1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (C) 2001-2003 Cluster File Systems, Inc.
6 * This file is part of Lustre, http://www.lustre.org.
8 * Lustre is free software; you can redistribute it and/or
9 * modify it under the terms of version 2 of the GNU General Public
10 * License as published by the Free Software Foundation.
12 * Lustre is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Lustre; if not, write to the Free Software
19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 #include <obd_support.h>
27 #include <lustre_import.h>
28 #include <lustre_net.h>
30 #include <lustre_lib.h>
31 #include <lustre/lustre_idl.h>
32 #include <lprocfs_status.h>
34 #if defined(__linux__)
35 #include <linux/obd_class.h>
36 #elif defined(__APPLE__)
37 #include <darwin/obd_class.h>
38 #elif defined(__WINNT__)
39 #include <winnt/obd_class.h>
41 #error Unsupported operating system.
44 /* OBD Device Declarations */
45 extern struct obd_device *obd_devs[MAX_OBD_DEVICES];
46 extern spinlock_t obd_dev_lock;
48 /* OBD Operations Declarations */
49 extern struct obd_device *class_conn2obd(struct lustre_handle *);
50 extern struct obd_device *class_exp2obd(struct obd_export *);
53 struct obd_export *class_conn2export(struct lustre_handle *);
54 int class_register_type(struct obd_ops *ops, struct lprocfs_vars *,
56 int class_unregister_type(const char *nm);
58 struct obd_device *class_newdev(const char *type_name, const char *name);
59 void class_release_dev(struct obd_device *obd);
61 int class_name2dev(const char *name);
62 struct obd_device *class_name2obd(const char *name);
63 int class_uuid2dev(struct obd_uuid *uuid);
64 struct obd_device *class_uuid2obd(struct obd_uuid *uuid);
65 void class_obd_list(void);
66 struct obd_device * class_find_client_obd(struct obd_uuid *tgt_uuid,
67 const char * typ_name,
68 struct obd_uuid *grp_uuid);
69 struct obd_device * class_find_client_notype(struct obd_uuid *tgt_uuid,
70 struct obd_uuid *grp_uuid);
71 struct obd_device * class_devices_in_group(struct obd_uuid *grp_uuid,
73 struct obd_device * class_num2obd(int num);
75 int oig_init(struct obd_io_group **oig);
76 int oig_add_one(struct obd_io_group *oig, struct oig_callback_context *occ);
77 void oig_complete_one(struct obd_io_group *oig,
78 struct oig_callback_context *occ, int rc);
79 void oig_release(struct obd_io_group *oig);
80 int oig_wait(struct obd_io_group *oig);
82 char *obd_export_nid2str(struct obd_export *exp);
84 int obd_export_evict_by_nid(struct obd_device *obd, char *nid);
85 int obd_export_evict_by_uuid(struct obd_device *obd, char *uuid);
88 int class_process_config(struct lustre_cfg *lcfg);
89 int class_process_proc_param(char *prefix, struct lprocfs_vars *lvars,
90 struct lustre_cfg *lcfg, void *data);
91 int class_attach(struct lustre_cfg *lcfg);
92 int class_setup(struct obd_device *obd, struct lustre_cfg *lcfg);
93 int class_cleanup(struct obd_device *obd, struct lustre_cfg *lcfg);
94 int class_detach(struct obd_device *obd, struct lustre_cfg *lcfg);
95 struct obd_device *class_incref(struct obd_device *obd);
96 void class_decref(struct obd_device *obd);
98 #define CFG_F_START 0x01 /* Set when we start updating from a log */
99 #define CFG_F_MARKER 0x02 /* We are within a maker */
100 #define CFG_F_SKIP 0x04 /* We should ignore this cfg command */
101 #define CFG_F_COMPAT146 0x08 /* Allow old-style logs */
102 #define CFG_F_EXCLUDE 0x10 /* OST exclusion list */
103 #define CFG_F_SERVER146 0x20 /* Using old server */
105 /* Passed as data param to class_config_parse_llog */
106 struct config_llog_instance {
108 struct super_block *cfg_sb;
109 struct obd_uuid cfg_uuid;
110 int cfg_last_idx; /* for partial llog processing */
113 int class_config_parse_llog(struct llog_ctxt *ctxt, char *name,
114 struct config_llog_instance *cfg);
115 int class_config_dump_llog(struct llog_ctxt *ctxt, char *name,
116 struct config_llog_instance *cfg);
118 /* list of active configuration logs */
119 struct config_llog_data {
121 struct ldlm_res_id cld_resid;
122 struct config_llog_instance cld_cfg;
123 struct list_head cld_list_chain;
124 atomic_t cld_refcount;
125 struct obd_export *cld_mgcexp;
126 unsigned int cld_stopping:1; /* we were told to stop watching */
127 unsigned int cld_lostlock:1; /* lock not requeued */
130 struct lustre_profile {
131 struct list_head lp_list;
137 struct lustre_profile *class_get_profile(char * prof);
138 void class_del_profile(char *prof);
139 void class_del_profiles(void);
