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 /* Moved to lustre_user.h
22 #define IOC_MDC_GETSTRIPE _IOWR(IOC_MDC_TYPE, 21, struct lov_mds_md *) */
23 #define IOC_MDC_FINISH_GNS _IOWR(IOC_MDC_TYPE, 22, struct obd_device *)
24 #define IOC_MDC_MAX_NR 50
27 # include <linux/fs.h>
28 # include <linux/list.h>
29 # include <linux/sched.h> /* for struct task_struct, for current.h */
30 # include <asm/current.h> /* for smp_lock.h */
31 # include <linux/smp_lock.h>
32 # include <linux/proc_fs.h>
33 # include <linux/mount.h>
36 #include <linux/lvfs.h>
37 #include <linux/lustre_lib.h>
38 #include <linux/lustre_idl.h>
39 #include <linux/lustre_export.h>
41 /* this is really local to the OSC */
42 struct loi_oap_pages {
43 struct list_head lop_pending;
45 struct list_head lop_urgent;
46 struct list_head lop_pending_group;
49 struct lov_oinfo { /* per-stripe data structure */
50 __u64 loi_id; /* object ID on the target OST */
51 __u64 loi_gr; /* object group on the target OST */
52 int loi_ost_idx; /* OST stripe index in lov_tgt_desc->tgts */
53 int loi_ost_gen; /* generation of this loi_ost_idx */
55 /* used by the osc to keep track of what objects to build into rpcs */
56 struct loi_oap_pages loi_read_lop;
57 struct loi_oap_pages loi_write_lop;
58 /* _cli_ is poorly named, it should be _ready_ */
59 struct list_head loi_cli_item;
60 struct list_head loi_write_item;
61 struct list_head loi_read_item;
64 __u64 loi_kms; /* known minimum size */
65 __u64 loi_rss; /* recently seen size */
66 __u64 loi_mtime; /* recently seen mtime */
67 __u64 loi_blocks; /* recently seen blocks */
70 static inline void loi_init(struct lov_oinfo *loi)
72 INIT_LIST_HEAD(&loi->loi_read_lop.lop_pending);
73 INIT_LIST_HEAD(&loi->loi_read_lop.lop_urgent);
74 INIT_LIST_HEAD(&loi->loi_read_lop.lop_pending_group);
75 INIT_LIST_HEAD(&loi->loi_write_lop.lop_pending);
76 INIT_LIST_HEAD(&loi->loi_write_lop.lop_urgent);
77 INIT_LIST_HEAD(&loi->loi_write_lop.lop_pending_group);
78 INIT_LIST_HEAD(&loi->loi_cli_item);
79 INIT_LIST_HEAD(&loi->loi_write_item);
80 INIT_LIST_HEAD(&loi->loi_read_item);
83 struct lov_stripe_md {
85 __u64 lsm_object_id; /* lov object id */
86 __u64 lsm_object_gr; /* lov object id */
87 __u64 lsm_maxbytes; /* maximum possible file size */
88 unsigned long lsm_xfersize; /* optimal transfer size */
90 /* LOV-private members start here -- only for use in lov/. */
92 __u32 lsm_stripe_size; /* size of the stripe */
93 __u32 lsm_pattern; /* striping pattern (RAID0, RAID1) */
94 unsigned lsm_stripe_count; /* number of objects being striped over */
95 struct lov_oinfo lsm_oinfo[0];
99 struct list_head typ_chain;
100 struct obd_ops *typ_ops;
101 struct md_ops *typ_md_ops;
102 struct proc_dir_entry *typ_procroot;
115 ASYNC_READY = 0x1, /* ap_make_ready will not be called before this
116 page is added to an rpc */
118 ASYNC_COUNT_STABLE = 0x4, /* ap_refresh_count will not be called
119 to give the caller a chance to update
120 or cancel the size of the io */
121 ASYNC_GROUP_SYNC = 0x8, /* ap_completion will not be called, instead
122 the page is accounted for in the
123 obd_io_group given to
124 obd_queue_group_io */
127 struct obd_async_page_ops {
128 int (*ap_make_ready)(void *data, int cmd);
129 int (*ap_refresh_count)(void *data, int cmd);
130 void (*ap_fill_obdo)(void *data, int cmd, struct obdo *oa);
131 void (*ap_completion)(void *data, int cmd, struct obdo *oa, int rc);
134 /* the `oig' is passed down from a caller of obd rw methods. the callee
135 * records enough state such that the caller can sleep on the oig and
136 * be woken when all the callees have finished their work */
137 struct obd_io_group {
139 atomic_t oig_refcount;
142 struct list_head oig_occ_list;
143 wait_queue_head_t oig_waitq;
146 /* the oig callback context lets the callee of obd rw methods register
147 * for callbacks from the caller. */
148 struct oig_callback_context {
149 struct list_head occ_oig_item;
150 /* called when the caller has received a signal while sleeping.
