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;
192 struct semaphore fo_init_lock; /* group initialization lock */
194 spinlock_t fo_objidlock; /* protect fo_lastobjid increment */
195 spinlock_t fo_translock; /* protect fsd_last_rcvd increment */
196 struct file *fo_rcvd_filp;
197 struct filter_server_data *fo_fsd;
198 unsigned long *fo_last_rcvd_slots;
199 __u64 fo_mount_count;
201 unsigned int fo_destroy_in_progress:1;
202 struct semaphore fo_create_lock;
204 struct file_operations *fo_fop;
205 struct inode_operations *fo_iop;
206 struct address_space_operations *fo_aops;
208 struct list_head fo_export_list;
211 obd_size fo_tot_dirty; /* protected by obd_osfs_lock */
212 obd_size fo_tot_granted; /* all values in bytes */
213 obd_size fo_tot_pending;
215 obd_size fo_readcache_max_filesize;
217 struct obd_import *fo_mdc_imp;
218 struct obd_uuid fo_mdc_uuid;
219 struct lustre_handle fo_mdc_conn;
221 struct semaphore fo_alloc_lock;
223 struct obd_histogram fo_r_pages;
224 struct obd_histogram fo_w_pages;
225 struct obd_histogram fo_r_discont_pages;
226 struct obd_histogram fo_w_discont_pages;
227 struct obd_histogram fo_r_discont_blocks;
228 struct obd_histogram fo_w_discont_blocks;
230 struct list_head fo_llog_list;
231 spinlock_t fo_llog_list_lock;
234 struct mds_server_data;
236 #define OSC_MAX_RIF_DEFAULT 4
237 #define OSC_MAX_RIF_MAX 32
238 #define OSC_MAX_DIRTY_DEFAULT 4
239 #define OSC_MAX_DIRTY_MB_MAX 256 /* totally arbitrary */
243 struct obd_import *cl_import;
244 struct semaphore cl_sem;
246 /* max_mds_easize is purely a performance thing so we don't have to
247 * call obd_size_wiremd() all the time. */
248 int cl_max_mds_easize;
249 int cl_max_mds_cookiesize;
252 //struct llog_canceld_ctxt *cl_llcd; /* it's included by obd_llog_ctxt */
253 void *cl_llcd_offset;
255 struct obd_device *cl_mgmtcli_obd;
257 /* the grant values are protected by loi_list_lock below */
258 long cl_dirty; /* all _dirty_ in bytes */
259 long cl_dirty_max; /* allowed w/o rpc */
260 long cl_avail_grant; /* bytes of credit for ost */
261 long cl_lost_grant; /* lost credits (trunc) */
262 struct list_head cl_cache_waiters; /* waiting for cache/grant */
264 /* keep track of objects that have lois that contain pages which
265 * have been queued for async brw. this lock also protects the
266 * lists of osc_client_pages that hang off of the loi */
267 spinlock_t cl_loi_list_lock;
268 struct list_head cl_loi_ready_list;
269 struct list_head cl_loi_write_list;
270 struct list_head cl_loi_read_list;
271 int cl_brw_in_flight;
272 /* just a sum of the loi/lop pending numbers to be exported by /proc */
273 int cl_pending_w_pages;
274 int cl_pending_r_pages;
275 int cl_max_pages_per_rpc;
276 int cl_max_rpcs_in_flight;
277 struct obd_histogram cl_read_rpc_hist;
278 struct obd_histogram cl_write_rpc_hist;
279 struct obd_histogram cl_read_page_hist;
280 struct obd_histogram cl_write_page_hist;
282 struct mdc_rpc_lock *cl_rpc_lock;
283 struct mdc_rpc_lock *cl_setattr_lock;
284 struct osc_creator cl_oscc;
288 /* Like a client, with some hangers-on. Keep mc_client_obd first so that we
289 * can reuse the various client setup/connect functions. */
291 struct client_obd mc_client_obd; /* nested */
292 struct ptlrpc_thread *mc_ping_thread;
293 struct obd_export *mc_ping_exp; /* XXX single-target */
294 struct list_head mc_registered;
298 #define mc_import mc_client_obd.cl_import
301 struct ptlrpc_service *mds_service;
302 struct ptlrpc_service *mds_setattr_service;
303 struct ptlrpc_service *mds_readpage_service;
