1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * lustre/mdt/mdt_internal.h
5 * Lustre Metadata Target (mdt) request handler
7 * Copyright (c) 2006 Cluster File Systems, Inc.
8 * Author: Peter Braam <braam@clusterfs.com>
9 * Author: Andreas Dilger <adilger@clusterfs.com>
10 * Author: Phil Schwan <phil@clusterfs.com>
11 * Author: Mike Shaver <shaver@clusterfs.com>
12 * Author: Nikita Danilov <nikita@clusterfs.com>
13 * Author: Huang Hua <huanghua@clusterfs.com>
15 * This file is part of the Lustre file system, http://www.lustre.org
16 * Lustre is a trademark of Cluster File Systems, Inc.
18 * You may have signed or agreed to another license before downloading
19 * this software. If so, you are bound by the terms and conditions
20 * of that agreement, and the following does not apply to you. See the
21 * LICENSE file included with this distribution for more information.
23 * If you did not agree to a different license, then this copy of Lustre
24 * is open source software; you can redistribute it and/or modify it
25 * under the terms of version 2 of the GNU General Public License as
26 * published by the Free Software Foundation.
28 * In either case, Lustre is distributed in the hope that it will be
29 * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
30 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
31 * license text for more details.
34 #ifndef _MDT_INTERNAL_H
35 #define _MDT_INTERNAL_H
37 #if defined(__KERNEL__)
40 * struct ptlrpc_client
42 #include <lustre_net.h>
45 * struct obd_connect_data
46 * struct lustre_handle
48 #include <lustre/lustre_idl.h>
49 #include <md_object.h>
50 #include <dt_object.h>
51 #include <lustre_fid.h>
52 #include <lustre_fld.h>
53 #include <lustre_req_layout.h>
54 /* LR_CLIENT_SIZE, etc. */
55 #include <lustre_disk.h>
56 #include <lustre_sec.h>
58 #include <lustre_idmap.h>
59 #include <lustre_eacl.h>
61 static inline __u64 lcd_last_transno(struct lsd_client_data *lcd)
63 return max(lcd->lcd_last_transno, lcd->lcd_last_close_transno);
66 static inline __u64 lcd_last_xid(struct lsd_client_data *lcd)
68 return max(lcd->lcd_last_xid, lcd->lcd_last_close_xid);
71 /* check if request's xid is equal to last one or not*/
72 static inline int req_xid_is_last(struct ptlrpc_request *req)
74 struct lsd_client_data *lcd = req->rq_export->exp_mdt_data.med_lcd;
75 return (req->rq_xid == lcd->lcd_last_xid ||
76 req->rq_xid == lcd->lcd_last_close_xid);
80 /* file data for open files on MDS */
81 struct mdt_file_data {
82 struct portals_handle mfd_handle; /* must be first */
83 struct list_head mfd_list; /* protected by med_open_lock */
84 __u64 mfd_xid; /* xid of the open request */
85 struct lustre_handle mfd_old_handle; /* old handle in replay case */
86 int mfd_mode; /* open mode provided by client */
87 struct mdt_object *mfd_object; /* point to opened object */
92 struct md_device mdt_md_dev;
93 struct ptlrpc_service *mdt_regular_service;
94 struct ptlrpc_service *mdt_readpage_service;
95 struct ptlrpc_service *mdt_xmds_service;
96 struct ptlrpc_service *mdt_setattr_service;
97 struct ptlrpc_service *mdt_mdsc_service;
98 struct ptlrpc_service *mdt_mdss_service;
99 struct ptlrpc_service *mdt_dtss_service;
100 struct ptlrpc_service *mdt_fld_service;
101 /* DLM name-space for meta-data locks maintained by this server */
102 struct ldlm_namespace *mdt_namespace;
103 /* ptlrpc handle for MDS->client connections (for lock ASTs). */
104 struct ptlrpc_client *mdt_ldlm_client;
105 /* underlying device */
106 struct md_device *mdt_child;
107 struct dt_device *mdt_bottom;
109 * Options bit-fields.