141 #define class_export_rpc_get(exp) \
143 atomic_inc(&(exp)->exp_rpc_count); \
144 CDEBUG(D_INFO, "RPC GETting export %p : new rpc_count %d\n", \
145 (exp), atomic_read(&(exp)->exp_rpc_count)); \
146 class_export_get(exp); \
149 #define class_export_rpc_put(exp) \
151 atomic_dec(&(exp)->exp_rpc_count); \
152 CDEBUG(D_INFO, "RPC PUTting export %p : new rpc_count %d\n", \
153 (exp), atomic_read(&(exp)->exp_rpc_count)); \
154 class_export_put(exp); \
158 #define class_export_get(exp) \
160 struct obd_export *exp_ = exp; \
161 atomic_inc(&exp_->exp_refcount); \
162 CDEBUG(D_INFO, "GETting export %p : new refcount %d\n", exp_, \
163 atomic_read(&exp_->exp_refcount)); \
167 #define class_export_put(exp) \
169 LASSERT((exp) != NULL); \
170 CDEBUG(D_INFO, "PUTting export %p : new refcount %d\n", (exp), \
171 atomic_read(&(exp)->exp_refcount) - 1); \
172 LASSERT(atomic_read(&(exp)->exp_refcount) > 0); \
173 LASSERT(atomic_read(&(exp)->exp_refcount) < 0x5a5a5a); \
174 __class_export_put(exp); \
177 void __class_export_put(struct obd_export *);
178 struct obd_export *class_new_export(struct obd_device *obddev,
179 struct obd_uuid *cluuid);
180 void class_unlink_export(struct obd_export *exp);
182 struct obd_import *class_import_get(struct obd_import *);
183 void class_import_put(struct obd_import *);
184 struct obd_import *class_new_import(struct obd_device *obd);
185 void class_destroy_import(struct obd_import *exp);
187 struct obd_type *class_search_type(const char *name);
188 struct obd_type *class_get_type(const char *name);
189 void class_put_type(struct obd_type *type);
190 int class_connect(struct lustre_handle *conn, struct obd_device *obd,
191 struct obd_uuid *cluuid);
192 int class_disconnect(struct obd_export *exp);
193 void class_fail_export(struct obd_export *exp);
194 void class_disconnect_exports(struct obd_device *obddev);
195 void class_disconnect_stale_exports(struct obd_device *obddev);
196 int class_manual_cleanup(struct obd_device *obd);
199 void obdo_cpy_md(struct obdo *dst, struct obdo *src, obd_flag valid);
200 void obdo_to_ioobj(struct obdo *oa, struct obd_ioobj *ioobj);
203 #define OBT(dev) (dev)->obd_type
204 #define OBP(dev, op) (dev)->obd_type->typ_ops->o_ ## op
205 #define CTXTP(ctxt, op) (ctxt)->loc_logops->lop_##op
207 /* Ensure obd_setup: used for cleanup which must be called
208 while obd is stopping */
209 #define OBD_CHECK_DEV(obd) \
212 CERROR("NULL device\n"); \
217 /* ensure obd_setup and !obd_stopping */
218 #define OBD_CHECK_DEV_ACTIVE(obd) \
220 OBD_CHECK_DEV(obd); \
221 if (!(obd)->obd_set_up || (obd)->obd_stopping) { \
222 CERROR("Device %d not setup\n", \
230 #define OBD_COUNTER_OFFSET(op) \
231 ((offsetof(struct obd_ops, o_ ## op) - \
232 offsetof(struct obd_ops, o_iocontrol)) \
233 / sizeof(((struct obd_ops *)(0))->o_iocontrol))
235 #define OBD_COUNTER_INCREMENT(obdx, op) \
236 if ((obdx)->obd_stats != NULL) { \
237 unsigned int coffset; \
238 coffset = (unsigned int)((obdx)->obd_cntr_base) + \
239 OBD_COUNTER_OFFSET(op); \
240 LASSERT(coffset < (obdx)->obd_stats->ls_num); \
241 lprocfs_counter_incr((obdx)->obd_stats, coffset); \
244 #define EXP_COUNTER_INCREMENT(export, op) \
245 if ((export)->exp_obd->obd_stats != NULL) { \
246 unsigned int coffset; \
247 coffset = (unsigned int)((export)->exp_obd->obd_cntr_base) + \
248 OBD_COUNTER_OFFSET(op); \
249 LASSERT(coffset < (export)->exp_obd->obd_stats->ls_num); \
250 lprocfs_counter_incr((export)->exp_obd->obd_stats, coffset); \
251 if ((export)->exp_ops_stats != NULL) \
252 lprocfs_counter_incr( \
253 (export)->exp_ops_stats, coffset); \
257 #define OBD_COUNTER_OFFSET(op)
258 #define OBD_COUNTER_INCREMENT(obd, op)
259 #define EXP_COUNTER_INCREMENT(exp, op);
262 #define OBD_CHECK_OP(obd, op, err) \
264 if (!OBT(obd) || !OBP((obd), op)) {\
266 CERROR("obd_" #op ": dev %d no operation\n", \
272 #define EXP_CHECK_OP(exp, op) \
274 if ((exp) == NULL) { \
275 CERROR("obd_" #op ": NULL export\n"); \
278 if ((exp)->exp_obd == NULL || !OBT((exp)->exp_obd)) { \
279 CERROR("obd_" #op ": cleaned up obd\n"); \
280 RETURN(-EOPNOTSUPP); \
282 if (!OBT((exp)->exp_obd) || !OBP((exp)->exp_obd, op)) { \
283 CERROR("obd_" #op ": dev %d no operation\n", \
284 (exp)->exp_obd->obd_minor); \
285 RETURN(-EOPNOTSUPP); \
289 #define CTXT_CHECK_OP(ctxt, op, err) \
291 if (!OBT(ctxt->loc_obd) || !CTXTP((ctxt), op)) { \
293 CERROR("lop_" #op ": dev %d no operation\n", \
294 ctxt->loc_obd->obd_minor); \
