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_MAX_NR 50
24 # include <linux/fs.h>
25 # include <linux/list.h>
26 # include <linux/sched.h> /* for struct task_struct, for current.h */
27 # include <asm/current.h> /* for smp_lock.h */
28 # include <linux/smp_lock.h>
29 # include <linux/proc_fs.h>
30 # include <linux/mount.h>
33 #include <linux/lustre_lib.h>
34 #include <linux/lustre_idl.h>
35 #include <linux/lustre_export.h>
37 /* this is really local to the OSC */
38 struct loi_oap_pages {
39 struct list_head lop_pending;
41 struct list_head lop_urgent;
42 struct list_head lop_pending_group;
45 struct lov_oinfo { /* per-stripe data structure */
46 __u64 loi_id; /* object ID on the target OST */
47 __u64 loi_gr; /* object group on the target OST */
48 int loi_ost_idx; /* OST stripe index in lov_tgt_desc->tgts */
49 int loi_ost_gen; /* generation of this loi_ost_idx */
51 /* used by the osc to keep track of what objects to build into rpcs */
52 struct loi_oap_pages loi_read_lop;
53 struct loi_oap_pages loi_write_lop;
54 /* _cli_ is poorly named, it should be _ready_ */
55 struct list_head loi_cli_item;
56 struct list_head loi_write_item;
57 struct list_head loi_read_item;
60 __u64 loi_kms; /* known minimum size */
61 __u64 loi_rss; /* recently seen size */
62 __u64 loi_mtime; /* recently seen mtime */
65 static inline void loi_init(struct lov_oinfo *loi)
67 INIT_LIST_HEAD(&loi->loi_read_lop.lop_pending);
68 INIT_LIST_HEAD(&loi->loi_read_lop.lop_urgent);
69 INIT_LIST_HEAD(&loi->loi_read_lop.lop_pending_group);
70 INIT_LIST_HEAD(&loi->loi_write_lop.lop_pending);
71 INIT_LIST_HEAD(&loi->loi_write_lop.lop_urgent);
72 INIT_LIST_HEAD(&loi->loi_write_lop.lop_pending_group);
73 INIT_LIST_HEAD(&loi->loi_cli_item);
74 INIT_LIST_HEAD(&loi->loi_write_item);
75 INIT_LIST_HEAD(&loi->loi_read_item);
78 struct lov_stripe_md {
80 __u64 lsm_object_id; /* lov object id */
81 __u64 lsm_object_gr; /* lov object id */
82 __u64 lsm_maxbytes; /* maximum possible file size */
83 unsigned long lsm_xfersize; /* optimal transfer size */
85 /* LOV-private members start here -- only for use in lov/. */
87 __u32 lsm_stripe_size; /* size of the stripe */
88 __u32 lsm_pattern; /* striping pattern (RAID0, RAID1) */
89 unsigned lsm_stripe_count; /* number of objects being striped over */
90 struct lov_oinfo lsm_oinfo[0];
94 struct list_head typ_chain;
95 struct obd_ops *typ_ops;
96 struct md_ops *typ_md_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;
162 #define FILTER_SUBDIR_COUNT 32 /* set to zero for no subdirs */
164 #define FILTER_GROUP_LLOG 1
165 #define FILTER_GROUP_ECHO 2
166 #define FILTER_GROUP_FIRST_MDS 3
168 struct filter_subdirs {
169 struct dentry *dentry[FILTER_SUBDIR_COUNT];
172 struct filter_group_llog {
173 struct list_head list;
175 struct obd_llogs *llogs;
179 const char *fo_fstype;
180 struct super_block *fo_sb;
181 struct vfsmount *fo_vfsmnt;
184 struct dentry *fo_dentry_O; /* the "O"bject directory dentry */
185 struct dentry **fo_groups; /* dentries for each group dir */
186 struct filter_subdirs *fo_subdirs; /* subdir array per group */
187 __u64 *fo_last_objids; // per-group last created objid
188 struct file **fo_last_objid_files;
