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;
63 unsigned loi_kms_valid:1;
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];
98 static inline void dump_lsm(int level, struct lov_stripe_md *lsm)
101 CDEBUG(level, "objid "LPX64"/"LPU64", maxbytes "LPX64", magic 0x%08X, "
102 "stripe_size %u, stripe_count %u\n",
103 lsm->lsm_object_id, lsm->lsm_object_gr, lsm->lsm_maxbytes,
104 lsm->lsm_magic, lsm->lsm_stripe_size, lsm->lsm_stripe_count);
105 for (i = 0; i < lsm->lsm_stripe_count; i++)
106 CDEBUG(level, "idx %u ostidx %u/%u object "LPU64"/"LPU64"\n",
107 i, lsm->lsm_oinfo[i].loi_ost_idx,
108 lsm->lsm_oinfo[i].loi_ost_gen,
109 lsm->lsm_oinfo[i].loi_id, lsm->lsm_oinfo[i].loi_gr);
113 struct list_head typ_chain;
114 struct obd_ops *typ_ops;
115 struct md_ops *typ_md_ops;
116 struct proc_dir_entry *typ_procroot;
122 obd_off disk_offset; /* modulo PAGE_SIZE */
123 obd_off page_offset; /* modulo PAGE_SIZE (obviously) */
130 ASYNC_READY = 0x1, /* ap_make_ready will not be called before this
131 page is added to an rpc */
133 ASYNC_COUNT_STABLE = 0x4, /* ap_refresh_count will not be called
134 to give the caller a chance to update
135 or cancel the size of the io */
136 ASYNC_GROUP_SYNC = 0x8, /* ap_completion will not be called, instead
137 the page is accounted for in the
138 obd_io_group given to
139 obd_queue_group_io */
142 struct obd_async_page_ops {
143 int (*ap_make_ready)(void *data, int cmd);
144 int (*ap_refresh_count)(void *data, int cmd);
145 void (*ap_fill_obdo)(void *data, int cmd, struct obdo *oa);
146 void (*ap_completion)(void *data, int cmd, struct obdo *oa, int rc);
149 /* the `oig' is passed down from a caller of obd rw methods. the callee
150 * records enough state such that the caller can sleep on the oig and
151 * be woken when all the callees have finished their work */
152 struct obd_io_group {
154 atomic_t oig_refcount;
157 struct list_head oig_occ_list;
158 wait_queue_head_t oig_waitq;
161 /* the oig callback context lets the callee of obd rw methods register
162 * for callbacks from the caller. */
163 struct oig_callback_context {
164 struct list_head occ_oig_item;
165 /* called when the caller has received a signal while sleeping.
166 * callees of this method are encouraged to abort their state
167 * in the oig. This may be called multiple times. */
168 void (*occ_interrupted)(struct oig_callback_context *occ);
172 /* if we find more consumers this could be generalized */
173 #define OBD_HIST_MAX 32
174 struct obd_histogram {
176 unsigned long oh_buckets[OBD_HIST_MAX];
179 /* reports average service time with the help of lprocfs_status.c */
180 struct obd_service_time {
186 struct ost_server_data;
188 #define FILTER_SUBDIR_COUNT 32 /* set to zero for no subdirs */
190 #define FILTER_GROUP_LLOG 1
191 #define FILTER_GROUP_ECHO 2
192 #define FILTER_GROUP_FIRST_MDS 3
194 struct filter_subdirs {
195 struct dentry *dentry[FILTER_SUBDIR_COUNT];