151 * callees of this method are encouraged to abort their state
152 * in the oig. This may be called multiple times. */
153 void (*occ_interrupted)(struct oig_callback_context *occ);
156 /* if we find more consumers this could be generalized */
157 #define OBD_HIST_MAX 32
158 struct obd_histogram {
160 unsigned long oh_buckets[OBD_HIST_MAX];
163 struct ost_server_data;
165 #define FILTER_SUBDIR_COUNT 32 /* set to zero for no subdirs */
167 #define FILTER_GROUP_LLOG 1
168 #define FILTER_GROUP_ECHO 2
169 #define FILTER_GROUP_FIRST_MDS 3
171 struct filter_subdirs {
172 struct dentry *dentry[FILTER_SUBDIR_COUNT];
175 struct filter_group_llog {
176 struct list_head list;
178 struct obd_llogs *llogs;
182 const char *fo_fstype;
183 struct super_block *fo_sb;
184 struct vfsmount *fo_vfsmnt;
187 struct dentry *fo_dentry_O; /* the "O"bject directory dentry */
188 struct dentry **fo_groups; /* dentries for each group dir */
189 struct filter_subdirs *fo_subdirs; /* subdir array per group */
190 __u64 *fo_last_objids; // per-group last created objid
191 struct file **fo_last_objid_files;
193 spinlock_t fo_objidlock; /* protect fo_lastobjid increment */
194 spinlock_t fo_translock; /* protect fsd_last_rcvd increment */
195 struct file *fo_rcvd_filp;
196 struct filter_server_data *fo_fsd;
197 unsigned long *fo_last_rcvd_slots;
198 __u64 fo_mount_count;
200 unsigned int fo_destroy_in_progress:1;
201 struct semaphore fo_create_lock;
203 struct file_operations *fo_fop;
204 struct inode_operations *fo_iop;
205 struct address_space_operations *fo_aops;
207 struct list_head fo_export_list;
210 obd_size fo_tot_dirty; /* protected by obd_osfs_lock */
211 obd_size fo_tot_granted; /* all values in bytes */
212 obd_size fo_tot_pending;
214 obd_size fo_readcache_max_filesize;
216 struct obd_import *fo_mdc_imp;
217 struct obd_uuid fo_mdc_uuid;
218 struct lustre_handle fo_mdc_conn;
220 struct semaphore fo_alloc_lock;
222 struct obd_histogram fo_r_pages;
223 struct obd_histogram fo_w_pages;
224 struct obd_histogram fo_r_discont_pages;
225 struct obd_histogram fo_w_discont_pages;
226 struct obd_histogram fo_r_discont_blocks;
227 struct obd_histogram fo_w_discont_blocks;
229 struct list_head fo_llog_list;
230 spinlock_t fo_llog_list_lock;
233 struct mds_server_data;
235 #define OSC_MAX_RIF_DEFAULT 4
236 #define OSC_MAX_RIF_MAX 32
237 #define OSC_MAX_DIRTY_DEFAULT 4
238 #define OSC_MAX_DIRTY_MB_MAX 256 /* totally arbitrary */
242 struct obd_import *cl_import;
243 struct semaphore cl_sem;
245 /* max_mds_easize is purely a performance thing so we don't have to
246 * call obd_size_wiremd() all the time. */
247 int cl_max_mds_easize;
248 int cl_max_mds_cookiesize;
251 //struct llog_canceld_ctxt *cl_llcd; /* it's included by obd_llog_ctxt */
252 void *cl_llcd_offset;
254 struct obd_device *cl_mgmtcli_obd;
256 /* the grant values are protected by loi_list_lock below */
257 long cl_dirty; /* all _dirty_ in bytes */
258 long cl_dirty_max; /* allowed w/o rpc */
