdt_device *mdt, const char *name);
800 int mdt_procfs_fini(struct mdt_device *mdt);
801 void mdt_rename_counter_tally(struct mdt_thread_info *info,
802 struct mdt_device *mdt,
803 struct ptlrpc_request *req,
804 struct mdt_object *src, struct mdt_object *tgt);
806 void mdt_time_start(const struct mdt_thread_info *info);
807 void mdt_time_end(const struct mdt_thread_info *info, int idx);
810 int mdt_ck_thread_start(struct mdt_device *mdt);
811 void mdt_ck_thread_stop(struct mdt_device *mdt);
812 void mdt_ck_timer_callback(unsigned long castmeharder);
813 int mdt_capa_keys_init(const struct lu_env *env, struct mdt_device *mdt);
815 static inline void mdt_set_capainfo(struct mdt_thread_info *info, int offset,
816 const struct lu_fid *fid,
817 struct lustre_capa *capa)
819 struct md_capainfo *ci;
821 LASSERT(offset >= 0 && offset <= MD_CAPAINFO_MAX);
822 if (!info->mti_mdt->mdt_opts.mo_mds_capa ||
823 !(info->mti_exp->exp_connect_flags & OBD_CONNECT_MDS_CAPA))
826 ci = md_capainfo(info->mti_env);
828 ci->mc_fid[offset] = *fid;
829 ci->mc_capa[offset] = capa;
832 static inline void mdt_dump_capainfo(struct mdt_thread_info *info)
834 struct md_capainfo *ci = md_capainfo(info->mti_env);
839 for (i = 0; i < MD_CAPAINFO_MAX; i++) {
840 if (!ci->mc_capa[i]) {
841 CERROR("no capa for index %d "DFID"\n",
842 i, PFID(&ci->mc_fid[i]));
845 if (ci->mc_capa[i] == BYPASS_CAPA) {
846 CERROR("bypass for index %d "DFID"\n",
847 i, PFID(&ci->mc_fid[i]));
850 DEBUG_CAPA(D_ERROR, ci->mc_capa[i], "index %d", i);
854 static inline struct obd_device *mdt2obd_dev(const struct mdt_device *mdt)
856 return mdt->mdt_md_dev.md_lu_dev.ld_obd;
858 #endif /* __KERNEL__ */