198 struct filter_group_llog {
199 struct list_head list;
201 struct obd_llogs *llogs;
202 struct obd_export *exp;
206 const char *fo_fstype;
207 struct super_block *fo_sb;
208 struct vfsmount *fo_vfsmnt;
211 struct dentry *fo_dentry_O; /* the "O"bject directory dentry */
212 struct dentry **fo_groups; /* dentries for each group dir */
213 struct filter_subdirs *fo_subdirs; /* subdir array per group */
214 __u64 *fo_last_objids; /* per-group last created objid */
215 struct file **fo_last_objid_files;
216 struct semaphore fo_init_lock; /* group initialization lock */
217 int fo_committed_group;
219 spinlock_t fo_objidlock; /* protect fo_lastobjid increment */
220 spinlock_t fo_translock; /* protect fsd_last_rcvd increment */
221 struct file *fo_rcvd_filp;
222 struct filter_server_data *fo_fsd;
223 unsigned long *fo_last_rcvd_slots;
224 __u64 fo_mount_count;
226 unsigned long fo_destroys_in_progress;
227 struct semaphore fo_create_locks[32];
229 struct file_operations *fo_fop;
230 struct inode_operations *fo_iop;
231 struct address_space_operations *fo_aops;
233 struct list_head fo_export_list;
236 obd_size fo_tot_dirty; /* protected by obd_osfs_lock */
237 obd_size fo_tot_granted; /* all values in bytes */
238 obd_size fo_tot_pending;
240 obd_size fo_readcache_max_filesize;
242 struct obd_import *fo_mdc_imp;
243 struct obd_uuid fo_mdc_uuid;
244 struct lustre_handle fo_mdc_conn;
246 struct semaphore fo_alloc_lock;
248 struct obd_histogram fo_r_pages;
249 struct obd_histogram fo_w_pages;
250 struct obd_histogram fo_r_discont_pages;
251 struct obd_histogram fo_w_discont_pages;
252 struct obd_histogram fo_r_discont_blocks;
253 struct obd_histogram fo_w_discont_blocks;
255 struct list_head fo_llog_list;
256 spinlock_t fo_llog_list_lock;
259 struct mds_server_data;
261 #define OSC_MAX_RIF_DEFAULT 8
262 #define OSC_MAX_RIF_MAX 64
263 #define OSC_MAX_DIRTY_DEFAULT (4*OSC_MAX_RIF_DEFAULT*PTLRPC_MAX_BRW_SIZE>>20)
264 #define OSC_MAX_DIRTY_MB_MAX 512 /* totally arbitrary */
269 struct obd_import *cl_import;
270 struct semaphore cl_sem;
272 /* max_mds_easize is purely a performance thing so we don't have to
273 * call obd_size_wiremd() all the time. */
274 int cl_max_mds_easize;
275 int cl_max_mds_cookiesize;
278 //struct llog_canceld_ctxt *cl_llcd; /* it's included by obd_llog_ctxt */
279 void *cl_llcd_offset;
281 struct obd_device *cl_mgmtcli_obd;
283 /* the grant values are protected by loi_list_lock below */
284 long cl_dirty; /* all _dirty_ in bytes */
285 long cl_dirty_max; /* allowed w/o rpc */
286 long cl_avail_grant; /* bytes of credit for ost */
287 long cl_lost_grant; /* lost credits (trunc) */
288 struct list_head cl_cache_waiters; /* waiting for cache/grant */
290 /* keep track of objects that have lois that contain pages which
291 * have been queued for async brw. this lock also protects the
292 * lists of osc_client_pages that hang off of the loi */
