1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
4 * Copyright (C) 2001, 2002 Cluster File Systems, Inc.
6 * This code is issued under the GNU General Public License.
7 * See the file COPYING in this distribution
13 #define IOC_OSC_TYPE 'h'
14 #define IOC_OSC_MIN_NR 20
15 #define IOC_OSC_SET_ACTIVE _IOWR(IOC_OSC_TYPE, 21, struct obd_device *)
16 #define IOC_OSC_MAX_NR 50
18 #define IOC_MDC_TYPE 'i'
19 #define IOC_MDC_MIN_NR 20
20 #define IOC_MDC_LOOKUP _IOWR(IOC_MDC_TYPE, 20, struct obd_device *)
21 #define IOC_MDC_GETSTRIPE _IOWR(IOC_MDC_TYPE, 21, struct lov_mds_md *)
22 #define IOC_MDC_MAX_NR 50
25 # include <linux/fs.h>
26 # include <linux/list.h>
27 # include <linux/sched.h> /* for struct task_struct, for current.h */
28 # include <asm/current.h> /* for smp_lock.h */
29 # include <linux/smp_lock.h>
30 # include <linux/proc_fs.h>
31 # include <linux/mount.h>
34 #include <linux/lustre_lib.h>
35 #include <linux/lustre_idl.h>
36 #include <linux/lustre_export.h>
38 /* this is really local to the OSC */
39 struct loi_oap_pages {
40 struct list_head lop_pending;
42 struct list_head lop_urgent;
43 struct list_head lop_pending_group;
46 struct lov_oinfo { /* per-stripe data structure */
47 __u64 loi_id; /* object ID on the target OST */
48 __u64 loi_gr; /* object group on the target OST */
49 int loi_ost_idx; /* OST stripe index in lov_tgt_desc->tgts */
50 int loi_ost_gen; /* generation of this loi_ost_idx */
52 /* used by the osc to keep track of what objects to build into rpcs */
53 struct loi_oap_pages loi_read_lop;
54 struct loi_oap_pages loi_write_lop;
55 /* _cli_ is poorly named, it should be _ready_ */
56 struct list_head loi_cli_item;
57 struct list_head loi_write_item;
58 struct list_head loi_read_item;
61 __u64 loi_kms; /* known minimum size */
62 __u64 loi_rss; /* recently seen size */
63 __u64 loi_mtime; /* recently seen mtime */
66 static inline void loi_init(struct lov_oinfo *loi)
68 INIT_LIST_HEAD(&loi->loi_read_lop.lop_pending);
69 INIT_LIST_HEAD(&loi->loi_read_lop.lop_urgent);
70 INIT_LIST_HEAD(&loi->loi_read_lop.lop_pending_group);
71 INIT_LIST_HEAD(&loi->loi_write_lop.lop_pending);
72 INIT_LIST_HEAD(&loi->loi_write_lop.lop_urgent);
73 INIT_LIST_HEAD(&loi->loi_write_lop.lop_pending_group);
74 INIT_LIST_HEAD(&loi->loi_cli_item);
75 INIT_LIST_HEAD(&loi->loi_write_item);
76 INIT_LIST_HEAD(&loi->loi_read_item);
79 struct lov_stripe_md {
81 __u64 lsm_object_id; /* lov object id */
82 __u64 lsm_object_gr; /* lov object id */
83 __u64 lsm_maxbytes; /* maximum possible file size */
84 unsigned long lsm_xfersize; /* optimal transfer size */
86 /* LOV-private members start here -- only for use in lov/. */
88 __u32 lsm_stripe_size; /* size of the stripe */
89 __u32 lsm_pattern; /* striping pattern (RAID0, RAID1) */
90 unsigned lsm_stripe_count; /* number of objects being striped over */
91 struct lov_oinfo lsm_oinfo[0];
95 struct list_head typ_chain;
96 struct obd_ops *typ_ops;
97 struct proc_dir_entry *typ_procroot;
110 ASYNC_READY = 0x1, /* ap_make_ready will not be called before this
111 page is added to an rpc */
113 ASYNC_COUNT_STABLE = 0x4, /* ap_refresh_count will not be called
114 to give the caller a chance to update
115 or cancel the size of the io */
116 ASYNC_GROUP_SYNC = 0x8, /* ap_completion will not be called, instead
117 the page is accounted for in the
118 obd_io_group given to
119 obd_queue_group_io */
122 struct obd_async_page_ops {
123 int (*ap_make_ready)(void *data, int cmd);
124 int (*ap_refresh_count)(void *data, int cmd);
125 void (*ap_fill_obdo)(void *data, int cmd, struct obdo *oa);
126 void (*ap_completion)(void *data, int cmd, int rc);
129 /* the `oig' is passed down from a caller of obd rw methods. the callee
130 * records enough state such that the caller can sleep on the oig and
131 * be woken when all the callees have finished their work */
132 struct obd_io_group {
134 atomic_t oig_refcount;
137 struct list_head oig_occ_list;
138 wait_queue_head_t oig_waitq;
141 /* the oig callback context lets the callee of obd rw methods register
142 * for callbacks from the caller. */
143 struct oig_callback_context {
144 struct list_head occ_oig_item;
145 /* called when the caller has received a signal while sleeping.