299 static inline int class_devno_max(void)
301 return MAX_OBD_DEVICES;
304 static inline int obd_get_info(struct obd_export *exp, __u32 keylen,
305 void *key, __u32 *vallen, void *val)
310 EXP_CHECK_OP(exp, get_info);
311 EXP_COUNTER_INCREMENT(exp, get_info);
313 rc = OBP(exp->exp_obd, get_info)(exp, keylen, key, vallen, val);
317 static inline int obd_set_info_async(struct obd_export *exp, obd_count keylen,
318 void *key, obd_count vallen, void *val,
319 struct ptlrpc_request_set *set)
324 EXP_CHECK_OP(exp, set_info_async);
325 EXP_COUNTER_INCREMENT(exp, set_info_async);
327 rc = OBP(exp->exp_obd, set_info_async)(exp, keylen, key, vallen, val,
332 static inline int obd_setup(struct obd_device *obd, int datalen, void *data)
337 OBD_CHECK_OP(obd, setup, -EOPNOTSUPP);
338 OBD_COUNTER_INCREMENT(obd, setup);
340 rc = OBP(obd, setup)(obd, datalen, data);
344 static inline int obd_precleanup(struct obd_device *obd,
345 enum obd_cleanup_stage cleanup_stage)
350 OBD_CHECK_OP(obd, precleanup, 0);
351 OBD_COUNTER_INCREMENT(obd, precleanup);
353 rc = OBP(obd, precleanup)(obd, cleanup_stage);
357 static inline int obd_cleanup(struct obd_device *obd)
363 OBD_CHECK_OP(obd, cleanup, 0);
364 OBD_COUNTER_INCREMENT(obd, cleanup);
366 rc = OBP(obd, cleanup)(obd);
371 obd_process_config(struct obd_device *obd, int datalen, void *data)
376 OBD_CHECK_OP(obd, process_config, -EOPNOTSUPP);
377 OBD_COUNTER_INCREMENT(obd, process_config);
379 rc = OBP(obd, process_config)(obd, datalen, data);
383 /* Pack an in-memory MD struct for storage on disk.
384 * Returns +ve size of packed MD (0 for free), or -ve error.
386 * If @disk_tgt == NULL, MD size is returned (max size if @mem_src == NULL).
387 * If @*disk_tgt != NULL and @mem_src == NULL, @*disk_tgt will be freed.
388 * If @*disk_tgt == NULL, it will be allocated
390 static inline int obd_packmd(struct obd_export *exp,
391 struct lov_mds_md **disk_tgt,
392 struct lov_stripe_md *mem_src)
397 EXP_CHECK_OP(exp, packmd);
398 EXP_COUNTER_INCREMENT(exp, packmd);
400 rc = OBP(exp->exp_obd, packmd)(exp, disk_tgt, mem_src);
404 static inline int obd_size_diskmd(struct obd_export *exp,
405 struct lov_stripe_md *mem_src)
407 return obd_packmd(exp, NULL, mem_src);
410 /* helper functions */
411 static inline int obd_alloc_diskmd(struct obd_export *exp,
412 struct lov_mds_md **disk_tgt)
415 LASSERT(*disk_tgt == NULL);
416 return obd_packmd(exp, disk_tgt, NULL);
419 static inline int obd_free_diskmd(struct obd_export *exp,
420 struct lov_mds_md **disk_tgt)
424 return obd_packmd(exp, disk_tgt, NULL);
427 /* Unpack an MD struct from disk to in-memory format.
428 * Returns +ve size of unpacked MD (0 for free), or -ve error.
430 * If @mem_tgt == NULL, MD size is returned (max size if @disk_src == NULL).
431 * If @*mem_tgt != NULL and @disk_src == NULL, @*mem_tgt will be freed.
432 * If @*mem_tgt == NULL, it will be allocated
434 static inline int obd_unpackmd(struct obd_export *exp,
435 struct lov_stripe_md **mem_tgt,
436 struct lov_mds_md *disk_src,
442 EXP_CHECK_OP(exp, unpackmd);
443 EXP_COUNTER_INCREMENT(exp, unpackmd);
445 rc = OBP(exp->exp_obd, unpackmd)(exp, mem_tgt, disk_src, disk_len);
449 /* helper functions */
450 static inline int obd_alloc_memmd(struct obd_export *exp,
451 struct lov_stripe_md **mem_tgt)
454 LASSERT(*mem_tgt == NULL);
455 return obd_unpackmd(exp, mem_tgt, NULL, 0);
458 static inline int obd_free_memmd(struct obd_export *exp,
459 struct lov_stripe_md **mem_tgt)
463 return obd_unpackmd(exp, mem_tgt, NULL, 0);
466 static inline int obd_checkmd(struct obd_export *exp,
467 struct obd_export *md_exp,
468 struct lov_stripe_md *mem_tgt)
473 EXP_CHECK_OP(exp, checkmd);
474 EXP_COUNTER_INCREMENT(exp, checkmd);
476 rc = OBP(exp->exp_obd, checkmd)(exp, md_exp, mem_tgt);
480 static inline int obd_create(struct obd_export *exp, struct obdo *obdo,
481 struct lov_stripe_md **ea,
482 struct obd_trans_info *oti)
487 EXP_CHECK_OP(exp, create);
488 EXP_COUNTER_INCREMENT(exp, create);
490 rc = OBP(exp->exp_obd, create)(exp, obdo, ea, oti);
494 static inline int obd_destroy(struct obd_export *exp, struct obdo *obdo,
495 struct lov_stripe_md *ea,
496 struct obd_trans_info *oti,
497 struct obd_export *md_exp)
502 EXP_CHECK_OP(exp, destroy);
503 EXP_COUNTER_INCREMENT(exp, destroy);
505 rc = OBP(exp->exp_obd, destroy)(exp, obdo, ea, oti, md_exp);
509 static inline int obd_getattr(struct obd_export *exp, struct obd_info *oinfo)
514 EXP_CHECK_OP(exp, getattr);
515 EXP_COUNTER_INCREMENT(exp, getattr);