293 spinlock_t cl_loi_list_lock;
294 struct list_head cl_loi_ready_list;
295 struct list_head cl_loi_write_list;
296 struct list_head cl_loi_read_list;
299 /* just a sum of the loi/lop pending numbers to be exported by /proc */
300 int cl_pending_w_pages;
301 int cl_pending_r_pages;
302 int cl_max_pages_per_rpc;
303 int cl_max_rpcs_in_flight;
304 struct obd_histogram cl_read_rpc_hist;
305 struct obd_histogram cl_write_rpc_hist;
306 struct obd_histogram cl_read_page_hist;
307 struct obd_histogram cl_write_page_hist;
308 struct obd_service_time cl_read_stime;
309 struct obd_service_time cl_write_stime;
310 struct obd_service_time cl_enter_stime;
312 struct mdc_rpc_lock *cl_rpc_lock;
313 struct mdc_rpc_lock *cl_setattr_lock;
314 struct osc_creator cl_oscc;
317 /* Like a client, with some hangers-on. Keep mc_client_obd first so that we
318 * can reuse the various client setup/connect functions. */
320 struct client_obd mc_client_obd; /* nested */
321 struct ptlrpc_thread *mc_ping_thread;
322 struct obd_export *mc_ping_exp; /* XXX single-target */
323 struct list_head mc_registered;
327 #define mc_import mc_client_obd.cl_import
330 struct ptlrpc_service *mds_service;
331 struct ptlrpc_service *mds_setattr_service;
332 struct ptlrpc_service *mds_readpage_service;
333 struct super_block *mds_sb;
334 struct vfsmount *mds_vfsmnt;
335 struct dentry *mds_id_de;
337 int mds_max_cookiesize;
338 struct file *mds_rcvd_filp;
339 struct file *mds_fid_filp;
340 spinlock_t mds_transno_lock;
341 __u64 mds_last_transno;
342 __u64 mds_mount_count;
346 struct semaphore mds_last_fid_sem;
347 int mds_last_fid_changed;
349 struct semaphore mds_epoch_sem;
350 struct lustre_id mds_rootid;
351 struct mds_server_data *mds_server_data;
352 struct dentry *mds_pending_dir;
353 struct dentry *mds_logs_dir;
354 struct dentry *mds_objects_dir;
355 struct llog_handle *mds_cfg_llh;
356 struct obd_device *mds_lov_obd;
357 struct obd_uuid mds_lov_uuid;
359 struct obd_export *mds_lov_exp;
360 int mds_has_lov_desc;
361 struct lov_desc mds_lov_desc;
362 obd_id *mds_lov_objids;
363 int mds_lov_objids_valid;
364 int mds_lov_nextid_set;
365 struct file *mds_lov_objid_filp;
366 spinlock_t mds_lov_lock;
367 unsigned long *mds_client_bitmap;
368 struct semaphore mds_orphan_recovery_sem;
371 int mds_config_version;
374 struct obd_device *mds_lmv_obd;
375 struct obd_export *mds_lmv_exp;
377 struct ptlrpc_service *mds_create_service;
378 struct semaphore mds_lmv_sem;
379 uid_t mds_squash_uid;
380 gid_t mds_squash_gid;
381 ptl_nid_t mds_nosquash_nid;
382 atomic_t mds_real_clients;
383 struct obd_uuid mds_lmv_uuid;
384 struct dentry *mds_id_dir;
386 int mds_lmv_connected;
387 struct dentry *mds_unnamed_dir; /* for mdt_obd_create only */
394 struct lustre_handle eo_nl_lock;
399 * this struct does double-duty acting as either a client or
400 * server instance .. maybe not wise.
