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_MAX_NR 50
26 # include <linux/fs.h>
27 # include <linux/list.h>
28 # include <linux/sched.h> /* for struct task_struct, for current.h */
29 # include <asm/current.h> /* for smp_lock.h */
30 # include <linux/smp_lock.h>
31 # include <linux/proc_fs.h>
32 # include <linux/mount.h>
35 #include <linux/lvfs.h>
36 #include <linux/lustre_lib.h>
37 #include <linux/lustre_idl.h>
38 #include <linux/lustre_export.h>
40 /* this is really local to the OSC */
41 struct loi_oap_pages {
42 struct list_head lop_pending;
44 struct list_head lop_urgent;
45 struct list_head lop_pending_group;
48 struct lov_oinfo { /* per-stripe data structure */
49 __u64 loi_id; /* object ID on the target OST */
50 __u64 loi_gr; /* object group on the target OST */
51 int loi_ost_idx; /* OST stripe index in lov_tgt_desc->tgts */
52 int loi_ost_gen; /* generation of this loi_ost_idx */
54 /* used by the osc to keep track of what objects to build into rpcs */
55 struct loi_oap_pages loi_read_lop;
56 struct loi_oap_pages loi_write_lop;
57 /* _cli_ is poorly named, it should be _ready_ */
58 struct list_head loi_cli_item;
59 struct list_head loi_write_item;
60 struct list_head loi_read_item;
62 unsigned loi_kms_valid:1;
63 __u64 loi_kms; /* known minimum size */
64 __u64 loi_rss; /* recently seen size */
65 __u64 loi_mtime; /* recently seen mtime */
66 __u64 loi_blocks; /* recently seen blocks */
69 static inline void loi_init(struct lov_oinfo *loi)
71 INIT_LIST_HEAD(&loi->loi_read_lop.lop_pending);
72 INIT_LIST_HEAD(&loi->loi_read_lop.lop_urgent);
73 INIT_LIST_HEAD(&loi->loi_read_lop.lop_pending_group);
74 INIT_LIST_HEAD(&loi->loi_write_lop.lop_pending);
75 INIT_LIST_HEAD(&loi->loi_write_lop.lop_urgent);
76 INIT_LIST_HEAD(&loi->loi_write_lop.lop_pending_group);
77 INIT_LIST_HEAD(&loi->loi_cli_item);
78 INIT_LIST_HEAD(&loi->loi_write_item);
79 INIT_LIST_HEAD(&loi->loi_read_item);
82 struct lov_stripe_md {
84 __u64 lsm_object_id; /* lov object id */
85 __u64 lsm_object_gr; /* lov object id */
86 __u64 lsm_maxbytes; /* maximum possible file size */
87 unsigned long lsm_xfersize; /* optimal transfer size */
89 /* LOV-private members start here -- only for use in lov/. */
91 __u32 lsm_stripe_size; /* size of the stripe */
92 __u32 lsm_pattern; /* striping pattern (RAID0, RAID1) */
93 unsigned lsm_stripe_count; /* number of objects being striped over */
94 struct lov_oinfo lsm_oinfo[0];
97 static inline void dump_lsm(int level, struct lov_stripe_md *lsm)
100 CDEBUG(level, "objid "LPX64"/"LPU64", maxbytes "LPX64", magic 0x%08X, "
101 "stripe_size %u, stripe_count %u\n",
102 lsm->lsm_object_id, lsm->lsm_object_gr, lsm->lsm_maxbytes,
103 lsm->lsm_magic, lsm->lsm_stripe_size, lsm->lsm_stripe_count);
104 for (i = 0; i < lsm->lsm_stripe_count; i++)
105 CDEBUG(level, "idx %u ostidx %u/%u object "LPU64"/"LPU64"\n",
106 i, lsm->lsm_oinfo[i].loi_ost_idx,
107 lsm->lsm_oinfo[i].loi_ost_gen,
108 lsm->lsm_oinfo[i].loi_id, lsm->lsm_oinfo[i].loi_gr);
112 struct list_head typ_chain;
113 struct obd_ops *typ_ops;
114 struct md_ops *typ_md_ops;
115 struct proc_dir_entry *typ_procroot;
121 obd_off disk_offset; /* modulo PAGE_SIZE */
122 obd_off page_offset; /* modulo PAGE_SIZE (obviously) */
129 ASYNC_READY = 0x1, /* ap_make_ready will not be called before this
130 page is added to an rpc */
132 ASYNC_COUNT_STABLE = 0x4, /* ap_refresh_count will not be called
133 to give the caller a chance to update
134 or cancel the size of the io */
135 ASYNC_GROUP_SYNC = 0x8, /* ap_completion will not be called, instead
136 the page is accounted for in the
137 obd_io_group given to
138 obd_queue_group_io */
141 struct obd_async_page_ops {
142 int (*ap_make_ready)(void *data, int cmd);
143 int (*ap_refresh_count)(void *data, int cmd);
144 void (*ap_fill_obdo)(void *data, int cmd, struct obdo *oa);
145 void (*ap_completion)(void *data, int cmd, struct obdo *oa, int rc);
148 /* the `oig' is passed down from a caller of obd rw methods. the callee
149 * records enough state such that the caller can sleep on the oig and
150 * be woken when all the callees have finished their work */
151 struct obd_io_group {
153 atomic_t oig_refcount;
156 struct list_head oig_occ_list;
157 wait_queue_head_t oig_waitq;
160 /* the oig callback context lets the callee of obd rw methods register
161 * for callbacks from the caller. */
162 struct oig_callback_context {
163 struct list_head occ_oig_item;
164 /* called when the caller has received a signal while sleeping.