112 signed int mo_user_xattr :1,
118 /* mdt state flags */
119 __u32 mdt_fl_cfglog:1,
121 /* lock to pretect epoch and write count */
122 spinlock_t mdt_ioepoch_lock;
125 /* Transaction related stuff here */
126 spinlock_t mdt_transno_lock;
127 __u64 mdt_last_transno;
129 /* transaction callbacks */
130 struct dt_txn_callback mdt_txn_cb;
132 struct dt_object *mdt_last_rcvd;
134 /* these values should be updated from lov if necessary.
135 * or should be placed somewhere else. */
137 int mdt_max_cookiesize;
138 __u64 mdt_mount_count;
141 struct lr_server_data mdt_lsd;
142 spinlock_t mdt_client_bitmap_lock;
143 unsigned long mdt_client_bitmap[(LR_MAX_CLIENTS >> 3) / sizeof(long)];
145 struct upcall_cache *mdt_identity_cache;
148 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;
162 cfs_proc_dir_entry_t *mdt_proc_entry;
163 struct lprocfs_stats *mdt_stats;
166 #define MDT_SERVICE_WATCHDOG_FACTOR (2000)
167 #define MDT_ROCOMPAT_SUPP (OBD_ROCOMPAT_LOVOBJID)
168 #define MDT_INCOMPAT_SUPP (OBD_INCOMPAT_MDT | OBD_INCOMPAT_COMMON_LR)
171 struct lu_object_header mot_header;
172 struct md_object mot_obj;
179 struct mdt_lock_handle {
180 /* Lock type, reg for cross-ref use or pdo lock. */
184 struct lustre_handle mlh_reg_lh;
185 ldlm_mode_t mlh_reg_mode;
188 struct lustre_handle mlh_pdo_lh;
189 ldlm_mode_t mlh_pdo_mode;
190 unsigned int mlh_pdo_hash;
194 MDT_LH_PARENT, /* parent lockh */
195 MDT_LH_CHILD, /* child lockh */
196 MDT_LH_OLD, /* old lockh for rename */
197 MDT_LH_NEW, /* new lockh for rename */
198 MDT_LH_RMT, /* used for return lh to caller */
207 struct mdt_reint_record {
208 mdt_reint_t rr_opcode;
209 const struct lustre_handle *rr_handle;
210 const struct lu_fid *rr_fid1;
211 const struct lu_fid *rr_fid2;
216 const void *rr_eadata;
219 const struct llog_cookie *rr_logcookies;
223 enum mdt_reint_flag {
224 MRF_SETATTR_LOCKED = 1 << 0,
228 * Common data shared by mdt-level handlers. This is allocated per-thread to
229 * reduce stack consumption.
231 struct mdt_thread_info {
234 * The following members will be filled explicitly
235 * with specific data in mdt_thread_info_init().
237 /* TODO: move this into mdt_session_key(with LCT_SESSION), because
238 * request handling may migrate from one server thread to another.
240 struct req_capsule *mti_pill;
242 /* although we have export in req, there are cases when it is not
243 * available, e.g. closing files upon export destroy */
244 struct obd_export *mti_exp;
246 * A couple of lock handles.
248 struct mdt_lock_handle mti_lh[MDT_LH_NR];
250 struct mdt_device *mti_mdt;
251 const struct lu_env *mti_env;
254 * Additional fail id that can be set by handler. Passed to
255 * target_send_reply().
259 /* transaction number of current request */
265 * The following members will be filled expilictly
266 * with zero in mdt_thread_info_init(). These members may be used
273 struct md_attr mti_attr;
275 * Body for "habeo corpus" operations.
277 const struct mdt_body *mti_body;
279 * Host object. This is released at the end of mdt_handler().
281 struct mdt_object *mti_object;
283 * Lock request for "habeo clavis" operations.
285 const struct ldlm_request *mti_dlm_req;
287 __u32 mti_has_trans:1, /* has txn already? */
291 /* opdata for mdt_reint_open(), has the same as
292 * ldlm_reply:lock_policy_res1. mdt_update_last_rcvd() stores this
293 * value onto disk for recovery when mdt_trans_stop_cb() is called.
299 * The following members will be filled expilictly
300 * with zero in mdt_reint_unpack(), because they are only used
301 * by reint requests (including mdt_reint_open()).
305 * reint record. contains information for reint operations.
307 struct mdt_reint_record mti_rr;
310 * Operation specification (currently create and lookup)
312 struct md_op_spec mti_spec;
316 * The following members will _NOT_ be initialized at all.