304 struct super_block *mds_sb;
305 struct vfsmount *mds_vfsmnt;
306 struct dentry *mds_fid_de;
308 int mds_max_cookiesize;
309 struct file *mds_rcvd_filp;
310 spinlock_t mds_transno_lock;
311 __u64 mds_last_transno;
312 __u64 mds_mount_count;
314 struct semaphore mds_epoch_sem;
315 struct ll_fid mds_rootfid;
316 struct mds_server_data *mds_server_data;
317 struct dentry *mds_pending_dir;
318 struct dentry *mds_logs_dir;
319 struct dentry *mds_objects_dir;
320 struct llog_handle *mds_cfg_llh;
321 // struct llog_handle *mds_catalog;
322 struct obd_device *mds_osc_obd; /* XXX lov_obd */
323 struct obd_uuid mds_lov_uuid;
325 struct obd_export *mds_osc_exp; /* XXX lov_exp */
326 int mds_has_lov_desc;
327 struct lov_desc mds_lov_desc;
328 obd_id *mds_lov_objids;
329 int mds_lov_objids_valid;
330 int mds_lov_nextid_set;
331 struct file *mds_lov_objid_filp;
332 spinlock_t mds_lov_lock;
333 unsigned long *mds_client_bitmap;
334 struct semaphore mds_orphan_recovery_sem;
335 /*add mds num here for real mds and cache mds create
336 FIXME later will be totally fixed by b_cmd*/
338 atomic_t mds_open_count;
339 int mds_config_version;
342 struct obd_device *mds_lmv_obd; /* XXX lmv_obd */
343 struct obd_export *mds_lmv_exp; /* XXX lov_exp */
344 struct ptlrpc_service *mds_create_service;
345 struct semaphore mds_lmv_sem;
346 atomic_t mds_real_clients;
347 struct obd_uuid mds_lmv_uuid;
348 struct dentry *mds_fids_dir;
349 struct dentry *mds_unnamed_dir; /* for mdt_obd_create only */
366 * this struct does double-duty acting as either a client or
367 * server instance .. maybe not wise.
371 struct ptlrpc_service *ptlbd_service;
374 struct ptlrpc_client bd_client;
375 struct obd_import *bd_import;
376 struct obd_uuid bd_server_uuid;
377 struct obd_export *bd_exp;
378 int refcount; /* XXX sigh */
382 spinlock_t recovd_lock;
383 struct list_head recovd_managed_items; /* items managed */
384 struct list_head recovd_troubled_items; /* items in recovery */
386 wait_queue_head_t recovd_recovery_waitq;
387 wait_queue_head_t recovd_ctl_waitq;
388 wait_queue_head_t recovd_waitq;
389 struct task_struct *recovd_thread;
394 struct ptlrpc_service *ost_service;
395 struct ptlrpc_service *ost_create_service;
398 struct echo_client_obd {
399 struct obd_export *ec_exp; /* the local connection to osc/lov */
401 struct list_head ec_objects;
407 struct obd_export *cobd_real_exp;/* local connection to target obd */
408 struct obd_export *cobd_cache_exp; /* local connection to cache obd */
409 char *cobd_real_name;
410 char *cobd_cache_name;
415 struct lov_tgt_desc {
416 struct obd_uuid uuid;
418 struct obd_export *ltd_exp;
419 int active; /* is this target up for requests */
424 struct lov_desc desc;
425 struct semaphore lov_llog_sem;
428 int lo_catalog_loaded:1;
429 struct lov_tgt_desc *tgts;
432 struct lmv_tgt_desc {
433 struct obd_uuid uuid;
434 struct obd_export *ltd_exp;
435 int active; /* is this target up for requests */
440 struct lmv_desc desc;
443 struct lmv_tgt_desc *tgts;
444 struct obd_uuid cluuid;
445 struct obd_export *exp;
453 struct niobuf_local {
458 struct dentry *dentry;
463 struct cache_manager_obd {
464 struct obd_device *cm_master_obd; /* master lov */
465 struct obd_export *cm_master_exp;
466 struct obd_device *cm_cache_obd; /* cache obdfilter */
467 struct obd_export *cm_cache_exp;
468 int cm_master_group; /* master group*/
469 struct cmobd_write_service *cm_write_srv;
473 /* Don't conflict with on-wire flags OBD_BRW_WRITE, etc */
474 #define N_LOCAL_TEMP_PAGE 0x10000000
476 struct obd_trans_info {