404 struct ptlrpc_service *ptlbd_service;
407 struct ptlrpc_client bd_client;
408 struct obd_import *bd_import;
409 struct obd_uuid bd_server_uuid;
410 struct obd_export *bd_exp;
411 int refcount; /* XXX sigh */
415 spinlock_t recovd_lock;
416 struct list_head recovd_managed_items; /* items managed */
417 struct list_head recovd_troubled_items; /* items in recovery */
419 wait_queue_head_t recovd_recovery_waitq;
420 wait_queue_head_t recovd_ctl_waitq;
421 wait_queue_head_t recovd_waitq;
422 struct task_struct *recovd_thread;
428 struct ptlrpc_service *ost_service;
429 struct ptlrpc_service *ost_create_service;
430 struct obd_service_time ost_stimes[6];
433 struct echo_client_obd {
434 struct obd_export *ec_exp; /* the local connection to osc/lov */
436 struct list_head ec_objects;
442 struct obd_export *master_exp; /* local connection to master obd */
443 struct obd_export *cache_exp; /* local connection to cache obd */
444 struct obd_device *master;
445 struct obd_device *cache;
450 struct semaphore sem;
454 struct obd_export *cache_exp; /* local connection to cache obd */
455 struct obd_export *master_exp;
456 struct obd_device *cache_obd;
457 struct obd_device *master_obd;
459 struct cmobd_write_service *write_srv;
462 struct lov_tgt_desc {
463 struct obd_uuid uuid;
465 struct obd_export *ltd_exp;
466 int active; /* is this target up for requests */
471 struct lov_desc desc;
474 int lo_catalog_loaded:1;
475 struct semaphore lov_llog_sem;
476 unsigned long lov_connect_flags;
477 struct lov_tgt_desc *tgts;
480 struct lmv_tgt_desc {
481 struct obd_uuid uuid;
482 struct obd_export *ltd_exp;
483 int active; /* is this target up for requests */
489 struct lmv_desc desc;
490 struct lmv_tgt_desc *tgts;
491 struct obd_uuid cluuid;
492 struct obd_export *exp;
500 struct semaphore init_sem;
503 struct niobuf_local {
508 struct dentry *dentry;
513 /* Don't conflict with on-wire flags OBD_BRW_WRITE, etc */
514 #define N_LOCAL_TEMP_PAGE 0x10000000
516 struct obd_trans_info {
519 /* Only used on the server side for tracking acks. */
520 struct oti_req_ack_lock {
521 struct lustre_handle lock;
525 struct llog_cookie oti_onecookie;
526 struct llog_cookie *oti_logcookies;
530 static inline void oti_alloc_cookies(struct obd_trans_info *oti,int num_cookies)
535 if (num_cookies == 1)
536 oti->oti_logcookies = &oti->oti_onecookie;
538 OBD_ALLOC(oti->oti_logcookies,
539 num_cookies * sizeof(oti->oti_onecookie));
541 oti->oti_numcookies = num_cookies;
544 static inline void oti_free_cookies(struct obd_trans_info *oti)
546 if (!oti || !oti->oti_logcookies)
549 if (oti->oti_logcookies == &oti->oti_onecookie)
550 LASSERT(oti->oti_numcookies == 1);
552 OBD_FREE(oti->oti_logcookies,
553 oti->oti_numcookies * sizeof(oti->oti_onecookie));
554 oti->oti_logcookies = NULL;
555 oti->oti_numcookies = 0;
560 LLOG_CONFIG_ORIG_CTXT = 0,
561 LLOG_CONFIG_REPL_CTXT = 1,
562 LLOG_UNLINK_ORIG_CTXT = 2,
563 LLOG_UNLINK_REPL_CTXT = 3,
564 LLOG_SIZE_ORIG_CTXT = 4,
565 LLOG_SIZE_REPL_CTXT = 5,
566 LLOG_MD_ORIG_CTXT = 6,
567 LLOG_MD_REPL_CTXT = 7,
568 LLOG_RD1_ORIG_CTXT = 8,
569 LLOG_RD1_REPL_CTXT = 9,
570 LLOG_TEST_ORIG_CTXT = 10,
571 LLOG_TEST_REPL_CTXT = 11,
572 LLOG_REINT_ORIG_CTXT = 12,
577 struct llog_ctxt *llog_ctxt[LLOG_MAX_CTXTS];
580 struct target_recovery_data {
581 svc_handler_t trd_recovery_handler;