190 spinlock_t fo_objidlock; /* protect fo_lastobjid increment */
191 spinlock_t fo_translock; /* protect fsd_last_rcvd increment */
192 struct file *fo_rcvd_filp;
193 struct filter_server_data *fo_fsd;
194 unsigned long *fo_last_rcvd_slots;
195 __u64 fo_mount_count;
197 struct file_operations *fo_fop;
198 struct inode_operations *fo_iop;
199 struct address_space_operations *fo_aops;
201 struct list_head fo_export_list;
204 obd_size fo_tot_dirty; /* protected by obd_osfs_lock */
205 obd_size fo_tot_granted; /* all values in bytes */
206 obd_size fo_tot_pending;
208 obd_size fo_readcache_max_filesize;
210 struct obd_import *fo_mdc_imp;
211 struct obd_uuid fo_mdc_uuid;
212 struct lustre_handle fo_mdc_conn;
214 struct semaphore fo_alloc_lock;
216 struct obd_histogram fo_r_pages;
217 struct obd_histogram fo_w_pages;
218 struct obd_histogram fo_r_discont_pages;
219 struct obd_histogram fo_w_discont_pages;
220 struct obd_histogram fo_r_discont_blocks;
221 struct obd_histogram fo_w_discont_blocks;
223 struct list_head fo_llog_list;
224 spinlock_t fo_llog_list_lock;
227 struct mds_server_data;
229 #define OSC_MAX_RIF_DEFAULT 4
230 #define OSC_MAX_RIF_MAX 32
231 #define OSC_MAX_DIRTY_DEFAULT 4
232 #define OSC_MAX_DIRTY_MB_MAX 256 /* totally arbitrary */
236 struct obd_import *cl_import;
237 struct semaphore cl_sem;
239 /* max_mds_easize is purely a performance thing so we don't have to
240 * call obd_size_wiremd() all the time. */
241 int cl_max_mds_easize;
242 int cl_max_mds_cookiesize;
245 //struct llog_canceld_ctxt *cl_llcd; /* it's included by obd_llog_ctxt */
246 void *cl_llcd_offset;
248 struct obd_device *cl_mgmtcli_obd;
250 /* the grant values are protected by loi_list_lock below */
251 long cl_dirty; /* all _dirty_ in bytes */
252 long cl_dirty_max; /* allowed w/o rpc */
253 long cl_avail_grant; /* bytes of credit for ost */
254 long cl_lost_grant; /* lost credits (trunc) */
255 struct list_head cl_cache_waiters; /* waiting for cache/grant */
257 /* keep track of objects that have lois that contain pages which
258 * have been queued for async brw. this lock also protects the
259 * lists of osc_client_pages that hang off of the loi */
260 spinlock_t cl_loi_list_lock;
261 struct list_head cl_loi_ready_list;
262 struct list_head cl_loi_write_list;
263 struct list_head cl_loi_read_list;
264 int cl_brw_in_flight;
265 /* just a sum of the loi/lop pending numbers to be exported by /proc */
266 int cl_pending_w_pages;
267 int cl_pending_r_pages;
268 int cl_max_pages_per_rpc;
269 int cl_max_rpcs_in_flight;
270 struct obd_histogram cl_read_rpc_hist;
271 struct obd_histogram cl_write_rpc_hist;
272 struct obd_histogram cl_read_page_hist;
273 struct obd_histogram cl_write_page_hist;
275 struct mdc_rpc_lock *cl_rpc_lock;
276 struct mdc_rpc_lock *cl_setattr_lock;
277 struct osc_creator cl_oscc;
280 /* Like a client, with some hangers-on. Keep mc_client_obd first so that we
281 * can reuse the various client setup/connect functions. */
283 struct client_obd mc_client_obd; /* nested */
284 struct ptlrpc_thread *mc_ping_thread;
285 struct obd_export *mc_ping_exp; /* XXX single-target */
286 struct list_head mc_registered;
290 #define mc_import mc_client_obd.cl_import