259 long cl_avail_grant; /* bytes of credit for ost */
260 long cl_lost_grant; /* lost credits (trunc) */
261 struct list_head cl_cache_waiters; /* waiting for cache/grant */
263 /* keep track of objects that have lois that contain pages which
264 * have been queued for async brw. this lock also protects the
265 * lists of osc_client_pages that hang off of the loi */
266 spinlock_t cl_loi_list_lock;
267 struct list_head cl_loi_ready_list;
268 struct list_head cl_loi_write_list;
269 struct list_head cl_loi_read_list;
270 int cl_brw_in_flight;
271 /* just a sum of the loi/lop pending numbers to be exported by /proc */
272 int cl_pending_w_pages;
273 int cl_pending_r_pages;
274 int cl_max_pages_per_rpc;
275 int cl_max_rpcs_in_flight;
276 struct obd_histogram cl_read_rpc_hist;
277 struct obd_histogram cl_write_rpc_hist;
278 struct obd_histogram cl_read_page_hist;
279 struct obd_histogram cl_write_page_hist;
281 struct mdc_rpc_lock *cl_rpc_lock;
282 struct mdc_rpc_lock *cl_setattr_lock;
283 struct osc_creator cl_oscc;
286 /* Like a client, with some hangers-on. Keep mc_client_obd first so that we
287 * can reuse the various client setup/connect functions. */
289 struct client_obd mc_client_obd; /* nested */
290 struct ptlrpc_thread *mc_ping_thread;
291 struct obd_export *mc_ping_exp; /* XXX single-target */
292 struct list_head mc_registered;
296 #define mc_import mc_client_obd.cl_import
299 struct ptlrpc_service *mds_service;
300 struct ptlrpc_service *mds_setattr_service;
301 struct ptlrpc_service *mds_readpage_service;
302 struct super_block *mds_sb;
303 struct vfsmount *mds_vfsmnt;
304 struct dentry *mds_fid_de;
306 int mds_max_cookiesize;
307 struct file *mds_rcvd_filp;
308 spinlock_t mds_transno_lock;
309 __u64 mds_last_transno;
310 __u64 mds_mount_count;
312 struct semaphore mds_epoch_sem;
313 struct ll_fid mds_rootfid;
314 struct mds_server_data *mds_server_data;
315 struct dentry *mds_pending_dir;
316 struct dentry *mds_logs_dir;
317 struct dentry *mds_objects_dir;
318 struct llog_handle *mds_cfg_llh;
319 // struct llog_handle *mds_catalog;
320 struct obd_device *mds_osc_obd; /* XXX lov_obd */
321 struct obd_uuid mds_lov_uuid;
323 struct obd_export *mds_osc_exp; /* XXX lov_exp */
324 int mds_has_lov_desc;
325 struct lov_desc mds_lov_desc;
326 obd_id *mds_lov_objids;
327 int mds_lov_objids_valid;
328 int mds_lov_nextid_set;
329 struct file *mds_lov_objid_filp;
330 unsigned long *mds_client_bitmap;
331 struct semaphore mds_orphan_recovery_sem;
332 /*add mds num here for real mds and cache mds create
333 FIXME later will be totally fixed by b_cmd*/
335 atomic_t mds_open_count;
336 int mds_config_version;
339 struct obd_device *mds_lmv_obd; /* XXX lmv_obd */
340 struct obd_export *mds_lmv_exp; /* XXX lov_exp */
341 struct ptlrpc_service *mds_create_service;
342 atomic_t mds_real_clients;
343 struct obd_uuid mds_lmv_uuid;
344 struct dentry *mds_fids_dir;
361 * this struct does double-duty acting as either a client or
362 * server instance .. maybe not wise.