582 pid_t trd_processing_task;
583 struct completion trd_starting;
584 struct completion trd_finishing;
587 /* corresponds to one of the obd's */
589 struct obd_type *obd_type;
591 /* common and UUID name of this device */
593 struct obd_uuid obd_uuid;
596 unsigned int obd_attached:1, obd_set_up:1, obd_recovering:1,
597 obd_abort_recovery:1, obd_replayable:1, obd_no_transno:1,
598 obd_no_recov:1, obd_stopping:1;
599 atomic_t obd_refcount;
600 wait_queue_head_t obd_refcount_waitq;
601 struct proc_dir_entry *obd_proc_entry;
602 struct list_head obd_exports;
604 struct ldlm_namespace *obd_namespace;
605 struct ptlrpc_client obd_ldlm_client; /* XXX OST/MDS only */
606 /* a spinlock is OK for what we do now, may need a semaphore later */
607 spinlock_t obd_dev_lock;
608 __u64 obd_last_committed;
609 struct fsfilt_operations *obd_fsops;
610 spinlock_t obd_osfs_lock;
611 struct obd_statfs obd_osfs;
612 unsigned long obd_osfs_age;
613 struct lvfs_run_ctxt obd_lvfs_ctxt;
614 struct obd_llogs obd_llogs;
615 struct llog_ctxt *obd_llog_ctxt[LLOG_MAX_CTXTS];
616 struct obd_device *obd_observer;
617 struct obd_export *obd_self_export;
619 struct target_recovery_data obd_recovery_data;
620 /* XXX encapsulate all this recovery data into target_recovery_data */
621 int obd_max_recoverable_clients;
622 int obd_connected_clients;
623 int obd_recoverable_clients;
624 spinlock_t obd_processing_task_lock;
625 __u64 obd_next_recovery_transno;
626 int obd_replayed_requests;
627 int obd_requests_queued_for_recovery;
628 wait_queue_head_t obd_next_transno_waitq;
629 struct list_head obd_uncommitted_replies;
630 spinlock_t obd_uncommitted_replies_lock;
631 struct timer_list obd_recovery_timer;
632 struct list_head obd_recovery_queue;
633 struct list_head obd_delayed_reply_queue;
634 time_t obd_recovery_start;
635 time_t obd_recovery_end;
638 struct filter_obd filter;
640 struct client_obd cli;
642 struct echo_client_obd echo_client;
643 struct echo_obd echo;
644 struct recovd_obd recovd;
646 struct cache_obd cobd;
647 struct ptlbd_obd ptlbd;
648 struct mgmtcli_obd mgmtcli;
653 /* fields used by LProcFS */
654 unsigned int obd_cntr_base;
655 struct lprocfs_stats *obd_stats;
656 unsigned int md_cntr_base;
657 struct lprocfs_stats *md_stats;
659 struct proc_dir_entry *obd_svc_procroot;
660 struct lprocfs_stats *obd_svc_stats;
663 #define OBD_OPT_FORCE (1 << 0)
664 #define OBD_OPT_FAILOVER (1 << 1)
665 #define OBD_OPT_REAL_CLIENT (1 << 2)
666 #define OBD_OPT_MDS_CONNECTION (1 << 3)
668 #define OBD_LLOG_FL_SENDNOW (1 << 0)
669 #define OBD_LLOG_FL_CREATE (1 << 1)
674 struct module *o_owner;
675 int (*o_iocontrol)(unsigned int cmd, struct obd_export *exp, int len,
676 void *karg, void *uarg);
677 int (*o_get_info)(struct obd_export *, __u32 keylen, void *key,
678 __u32 *vallen, void *val);
679 int (*o_set_info)(struct obd_export *, __u32 keylen, void *key,
680 __u32 vallen, void *val);
681 int (*o_attach)(struct obd_device *dev, obd_count len, void *data);
682 int (*o_detach)(struct obd_device *dev);
683 int (*o_setup) (struct obd_device *dev, obd_count len, void *data);
684 int (*o_precleanup)(struct obd_device *dev, int flags);
685 int (*o_cleanup)(struct obd_device *dev, int flags);
686 int (*o_process_config)(struct obd_device *dev, obd_count len,
688 int (*o_postrecov)(struct obd_device *dev);