517 rc = OBP(exp->exp_obd, getattr)(exp, oinfo);
521 static inline int obd_getattr_async(struct obd_export *exp,
522 struct obd_info *oinfo,
523 struct ptlrpc_request_set *set)
528 EXP_CHECK_OP(exp, getattr_async);
529 EXP_COUNTER_INCREMENT(exp, getattr_async);
531 rc = OBP(exp->exp_obd, getattr_async)(exp, oinfo, set);
535 static inline int obd_setattr(struct obd_export *exp, struct obd_info *oinfo,
536 struct obd_trans_info *oti)
541 EXP_CHECK_OP(exp, setattr);
542 EXP_COUNTER_INCREMENT(exp, setattr);
544 rc = OBP(exp->exp_obd, setattr)(exp, oinfo, oti);
548 /* This performs all the requests set init/wait/destroy actions. */
549 static inline int obd_setattr_rqset(struct obd_export *exp,
550 struct obd_info *oinfo,
551 struct obd_trans_info *oti)
553 struct ptlrpc_request_set *set = NULL;
557 EXP_CHECK_OP(exp, setattr_async);
558 EXP_COUNTER_INCREMENT(exp, setattr_async);
560 set = ptlrpc_prep_set();
564 rc = OBP(exp->exp_obd, setattr_async)(exp, oinfo, oti, set);
566 rc = ptlrpc_set_wait(set);
567 ptlrpc_set_destroy(set);
571 /* This adds all the requests into @set if @set != NULL, otherwise
572 all requests are sent asynchronously without waiting for response. */
573 static inline int obd_setattr_async(struct obd_export *exp,
574 struct obd_info *oinfo,
575 struct obd_trans_info *oti,
576 struct ptlrpc_request_set *set)
581 EXP_CHECK_OP(exp, setattr_async);
582 EXP_COUNTER_INCREMENT(exp, setattr_async);
584 rc = OBP(exp->exp_obd, setattr_async)(exp, oinfo, oti, set);
588 static inline int obd_add_conn(struct obd_import *imp, struct obd_uuid *uuid,
591 struct obd_device *obd = imp->imp_obd;
595 OBD_CHECK_DEV_ACTIVE(obd);
596 OBD_CHECK_OP(obd, add_conn, -EOPNOTSUPP);
597 OBD_COUNTER_INCREMENT(obd, add_conn);
599 rc = OBP(obd, add_conn)(imp, uuid, priority);
603 static inline int obd_del_conn(struct obd_import *imp, struct obd_uuid *uuid)
605 struct obd_device *obd = imp->imp_obd;
609 OBD_CHECK_DEV_ACTIVE(obd);
610 OBD_CHECK_OP(obd, del_conn, -EOPNOTSUPP);
611 OBD_COUNTER_INCREMENT(obd, del_conn);
613 rc = OBP(obd, del_conn)(imp, uuid);
617 static inline int obd_connect(struct lustre_handle *conn,struct obd_device *obd,
618 struct obd_uuid *cluuid,
619 struct obd_connect_data *d)
622 __u64 ocf = d ? d->ocd_connect_flags : 0; /* for post-condition check */
625 OBD_CHECK_DEV_ACTIVE(obd);
626 OBD_CHECK_OP(obd, connect, -EOPNOTSUPP);
627 OBD_COUNTER_INCREMENT(obd, connect);
629 rc = OBP(obd, connect)(conn, obd, cluuid, d);
630 /* check that only subset is granted */
631 LASSERT(ergo(d != NULL,
632 (d->ocd_connect_flags & ocf) == d->ocd_connect_flags));
636 static inline int obd_reconnect(struct obd_export *exp,
637 struct obd_device *obd,
638 struct obd_uuid *cluuid,
639 struct obd_connect_data *d)
642 __u64 ocf = d ? d->ocd_connect_flags : 0; /* for post-condition check */
645 OBD_CHECK_DEV_ACTIVE(obd);
646 OBD_CHECK_OP(obd, reconnect, 0);
647 OBD_COUNTER_INCREMENT(obd, reconnect);
649 rc = OBP(obd, reconnect)(exp, obd, cluuid, d);
650 /* check that only subset is granted */
651 LASSERT(ergo(d != NULL,
652 (d->ocd_connect_flags & ocf) == d->ocd_connect_flags));
656 static inline int obd_disconnect(struct obd_export *exp)
661 EXP_CHECK_OP(exp, disconnect);
662 EXP_COUNTER_INCREMENT(exp, disconnect);
664 rc = OBP(exp->exp_obd, disconnect)(exp);
668 static inline int obd_ping(struct obd_export *exp)
673 OBD_CHECK_OP(exp->exp_obd, ping, 0);
674 EXP_COUNTER_INCREMENT(exp, ping);
676 rc = OBP(exp->exp_obd, ping)(exp);
680 static inline int obd_init_export(struct obd_export *exp)
685 if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
686 OBP((exp)->exp_obd, init_export))
687 rc = OBP(exp->exp_obd, init_export)(exp);
691 static inline int obd_destroy_export(struct obd_export *exp)
694 if ((exp)->exp_obd != NULL && OBT((exp)->exp_obd) &&
695 OBP((exp)->exp_obd, destroy_export))
696 OBP(exp->exp_obd, destroy_export)(exp);
700 static inline int obd_extent_calc(struct obd_export *exp,
701 struct lov_stripe_md *md,
702 int cmd, obd_off *offset)
706 EXP_CHECK_OP(exp, extent_calc);
707 rc = OBP(exp->exp_obd, extent_calc)(exp, md, cmd, offset);
711 static inline struct dentry *
712 obd_lvfs_fid2dentry(struct obd_export *exp, __u64 id_ino, __u32 gen, __u64 gr)
714 LASSERT(exp->exp_obd);
716 return lvfs_fid2dentry(&exp->exp_obd->obd_lvfs_ctxt, id_ino, gen, gr,
721 #define time_before(t1, t2) ((long)t2 - (long)t1 > 0)
724 /* @max_age is the oldest time in jiffies that we accept using a cached data.