293 struct ptlrpc_service *mds_service;
294 struct ptlrpc_service *mds_setattr_service;
295 struct ptlrpc_service *mds_readpage_service;
296 struct super_block *mds_sb;
297 struct vfsmount *mds_vfsmnt;
298 struct dentry *mds_fid_de;
300 int mds_max_cookiesize;
301 struct file *mds_rcvd_filp;
302 spinlock_t mds_transno_lock;
303 __u64 mds_last_transno;
304 __u64 mds_mount_count;
306 struct semaphore mds_epoch_sem;
307 struct ll_fid mds_rootfid;
308 struct mds_server_data *mds_server_data;
309 struct dentry *mds_pending_dir;
310 struct dentry *mds_logs_dir;
311 struct dentry *mds_objects_dir;
312 struct llog_handle *mds_cfg_llh;
313 // struct llog_handle *mds_catalog;
314 struct obd_device *mds_osc_obd; /* XXX lov_obd */
315 struct obd_uuid mds_lov_uuid;
317 struct obd_export *mds_osc_exp; /* XXX lov_exp */
318 int mds_has_lov_desc;
319 struct lov_desc mds_lov_desc;
320 obd_id *mds_lov_objids;
321 int mds_lov_objids_valid;
322 int mds_lov_nextid_set;
323 struct file *mds_lov_objid_filp;
324 unsigned long *mds_client_bitmap;
325 struct semaphore mds_orphan_recovery_sem;
327 atomic_t mds_open_count;
330 int mds_num; /* number in cluster */
331 struct obd_device *mds_lmv_obd; /* XXX lmv_obd */
332 struct obd_export *mds_lmv_exp; /* XXX lov_exp */
333 struct ptlrpc_service *mds_create_service;
334 atomic_t mds_real_clients;
335 struct obd_uuid mds_lmv_uuid;
336 struct dentry *mds_fids_dir;
353 * this struct does double-duty acting as either a client or
354 * server instance .. maybe not wise.
358 struct ptlrpc_service *ptlbd_service;
361 struct ptlrpc_client bd_client;
362 struct obd_import *bd_import;
363 struct obd_uuid bd_server_uuid;
364 struct obd_export *bd_exp;
365 int refcount; /* XXX sigh */
369 spinlock_t recovd_lock;
370 struct list_head recovd_managed_items; /* items managed */
371 struct list_head recovd_troubled_items; /* items in recovery */
373 wait_queue_head_t recovd_recovery_waitq;
374 wait_queue_head_t recovd_ctl_waitq;
375 wait_queue_head_t recovd_waitq;
376 struct task_struct *recovd_thread;
381 struct ptlrpc_service *ost_service;
382 struct ptlrpc_service *ost_create_service;
385 struct echo_client_obd {
386 struct obd_export *ec_exp; /* the local connection to osc/lov */
388 struct list_head ec_objects;
394 struct obd_export *cobd_target_exp;/* local connection to target obd */
395 struct obd_export *cobd_cache_exp; /* local connection to cache obd */
398 struct lov_tgt_desc {
399 struct obd_uuid uuid;
400 struct obd_export *ltd_exp;
401 int active; /* is this target up for requests */
406 struct lov_desc desc;
409 int lo_catalog_loaded:1;
410 struct lov_tgt_desc *tgts;
413 struct lmv_tgt_desc {
414 struct obd_uuid uuid;
415 struct obd_export *exp;
422 struct lmv_tgt_desc *tgts;
423 struct obd_uuid cluuid;
424 struct obd_export *exp;
430 struct niobuf_local {
435 struct dentry *dentry;
441 /* Don't conflict with on-wire flags OBD_BRW_WRITE, etc */
442 #define N_LOCAL_TEMP_PAGE 0x10000000
444 struct obd_trans_info {
447 /* Only used on the server side for tracking acks. */
448 struct oti_req_ack_lock {
449 struct lustre_handle lock;
453 struct llog_cookie oti_onecookie;
454 struct llog_cookie *oti_logcookies;