146 * callees of this method are encouraged to abort their state
147 * in the oig. This may be called multiple times. */
148 void (*occ_interrupted)(struct oig_callback_context *occ);
151 /* if we find more consumers this could be generalized */
152 #define OBD_HIST_MAX 32
153 struct obd_histogram {
155 unsigned long oh_buckets[OBD_HIST_MAX];
158 /* Individual type definitions */
160 struct ost_server_data;
163 const char *fo_fstype;
164 struct super_block *fo_sb;
165 struct vfsmount *fo_vfsmnt;
166 struct dentry *fo_dentry_O;
167 struct dentry **fo_dentry_O_groups;
168 struct dentry **fo_dentry_O_sub;
169 spinlock_t fo_objidlock; /* protect fo_lastobjid increment */
170 spinlock_t fo_translock; /* protect fsd_last_rcvd increment */
171 struct file *fo_rcvd_filp;
172 struct filter_server_data *fo_fsd;
173 unsigned long *fo_last_rcvd_slots;
174 __u64 fo_mount_count;
176 struct file_operations *fo_fop;
177 struct inode_operations *fo_iop;
178 struct address_space_operations *fo_aops;
180 struct list_head fo_export_list;
183 obd_size fo_tot_dirty; /* protected by obd_osfs_lock */
184 obd_size fo_tot_granted; /* all values in bytes */
185 obd_size fo_tot_pending;
187 obd_size fo_readcache_max_filesize;
189 struct obd_import *fo_mdc_imp;
190 struct obd_uuid fo_mdc_uuid;
191 struct lustre_handle fo_mdc_conn;
193 struct ptlrpc_client fo_mdc_client;
195 struct file **fo_last_objid_files;
196 __u64 *fo_last_objids; /* last created objid for groups */
198 struct semaphore fo_alloc_lock;
200 struct obd_histogram fo_r_pages;
201 struct obd_histogram fo_w_pages;
202 struct obd_histogram fo_r_discont_pages;
203 struct obd_histogram fo_w_discont_pages;
204 struct obd_histogram fo_r_discont_blocks;
205 struct obd_histogram fo_w_discont_blocks;
208 struct mds_server_data;
210 #define OSC_MAX_RIF_DEFAULT 4
211 #define OSC_MAX_RIF_MAX 32
212 #define OSC_MAX_DIRTY_DEFAULT 4
213 #define OSC_MAX_DIRTY_MB_MAX 256 /* totally arbitrary */
217 struct obd_import *cl_import;
218 struct semaphore cl_sem;
220 /* max_mds_easize is purely a performance thing so we don't have to
221 * call obd_size_wiremd() all the time. */
222 int cl_max_mds_easize;
223 int cl_max_mds_cookiesize;
226 //struct llog_canceld_ctxt *cl_llcd; /* it's included by obd_llog_ctxt */
227 void *cl_llcd_offset;
229 struct obd_device *cl_mgmtcli_obd;
231 /* the grant values are protected by loi_list_lock below */
232 long cl_dirty; /* all _dirty_ in bytes */
233 long cl_dirty_max; /* allowed w/o rpc */
234 long cl_avail_grant; /* bytes of credit for ost */
235 long cl_lost_grant; /* lost credits (trunc) */
236 struct list_head cl_cache_waiters; /* waiting for cache/grant */
238 /* keep track of objects that have lois that contain pages which
239 * have been queued for async brw. this lock also protects the
240 * lists of osc_client_pages that hang off of the loi */
241 spinlock_t cl_loi_list_lock;
242 struct list_head cl_loi_ready_list;
243 struct list_head cl_loi_write_list;
244 struct list_head cl_loi_read_list;
245 int cl_brw_in_flight;
246 /* just a sum of the loi/lop pending numbers to be exported by /proc */
247 int cl_pending_w_pages;
248 int cl_pending_r_pages;
249 int cl_max_pages_per_rpc;
250 int cl_max_rpcs_in_flight;
251 struct obd_histogram cl_read_rpc_hist;