479 /* Only used on the server side for tracking acks. */
480 struct oti_req_ack_lock {
481 struct lustre_handle lock;
485 struct llog_cookie oti_onecookie;
486 struct llog_cookie *oti_logcookies;
490 static inline void oti_alloc_cookies(struct obd_trans_info *oti,int num_cookies)
495 if (num_cookies == 1)
496 oti->oti_logcookies = &oti->oti_onecookie;
498 OBD_ALLOC(oti->oti_logcookies,
499 num_cookies * sizeof(oti->oti_onecookie));
501 oti->oti_numcookies = num_cookies;
504 static inline void oti_free_cookies(struct obd_trans_info *oti)
506 if (!oti || !oti->oti_logcookies)
509 if (oti->oti_logcookies == &oti->oti_onecookie)
510 LASSERT(oti->oti_numcookies == 1);
512 OBD_FREE(oti->oti_logcookies,
513 oti->oti_numcookies * sizeof(oti->oti_onecookie));
514 oti->oti_logcookies = NULL;
515 oti->oti_numcookies = 0;
520 LLOG_CONFIG_ORIG_CTXT = 0,
521 LLOG_CONFIG_REPL_CTXT = 1,
522 LLOG_UNLINK_ORIG_CTXT = 2,
523 LLOG_UNLINK_REPL_CTXT = 3,
524 LLOG_SIZE_ORIG_CTXT = 4,
525 LLOG_SIZE_REPL_CTXT = 5,
526 LLOG_MD_ORIG_CTXT = 6,
527 LLOG_MD_REPL_CTXT = 7,
528 LLOG_RD1_ORIG_CTXT = 8,
529 LLOG_RD1_REPL_CTXT = 9,
530 LLOG_TEST_ORIG_CTXT = 10,
531 LLOG_TEST_REPL_CTXT = 11,
532 LLOG_REINT_ORIG_CTXT = 12,
537 struct llog_ctxt *llog_ctxt[LLOG_MAX_CTXTS];
540 struct target_recovery_data {
541 svc_handler_t trd_recovery_handler;
542 pid_t trd_processing_task;
543 struct completion trd_starting;
544 struct completion trd_finishing;
547 /* corresponds to one of the obd's */
549 struct obd_type *obd_type;
551 /* common and UUID name of this device */
553 struct obd_uuid obd_uuid;
556 unsigned int obd_attached:1, obd_set_up:1, obd_recovering:1,
557 obd_abort_recovery:1, obd_replayable:1, obd_no_transno:1,
558 obd_no_recov:1, obd_stopping:1;
559 atomic_t obd_refcount;
560 wait_queue_head_t obd_refcount_waitq;
561 struct proc_dir_entry *obd_proc_entry;
562 struct list_head obd_exports;
564 struct ldlm_namespace *obd_namespace;
565 struct ptlrpc_client obd_ldlm_client; /* XXX OST/MDS only */
566 /* a spinlock is OK for what we do now, may need a semaphore later */
567 spinlock_t obd_dev_lock;
568 __u64 obd_last_committed;
569 struct fsfilt_operations *obd_fsops;
570 spinlock_t obd_osfs_lock;
571 struct obd_statfs obd_osfs;
572 unsigned long obd_osfs_age;
573 struct lvfs_run_ctxt obd_lvfs_ctxt;
574 struct obd_llogs obd_llogs;
575 struct llog_ctxt *obd_llog_ctxt[LLOG_MAX_CTXTS];
576 struct obd_device *obd_observer;
577 struct obd_export *obd_self_export;
579 struct target_recovery_data obd_recovery_data;
580 /* XXX encapsulate all this recovery data into target_recovery_data */
581 int obd_max_recoverable_clients;
582 int obd_connected_clients;
583 int obd_recoverable_clients;
584 spinlock_t obd_processing_task_lock;
585 __u64 obd_next_recovery_transno;
586 int obd_replayed_requests;
587 int obd_requests_queued_for_recovery;
588 wait_queue_head_t obd_next_transno_waitq;
589 struct list_head obd_uncommitted_replies;
590 spinlock_t obd_uncommitted_replies_lock;
591 struct timer_list obd_recovery_timer;
592 struct list_head obd_recovery_queue;
593 struct list_head obd_delayed_reply_queue;
596 struct filter_obd filter;
598 struct client_obd cli;
600 struct echo_client_obd echo_client;
601 struct echo_obd echo;
602 struct recovd_obd recovd;
604 struct cache_obd cobd;
605 struct ptlbd_obd ptlbd;
606 struct mgmtcli_obd mgmtcli;
608 struct cache_manager_obd cmobd;
610 /* Fields used by LProcFS */
611 unsigned int obd_cntr_base;
612 struct lprocfs_stats *obd_stats;
613 struct proc_dir_entry *obd_svc_procroot;
614 struct lprocfs_stats *obd_svc_stats;