689 int (*o_add_conn)(struct obd_import *imp, struct obd_uuid *uuid,
691 int (*o_del_conn)(struct obd_import *imp, struct obd_uuid *uuid);
692 int (*o_connect)(struct lustre_handle *conn, struct obd_device *src,
693 struct obd_uuid *cluuid, unsigned long flags);
694 int (*o_connect_post)(struct obd_export *exp, unsigned long flags);
695 int (*o_disconnect)(struct obd_export *exp, unsigned long flags);
697 int (*o_statfs)(struct obd_device *obd, struct obd_statfs *osfs,
698 unsigned long max_age);
699 int (*o_packmd)(struct obd_export *exp, struct lov_mds_md **disk_tgt,
700 struct lov_stripe_md *mem_src);
701 int (*o_unpackmd)(struct obd_export *exp,struct lov_stripe_md **mem_tgt,
702 struct lov_mds_md *disk_src, int disk_len);
703 int (*o_revalidate_md)(struct obd_export *exp, struct obdo *oa,
704 struct lov_stripe_md *ea,
705 struct obd_trans_info *oti);
706 int (*o_preallocate)(struct lustre_handle *, obd_count *req,
708 int (*o_create)(struct obd_export *exp, struct obdo *oa,
709 struct lov_stripe_md **ea, struct obd_trans_info *oti);
710 int (*o_destroy)(struct obd_export *exp, struct obdo *oa,
711 struct lov_stripe_md *ea, struct obd_trans_info *oti);
712 int (*o_setattr)(struct obd_export *exp, struct obdo *oa,
713 struct lov_stripe_md *ea, struct obd_trans_info *oti);
714 int (*o_getattr)(struct obd_export *exp, struct obdo *oa,
715 struct lov_stripe_md *ea);
716 int (*o_getattr_async)(struct obd_export *exp, struct obdo *oa,
717 struct lov_stripe_md *ea,
718 struct ptlrpc_request_set *set);
719 int (*o_brw)(int rw, struct obd_export *exp, struct obdo *oa,
720 struct lov_stripe_md *ea, obd_count oa_bufs,
721 struct brw_page *pgarr, struct obd_trans_info *oti);
722 int (*o_brw_async)(int rw, struct obd_export *exp, struct obdo *oa,
723 struct lov_stripe_md *ea, obd_count oa_bufs,
724 struct brw_page *pgarr, struct ptlrpc_request_set *,
725 struct obd_trans_info *oti);
726 int (*o_prep_async_page)(struct obd_export *exp,
727 struct lov_stripe_md *lsm,
728 struct lov_oinfo *loi,
729 struct page *page, obd_off offset,
730 struct obd_async_page_ops *ops, void *data,
732 int (*o_queue_async_io)(struct obd_export *exp,
733 struct lov_stripe_md *lsm,
734 struct lov_oinfo *loi, void *cookie,
735 int cmd, obd_off off, int count,
736 obd_flags brw_flags, obd_flags async_flags);
737 int (*o_queue_group_io)(struct obd_export *exp,
738 struct lov_stripe_md *lsm,
739 struct lov_oinfo *loi,
740 struct obd_io_group *oig,
741 void *cookie, int cmd, obd_off off, int count,
742 obd_flags brw_flags, obd_flags async_flags);
743 int (*o_trigger_group_io)(struct obd_export *exp,
744 struct lov_stripe_md *lsm,
745 struct lov_oinfo *loi,
746 struct obd_io_group *oig);
747 int (*o_set_async_flags)(struct obd_export *exp,
748 struct lov_stripe_md *lsm,
749 struct lov_oinfo *loi, void *cookie,
750 obd_flags async_flags);
751 int (*o_teardown_async_page)(struct obd_export *exp,
752 struct lov_stripe_md *lsm,
753 struct lov_oinfo *loi, void *cookie);
754 int (*o_punch)(struct obd_export *exp, struct obdo *oa,
755 struct lov_stripe_md *ea, obd_size start,
756 obd_size end, struct obd_trans_info *oti);
757 int (*o_sync)(struct obd_export *exp, struct obdo *oa,
758 struct lov_stripe_md *ea, obd_size start, obd_size end);
759 int (*o_migrate)(struct lustre_handle *conn, struct lov_stripe_md *dst,