317 * DO NOT expect them to contain any valid value.
318 * They should be initialized explicitly by the user themselves.
321 /* XXX: If something is in a union, make sure they do not conflict */
323 struct lu_fid mti_tmp_fid1;
324 struct lu_fid mti_tmp_fid2;
325 ldlm_policy_data_t mti_policy; /* for mdt_object_lock() and
326 * mdt_rename_lock() */
327 struct ldlm_res_id mti_res_id; /* for mdt_object_lock() and
330 struct obd_uuid uuid[2]; /* for mdt_seq_init_cli() */
331 char ns_name[48]; /* for mdt_init0() */
332 struct lustre_cfg_bufs bufs; /* for mdt_stack_fini() */
333 struct kstatfs ksfs; /* for mdt_statfs() */
335 /* for mdt_readpage() */
336 struct lu_rdpg mti_rdpg;
337 /* for mdt_sendpage() */
338 struct l_wait_info mti_wait_info;
342 /* IO epoch related stuff. */
343 struct mdt_epoch *mti_epoch;
344 __u64 mti_replayepoch;
346 /* server and client data buffers */
347 struct lr_server_data mti_lsd;
348 struct lsd_client_data mti_lcd;
350 struct txn_param mti_txn_param;
351 struct lu_buf mti_buf;
352 struct lustre_capa_key mti_capa_key;
354 /* Ops object filename */
355 struct lu_name mti_name;
358 typedef void (*mdt_cb_t)(const struct mdt_device *mdt, __u64 transno,
359 void *data, int err);
360 struct mdt_commit_cb {
361 mdt_cb_t mdt_cb_func;
366 * Info allocated per-transaction.
368 #define MDT_MAX_COMMIT_CB 4
369 struct mdt_txn_info {
371 unsigned int txi_cb_count;
372 struct mdt_commit_cb txi_cb[MDT_MAX_COMMIT_CB];
375 extern struct lu_context_key mdt_txn_key;
377 static inline void mdt_trans_add_cb(const struct thandle *th,
378 mdt_cb_t cb_func, void *cb_data)
380 struct mdt_txn_info *txi;
382 txi = lu_context_key_get(&th->th_ctx, &mdt_txn_key);
383 LASSERT(txi->txi_cb_count < ARRAY_SIZE(txi->txi_cb));
385 /* add new callback */
386 txi->txi_cb[txi->txi_cb_count].mdt_cb_func = cb_func;
387 txi->txi_cb[txi->txi_cb_count].mdt_cb_data = cb_data;
391 static inline struct md_device_operations *mdt_child_ops(struct mdt_device * m)
393 LASSERT(m->mdt_child);
394 return m->mdt_child->md_ops;
397 static inline struct md_object *mdt_object_child(struct mdt_object *o)
400 return lu2md(lu_object_next(&o->mot_obj.mo_lu));
403 static inline struct ptlrpc_request *mdt_info_req(struct mdt_thread_info *info)
405 return info->mti_pill ? info->mti_pill->rc_req : NULL;
408 static inline __u64 mdt_conn_flags(struct mdt_thread_info *info)
410 LASSERT(info->mti_exp);
411 return info->mti_exp->exp_connect_flags;
414 static inline void mdt_object_get(const struct lu_env *env,
415 struct mdt_object *o)
418 lu_object_get(&o->mot_obj.mo_lu);
422 static inline void mdt_object_put(const struct lu_env *env,
423 struct mdt_object *o)
426 lu_object_put(env, &o->mot_obj.mo_lu);
430 static inline int mdt_object_exists(const struct mdt_object *o)
432 return lu_object_exists(&o->mot_obj.mo_lu);
435 static inline const struct lu_fid *mdt_object_fid(struct mdt_object *o)
437 return lu_object_fid(&o->mot_obj.mo_lu);
441 static inline void mdt_export_evict(struct obd_export *exp)
443 class_fail_export(exp);
444 class_export_put(exp);
447 int mdt_get_disposition(struct ldlm_reply *rep, int flag);
448 void mdt_set_disposition(struct mdt_thread_info *info,
449 struct ldlm_reply *rep, int flag);
450 void mdt_clear_disposition(struct mdt_thread_info *info,