165 * callees of this method are encouraged to abort their state
166 * in the oig. This may be called multiple times. */
167 void (*occ_interrupted)(struct oig_callback_context *occ);
171 /* if we find more consumers this could be generalized */
172 #define OBD_HIST_MAX 32
173 struct obd_histogram {
175 unsigned long oh_buckets[OBD_HIST_MAX];
178 /* reports average service time with the help of lprocfs_status.c */
179 struct obd_service_time {
185 struct ost_server_data;
187 #define FILTER_SUBDIR_COUNT 32 /* set to zero for no subdirs */
189 #define FILTER_GROUP_LLOG 1
190 #define FILTER_GROUP_ECHO 2
191 #define FILTER_GROUP_FIRST_MDS 3
193 struct filter_subdirs {
194 struct dentry *dentry[FILTER_SUBDIR_COUNT];
197 struct filter_group_llog {
198 struct list_head list;
200 struct obd_llogs *llogs;
201 struct obd_export *exp;
205 const char *fo_fstype;
206 struct super_block *fo_sb;
207 struct vfsmount *fo_vfsmnt;
210 struct dentry *fo_dentry_O; /* the "O"bject directory dentry */
211 struct dentry **fo_groups; /* dentries for each group dir */
212 struct filter_subdirs *fo_subdirs; /* subdir array per group */
213 __u64 *fo_last_objids; /* per-group last created objid */
214 struct file **fo_last_objid_files;
215 struct semaphore fo_init_lock; /* group initialization lock */
216 int fo_committed_group;
218 spinlock_t fo_objidlock; /* protect fo_lastobjid increment */
219 spinlock_t fo_translock; /* protect fsd_last_rcvd increment */
220 struct file *fo_rcvd_filp;
221 struct filter_server_data *fo_fsd;
222 unsigned long *fo_last_rcvd_slots;
223 __u64 fo_mount_count;
225 unsigned long fo_destroys_in_progress;
226 struct semaphore fo_create_locks[32];
228 struct file_operations *fo_fop;
229 struct inode_operations *fo_iop;
230 struct address_space_operations *fo_aops;
232 struct list_head fo_export_list;
235 obd_size fo_tot_dirty; /* protected by obd_osfs_lock */
236 obd_size fo_tot_granted; /* all values in bytes */
237 obd_size fo_tot_pending;
239 obd_size fo_readcache_max_filesize;
241 struct obd_import *fo_mdc_imp;
242 struct obd_uuid fo_mdc_uuid;
243 struct lustre_handle fo_mdc_conn;
245 struct semaphore fo_alloc_lock;
247 struct obd_histogram fo_r_pages;
248 struct obd_histogram fo_w_pages;
249 struct obd_histogram fo_r_discont_pages;
250 struct obd_histogram fo_w_discont_pages;
251 struct obd_histogram fo_r_discont_blocks;
252 struct obd_histogram fo_w_discont_blocks;
254 struct list_head fo_llog_list;
255 spinlock_t fo_llog_list_lock;
258 struct mds_server_data;
260 #define OSC_MAX_RIF_DEFAULT 8
261 #define OSC_MAX_RIF_MAX 64
262 #define OSC_MAX_DIRTY_DEFAULT (4*OSC_MAX_RIF_DEFAULT*PTLRPC_MAX_BRW_SIZE>>20)
263 #define OSC_MAX_DIRTY_MB_MAX 512 /* totally arbitrary */
268 struct obd_import *cl_import;
269 struct semaphore cl_sem;
271 /* max_mds_easize is purely a performance thing so we don't have to
272 * call obd_size_wiremd() all the time. */
273 int cl_max_mds_easize;
274 int cl_max_mds_cookiesize;
277 /* security flavors */
279 __u32 cl_sec_subflavor;
280 __u32 cl_nllu; /* non lustre local user */
281 __u32 cl_nllg; /* non lustre local group */
283 //struct llog_canceld_ctxt *cl_llcd; /* it's included by obd_llog_ctxt */