760 struct lov_stripe_md *src, obd_size start,
761 obd_size end, struct obd_trans_info *oti);
762 int (*o_copy)(struct lustre_handle *dstconn, struct lov_stripe_md *dst,
763 struct lustre_handle *srconn, struct lov_stripe_md *src,
764 obd_size start, obd_size end, struct obd_trans_info *);
765 int (*o_iterate)(struct lustre_handle *conn,
766 int (*)(obd_id, obd_gr, void *),
767 obd_id *startid, obd_gr group, void *data);
768 int (*o_preprw)(int cmd, struct obd_export *exp, struct obdo *oa,
769 int objcount, struct obd_ioobj *obj,
770 int niocount, struct niobuf_remote *remote,
771 struct niobuf_local *local, struct obd_trans_info *oti);
772 int (*o_commitrw)(int cmd, struct obd_export *exp, struct obdo *oa,
773 int objcount, struct obd_ioobj *obj,
774 int niocount, struct niobuf_local *local,
775 struct obd_trans_info *oti, int rc);
776 int (*o_do_cow)(struct obd_export *exp, struct obd_ioobj *obj,
777 int objcount, struct niobuf_remote *rnb);
778 int (*o_write_extents)(struct obd_export *exp, struct obd_ioobj *obj,
779 int objcount, int niocount,
780 struct niobuf_local *local,int rc);
781 int (*o_enqueue)(struct obd_export *, struct lov_stripe_md *,
782 __u32 type, ldlm_policy_data_t *, __u32 mode,
783 int *flags, void *bl_cb, void *cp_cb, void *gl_cb,
784 void *data, __u32 lvb_len, void *lvb_swabber,
785 struct lustre_handle *lockh);
786 int (*o_match)(struct obd_export *, struct lov_stripe_md *, __u32 type,
787 ldlm_policy_data_t *, __u32 mode, int *flags, void *data,
788 struct lustre_handle *lockh);
789 int (*o_change_cbdata)(struct obd_export *, struct lov_stripe_md *,
790 ldlm_iterator_t it, void *data);
791 int (*o_cancel)(struct obd_export *, struct lov_stripe_md *md,
792 __u32 mode, struct lustre_handle *);
793 int (*o_cancel_unused)(struct obd_export *, struct lov_stripe_md *,
794 int flags, void *opaque);
795 int (*o_san_preprw)(int cmd, struct obd_export *exp,
796 struct obdo *oa, int objcount,
797 struct obd_ioobj *obj, int niocount,
798 struct niobuf_remote *remote);
799 int (*o_init_export)(struct obd_export *exp);
800 int (*o_destroy_export)(struct obd_export *exp);
802 /* llog related obd_methods */
803 int (*o_llog_init)(struct obd_device *, struct obd_llogs *,
804 struct obd_device *, int, struct llog_catid *);
805 int (*o_llog_finish)(struct obd_device *, struct obd_llogs *, int);
806 int (*o_llog_connect)(struct obd_export *, struct llogd_conn_body *);
809 /* metadata-only methods */
810 int (*o_pin)(struct obd_export *, obd_id ino, __u32 gen, int type,
811 struct obd_client_handle *, int flag);
812 int (*o_unpin)(struct obd_export *, struct obd_client_handle *, int);
814 int (*o_import_event)(struct obd_device *, struct obd_import *,
815 enum obd_import_event);
817 int (*o_notify)(struct obd_device *obd, struct obd_device *watched,
818 int active, void *data);
820 /* this method is needed for cmobd to make say to LMV "get ready" when
821 * master obd is LMV. This is needed, because LMV is initialized in
822 * "defered" manner to let all MDSs to be set up first. */
823 int (*o_getready)(struct obd_export *exp);
824 int (*o_init_ea_size)(struct obd_export *, int, int);
827 * NOTE: If adding ops, add another LPROCFS_OBD_OP_INIT() line
828 * to lprocfs_alloc_obd_stats() in obdclass/lprocfs_status.c.
829 * Also, add a wrapper function in include/linux/obd_class.h.