366 struct ptlrpc_service *ptlbd_service;
369 struct ptlrpc_client bd_client;
370 struct obd_import *bd_import;
371 struct obd_uuid bd_server_uuid;
372 struct obd_export *bd_exp;
373 int refcount; /* XXX sigh */
377 spinlock_t recovd_lock;
378 struct list_head recovd_managed_items; /* items managed */
379 struct list_head recovd_troubled_items; /* items in recovery */
381 wait_queue_head_t recovd_recovery_waitq;
382 wait_queue_head_t recovd_ctl_waitq;
383 wait_queue_head_t recovd_waitq;
384 struct task_struct *recovd_thread;
389 struct ptlrpc_service *ost_service;
390 struct ptlrpc_service *ost_create_service;
393 struct echo_client_obd {
394 struct obd_export *ec_exp; /* the local connection to osc/lov */
396 struct list_head ec_objects;
402 struct obd_export *cobd_real_exp;/* local connection to target obd */
403 struct obd_export *cobd_cache_exp; /* local connection to cache obd */
408 struct lov_tgt_desc {
409 struct obd_uuid uuid;
411 struct obd_export *ltd_exp;
412 int active; /* is this target up for requests */
417 struct lov_desc desc;
420 int lo_catalog_loaded:1;
421 struct lov_tgt_desc *tgts;
424 struct lmv_tgt_desc {
425 struct obd_uuid uuid;
426 struct obd_export *ltd_exp;
427 int active; /* is this target up for requests */
432 struct lmv_desc desc;
435 struct lmv_tgt_desc *tgts;
436 struct obd_uuid cluuid;
437 struct obd_export *exp;
444 struct niobuf_local {
449 struct dentry *dentry;
454 struct cache_manager_obd {
455 struct obd_device *cm_master_obd; /* master lov */
456 struct obd_export *cm_master_exp;
457 struct obd_device *cm_cache_obd; /* cache obdfilter */
458 struct obd_export *cm_cache_exp;
459 int cm_master_group; /* master group*/
460 struct cmobd_write_service *cm_write_srv;
464 /* Don't conflict with on-wire flags OBD_BRW_WRITE, etc */
465 #define N_LOCAL_TEMP_PAGE 0x10000000
467 struct obd_trans_info {
470 /* Only used on the server side for tracking acks. */
471 struct oti_req_ack_lock {
472 struct lustre_handle lock;
476 struct llog_cookie oti_onecookie;
477 struct llog_cookie *oti_logcookies;
481 static inline void oti_alloc_cookies(struct obd_trans_info *oti,int num_cookies)
486 if (num_cookies == 1)
487 oti->oti_logcookies = &oti->oti_onecookie;
489 OBD_ALLOC(oti->oti_logcookies,
490 num_cookies * sizeof(oti->oti_onecookie));
492 oti->oti_numcookies = num_cookies;
495 static inline void oti_free_cookies(struct obd_trans_info *oti)
497 if (!oti || !oti->oti_logcookies)
500 if (oti->oti_logcookies == &oti->oti_onecookie)
501 LASSERT(oti->oti_numcookies == 1);
503 OBD_FREE(oti->oti_logcookies,
504 oti->oti_numcookies * sizeof(oti->oti_onecookie));
505 oti->oti_logcookies = NULL;
506 oti->oti_numcookies = 0;
511 LLOG_CONFIG_ORIG_CTXT = 0,
512 LLOG_CONFIG_REPL_CTXT = 1,
513 LLOG_UNLINK_ORIG_CTXT = 2,
514 LLOG_UNLINK_REPL_CTXT = 3,
515 LLOG_SIZE_ORIG_CTXT = 4,
516 LLOG_SIZE_REPL_CTXT = 5,
517 LLOG_MD_ORIG_CTXT = 6,
518 LLOG_MD_REPL_CTXT = 7,
519 LLOG_RD1_ORIG_CTXT = 8,
520 LLOG_RD1_REPL_CTXT = 9,
521 LLOG_TEST_ORIG_CTXT = 10,
522 LLOG_TEST_REPL_CTXT = 11,