617 #define OBD_OPT_FORCE 0x0001
618 #define OBD_OPT_FAILOVER 0x0002
619 #define OBD_OPT_REAL_CLIENT 0x0004
620 #define OBD_OPT_MDS_CONNECTION 0x0008
622 #define OBD_LLOG_FL_SENDNOW 0x0001
623 #define OBD_LLOG_FL_CREATE 0x0002
628 struct module *o_owner;
629 int (*o_iocontrol)(unsigned int cmd, struct obd_export *exp, int len,
630 void *karg, void *uarg);
631 int (*o_get_info)(struct obd_export *, __u32 keylen, void *key,
632 __u32 *vallen, void *val);
633 int (*o_set_info)(struct obd_export *, __u32 keylen, void *key,
634 __u32 vallen, void *val);
635 int (*o_attach)(struct obd_device *dev, obd_count len, void *data);
636 int (*o_detach)(struct obd_device *dev);
637 int (*o_setup) (struct obd_device *dev, obd_count len, void *data);
638 int (*o_precleanup)(struct obd_device *dev, int flags);
639 int (*o_cleanup)(struct obd_device *dev, int flags);
640 int (*o_process_config)(struct obd_device *dev, obd_count len,
642 int (*o_postrecov)(struct obd_device *dev);
643 int (*o_connect)(struct lustre_handle *conn, struct obd_device *src,
644 struct obd_uuid *cluuid, unsigned long connect_flags);
645 int (*o_disconnect)(struct obd_export *exp, int flags);
647 int (*o_statfs)(struct obd_device *obd, struct obd_statfs *osfs,
648 unsigned long max_age);
649 int (*o_packmd)(struct obd_export *exp, struct lov_mds_md **disk_tgt,
650 struct lov_stripe_md *mem_src);
651 int (*o_unpackmd)(struct obd_export *exp,struct lov_stripe_md **mem_tgt,
652 struct lov_mds_md *disk_src, int disk_len);
653 int (*o_revalidate_md)(struct obd_export *exp, struct obdo *oa,
654 struct lov_stripe_md *ea,
655 struct obd_trans_info *oti);
656 int (*o_preallocate)(struct lustre_handle *, obd_count *req,
658 int (*o_create)(struct obd_export *exp, struct obdo *oa,
659 struct lov_stripe_md **ea, struct obd_trans_info *oti);
660 int (*o_destroy)(struct obd_export *exp, struct obdo *oa,
661 struct lov_stripe_md *ea, struct obd_trans_info *oti);
662 int (*o_setattr)(struct obd_export *exp, struct obdo *oa,
663 struct lov_stripe_md *ea, struct obd_trans_info *oti);
664 int (*o_getattr)(struct obd_export *exp, struct obdo *oa,
665 struct lov_stripe_md *ea);
666 int (*o_getattr_async)(struct obd_export *exp, struct obdo *oa,
667 struct lov_stripe_md *ea,
668 struct ptlrpc_request_set *set);
669 int (*o_brw)(int rw, struct obd_export *exp, struct obdo *oa,
670 struct lov_stripe_md *ea, obd_count oa_bufs,
671 struct brw_page *pgarr, struct obd_trans_info *oti);
672 int (*o_brw_async)(int rw, struct obd_export *exp, struct obdo *oa,
673 struct lov_stripe_md *ea, obd_count oa_bufs,
674 struct brw_page *pgarr, struct ptlrpc_request_set *,
675 struct obd_trans_info *oti);
676 int (*o_prep_async_page)(struct obd_export *exp,
677 struct lov_stripe_md *lsm,
678 struct lov_oinfo *loi,
679 struct page *page, obd_off offset,
680 struct obd_async_page_ops *ops, void *data,
682 int (*o_queue_async_io)(struct obd_export *exp,
683 struct lov_stripe_md *lsm,
684 struct lov_oinfo *loi, void *cookie,
685 int cmd, obd_off off, int count,
686 obd_flag brw_flags, obd_flag async_flags);
687 int (*o_queue_group_io)(struct obd_export *exp,
688 struct lov_stripe_md *lsm,
689 struct lov_oinfo *loi,
690 struct obd_io_group *oig,
691 void *cookie, int cmd, obd_off off, int count,
692 obd_flag brw_flags, obd_flag async_flags);
693 int (*o_trigger_group_io)(struct obd_export *exp,
694 struct lov_stripe_md *lsm,
695 struct lov_oinfo *loi,
696 struct obd_io_group *oig);
697 int (*o_set_async_flags)(struct obd_export *exp,
698 struct lov_stripe_md *lsm,