252 struct obd_histogram cl_write_rpc_hist;
253 struct obd_histogram cl_read_page_hist;
254 struct obd_histogram cl_write_page_hist;
256 struct mdc_rpc_lock *cl_rpc_lock;
257 struct mdc_rpc_lock *cl_setattr_lock;
258 struct osc_creator cl_oscc;
261 /* Like a client, with some hangers-on. Keep mc_client_obd first so that we
262 * can reuse the various client setup/connect functions. */
264 struct client_obd mc_client_obd; /* nested */
265 struct ptlrpc_thread *mc_ping_thread;
266 struct obd_export *mc_ping_exp; /* XXX single-target */
267 struct list_head mc_registered;
271 #define mc_import mc_client_obd.cl_import
274 struct ptlrpc_service *mds_service;
275 struct ptlrpc_service *mds_setattr_service;
276 struct ptlrpc_service *mds_readpage_service;
277 struct super_block *mds_sb;
278 struct vfsmount *mds_vfsmnt;
279 struct dentry *mds_fid_de;
281 int mds_max_cookiesize;
282 struct file *mds_rcvd_filp;
283 spinlock_t mds_transno_lock;
284 __u64 mds_last_transno;
285 __u64 mds_mount_count;
287 struct semaphore mds_epoch_sem;
288 struct ll_fid mds_rootfid;
289 struct mds_server_data *mds_server_data;
290 struct dentry *mds_pending_dir;
291 struct dentry *mds_logs_dir;
292 struct dentry *mds_objects_dir;
293 struct llog_handle *mds_cfg_llh;
294 // struct llog_handle *mds_catalog;
295 struct obd_device *mds_osc_obd; /* XXX lov_obd */
296 struct obd_uuid mds_lov_uuid;
298 struct obd_export *mds_osc_exp; /* XXX lov_exp */
299 int mds_has_lov_desc;
300 struct lov_desc mds_lov_desc;
301 obd_id *mds_lov_objids;
302 int mds_lov_objids_valid;
303 int mds_lov_nextid_set;
304 struct file *mds_lov_objid_filp;
305 unsigned long *mds_client_bitmap;
306 struct semaphore mds_orphan_recovery_sem;
308 atomic_t mds_open_count;
325 * this struct does double-duty acting as either a client or
326 * server instance .. maybe not wise.
330 struct ptlrpc_service *ptlbd_service;
333 struct ptlrpc_client bd_client;
334 struct obd_import *bd_import;
335 struct obd_uuid bd_server_uuid;
336 struct obd_export *bd_exp;
337 int refcount; /* XXX sigh */
341 spinlock_t recovd_lock;
342 struct list_head recovd_managed_items; /* items managed */
343 struct list_head recovd_troubled_items; /* items in recovery */
345 wait_queue_head_t recovd_recovery_waitq;
346 wait_queue_head_t recovd_ctl_waitq;
347 wait_queue_head_t recovd_waitq;
348 struct task_struct *recovd_thread;
353 struct ptlrpc_service *ost_service;
354 struct ptlrpc_service *ost_create_service;
357 struct echo_client_obd {
358 struct obd_export *ec_exp; /* the local connection to osc/lov */
360 struct list_head ec_objects;
366 struct obd_export *cobd_target_exp;/* local connection to target obd */
367 struct obd_export *cobd_cache_exp; /* local connection to cache obd */
370 struct lov_tgt_desc {
371 struct obd_uuid uuid;
372 struct obd_export *ltd_exp;
373 int active; /* is this target up for requests */
378 struct lov_desc desc;
381 int lo_catalog_loaded:1;
382 struct lov_tgt_desc *tgts;
385 struct niobuf_local {
390 struct dentry *dentry;
396 /* Don't conflict with on-wire flags OBD_BRW_WRITE, etc */
397 #define N_LOCAL_TEMP_PAGE 0x10000000
399 struct obd_trans_info {
402 /* Only used on the server side for tracking acks. */
403 struct oti_req_ack_lock {
404 struct lustre_handle lock;
408 struct llog_cookie oti_onecookie;