725 * If the cache is older than @max_age we will get a new value from the
726 * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
727 static inline int obd_statfs_async(struct obd_device *obd,
728 struct obd_info *oinfo,
730 struct ptlrpc_request_set *rqset)
738 OBD_CHECK_OP(obd, statfs, -EOPNOTSUPP);
739 OBD_COUNTER_INCREMENT(obd, statfs);
741 CDEBUG(D_SUPER, "%s: osfs %p age "LPU64", max_age "LPU64"\n",
742 obd->obd_name, &obd->obd_osfs, obd->obd_osfs_age, max_age);
743 if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
744 rc = OBP(obd, statfs_async)(obd, oinfo, max_age, rqset);
746 CDEBUG(D_SUPER,"%s: use %p cache blocks "LPU64"/"LPU64
747 " objects "LPU64"/"LPU64"\n",
748 obd->obd_name, &obd->obd_osfs,
749 obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
750 obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
751 spin_lock(&obd->obd_osfs_lock);
752 memcpy(oinfo->oi_osfs, &obd->obd_osfs, sizeof(*oinfo->oi_osfs));
753 spin_unlock(&obd->obd_osfs_lock);
755 oinfo->oi_cb_up(oinfo, 0);
760 static inline int obd_statfs_rqset(struct obd_device *obd,
761 struct obd_statfs *osfs, __u64 max_age)
763 struct ptlrpc_request_set *set = NULL;
764 struct obd_info oinfo = { { { 0 } } };
768 set = ptlrpc_prep_set();
772 oinfo.oi_osfs = osfs;
773 rc = obd_statfs_async(obd, &oinfo, max_age, set);
775 rc = ptlrpc_set_wait(set);
776 ptlrpc_set_destroy(set);
780 /* @max_age is the oldest time in jiffies that we accept using a cached data.
781 * If the cache is older than @max_age we will get a new value from the
782 * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */
783 static inline int obd_statfs(struct obd_device *obd, struct obd_statfs *osfs,
792 OBD_CHECK_OP(obd, statfs, -EOPNOTSUPP);
793 OBD_COUNTER_INCREMENT(obd, statfs);
795 CDEBUG(D_SUPER, "osfs "LPU64", max_age "LPU64"\n",
796 obd->obd_osfs_age, max_age);
797 if (cfs_time_before_64(obd->obd_osfs_age, max_age)) {
798 rc = OBP(obd, statfs)(obd, osfs, max_age);
800 spin_lock(&obd->obd_osfs_lock);
801 memcpy(&obd->obd_osfs, osfs, sizeof(obd->obd_osfs));
802 obd->obd_osfs_age = cfs_time_current_64();
803 spin_unlock(&obd->obd_osfs_lock);
806 CDEBUG(D_SUPER,"%s: use %p cache blocks "LPU64"/"LPU64
807 " objects "LPU64"/"LPU64"\n",
808 obd->obd_name, &obd->obd_osfs,
809 obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks,
810 obd->obd_osfs.os_ffree, obd->obd_osfs.os_files);
811 spin_lock(&obd->obd_osfs_lock);
812 memcpy(osfs, &obd->obd_osfs, sizeof(*osfs));
813 spin_unlock(&obd->obd_osfs_lock);
818 static inline int obd_sync(struct obd_export *exp, struct obdo *oa,
819 struct lov_stripe_md *ea, obd_size start,
825 OBD_CHECK_OP(exp->exp_obd, sync, -EOPNOTSUPP);
826 EXP_COUNTER_INCREMENT(exp, sync);
828 rc = OBP(exp->exp_obd, sync)(exp, oa, ea, start, end);
832 static inline int obd_punch_rqset(struct obd_export *exp,
833 struct obd_info *oinfo,
834 struct obd_trans_info *oti)
836 struct ptlrpc_request_set *set = NULL;
840 EXP_CHECK_OP(exp, punch);
841 EXP_COUNTER_INCREMENT(exp, punch);
843 set = ptlrpc_prep_set();
847 rc = OBP(exp->exp_obd, punch)(exp, oinfo, oti, set);
849 rc = ptlrpc_set_wait(set);
850 ptlrpc_set_destroy(set);
854 static inline int obd_punch(struct obd_export *exp, struct obd_info *oinfo,
855 struct obd_trans_info *oti,
856 struct ptlrpc_request_set *rqset)
861 EXP_CHECK_OP(exp, punch);
862 EXP_COUNTER_INCREMENT(exp, punch);
864 rc = OBP(exp->exp_obd, punch)(exp, oinfo, oti, rqset);
868 static inline int obd_brw(int cmd, struct obd_export *exp,
869 struct obd_info *oinfo, obd_count oa_bufs,
870 struct brw_page *pg, struct obd_trans_info *oti)
875 EXP_CHECK_OP(exp, brw);
876 EXP_COUNTER_INCREMENT(exp, brw);
878 if (!(cmd & (OBD_BRW_RWMASK | OBD_BRW_CHECK))) {
879 CERROR("obd_brw: cmd must be OBD_BRW_READ, OBD_BRW_WRITE, "
880 "or OBD_BRW_CHECK\n");
884 rc = OBP(exp->exp_obd, brw)(cmd, exp, oinfo, oa_bufs, pg, oti);