834 int (*m_getstatus)(struct obd_export *, struct lustre_id *);
835 int (*m_change_cbdata)(struct obd_export *, struct lustre_id *,
836 ldlm_iterator_t, void *);
837 int (*m_change_cbdata_name)(struct obd_export *, struct lustre_id *,
838 char *, int, struct lustre_id *,
839 ldlm_iterator_t, void *);
840 int (*m_close)(struct obd_export *, struct obdo *,
841 struct obd_client_handle *,
842 struct ptlrpc_request **);
843 int (*m_create)(struct obd_export *, struct mdc_op_data *,
844 const void *, int, int, __u32, __u32,
845 __u64, struct ptlrpc_request **);
846 int (*m_done_writing)(struct obd_export *, struct obdo *);
847 int (*m_enqueue)(struct obd_export *, int, struct lookup_intent *,
848 int, struct mdc_op_data *, struct lustre_handle *,
849 void *, int, ldlm_completion_callback,
850 ldlm_blocking_callback, void *);
851 int (*m_getattr)(struct obd_export *, struct lustre_id *,
853 struct ptlrpc_request **);
854 int (*m_getattr_lock)(struct obd_export *, struct lustre_id *,
856 unsigned int, struct ptlrpc_request **);
857 int (*m_intent_lock)(struct obd_export *,
858 struct lustre_id *, const char *, int,
859 void *, int, struct lustre_id *,
860 struct lookup_intent *, int,
861 struct ptlrpc_request **,
862 ldlm_blocking_callback);
863 int (*m_link)(struct obd_export *, struct mdc_op_data *,
864 struct ptlrpc_request **);
865 int (*m_rename)(struct obd_export *, struct mdc_op_data *,
866 const char *, int, const char *, int,
867 struct ptlrpc_request **);
868 int (*m_setattr)(struct obd_export *, struct mdc_op_data *,
869 struct iattr *, void *, int , void *, int,
870 struct ptlrpc_request **);
871 int (*m_sync)(struct obd_export *, struct lustre_id *,
872 struct ptlrpc_request **);
873 int (*m_readpage)(struct obd_export *, struct lustre_id *,
874 __u64, struct page *, struct ptlrpc_request **);
875 int (*m_unlink)(struct obd_export *, struct mdc_op_data *,
876 struct ptlrpc_request **);
877 int (*m_valid_attrs)(struct obd_export *, struct lustre_id *);
879 struct obd_device *(*m_get_real_obd)(struct obd_export *,
880 char *name, int len);
882 int (*m_req2lustre_md)(struct obd_export *exp,
883 struct ptlrpc_request *req, unsigned int offset,
884 struct obd_export *osc_exp, struct lustre_md *md);
885 int (*m_set_open_replay_data)(struct obd_export *exp,
886 struct obd_client_handle *och,
887 struct ptlrpc_request *open_req);
888 int (*m_clear_open_replay_data)(struct obd_export *exp,
889 struct obd_client_handle *och);
890 int (*m_store_inode_generation)(struct obd_export *exp,
891 struct ptlrpc_request *req, int reqoff,
893 int (*m_set_lock_data)(struct obd_export *exp, __u64 *l, void *data);
895 int (*m_delete_inode)(struct obd_export *, struct lustre_id *);
898 * NOTE: If adding ops, add another LPROCFS_MD_OP_INIT() line to
899 * lprocfs_alloc_md_stats() in obdclass/lprocfs_status.c. Also, add a
900 * wrapper function in include/linux/obd_class.h.
904 static inline void obd_transno_commit_cb(struct obd_device *obd,
905 __u64 transno, int error)
908 CERROR("%s: transno "LPD64" commit error: %d\n",
909 obd->obd_name, transno, error);
913 CDEBUG(D_HA, "%s: transno "LPD64" committed\n",
914 obd->obd_name, transno);
916 if (transno > obd->obd_last_committed) {
917 obd->obd_last_committed = transno;
918 ptlrpc_commit_replies (obd);