409 struct llog_cookie *oti_logcookies;
413 static inline void oti_alloc_cookies(struct obd_trans_info *oti,int num_cookies)
418 if (num_cookies == 1)
419 oti->oti_logcookies = &oti->oti_onecookie;
421 OBD_ALLOC(oti->oti_logcookies,
422 num_cookies * sizeof(oti->oti_onecookie));
424 oti->oti_numcookies = num_cookies;
427 static inline void oti_free_cookies(struct obd_trans_info *oti)
429 if (!oti || !oti->oti_logcookies)
432 if (oti->oti_logcookies == &oti->oti_onecookie)
433 LASSERT(oti->oti_numcookies == 1);
435 OBD_FREE(oti->oti_logcookies,
436 oti->oti_numcookies * sizeof(oti->oti_onecookie));
437 oti->oti_logcookies = NULL;
438 oti->oti_numcookies = 0;
443 LLOG_CONFIG_ORIG_CTXT = 0,
444 LLOG_CONFIG_REPL_CTXT = 1,
445 LLOG_UNLINK_ORIG_CTXT = 2,
446 LLOG_UNLINK_REPL_CTXT = 3,
447 LLOG_SIZE_ORIG_CTXT = 4,
448 LLOG_SIZE_REPL_CTXT = 5,
449 LLOG_MD_ORIG_CTXT = 6,
450 LLOG_MD_REPL_CTXT = 7,
451 LLOG_RD1_ORIG_CTXT = 8,
452 LLOG_RD1_REPL_CTXT = 9,
453 LLOG_TEST_ORIG_CTXT = 10,
454 LLOG_TEST_REPL_CTXT = 11,
459 /* corresponds to one of the obd's */
461 struct obd_type *obd_type;
463 /* common and UUID name of this device */
465 struct obd_uuid obd_uuid;
468 int obd_attached:1, obd_set_up:1, obd_recovering:1,
469 obd_abort_recovery:1, obd_replayable:1, obd_no_transno:1,
470 obd_no_recov:1, obd_stopping:1;
471 atomic_t obd_refcount;
472 wait_queue_head_t obd_refcount_waitq;
473 struct proc_dir_entry *obd_proc_entry;
474 struct list_head obd_exports;
476 struct ldlm_namespace *obd_namespace;
477 struct ptlrpc_client obd_ldlm_client; /* XXX OST/MDS only */
478 /* a spinlock is OK for what we do now, may need a semaphore later */
479 spinlock_t obd_dev_lock;
480 __u64 obd_last_committed;
481 struct fsfilt_operations *obd_fsops;
482 spinlock_t obd_osfs_lock;
483 struct obd_statfs obd_osfs;
484 unsigned long obd_osfs_age;
485 struct obd_run_ctxt obd_ctxt;
486 struct llog_ctxt *obd_llog_ctxt[LLOG_MAX_CTXTS];
487 struct obd_device *obd_observer;
488 struct obd_export *obd_self_export;
490 /* XXX encapsulate all this recovery data into one struct */
491 svc_handler_t obd_recovery_handler;
492 int obd_max_recoverable_clients;
493 int obd_connected_clients;
494 int obd_recoverable_clients;
495 spinlock_t obd_processing_task_lock;
496 pid_t obd_processing_task;
497 __u64 obd_next_recovery_transno;
498 int obd_replayed_requests;
499 int obd_requests_queued_for_recovery;
500 wait_queue_head_t obd_next_transno_waitq;
501 struct list_head obd_uncommitted_replies;
502 spinlock_t obd_uncommitted_replies_lock;
503 struct timer_list obd_recovery_timer;
504 struct list_head obd_recovery_queue;
505 struct list_head obd_delayed_reply_queue;
508 struct filter_obd filter;
510 struct client_obd cli;
512 struct echo_client_obd echo_client;
513 struct echo_obd echo;
514 struct recovd_obd recovd;
516 struct cache_obd cobd;
517 struct ptlbd_obd ptlbd;
518 struct mgmtcli_obd mgmtcli;
520 /* Fields used by LProcFS */
521 unsigned int obd_cntr_base;
522 struct lprocfs_stats *obd_stats;
523 struct proc_dir_entry *obd_svc_procroot;
524 struct lprocfs_stats *obd_svc_stats;
527 #define OBD_OPT_FORCE 0x0001
528 #define OBD_OPT_FAILOVER 0x0002
530 #define OBD_LLOG_FL_SENDNOW 0x0001
533 struct module *o_owner;
534 int (*o_iocontrol)(unsigned int cmd, struct obd_export *exp, int len,