888 static inline int obd_brw_async(int cmd, struct obd_export *exp,
889 struct obd_info *oinfo, obd_count oa_bufs,
890 struct brw_page *pg, struct obd_trans_info *oti,
891 struct ptlrpc_request_set *set)
896 EXP_CHECK_OP(exp, brw_async);
897 EXP_COUNTER_INCREMENT(exp, brw_async);
899 if (!(cmd & OBD_BRW_RWMASK)) {
900 CERROR("obd_brw: cmd must be OBD_BRW_READ or OBD_BRW_WRITE\n");
904 rc = OBP(exp->exp_obd, brw_async)(cmd, exp, oinfo, oa_bufs, pg,oti,set);
908 static inline int obd_brw_rqset(int cmd, struct obd_export *exp,
909 struct obdo *oa, struct lov_stripe_md *lsm,
910 obd_count oa_bufs, struct brw_page *pg,
911 struct obd_trans_info *oti)
913 struct ptlrpc_request_set *set = NULL;
914 struct obd_info oinfo = { { { 0 } } };
918 set = ptlrpc_prep_set();
924 rc = obd_brw_async(cmd, exp, &oinfo, oa_bufs, pg, oti, set);
926 rc = ptlrpc_set_wait(set);
928 CERROR("error from callback: rc = %d\n", rc);
930 CDEBUG(rc == -ENOSPC ? D_INODE : D_ERROR,
931 "error from obd_brw_async: rc = %d\n", rc);
933 ptlrpc_set_destroy(set);
937 static inline int obd_prep_async_page(struct obd_export *exp,
938 struct lov_stripe_md *lsm,
939 struct lov_oinfo *loi,
940 cfs_page_t *page, obd_off offset,
941 struct obd_async_page_ops *ops,
942 void *data, void **res)
947 OBD_CHECK_OP(exp->exp_obd, prep_async_page, -EOPNOTSUPP);
948 EXP_COUNTER_INCREMENT(exp, prep_async_page);
950 ret = OBP(exp->exp_obd, prep_async_page)(exp, lsm, loi, page, offset,
955 static inline int obd_queue_async_io(struct obd_export *exp,
956 struct lov_stripe_md *lsm,
957 struct lov_oinfo *loi, void *cookie,
958 int cmd, obd_off off, int count,
959 obd_flag brw_flags, obd_flag async_flags)
964 OBD_CHECK_OP(exp->exp_obd, queue_async_io, -EOPNOTSUPP);
965 EXP_COUNTER_INCREMENT(exp, queue_async_io);
966 LASSERT(cmd & OBD_BRW_RWMASK);
968 rc = OBP(exp->exp_obd, queue_async_io)(exp, lsm, loi, cookie, cmd, off,
969 count, brw_flags, async_flags);
973 static inline int obd_set_async_flags(struct obd_export *exp,
974 struct lov_stripe_md *lsm,
975 struct lov_oinfo *loi, void *cookie,
976 obd_flag async_flags)
981 OBD_CHECK_OP(exp->exp_obd, set_async_flags, -EOPNOTSUPP);
982 EXP_COUNTER_INCREMENT(exp, set_async_flags);
984 rc = OBP(exp->exp_obd, set_async_flags)(exp, lsm, loi, cookie,
989 static inline int obd_queue_group_io(struct obd_export *exp,
990 struct lov_stripe_md *lsm,
991 struct lov_oinfo *loi,
992 struct obd_io_group *oig,
993 void *cookie, int cmd, obd_off off,
994 int count, obd_flag brw_flags,
995 obd_flag async_flags)
1000 OBD_CHECK_OP(exp->exp_obd, queue_group_io, -EOPNOTSUPP);
1001 EXP_COUNTER_INCREMENT(exp, queue_group_io);
1002 LASSERT(cmd & OBD_BRW_RWMASK);
1004 rc = OBP(exp->exp_obd, queue_group_io)(exp, lsm, loi, oig, cookie,
1005 cmd, off, count, brw_flags,
1010 static inline int obd_trigger_group_io(struct obd_export *exp,
1011 struct lov_stripe_md *lsm,
1012 struct lov_oinfo *loi,
1013 struct obd_io_group *oig)
1018 OBD_CHECK_OP(exp->exp_obd, trigger_group_io, -EOPNOTSUPP);
1019 EXP_COUNTER_INCREMENT(exp, trigger_group_io);
1021 rc = OBP(exp->exp_obd, trigger_group_io)(exp, lsm, loi, oig);
1025 static inline int obd_teardown_async_page(struct obd_export *exp,
1026 struct lov_stripe_md *lsm,
1027 struct lov_oinfo *loi, void *cookie)
1032 OBD_CHECK_OP(exp->exp_obd, teardown_async_page, -EOPNOTSUPP);
1033 EXP_COUNTER_INCREMENT(exp, teardown_async_page);
1035 rc = OBP(exp->exp_obd, teardown_async_page)(exp, lsm, loi, cookie);
1039 static inline int obd_preprw(int cmd, struct obd_export *exp, struct obdo *oa,
1040 int objcount, struct obd_ioobj *obj,
1041 int niocount, struct niobuf_remote *remote,
1042 struct niobuf_local *local,
1043 struct obd_trans_info *oti)
1048 OBD_CHECK_OP(exp->exp_obd, preprw, -EOPNOTSUPP);
1049 EXP_COUNTER_INCREMENT(exp, preprw);