699 struct lov_oinfo *loi, void *cookie,
700 obd_flag async_flags);
701 int (*o_teardown_async_page)(struct obd_export *exp,
702 struct lov_stripe_md *lsm,
703 struct lov_oinfo *loi, void *cookie);
704 int (*o_punch)(struct obd_export *exp, struct obdo *oa,
705 struct lov_stripe_md *ea, obd_size start,
706 obd_size end, struct obd_trans_info *oti);
707 int (*o_sync)(struct obd_export *exp, struct obdo *oa,
708 struct lov_stripe_md *ea, obd_size start, obd_size end);
709 int (*o_migrate)(struct lustre_handle *conn, struct lov_stripe_md *dst,
710 struct lov_stripe_md *src, obd_size start,
711 obd_size end, struct obd_trans_info *oti);
712 int (*o_copy)(struct lustre_handle *dstconn, struct lov_stripe_md *dst,
713 struct lustre_handle *srconn, struct lov_stripe_md *src,
714 obd_size start, obd_size end, struct obd_trans_info *);
715 int (*o_iterate)(struct lustre_handle *conn,
716 int (*)(obd_id, obd_gr, void *),
717 obd_id *startid, obd_gr group, void *data);
718 int (*o_preprw)(int cmd, struct obd_export *exp, struct obdo *oa,
719 int objcount, struct obd_ioobj *obj,
720 int niocount, struct niobuf_remote *remote,
721 struct niobuf_local *local, struct obd_trans_info *oti);
722 int (*o_commitrw)(int cmd, struct obd_export *exp, struct obdo *oa,
723 int objcount, struct obd_ioobj *obj,
724 int niocount, struct niobuf_local *local,
725 struct obd_trans_info *oti, int rc);
726 int (*o_do_cow)(struct obd_export *exp, struct obd_ioobj *obj,
727 int objcount, struct niobuf_remote *rnb);
728 int (*o_write_extents)(struct obd_export *exp, struct obd_ioobj *obj,
729 int objcount, int niocount,
730 struct niobuf_local *local,int rc);
731 int (*o_enqueue)(struct obd_export *, struct lov_stripe_md *,
732 __u32 type, ldlm_policy_data_t *, __u32 mode,
733 int *flags, void *bl_cb, void *cp_cb, void *gl_cb,
734 void *data, __u32 lvb_len, void *lvb_swabber,
735 struct lustre_handle *lockh);
736 int (*o_match)(struct obd_export *, struct lov_stripe_md *, __u32 type,
737 ldlm_policy_data_t *, __u32 mode, int *flags, void *data,
738 struct lustre_handle *lockh);
739 int (*o_change_cbdata)(struct obd_export *, struct lov_stripe_md *,
740 ldlm_iterator_t it, void *data);
741 int (*o_cancel)(struct obd_export *, struct lov_stripe_md *md,
742 __u32 mode, struct lustre_handle *);
743 int (*o_cancel_unused)(struct obd_export *, struct lov_stripe_md *,
744 int flags, void *opaque);
745 int (*o_san_preprw)(int cmd, struct obd_export *exp,
746 struct obdo *oa, int objcount,
747 struct obd_ioobj *obj, int niocount,
748 struct niobuf_remote *remote);
749 int (*o_init_export)(struct obd_export *exp);
750 int (*o_destroy_export)(struct obd_export *exp);
752 /* llog related obd_methods */
753 int (*o_llog_init)(struct obd_device *, struct obd_llogs *,
754 struct obd_device *, int, struct llog_catid *);
755 int (*o_llog_finish)(struct obd_device *, struct obd_llogs *, int);
756 int (*o_llog_connect)(struct obd_device *, struct llogd_conn_body *);
759 /* metadata-only methods */
760 int (*o_pin)(struct obd_export *, obd_id ino, __u32 gen, int type,
761 struct obd_client_handle *, int flag);
762 int (*o_unpin)(struct obd_export *, struct obd_client_handle *, int);
764 int (*o_import_event)(struct obd_device *, struct obd_import *,
765 enum obd_import_event);
767 int (*o_notify)(struct obd_device *obd, struct obd_device *watched,
769 int (*o_init_ea_size)(struct obd_export *, int, int);
772 * NOTE: If adding ops, add another LPROCFS_OBD_OP_INIT() line
773 * to lprocfs_alloc_obd_stats() in obdclass/lprocfs_status.c.