451 struct ldlm_reply *rep, int flag);
453 void mdt_lock_pdo_init(struct mdt_lock_handle *lh,
454 ldlm_mode_t lm, const char *name,
457 void mdt_lock_reg_init(struct mdt_lock_handle *lh,
460 int mdt_lock_setup(struct mdt_thread_info *info,
461 struct mdt_object *o,
462 struct mdt_lock_handle *lh);
464 int mdt_object_lock(struct mdt_thread_info *,
466 struct mdt_lock_handle *,
469 void mdt_object_unlock(struct mdt_thread_info *,
471 struct mdt_lock_handle *,
474 struct mdt_object *mdt_object_find(const struct lu_env *,
476 const struct lu_fid *);
477 struct mdt_object *mdt_object_find_lock(struct mdt_thread_info *,
478 const struct lu_fid *,
479 struct mdt_lock_handle *,
481 void mdt_object_unlock_put(struct mdt_thread_info *,
483 struct mdt_lock_handle *,
486 int mdt_close_unpack(struct mdt_thread_info *info);
487 int mdt_reint_unpack(struct mdt_thread_info *info, __u32 op);
488 int mdt_reint_rec(struct mdt_thread_info *, struct mdt_lock_handle *);
489 void mdt_pack_size2body(struct mdt_thread_info *info,
490 struct mdt_object *o);
491 void mdt_pack_attr2body(struct mdt_thread_info *info, struct mdt_body *b,
492 const struct lu_attr *attr, const struct lu_fid *fid);
494 int mdt_getxattr(struct mdt_thread_info *info);
495 int mdt_reint_setxattr(struct mdt_thread_info *info,
496 struct mdt_lock_handle *lh);
498 void mdt_lock_handle_init(struct mdt_lock_handle *lh);
499 void mdt_lock_handle_fini(struct mdt_lock_handle *lh);
501 void mdt_reconstruct(struct mdt_thread_info *, struct mdt_lock_handle *);
502 void mdt_reconstruct_generic(struct mdt_thread_info *mti,
503 struct mdt_lock_handle *lhc);
505 extern void target_recovery_fini(struct obd_device *obd);
506 extern void target_recovery_init(struct obd_device *obd,
507 svc_handler_t handler);
508 int mdt_fs_setup(const struct lu_env *, struct mdt_device *,
509 struct obd_device *);
510 void mdt_fs_cleanup(const struct lu_env *, struct mdt_device *);
512 int mdt_client_del(const struct lu_env *env,
513 struct mdt_device *mdt);
514 int mdt_client_add(const struct lu_env *env,
515 struct mdt_device *mdt,
517 int mdt_client_new(const struct lu_env *env,
518 struct mdt_device *mdt);
520 int mdt_pin(struct mdt_thread_info* info);
522 int mdt_lock_new_child(struct mdt_thread_info *info,
523 struct mdt_object *o,
524 struct mdt_lock_handle *child_lockh);
526 void mdt_mfd_set_mode(struct mdt_file_data *mfd,
529 int mdt_reint_open(struct mdt_thread_info *info,
530 struct mdt_lock_handle *lhc);
532 struct mdt_file_data *mdt_handle2mfd(struct mdt_thread_info *,
533 const struct lustre_handle *);
534 int mdt_epoch_open(struct mdt_thread_info *info, struct mdt_object *o);
535 void mdt_sizeonmds_enable(struct mdt_thread_info *info, struct mdt_object *mo);
536 int mdt_sizeonmds_enabled(struct mdt_object *mo);
537 int mdt_write_get(struct mdt_device *mdt, struct mdt_object *o);
538 int mdt_write_read(struct mdt_device *mdt, struct mdt_object *o);
539 struct mdt_file_data *mdt_mfd_new(void);
540 int mdt_mfd_close(struct mdt_thread_info *info, struct mdt_file_data *mfd);
541 void mdt_mfd_free(struct mdt_file_data *mfd);
542 int mdt_close(struct mdt_thread_info *info);
543 int mdt_attr_set(struct mdt_thread_info *info, struct mdt_object *mo,