1051 rc = OBP(exp->exp_obd, preprw)(cmd, exp, oa, objcount, obj, niocount,
1052 remote, local, oti);
1056 static inline int obd_commitrw(int cmd, struct obd_export *exp, struct obdo *oa,
1057 int objcount, struct obd_ioobj *obj,
1058 int niocount, struct niobuf_local *local,
1059 struct obd_trans_info *oti, int rc)
1063 OBD_CHECK_OP(exp->exp_obd, commitrw, -EOPNOTSUPP);
1064 EXP_COUNTER_INCREMENT(exp, commitrw);
1066 rc = OBP(exp->exp_obd, commitrw)(cmd, exp, oa, objcount, obj, niocount,
1071 static inline int obd_merge_lvb(struct obd_export *exp,
1072 struct lov_stripe_md *lsm,
1073 struct ost_lvb *lvb, int kms_only)
1078 OBD_CHECK_OP(exp->exp_obd, merge_lvb, -EOPNOTSUPP);
1079 EXP_COUNTER_INCREMENT(exp, merge_lvb);
1081 rc = OBP(exp->exp_obd, merge_lvb)(exp, lsm, lvb, kms_only);
1085 static inline int obd_adjust_kms(struct obd_export *exp,
1086 struct lov_stripe_md *lsm, obd_off size,
1092 OBD_CHECK_OP(exp->exp_obd, adjust_kms, -EOPNOTSUPP);
1093 EXP_COUNTER_INCREMENT(exp, adjust_kms);
1095 rc = OBP(exp->exp_obd, adjust_kms)(exp, lsm, size, shrink);
1099 static inline int obd_iocontrol(unsigned int cmd, struct obd_export *exp,
1100 int len, void *karg, void *uarg)
1105 EXP_CHECK_OP(exp, iocontrol);
1106 EXP_COUNTER_INCREMENT(exp, iocontrol);
1108 rc = OBP(exp->exp_obd, iocontrol)(cmd, exp, len, karg, uarg);
1112 static inline int obd_enqueue_rqset(struct obd_export *exp,
1113 struct obd_info *oinfo,
1114 struct obd_enqueue_info *einfo)
1119 EXP_CHECK_OP(exp, enqueue);
1120 EXP_COUNTER_INCREMENT(exp, enqueue);
1122 einfo->ei_rqset = ptlrpc_prep_set();
1123 if (einfo->ei_rqset == NULL)
1126 rc = OBP(exp->exp_obd, enqueue)(exp, oinfo, einfo);
1128 rc = ptlrpc_set_wait(einfo->ei_rqset);
1129 ptlrpc_set_destroy(einfo->ei_rqset);
1130 einfo->ei_rqset = NULL;
1135 static inline int obd_enqueue(struct obd_export *exp,
1136 struct obd_info *oinfo,
1137 struct obd_enqueue_info *einfo)
1142 EXP_CHECK_OP(exp, enqueue);
1143 EXP_COUNTER_INCREMENT(exp, enqueue);
1145 rc = OBP(exp->exp_obd, enqueue)(exp, oinfo, einfo);
1149 static inline int obd_match(struct obd_export *exp, struct lov_stripe_md *ea,
1150 __u32 type, ldlm_policy_data_t *policy, __u32 mode,
1151 int *flags, void *data, struct lustre_handle *lockh)
1156 EXP_CHECK_OP(exp, match);
1157 EXP_COUNTER_INCREMENT(exp, match);
1159 rc = OBP(exp->exp_obd, match)(exp, ea, type, policy, mode, flags, data,
1164 static inline int obd_change_cbdata(struct obd_export *exp,
1165 struct lov_stripe_md *lsm,
1166 ldlm_iterator_t it, void *data)
1171 EXP_CHECK_OP(exp, change_cbdata);
1172 EXP_COUNTER_INCREMENT(exp, change_cbdata);
1174 rc = OBP(exp->exp_obd, change_cbdata)(exp, lsm, it, data);
1178 static inline int obd_cancel(struct obd_export *exp,
1179 struct lov_stripe_md *ea, __u32 mode,
1180 struct lustre_handle *lockh)
1185 EXP_CHECK_OP(exp, cancel);
1186 EXP_COUNTER_INCREMENT(exp, cancel);
1188 rc = OBP(exp->exp_obd, cancel)(exp, ea, mode, lockh);
1192 static inline int obd_cancel_unused(struct obd_export *exp,
1193 struct lov_stripe_md *ea, int flags,
1199 EXP_CHECK_OP(exp, cancel_unused);
1200 EXP_COUNTER_INCREMENT(exp, cancel_unused);
1202 rc = OBP(exp->exp_obd, cancel_unused)(exp, ea, flags, opaque);
1206 static inline int obd_join_lru(struct obd_export *exp,
1207 struct lov_stripe_md *ea, int join)
1212 EXP_CHECK_OP(exp, join_lru);
1213 EXP_COUNTER_INCREMENT(exp, join_lru);
1215 rc = OBP(exp->exp_obd, join_lru)(exp, ea, join);
1219 static inline int obd_pin(struct obd_export *exp, obd_id ino, __u32 gen,
1220 int type, struct obd_client_handle *handle, int flag)
1225 EXP_CHECK_OP(exp, pin);
1226 EXP_COUNTER_INCREMENT(exp, pin);
1228 rc = OBP(exp->exp_obd, pin)(exp, ino, gen, type, handle, flag);
1232 static inline int obd_unpin(struct obd_export *exp,
1233 struct obd_client_handle *handle, int flag)
1238 EXP_CHECK_OP(exp, unpin);
1239 EXP_COUNTER_INCREMENT(exp, unpin);