458 static inline void oti_alloc_cookies(struct obd_trans_info *oti,int num_cookies)
463 if (num_cookies == 1)
464 oti->oti_logcookies = &oti->oti_onecookie;
466 OBD_ALLOC(oti->oti_logcookies,
467 num_cookies * sizeof(oti->oti_onecookie));
469 oti->oti_numcookies = num_cookies;
472 static inline void oti_free_cookies(struct obd_trans_info *oti)
474 if (!oti || !oti->oti_logcookies)
477 if (oti->oti_logcookies == &oti->oti_onecookie)
478 LASSERT(oti->oti_numcookies == 1);
480 OBD_FREE(oti->oti_logcookies,
481 oti->oti_numcookies * sizeof(oti->oti_onecookie));
482 oti->oti_logcookies = NULL;
483 oti->oti_numcookies = 0;
488 LLOG_CONFIG_ORIG_CTXT = 0,
489 LLOG_CONFIG_REPL_CTXT = 1,
490 LLOG_UNLINK_ORIG_CTXT = 2,
491 LLOG_UNLINK_REPL_CTXT = 3,
492 LLOG_SIZE_ORIG_CTXT = 4,
493 LLOG_SIZE_REPL_CTXT = 5,
494 LLOG_MD_ORIG_CTXT = 6,
495 LLOG_MD_REPL_CTXT = 7,
496 LLOG_RD1_ORIG_CTXT = 8,
497 LLOG_RD1_REPL_CTXT = 9,
498 LLOG_TEST_ORIG_CTXT = 10,
499 LLOG_TEST_REPL_CTXT = 11,
504 struct llog_ctxt *llog_ctxt[LLOG_MAX_CTXTS];
507 /* corresponds to one of the obd's */
509 struct obd_type *obd_type;
511 /* common and UUID name of this device */
513 struct obd_uuid obd_uuid;
516 int obd_attached:1, obd_set_up:1, obd_recovering:1,
517 obd_abort_recovery:1, obd_replayable:1, obd_no_transno:1,
518 obd_no_recov:1, obd_stopping:1;
519 atomic_t obd_refcount;
520 wait_queue_head_t obd_refcount_waitq;
521 struct proc_dir_entry *obd_proc_entry;
522 struct list_head obd_exports;
524 struct ldlm_namespace *obd_namespace;
525 struct ptlrpc_client obd_ldlm_client; /* XXX OST/MDS only */
526 /* a spinlock is OK for what we do now, may need a semaphore later */
527 spinlock_t obd_dev_lock;
528 __u64 obd_last_committed;
529 struct fsfilt_operations *obd_fsops;
530 spinlock_t obd_osfs_lock;
531 struct obd_statfs obd_osfs;
532 unsigned long obd_osfs_age;
533 struct obd_run_ctxt obd_ctxt;
534 struct obd_llogs obd_llogs;
535 struct obd_device *obd_observer;
536 struct obd_export *obd_self_export;
538 /* XXX encapsulate all this recovery data into one struct */
539 svc_handler_t obd_recovery_handler;
540 int obd_max_recoverable_clients;
541 int obd_connected_clients;
542 int obd_recoverable_clients;
543 spinlock_t obd_processing_task_lock;
544 pid_t obd_processing_task;
545 __u64 obd_next_recovery_transno;
546 int obd_replayed_requests;
547 int obd_requests_queued_for_recovery;
548 wait_queue_head_t obd_next_transno_waitq;
549 struct list_head obd_uncommitted_replies;
550 spinlock_t obd_uncommitted_replies_lock;
551 struct timer_list obd_recovery_timer;
552 struct list_head obd_recovery_queue;
553 struct list_head obd_delayed_reply_queue;
556 struct filter_obd filter;
558 struct client_obd cli;
560 struct echo_client_obd echo_client;
561 struct echo_obd echo;
562 struct recovd_obd recovd;
564 struct cache_obd cobd;
565 struct ptlbd_obd ptlbd;
566 struct mgmtcli_obd mgmtcli;
569 /* Fields used by LProcFS */
570 unsigned int obd_cntr_base;
571 struct lprocfs_stats *obd_stats;
572 struct proc_dir_entry *obd_svc_procroot;
573 struct lprocfs_stats *obd_svc_stats;
576 #define OBD_OPT_FORCE 0x0001
577 #define OBD_OPT_FAILOVER 0x0002
578 #define OBD_OPT_REAL_CLIENT 0x0004