523 LLOG_REINT_ORIG_CTXT = 12,
528 struct llog_ctxt *llog_ctxt[LLOG_MAX_CTXTS];
531 /* corresponds to one of the obd's */
533 struct obd_type *obd_type;
535 /* common and UUID name of this device */
537 struct obd_uuid obd_uuid;
540 unsigned int obd_attached:1, obd_set_up:1, obd_recovering:1,
541 obd_abort_recovery:1, obd_replayable:1, obd_no_transno:1,
542 obd_no_recov:1, obd_stopping:1;
543 atomic_t obd_refcount;
544 wait_queue_head_t obd_refcount_waitq;
545 struct proc_dir_entry *obd_proc_entry;
546 struct list_head obd_exports;
548 struct ldlm_namespace *obd_namespace;
549 struct ptlrpc_client obd_ldlm_client; /* XXX OST/MDS only */
550 /* a spinlock is OK for what we do now, may need a semaphore later */
551 spinlock_t obd_dev_lock;
552 __u64 obd_last_committed;
553 struct fsfilt_operations *obd_fsops;
554 spinlock_t obd_osfs_lock;
555 struct obd_statfs obd_osfs;
556 unsigned long obd_osfs_age;
557 struct lvfs_run_ctxt obd_lvfs_ctxt;
558 struct obd_llogs obd_llogs;
559 struct llog_ctxt *obd_llog_ctxt[LLOG_MAX_CTXTS];
560 struct obd_device *obd_observer;
561 struct obd_export *obd_self_export;
563 /* XXX encapsulate all this recovery data into one struct */
564 svc_handler_t obd_recovery_handler;
565 int obd_max_recoverable_clients;
566 int obd_connected_clients;
567 int obd_recoverable_clients;
568 spinlock_t obd_processing_task_lock;
569 pid_t obd_processing_task;
570 __u64 obd_next_recovery_transno;
571 int obd_replayed_requests;
572 int obd_requests_queued_for_recovery;
573 wait_queue_head_t obd_next_transno_waitq;
574 struct list_head obd_uncommitted_replies;
575 spinlock_t obd_uncommitted_replies_lock;
576 struct timer_list obd_recovery_timer;
577 struct list_head obd_recovery_queue;
578 struct list_head obd_delayed_reply_queue;
581 struct filter_obd filter;
583 struct client_obd cli;
585 struct echo_client_obd echo_client;
586 struct echo_obd echo;
587 struct recovd_obd recovd;
589 struct cache_obd cobd;
590 struct ptlbd_obd ptlbd;
591 struct mgmtcli_obd mgmtcli;
593 struct cache_manager_obd cmobd;
595 /* Fields used by LProcFS */
596 unsigned int obd_cntr_base;
597 struct lprocfs_stats *obd_stats;
598 struct proc_dir_entry *obd_svc_procroot;
599 struct lprocfs_stats *obd_svc_stats;
602 #define OBD_OPT_FORCE 0x0001
603 #define OBD_OPT_FAILOVER 0x0002
604 #define OBD_OPT_REAL_CLIENT 0x0004
606 #define OBD_LLOG_FL_SENDNOW 0x0001
607 #define OBD_LLOG_FL_CREATE 0x0002
612 struct module *o_owner;
613 int (*o_iocontrol)(unsigned int cmd, struct obd_export *exp, int len,
614 void *karg, void *uarg);
615 int (*o_get_info)(struct obd_export *, __u32 keylen, void *key,
616 __u32 *vallen, void *val);
617 int (*o_set_info)(struct obd_export *, __u32 keylen, void *key,
618 __u32 vallen, void *val);
619 int (*o_attach)(struct obd_device *dev, obd_count len, void *data);
620 int (*o_detach)(struct obd_device *dev);
621 int (*o_setup) (struct obd_device *dev, obd_count len, void *data);
622 int (*o_precleanup)(struct obd_device *dev, int flags);
623 int (*o_cleanup)(struct obd_device *dev, int flags);