535 void *karg, void *uarg);
536 int (*o_get_info)(struct obd_export *, __u32 keylen, void *key,
537 __u32 *vallen, void *val);
538 int (*o_set_info)(struct obd_export *, __u32 keylen, void *key,
539 __u32 vallen, void *val);
540 int (*o_attach)(struct obd_device *dev, obd_count len, void *data);
541 int (*o_detach)(struct obd_device *dev);
542 int (*o_setup) (struct obd_device *dev, obd_count len, void *data);
543 int (*o_precleanup)(struct obd_device *dev, int flags);
544 int (*o_cleanup)(struct obd_device *dev, int flags);
545 int (*o_postrecov)(struct obd_device *dev);
546 int (*o_connect)(struct lustre_handle *conn, struct obd_device *src,
547 struct obd_uuid *cluuid);
548 int (*o_disconnect)(struct obd_export *exp, int flags);
550 int (*o_statfs)(struct obd_device *obd, struct obd_statfs *osfs,
551 unsigned long max_age);
552 int (*o_packmd)(struct obd_export *exp, struct lov_mds_md **disk_tgt,
553 struct lov_stripe_md *mem_src);
554 int (*o_unpackmd)(struct obd_export *exp,struct lov_stripe_md **mem_tgt,
555 struct lov_mds_md *disk_src, int disk_len);
556 int (*o_preallocate)(struct lustre_handle *, obd_count *req,
558 int (*o_create)(struct obd_export *exp, struct obdo *oa,
559 struct lov_stripe_md **ea, struct obd_trans_info *oti);
560 int (*o_destroy)(struct obd_export *exp, struct obdo *oa,
561 struct lov_stripe_md *ea, struct obd_trans_info *oti);
562 int (*o_setattr)(struct obd_export *exp, struct obdo *oa,
563 struct lov_stripe_md *ea, struct obd_trans_info *oti);
564 int (*o_getattr)(struct obd_export *exp, struct obdo *oa,
565 struct lov_stripe_md *ea);
566 int (*o_getattr_async)(struct obd_export *exp, struct obdo *oa,
567 struct lov_stripe_md *ea,
568 struct ptlrpc_request_set *set);
569 int (*o_brw)(int rw, struct obd_export *exp, struct obdo *oa,
570 struct lov_stripe_md *ea, obd_count oa_bufs,
571 struct brw_page *pgarr, struct obd_trans_info *oti);
572 int (*o_brw_async)(int rw, struct obd_export *exp, struct obdo *oa,
573 struct lov_stripe_md *ea, obd_count oa_bufs,
574 struct brw_page *pgarr, struct ptlrpc_request_set *,
575 struct obd_trans_info *oti);
576 int (*o_prep_async_page)(struct obd_export *exp,
577 struct lov_stripe_md *lsm,
578 struct lov_oinfo *loi,
579 struct page *page, obd_off offset,
580 struct obd_async_page_ops *ops, void *data,
582 int (*o_queue_async_io)(struct obd_export *exp,
583 struct lov_stripe_md *lsm,
584 struct lov_oinfo *loi, void *cookie,
585 int cmd, obd_off off, int count,
586 obd_flag brw_flags, obd_flag async_flags);
587 int (*o_queue_group_io)(struct obd_export *exp,
588 struct lov_stripe_md *lsm,
589 struct lov_oinfo *loi,
590 struct obd_io_group *oig,
591 void *cookie, int cmd, obd_off off, int count,
592 obd_flag brw_flags, obd_flag async_flags);
593 int (*o_trigger_group_io)(struct obd_export *exp,
594 struct lov_stripe_md *lsm,
595 struct lov_oinfo *loi,
596 struct obd_io_group *oig);
597 int (*o_set_async_flags)(struct obd_export *exp,
598 struct lov_stripe_md *lsm,
599 struct lov_oinfo *loi, void *cookie,
600 obd_flag async_flags);
601 int (*o_teardown_async_page)(struct obd_export *exp,
602 struct lov_stripe_md *lsm,
603 struct lov_oinfo *loi, void *cookie);
604 int (*o_punch)(struct obd_export *exp, struct obdo *oa,
605 struct lov_stripe_md *ea, obd_size start,