1241 rc = OBP(exp->exp_obd, unpin)(exp, handle, flag);
1246 static inline void obd_import_event(struct obd_device *obd,
1247 struct obd_import *imp,
1248 enum obd_import_event event)
1252 CERROR("NULL device\n");
1256 if (obd->obd_set_up && OBP(obd, import_event)) {
1257 OBD_COUNTER_INCREMENT(obd, import_event);
1258 OBP(obd, import_event)(obd, imp, event);
1263 static inline int obd_notify(struct obd_device *obd,
1264 struct obd_device *watched,
1265 enum obd_notify_event ev, void *data)
1270 /* the check for async_recov is a complete hack - I'm hereby
1271 overloading the meaning to also mean "this was called from
1272 mds_postsetup". I know that my mds is able to handle notifies
1273 by this point, and it needs to get them to execute mds_postrecov. */
1274 if (!obd->obd_set_up && !obd->obd_async_recov) {
1275 CDEBUG(D_HA, "obd %s not set up\n", obd->obd_name);
1279 if (!OBP(obd, notify))
1282 OBD_COUNTER_INCREMENT(obd, notify);
1283 RETURN(OBP(obd, notify)(obd, watched, ev, data));
1286 static inline int obd_notify_observer(struct obd_device *observer,
1287 struct obd_device *observed,
1288 enum obd_notify_event ev, void *data)
1293 struct obd_notify_upcall *onu;
1295 if (observer->obd_observer)
1296 rc1 = obd_notify(observer->obd_observer, observed, ev, data);
1300 * Also, call non-obd listener, if any
1302 onu = &observer->obd_upcall;
1303 if (onu->onu_upcall != NULL)
1304 rc2 = onu->onu_upcall(observer, observed, ev, onu->onu_owner);
1311 static inline int obd_quotacheck(struct obd_export *exp,
1312 struct obd_quotactl *oqctl)
1317 EXP_CHECK_OP(exp, quotacheck);
1318 EXP_COUNTER_INCREMENT(exp, quotacheck);
1320 rc = OBP(exp->exp_obd, quotacheck)(exp, oqctl);
1324 static inline int obd_quotactl(struct obd_export *exp,
1325 struct obd_quotactl *oqctl)
1330 EXP_CHECK_OP(exp, quotactl);
1331 EXP_COUNTER_INCREMENT(exp, quotactl);
1333 rc = OBP(exp->exp_obd, quotactl)(exp, oqctl);
1337 static inline int obd_health_check(struct obd_device *obd)
1339 /* returns: 0 on healthy
1340 * >0 on unhealthy + reason code/flag
1341 * however the only suppored reason == 1 right now
1342 * We'll need to define some better reasons
1343 * or flags in the future.
1349 /* don't use EXP_CHECK_OP, because NULL method is normal here */
1350 if (obd == NULL || !OBT(obd)) {
1351 CERROR("cleaned up obd\n");
1352 RETURN(-EOPNOTSUPP);
1354 if (!obd->obd_set_up || obd->obd_stopping)
1356 if (!OBP(obd, health_check))
1359 rc = OBP(obd, health_check)(obd);
1363 static inline int obd_register_observer(struct obd_device *obd,
1364 struct obd_device *observer)
1368 if (obd->obd_observer && observer)
1370 obd->obd_observer = observer;
1374 /* OBD Metadata Support */
1376 extern int obd_init_caches(void);
1377 extern void obd_cleanup_caches(void);
1379 /* support routines */
1380 extern cfs_mem_cache_t *obdo_cachep;
1381 static inline struct obdo *obdo_alloc(void)
1385 OBD_SLAB_ALLOC(oa, obdo_cachep, CFS_ALLOC_STD, sizeof(*oa));
1390 static inline void obdo_free(struct obdo *oa)
1392 OBD_SLAB_FREE(oa, obdo_cachep, sizeof(*oa));
1395 /* I'm as embarrassed about this as you are.
1397 * <shaver> // XXX do not look into _superhack with remaining eye
1398 * <shaver> // XXX if this were any uglier, I'd get my own show on MTV */
1399 extern int (*ptlrpc_put_connection_superhack)(struct ptlrpc_connection *c);
1402 extern void obd_sysctl_init (void);
1403 extern void obd_sysctl_clean (void);
1406 typedef __u8 class_uuid_t[16];
1407 void class_generate_random_uuid(class_uuid_t uuid);
1408 void class_uuid_unparse(class_uuid_t in, struct obd_uuid *out);
1411 int lustre_uuid_to_peer(char *uuid, lnet_nid_t *peer_nid, int index);
1412 int class_add_uuid(char *uuid, __u64 nid);
1413 int class_del_uuid (char *uuid);
1414 void class_init_uuidlist(void);
1415 void class_exit_uuidlist(void);
1417 #endif /* __LINUX_OBD_CLASS_H */