624 int (*o_process_config)(struct obd_device *dev, obd_count len,
626 int (*o_postrecov)(struct obd_device *dev);
627 int (*o_connect)(struct lustre_handle *conn, struct obd_device *src,
628 struct obd_uuid *cluuid);
629 int (*o_disconnect)(struct obd_export *exp, int flags);
631 int (*o_statfs)(struct obd_device *obd, struct obd_statfs *osfs,
632 unsigned long max_age);
633 int (*o_packmd)(struct obd_export *exp, struct lov_mds_md **disk_tgt,
634 struct lov_stripe_md *mem_src);
635 int (*o_unpackmd)(struct obd_export *exp,struct lov_stripe_md **mem_tgt,
636 struct lov_mds_md *disk_src, int disk_len);
637 int (*o_revalidate_md)(struct obd_export *exp, struct obdo *oa,
638 struct lov_stripe_md *ea,
639 struct obd_trans_info *oti);
640 int (*o_preallocate)(struct lustre_handle *, obd_count *req,
642 int (*o_create)(struct obd_export *exp, struct obdo *oa,
643 struct lov_stripe_md **ea, struct obd_trans_info *oti);
644 int (*o_destroy)(struct obd_export *exp, struct obdo *oa,
645 struct lov_stripe_md *ea, struct obd_trans_info *oti);
646 int (*o_setattr)(struct obd_export *exp, struct obdo *oa,
647 struct lov_stripe_md *ea, struct obd_trans_info *oti);
648 int (*o_getattr)(struct obd_export *exp, struct obdo *oa,
649 struct lov_stripe_md *ea);
650 int (*o_getattr_async)(struct obd_export *exp, struct obdo *oa,
651 struct lov_stripe_md *ea,
652 struct ptlrpc_request_set *set);
653 int (*o_brw)(int rw, struct obd_export *exp, struct obdo *oa,
654 struct lov_stripe_md *ea, obd_count oa_bufs,
655 struct brw_page *pgarr, struct obd_trans_info *oti);
656 int (*o_brw_async)(int rw, struct obd_export *exp, struct obdo *oa,
657 struct lov_stripe_md *ea, obd_count oa_bufs,
658 struct brw_page *pgarr, struct ptlrpc_request_set *,
659 struct obd_trans_info *oti);
660 int (*o_prep_async_page)(struct obd_export *exp,
661 struct lov_stripe_md *lsm,
662 struct lov_oinfo *loi,
663 struct page *page, obd_off offset,
664 struct obd_async_page_ops *ops, void *data,
666 int (*o_queue_async_io)(struct obd_export *exp,
667 struct lov_stripe_md *lsm,
668 struct lov_oinfo *loi, void *cookie,
669 int cmd, obd_off off, int count,
670 obd_flag brw_flags, obd_flag async_flags);
671 int (*o_queue_group_io)(struct obd_export *exp,
672 struct lov_stripe_md *lsm,
673 struct lov_oinfo *loi,
674 struct obd_io_group *oig,
675 void *cookie, int cmd, obd_off off, int count,
676 obd_flag brw_flags, obd_flag async_flags);
677 int (*o_trigger_group_io)(struct obd_export *exp,
678 struct lov_stripe_md *lsm,
679 struct lov_oinfo *loi,
680 struct obd_io_group *oig);
681 int (*o_set_async_flags)(struct obd_export *exp,
682 struct lov_stripe_md *lsm,
683 struct lov_oinfo *loi, void *cookie,
684 obd_flag async_flags);
685 int (*o_teardown_async_page)(struct obd_export *exp,
686 struct lov_stripe_md *lsm,
687 struct lov_oinfo *loi, void *cookie);
688 int (*o_punch)(struct obd_export *exp, struct obdo *oa,
689 struct lov_stripe_md *ea, obd_size start,
690 obd_size end, struct obd_trans_info *oti);
691 int (*o_sync)(struct obd_export *exp, struct obdo *oa,