580 #define OBD_LLOG_FL_SENDNOW 0x0001
585 struct module *o_owner;
586 int (*o_iocontrol)(unsigned int cmd, struct obd_export *exp, int len,
587 void *karg, void *uarg);
588 int (*o_get_info)(struct obd_export *, __u32 keylen, void *key,
589 __u32 *vallen, void *val);
590 int (*o_set_info)(struct obd_export *, __u32 keylen, void *key,
591 __u32 vallen, void *val);
592 int (*o_attach)(struct obd_device *dev, obd_count len, void *data);
593 int (*o_detach)(struct obd_device *dev);
594 int (*o_setup) (struct obd_device *dev, obd_count len, void *data);
595 int (*o_precleanup)(struct obd_device *dev, int flags);
596 int (*o_cleanup)(struct obd_device *dev, int flags);
597 int (*o_postrecov)(struct obd_device *dev);
598 int (*o_connect)(struct lustre_handle *conn, struct obd_device *src,
599 struct obd_uuid *cluuid);
600 int (*o_disconnect)(struct obd_export *exp, int flags);
602 int (*o_statfs)(struct obd_device *obd, struct obd_statfs *osfs,
603 unsigned long max_age);
604 int (*o_packmd)(struct obd_export *exp, struct lov_mds_md **disk_tgt,
605 struct lov_stripe_md *mem_src);
606 int (*o_unpackmd)(struct obd_export *exp,struct lov_stripe_md **mem_tgt,
607 struct lov_mds_md *disk_src, int disk_len);
608 int (*o_preallocate)(struct lustre_handle *, obd_count *req,
610 int (*o_create)(struct obd_export *exp, struct obdo *oa,
611 struct lov_stripe_md **ea, struct obd_trans_info *oti);
612 int (*o_destroy)(struct obd_export *exp, struct obdo *oa,
613 struct lov_stripe_md *ea, struct obd_trans_info *oti);
614 int (*o_setattr)(struct obd_export *exp, struct obdo *oa,
615 struct lov_stripe_md *ea, struct obd_trans_info *oti);
616 int (*o_getattr)(struct obd_export *exp, struct obdo *oa,
617 struct lov_stripe_md *ea);
618 int (*o_getattr_async)(struct obd_export *exp, struct obdo *oa,
619 struct lov_stripe_md *ea,
620 struct ptlrpc_request_set *set);
621 int (*o_brw)(int rw, struct obd_export *exp, struct obdo *oa,
622 struct lov_stripe_md *ea, obd_count oa_bufs,
623 struct brw_page *pgarr, struct obd_trans_info *oti);
624 int (*o_brw_async)(int rw, struct obd_export *exp, struct obdo *oa,
625 struct lov_stripe_md *ea, obd_count oa_bufs,
626 struct brw_page *pgarr, struct ptlrpc_request_set *,
627 struct obd_trans_info *oti);
628 int (*o_prep_async_page)(struct obd_export *exp,
629 struct lov_stripe_md *lsm,
630 struct lov_oinfo *loi,
631 struct page *page, obd_off offset,
632 struct obd_async_page_ops *ops, void *data,
634 int (*o_queue_async_io)(struct obd_export *exp,
635 struct lov_stripe_md *lsm,
636 struct lov_oinfo *loi, void *cookie,
637 int cmd, obd_off off, int count,
638 obd_flag brw_flags, obd_flag async_flags);
639 int (*o_queue_group_io)(struct obd_export *exp,
640 struct lov_stripe_md *lsm,
641 struct lov_oinfo *loi,
642 struct obd_io_group *oig,
643 void *cookie, int cmd, obd_off off, int count,
644 obd_flag brw_flags, obd_flag async_flags);
645 int (*o_trigger_group_io)(struct obd_export *exp,
646 struct lov_stripe_md *lsm,
647 struct lov_oinfo *loi,
648 struct obd_io_group *oig);
649 int (*o_set_async_flags)(struct obd_export *exp,
650 struct lov_stripe_md *lsm,
651 struct lov_oinfo *loi, void *cookie,
652 obd_flag async_flags);