545 int mdt_done_writing(struct mdt_thread_info *info);
546 void mdt_shrink_reply(struct mdt_thread_info *info);
547 int mdt_handle_last_unlink(struct mdt_thread_info *, struct mdt_object *,
548 const struct md_attr *);
549 void mdt_reconstruct_open(struct mdt_thread_info *, struct mdt_lock_handle *);
550 struct thandle* mdt_trans_start(const struct lu_env *env,
551 struct mdt_device *mdt, int credits);
552 void mdt_trans_stop(const struct lu_env *env,
553 struct mdt_device *mdt, struct thandle *th);
554 int mdt_record_write(const struct lu_env *env,
555 struct dt_object *dt, const struct lu_buf *buf,
556 loff_t *pos, struct thandle *th);
557 int mdt_record_read(const struct lu_env *env,
558 struct dt_object *dt, struct lu_buf *buf, loff_t *pos);
560 struct lu_buf *mdt_buf(const struct lu_env *env, void *area, ssize_t len);
561 const struct lu_buf *mdt_buf_const(const struct lu_env *env,
562 const void *area, ssize_t len);
564 void mdt_dump_lmm(int level, const struct lov_mds_md *lmm);
566 int mdt_check_ucred(struct mdt_thread_info *);
567 int mdt_init_ucred(struct mdt_thread_info *, struct mdt_body *);
568 int mdt_init_ucred_reint(struct mdt_thread_info *);
569 void mdt_exit_ucred(struct mdt_thread_info *);
572 int mdt_init_idmap(struct mdt_thread_info *);
574 void mdt_cleanup_idmap(struct mdt_export_data *);
576 int mdt_handle_idmap(struct mdt_thread_info *);
578 int ptlrpc_user_desc_do_idmap(struct ptlrpc_request *,
579 struct ptlrpc_user_desc *);
581 void mdt_body_reverse_idmap(struct mdt_thread_info *,
584 int mdt_remote_perm_reverse_idmap(struct ptlrpc_request *,
585 struct mdt_remote_perm *);
587 int mdt_fix_attr_ucred(struct mdt_thread_info *, __u32);
589 static inline struct mdt_device *mdt_dev(struct lu_device *d)
591 // LASSERT(lu_device_is_mdt(d));
592 return container_of0(d, struct mdt_device, mdt_md_dev.md_lu_dev);
595 /* mdt/mdt_identity.c */
596 #define MDT_IDENTITY_UPCALL_PATH "/usr/sbin/l_getidentity"
598 extern struct upcall_cache_ops mdt_identity_upcall_cache_ops;
600 struct md_identity *mdt_identity_get(struct upcall_cache *, __u32);
602 void mdt_identity_put(struct upcall_cache *, struct md_identity *);
604 void mdt_flush_identity(struct upcall_cache *, int);
606 __u32 mdt_identity_get_perm(struct md_identity *, __u32, lnet_nid_t);
608 int mdt_pack_remote_perm(struct mdt_thread_info *, struct mdt_object *, void *);
610 extern struct lu_context_key mdt_thread_key;
611 /* debug issues helper starts here*/
612 static inline void mdt_fail_write(const struct lu_env *env,
613 struct dt_device *dd, int id)
615 if (OBD_FAIL_CHECK_ORSET(id, OBD_FAIL_ONCE)) {
616 CERROR(LUSTRE_MDT_NAME": obd_fail_loc=%x, fail write ops\n",
618 dd->dd_ops->dt_ro(env, dd);
619 /* We set FAIL_ONCE because we never "un-fail" a device */
623 static inline struct mdt_export_data *mdt_req2med(struct ptlrpc_request *req)
625 return &req->rq_export->exp_mdt_data;
628 typedef void (*mdt_reconstruct_t)(struct mdt_thread_info *mti,
629 struct mdt_lock_handle *lhc);
630 static inline int mdt_check_resent(struct mdt_thread_info *info,
631 mdt_reconstruct_t reconstruct,
632 struct mdt_lock_handle *lhc)
634 struct ptlrpc_request *req = mdt_info_req(info);
637 if (lustre_msg_get_flags(req->rq_reqmsg) & MSG_RESENT) {