692 struct lov_stripe_md *ea, obd_size start, obd_size end);
693 int (*o_migrate)(struct lustre_handle *conn, struct lov_stripe_md *dst,
694 struct lov_stripe_md *src, obd_size start,
695 obd_size end, struct obd_trans_info *oti);
696 int (*o_copy)(struct lustre_handle *dstconn, struct lov_stripe_md *dst,
697 struct lustre_handle *srconn, struct lov_stripe_md *src,
698 obd_size start, obd_size end, struct obd_trans_info *);
699 int (*o_iterate)(struct lustre_handle *conn,
700 int (*)(obd_id, obd_gr, void *),
701 obd_id *startid, obd_gr group, void *data);
702 int (*o_preprw)(int cmd, struct obd_export *exp, struct obdo *oa,
703 int objcount, struct obd_ioobj *obj,
704 int niocount, struct niobuf_remote *remote,
705 struct niobuf_local *local, struct obd_trans_info *oti);
706 int (*o_commitrw)(int cmd, struct obd_export *exp, struct obdo *oa,
707 int objcount, struct obd_ioobj *obj,
708 int niocount, struct niobuf_local *local,
709 struct obd_trans_info *oti, int rc);
710 int (*o_write_extents)(struct obd_export *exp, struct obd_ioobj *obj,
711 int niocount, struct niobuf_local *local,int rc);
712 int (*o_enqueue)(struct obd_export *, struct lov_stripe_md *,
713 __u32 type, ldlm_policy_data_t *, __u32 mode,
714 int *flags, void *bl_cb, void *cp_cb, void *gl_cb,
715 void *data, __u32 lvb_len, void *lvb_swabber,
716 struct lustre_handle *lockh);
717 int (*o_match)(struct obd_export *, struct lov_stripe_md *, __u32 type,
718 ldlm_policy_data_t *, __u32 mode, int *flags, void *data,
719 struct lustre_handle *lockh);
720 int (*o_change_cbdata)(struct obd_export *, struct lov_stripe_md *,
721 ldlm_iterator_t it, void *data);
722 int (*o_cancel)(struct obd_export *, struct lov_stripe_md *md,
723 __u32 mode, struct lustre_handle *);
724 int (*o_cancel_unused)(struct obd_export *, struct lov_stripe_md *,
725 int flags, void *opaque);
726 int (*o_san_preprw)(int cmd, struct obd_export *exp,
727 struct obdo *oa, int objcount,
728 struct obd_ioobj *obj, int niocount,
729 struct niobuf_remote *remote);
730 int (*o_init_export)(struct obd_export *exp);
731 int (*o_destroy_export)(struct obd_export *exp);
733 /* llog related obd_methods */
734 int (*o_llog_init)(struct obd_device *, struct obd_llogs *,
735 struct obd_device *, int, struct llog_catid *);
736 int (*o_llog_finish)(struct obd_device *, struct obd_llogs *, int);
737 int (*o_llog_connect)(struct obd_device *, struct llogd_conn_body *);
740 /* metadata-only methods */
741 int (*o_pin)(struct obd_export *, obd_id ino, __u32 gen, int type,
742 struct obd_client_handle *, int flag);
743 int (*o_unpin)(struct obd_export *, struct obd_client_handle *, int);
745 int (*o_import_event)(struct obd_device *, struct obd_import *,
746 enum obd_import_event);
748 int (*o_notify)(struct obd_device *obd, struct obd_device *watched,
750 int (*o_init_ea_size)(struct obd_export *, int, int);
753 * NOTE: If adding ops, add another LPROCFS_OBD_OP_INIT() line
754 * to lprocfs_alloc_obd_stats() in obdclass/lprocfs_status.c.
755 * Also, add a wrapper function in include/linux/obd_class.h.