653 int (*o_teardown_async_page)(struct obd_export *exp,
654 struct lov_stripe_md *lsm,
655 struct lov_oinfo *loi, void *cookie);
656 int (*o_punch)(struct obd_export *exp, struct obdo *oa,
657 struct lov_stripe_md *ea, obd_size start,
658 obd_size end, struct obd_trans_info *oti);
659 int (*o_sync)(struct obd_export *exp, struct obdo *oa,
660 struct lov_stripe_md *ea, obd_size start, obd_size end);
661 int (*o_migrate)(struct lustre_handle *conn, struct lov_stripe_md *dst,
662 struct lov_stripe_md *src, obd_size start,
663 obd_size end, struct obd_trans_info *oti);
664 int (*o_copy)(struct lustre_handle *dstconn, struct lov_stripe_md *dst,
665 struct lustre_handle *srconn, struct lov_stripe_md *src,
666 obd_size start, obd_size end, struct obd_trans_info *);
667 int (*o_iterate)(struct lustre_handle *conn,
668 int (*)(obd_id, obd_gr, void *),
669 obd_id *startid, obd_gr group, void *data);
670 int (*o_preprw)(int cmd, struct obd_export *exp, struct obdo *oa,
671 int objcount, struct obd_ioobj *obj,
672 int niocount, struct niobuf_remote *remote,
673 struct niobuf_local *local, struct obd_trans_info *oti);
674 int (*o_commitrw)(int cmd, struct obd_export *exp, struct obdo *oa,
675 int objcount, struct obd_ioobj *obj,
676 int niocount, struct niobuf_local *local,
677 struct obd_trans_info *oti, int rc);
678 int (*o_enqueue)(struct obd_export *, struct lov_stripe_md *,
679 __u32 type, ldlm_policy_data_t *, __u32 mode,
680 int *flags, void *bl_cb, void *cp_cb, void *gl_cb,
681 void *data, __u32 lvb_len, void *lvb_swabber,
682 struct lustre_handle *lockh);
683 int (*o_match)(struct obd_export *, struct lov_stripe_md *, __u32 type,
684 ldlm_policy_data_t *, __u32 mode, int *flags, void *data,
685 struct lustre_handle *lockh);
686 int (*o_change_cbdata)(struct obd_export *, struct lov_stripe_md *,
687 ldlm_iterator_t it, void *data);
688 int (*o_cancel)(struct obd_export *, struct lov_stripe_md *md,
689 __u32 mode, struct lustre_handle *);
690 int (*o_cancel_unused)(struct obd_export *, struct lov_stripe_md *,
691 int flags, void *opaque);
692 int (*o_san_preprw)(int cmd, struct obd_export *exp,
693 struct obdo *oa, int objcount,
694 struct obd_ioobj *obj, int niocount,
695 struct niobuf_remote *remote);
696 int (*o_init_export)(struct obd_export *exp);
697 int (*o_destroy_export)(struct obd_export *exp);
699 /* llog related obd_methods */
700 int (*o_llog_init)(struct obd_device *, struct obd_llogs *,
701 struct obd_device *, int, struct llog_catid *);
702 int (*o_llog_finish)(struct obd_device *, struct obd_llogs *, int);
703 int (*o_llog_connect)(struct obd_device *, struct llogd_conn_body *);
705 /* metadata-only methods */
706 int (*o_pin)(struct obd_export *, obd_id ino, __u32 gen, int type,
707 struct obd_client_handle *, int flag);
708 int (*o_unpin)(struct obd_export *, struct obd_client_handle *, int);
710 int (*o_import_event)(struct obd_device *, struct obd_import *,
711 enum obd_import_event);
713 int (*o_notify)(struct obd_device *obd, struct obd_device *watched,
715 int (*o_init_ea_size)(struct obd_export *, int, int);
718 * NOTE: If adding ops, add another LPROCFS_OBD_OP_INIT() line
719 * to lprocfs_alloc_obd_stats() in obdclass/lprocfs_status.c.