774 * Also, add a wrapper function in include/linux/obd_class.h.
781 int (*m_getstatus)(struct obd_export *, struct ll_fid *);
782 int (*m_change_cbdata)(struct obd_export *, struct ll_fid *,
783 ldlm_iterator_t, void *);
784 int (*m_change_cbdata_name)(struct obd_export *, struct ll_fid *,
785 char *, int, struct ll_fid *,
786 ldlm_iterator_t, void *);
787 int (*m_close)(struct obd_export *, struct obdo *,
788 struct obd_client_handle *,
789 struct ptlrpc_request **);
790 int (*m_create)(struct obd_export *, struct mdc_op_data *,
791 const void *, int, int, __u32, __u32,
792 __u64, struct ptlrpc_request **);
793 int (*m_done_writing)(struct obd_export *, struct obdo *);
794 int (*m_enqueue)(struct obd_export *, int, struct lookup_intent *,
795 int, struct mdc_op_data *, struct lustre_handle *,
796 void *, int, ldlm_completion_callback,
797 ldlm_blocking_callback, void *);
798 int (*m_getattr)(struct obd_export *, struct ll_fid *,
799 unsigned long, unsigned int,
800 struct ptlrpc_request **);
801 int (*m_getattr_name)(struct obd_export *, struct ll_fid *,
802 char *, int, unsigned long,
803 unsigned int, struct ptlrpc_request **);
804 int (*m_intent_lock)(struct obd_export *, struct ll_uctxt *,
805 struct ll_fid *, const char *, int,
806 void *, int, struct ll_fid *,
807 struct lookup_intent *, int,
808 struct ptlrpc_request **,
809 ldlm_blocking_callback);
810 int (*m_link)(struct obd_export *, struct mdc_op_data *,
811 struct ptlrpc_request **);
812 int (*m_rename)(struct obd_export *, struct mdc_op_data *,
813 const char *, int, const char *, int,
814 struct ptlrpc_request **);
815 int (*m_setattr)(struct obd_export *, struct mdc_op_data *,
816 struct iattr *, void *, int , void *, int,
817 struct ptlrpc_request **);
818 int (*m_sync)(struct obd_export *, struct ll_fid *,
819 struct ptlrpc_request **);
820 int (*m_readpage)(struct obd_export *, struct ll_fid *,
821 __u64, struct page *, struct ptlrpc_request **);
822 int (*m_unlink)(struct obd_export *, struct mdc_op_data *,
823 struct ptlrpc_request **);
824 int (*m_valid_attrs)(struct obd_export *, struct ll_fid *);
825 struct obd_device * (*m_get_real_obd)(struct obd_export *,
826 char *name, int len);
828 int (*m_req2lustre_md)(struct obd_export *exp,
829 struct ptlrpc_request *req, unsigned int offset,
830 struct obd_export *osc_exp, struct lustre_md *md);
831 int (*m_set_open_replay_data)(struct obd_export *exp,
832 struct obd_client_handle *och,
833 struct ptlrpc_request *open_req);
834 int (*m_clear_open_replay_data)(struct obd_export *exp,
835 struct obd_client_handle *och);
836 int (*m_store_inode_generation)(struct obd_export *exp,
837 struct ptlrpc_request *req, int reqoff,
839 int (*m_set_lock_data)(struct obd_export *exp, __u64 *l, void *data);
841 int (*m_delete_object)(struct obd_export *, struct ll_fid *);
843 * NOTE: If adding ops, add another LPROCFS_OBD_OP_INIT() line
844 * to lprocfs_alloc_obd_stats() in obdclass/lprocfs_status.c.
845 * Also, add a wrapper function in include/linux/obd_class.h.
849 static inline void obd_transno_commit_cb(struct obd_device *obd, __u64 transno,
853 CERROR("%s: transno "LPD64" commit error: %d\n",
854 obd->obd_name, transno, error);
857 CDEBUG(D_HA, "%s: transno "LPD64" committed\n",
858 obd->obd_name, transno);
859 if (transno > obd->obd_last_committed) {
860 obd->obd_last_committed = transno;
861 ptlrpc_commit_replies (obd);