606 obd_size end, struct obd_trans_info *oti);
607 int (*o_sync)(struct obd_export *exp, struct obdo *oa,
608 struct lov_stripe_md *ea, obd_size start, obd_size end);
609 int (*o_migrate)(struct lustre_handle *conn, struct lov_stripe_md *dst,
610 struct lov_stripe_md *src, obd_size start,
611 obd_size end, struct obd_trans_info *oti);
612 int (*o_copy)(struct lustre_handle *dstconn, struct lov_stripe_md *dst,
613 struct lustre_handle *srconn, struct lov_stripe_md *src,
614 obd_size start, obd_size end, struct obd_trans_info *);
615 int (*o_iterate)(struct lustre_handle *conn,
616 int (*)(obd_id, obd_gr, void *),
617 obd_id *startid, obd_gr group, void *data);
618 int (*o_preprw)(int cmd, struct obd_export *exp, struct obdo *oa,
619 int objcount, struct obd_ioobj *obj,
620 int niocount, struct niobuf_remote *remote,
621 struct niobuf_local *local, struct obd_trans_info *oti);
622 int (*o_commitrw)(int cmd, struct obd_export *exp, struct obdo *oa,
623 int objcount, struct obd_ioobj *obj,
624 int niocount, struct niobuf_local *local,
625 struct obd_trans_info *oti, int rc);
626 int (*o_enqueue)(struct obd_export *, struct lov_stripe_md *,
627 __u32 type, ldlm_policy_data_t *, __u32 mode,
628 int *flags, void *bl_cb, void *cp_cb, void *gl_cb,
629 void *data, __u32 lvb_len, void *lvb_swabber,
630 struct lustre_handle *lockh);
631 int (*o_match)(struct obd_export *, struct lov_stripe_md *, __u32 type,
632 ldlm_policy_data_t *, __u32 mode, int *flags, void *data,
633 struct lustre_handle *lockh);
634 int (*o_change_cbdata)(struct obd_export *, struct lov_stripe_md *,
635 ldlm_iterator_t it, void *data);
636 int (*o_cancel)(struct obd_export *, struct lov_stripe_md *md,
637 __u32 mode, struct lustre_handle *);
638 int (*o_cancel_unused)(struct obd_export *, struct lov_stripe_md *,
639 int flags, void *opaque);
640 int (*o_san_preprw)(int cmd, struct obd_export *exp,
641 struct obdo *oa, int objcount,
642 struct obd_ioobj *obj, int niocount,
643 struct niobuf_remote *remote);
644 int (*o_init_export)(struct obd_export *exp);
645 int (*o_destroy_export)(struct obd_export *exp);
647 /* llog related obd_methods */
648 int (*o_llog_init)(struct obd_device *obd, struct obd_device *disk_obd,
649 int count, struct llog_catid *logid);
650 int (*o_llog_finish)(struct obd_device *obd, int count);
652 /* metadata-only methods */
653 int (*o_pin)(struct obd_export *, obd_id ino, __u32 gen, int type,
654 struct obd_client_handle *, int flag);
655 int (*o_unpin)(struct obd_export *, struct obd_client_handle *, int);
657 int (*o_import_event)(struct obd_device *, struct obd_import *,
658 enum obd_import_event);
660 int (*o_notify)(struct obd_device *obd, struct obd_device *watched,
663 * NOTE: If adding ops, add another LPROCFS_OBD_OP_INIT() line
664 * to lprocfs_alloc_obd_stats() in obdclass/lprocfs_status.c.
665 * Also, add a wrapper function in include/linux/obd_class.h.
670 static inline void obd_transno_commit_cb(struct obd_device *obd, __u64 transno,
674 CERROR("%s: transno "LPD64" commit error: %d\n",
675 obd->obd_name, transno, error);
678 CDEBUG(D_HA, "%s: transno "LPD64" committed\n",
679 obd->obd_name, transno);
680 if (transno > obd->obd_last_committed) {
681 obd->obd_last_committed = transno;
682 ptlrpc_commit_replies (obd);