720 * Also, add a wrapper function in include/linux/obd_class.h.
727 int (*m_getstatus)(struct obd_export *, struct ll_fid *);
728 int (*m_change_cbdata)(struct obd_export *, struct ll_fid *,
729 ldlm_iterator_t, void *);
730 int (*m_change_cbdata_name)(struct obd_export *, struct ll_fid *,
731 char *, int, struct ll_fid *,
732 ldlm_iterator_t, void *);
733 int (*m_close)(struct obd_export *, struct obdo *,
734 struct obd_client_handle *,
735 struct ptlrpc_request **);
736 int (*m_create)(struct obd_export *, struct mdc_op_data *,
737 const void *, int, int, __u32, __u32,
738 __u64, struct ptlrpc_request **);
739 int (*m_done_writing)(struct obd_export *, struct obdo *);
740 int (*m_enqueue)(struct obd_export *, int, struct lookup_intent *,
741 int, struct mdc_op_data *, struct lustre_handle *,
742 void *, int, ldlm_completion_callback,
743 ldlm_blocking_callback, void *);
744 int (*m_getattr)(struct obd_export *, struct ll_fid *,
745 unsigned long, unsigned int,
746 struct ptlrpc_request **);
747 int (*m_getattr_name)(struct obd_export *, struct ll_fid *,
748 char *, int, unsigned long,
749 unsigned int, struct ptlrpc_request **);
750 int (*m_intent_lock)(struct obd_export *, struct ll_uctxt *,
751 struct ll_fid *, const char *, int,
752 void *, int, struct ll_fid *,
753 struct lookup_intent *, int,
754 struct ptlrpc_request **,
755 ldlm_blocking_callback);
756 int (*m_link)(struct obd_export *, struct mdc_op_data *,
757 struct ptlrpc_request **);
758 int (*m_rename)(struct obd_export *, struct mdc_op_data *,
759 const char *, int, const char *, int,
760 struct ptlrpc_request **);
761 int (*m_setattr)(struct obd_export *, struct mdc_op_data *,
762 struct iattr *, void *, int , void *, int,
763 struct ptlrpc_request **);
764 int (*m_sync)(struct obd_export *, struct ll_fid *,
765 struct ptlrpc_request **);
766 int (*m_readpage)(struct obd_export *, struct ll_fid *,
767 __u64, struct page *, struct ptlrpc_request **);
768 int (*m_unlink)(struct obd_export *, struct mdc_op_data *,
769 struct ptlrpc_request **);
770 int (*m_valid_attrs)(struct obd_export *, struct ll_fid *);
771 struct obd_device * (*m_get_real_obd)(struct obd_export *,
772 char *name, int len);
775 static inline void obd_transno_commit_cb(struct obd_device *obd, __u64 transno,
779 CERROR("%s: transno "LPD64" commit error: %d\n",
780 obd->obd_name, transno, error);
783 CDEBUG(D_HA, "%s: transno "LPD64" committed\n",
784 obd->obd_name, transno);
785 if (transno > obd->obd_last_committed) {
786 obd->obd_last_committed = transno;
787 ptlrpc_commit_replies (obd);