638 if (req_xid_is_last(req)) {
639 reconstruct(info, lhc);
642 DEBUG_REQ(D_HA, req, "no reply for RESENT req (have "LPD64")",
643 req->rq_export->exp_mdt_data.med_lcd->lcd_last_xid);
648 struct md_ucred *mdt_ucred(const struct mdt_thread_info *info);
650 static inline int is_identity_get_disabled(struct upcall_cache *cache)
652 return cache ? (strcmp(cache->uc_upcall, "NONE") == 0) : 1;
655 /* Issues dlm lock on passed @ns, @f stores it lock handle into @lh. */
656 static inline int mdt_fid_lock(struct ldlm_namespace *ns,
657 struct lustre_handle *lh,
659 ldlm_policy_data_t *policy,
660 const struct ldlm_res_id *res_id,
668 rc = ldlm_cli_enqueue_local(ns, res_id, LDLM_IBITS, policy,
669 mode, &flags, ldlm_blocking_ast,
670 ldlm_completion_ast, NULL, NULL,
672 return rc == ELDLM_OK ? 0 : -EIO;
675 static inline void mdt_fid_unlock(struct lustre_handle *lh,
678 ldlm_lock_decref(lh, mode);
681 extern mdl_mode_t mdt_mdl_lock_modes[];
682 extern ldlm_mode_t mdt_dlm_lock_modes[];
684 static inline mdl_mode_t mdt_dlm_mode2mdl_mode(ldlm_mode_t mode)
686 LASSERT(IS_PO2(mode));
687 return mdt_mdl_lock_modes[mode];
690 static inline ldlm_mode_t mdt_mdl_mode2dlm_mode(mdl_mode_t mode)
692 LASSERT(IS_PO2(mode));
693 return mdt_dlm_lock_modes[mode];
696 static inline struct lu_name *mdt_name(const struct lu_env *env,
697 char *name, int namelen)
699 struct lu_name *lname;
700 struct mdt_thread_info *mti;
702 LASSERT(namelen > 0);
703 /* trailing '\0' in buffer */
704 LASSERT(name[namelen] == '\0');
706 mti = lu_context_key_get(&env->le_ctx, &mdt_thread_key);
707 lname = &mti->mti_name;
708 lname->ln_name = name;
709 lname->ln_namelen = namelen;
713 static inline struct lu_name *mdt_name_copy(struct lu_name *tlname,
714 struct lu_name *slname)
719 tlname->ln_name = slname->ln_name;
720 tlname->ln_namelen = slname->ln_namelen;
725 void lprocfs_mdt_init_vars(struct lprocfs_static_vars *lvars);
726 int mdt_procfs_init(struct mdt_device *mdt, const char *name);
727 int mdt_procfs_fini(struct mdt_device *mdt);
729 void mdt_time_start(const struct mdt_thread_info *info);
730 void mdt_time_end(const struct mdt_thread_info *info, int idx);
737 int mdt_ck_thread_start(struct mdt_device *mdt);
738 void mdt_ck_thread_stop(struct mdt_device *mdt);
739 void mdt_ck_timer_callback(unsigned long castmeharder);
740 int mdt_capa_keys_init(const struct lu_env *env, struct mdt_device *mdt);
742 static inline void mdt_set_capainfo(struct mdt_thread_info *info, int offset,
743 const struct lu_fid *fid,
744 struct lustre_capa *capa)
746 struct mdt_device *dev = info->mti_mdt;
747 struct md_capainfo *ci;
749 LASSERT(offset >= 0 && offset <= MD_CAPAINFO_MAX);
750 if (!dev->mdt_opts.mo_mds_capa)
753 ci = md_capainfo(info->mti_env);
755 ci->mc_fid[offset] = fid;
756 ci->mc_capa[offset] = capa;
759 static inline void mdt_dump_capainfo(struct mdt_thread_info *info)
761 struct md_capainfo *ci = md_capainfo(info->mti_env);
766 for (i = 0; i < MD_CAPAINFO_MAX; i++) {
769 if (!ci->mc_capa[i]) {
770 CERROR("no capa for index %d "DFID"\n",
771 i, PFID(ci->mc_fid[i]));
774 if (ci->mc_capa[i] == BYPASS_CAPA) {
775 CERROR("bypass for index %d "DFID"\n",
776 i, PFID(ci->mc_fid[i]));
779 DEBUG_CAPA(D_ERROR, ci->mc_capa[i], "index %d", i);
783 #endif /* __KERNEL__ */