762 int (*m_getstatus)(struct obd_export *, struct ll_fid *);
763 int (*m_change_cbdata)(struct obd_export *, struct ll_fid *,
764 ldlm_iterator_t, void *);
765 int (*m_change_cbdata_name)(struct obd_export *, struct ll_fid *,
766 char *, int, struct ll_fid *,
767 ldlm_iterator_t, void *);
768 int (*m_close)(struct obd_export *, struct obdo *,
769 struct obd_client_handle *,
770 struct ptlrpc_request **);
771 int (*m_create)(struct obd_export *, struct mdc_op_data *,
772 const void *, int, int, __u32, __u32,
773 __u64, struct ptlrpc_request **);
774 int (*m_done_writing)(struct obd_export *, struct obdo *);
775 int (*m_enqueue)(struct obd_export *, int, struct lookup_intent *,
776 int, struct mdc_op_data *, struct lustre_handle *,
777 void *, int, ldlm_completion_callback,
778 ldlm_blocking_callback, void *);
779 int (*m_getattr)(struct obd_export *, struct ll_fid *,
780 unsigned long, unsigned int,
781 struct ptlrpc_request **);
782 int (*m_getattr_name)(struct obd_export *, struct ll_fid *,
783 char *, int, unsigned long,
784 unsigned int, struct ptlrpc_request **);
785 int (*m_intent_lock)(struct obd_export *, struct ll_uctxt *,
786 struct ll_fid *, const char *, int,
787 void *, int, struct ll_fid *,
788 struct lookup_intent *, int,
789 struct ptlrpc_request **,
790 ldlm_blocking_callback);
791 int (*m_link)(struct obd_export *, struct mdc_op_data *,
792 struct ptlrpc_request **);
793 int (*m_rename)(struct obd_export *, struct mdc_op_data *,
794 const char *, int, const char *, int,
795 struct ptlrpc_request **);
796 int (*m_setattr)(struct obd_export *, struct mdc_op_data *,
797 struct iattr *, void *, int , void *, int,
798 struct ptlrpc_request **);
799 int (*m_sync)(struct obd_export *, struct ll_fid *,
800 struct ptlrpc_request **);
801 int (*m_readpage)(struct obd_export *, struct ll_fid *,
802 __u64, struct page *, struct ptlrpc_request **);
803 int (*m_unlink)(struct obd_export *, struct mdc_op_data *,
804 struct ptlrpc_request **);
805 int (*m_valid_attrs)(struct obd_export *, struct ll_fid *);
806 struct obd_device * (*m_get_real_obd)(struct obd_export *,
807 char *name, int len);
809 int (*m_req2lustre_md)(struct obd_export *exp,
810 struct ptlrpc_request *req, unsigned int offset,
811 struct obd_export *osc_exp, struct lustre_md *md);
812 int (*m_set_open_replay_data)(struct obd_export *exp,
813 struct obd_client_handle *och,
814 struct ptlrpc_request *open_req);
815 int (*m_clear_open_replay_data)(struct obd_export *exp,
816 struct obd_client_handle *och);
817 int (*m_store_inode_generation)(struct obd_export *exp,
818 struct ptlrpc_request *req, int reqoff,
820 int (*m_set_lock_data)(struct obd_export *exp, __u64 *l, void *data);
822 int (*m_delete_object)(struct obd_export *, struct ll_fid *);
824 * NOTE: If adding ops, add another LPROCFS_OBD_OP_INIT() line
825 * to lprocfs_alloc_obd_stats() in obdclass/lprocfs_status.c.
826 * Also, add a wrapper function in include/linux/obd_class.h.
830 static inline void obd_transno_commit_cb(struct obd_device *obd, __u64 transno,
834 CERROR("%s: transno "LPD64" commit error: %d\n",
835 obd->obd_name, transno, error);
838 CDEBUG(D_HA, "%s: transno "LPD64" committed\n",
839 obd->obd_name, transno);
840 if (transno > obd->obd_last_committed) {
841 obd->obd_last_committed = transno;
842 ptlrpc_commit_replies (obd);