284 void *cl_llcd_offset;
286 struct obd_device *cl_mgmtcli_obd;
288 /* the grant values are protected by loi_list_lock below */
289 long cl_dirty; /* all _dirty_ in bytes */
290 long cl_dirty_max; /* allowed w/o rpc */
291 long cl_avail_grant; /* bytes of credit for ost */
292 long cl_lost_grant; /* lost credits (trunc) */
293 struct list_head cl_cache_waiters; /* waiting for cache/grant */
295 /* keep track of objects that have lois that contain pages which
296 * have been queued for async brw. this lock also protects the
297 * lists of osc_client_pages that hang off of the loi */
298 spinlock_t cl_loi_list_lock;
299 struct list_head cl_loi_ready_list;
300 struct list_head cl_loi_write_list;
301 struct list_head cl_loi_read_list;
304 /* just a sum of the loi/lop pending numbers to be exported by /proc */
305 int cl_pending_w_pages;
306 int cl_pending_r_pages;
307 int cl_max_pages_per_rpc;
308 int cl_max_rpcs_in_flight;
309 struct obd_histogram cl_read_rpc_hist;
310 struct obd_histogram cl_write_rpc_hist;
311 struct obd_histogram cl_read_page_hist;
312 struct obd_histogram cl_write_page_hist;
313 struct obd_service_time cl_read_stime;
314 struct obd_service_time cl_write_stime;
315 struct obd_service_time cl_enter_stime;
317 struct mdc_rpc_lock *cl_rpc_lock;
318 struct mdc_rpc_lock *cl_setattr_lock;
319 struct osc_creator cl_oscc;
322 /* Like a client, with some hangers-on. Keep mc_client_obd first so that we
323 * can reuse the various client setup/connect functions. */
325 struct client_obd mc_client_obd; /* nested */
326 struct ptlrpc_thread *mc_ping_thread;
327 struct obd_export *mc_ping_exp; /* XXX single-target */
328 struct list_head mc_registered;
332 #define mc_import mc_client_obd.cl_import
335 struct ptlrpc_service *mds_service;
336 struct ptlrpc_service *mds_setattr_service;
337 struct ptlrpc_service *mds_readpage_service;
338 struct super_block *mds_sb;
339 struct vfsmount *mds_vfsmnt;
340 struct dentry *mds_id_de;
342 int mds_max_cookiesize;
343 struct file *mds_rcvd_filp;
344 struct file *mds_fid_filp;
345 struct file *mds_virtid_filp;
346 spinlock_t mds_transno_lock;
347 __u64 mds_last_transno;
348 __u64 mds_mount_count;
352 __u64 mds_virtid_fid;
353 spinlock_t mds_last_fid_lock;
355 struct semaphore mds_epoch_sem;
356 struct lustre_id mds_rootid;
357 struct mds_server_data *mds_server_data;
358 struct dentry *mds_pending_dir;
359 struct dentry *mds_logs_dir;
360 struct dentry *mds_objects_dir;
361 struct llog_handle *mds_cfg_llh;
363 struct obd_device *mds_dt_obd;
364 struct obd_uuid mds_dt_uuid;
365 struct obd_export *mds_dt_exp;
367 struct lov_desc mds_dt_desc;
368 obd_id *mds_dt_objids;
369 int mds_dt_objids_valid;
370 int mds_dt_nextid_set;
371 struct file *mds_dt_objid_filp;
372 spinlock_t mds_dt_lock;
373 unsigned long *mds_client_bitmap;
374 struct semaphore mds_orphan_recovery_sem;
377 int mds_config_version;
380 struct obd_device *mds_md_obd;
381 struct obd_export *mds_md_exp;
382 struct semaphore mds_md_sem;
383 struct obd_uuid mds_md_uuid;
384 int mds_md_connected;
386 struct ptlrpc_service *mds_create_service;
387 uid_t mds_squash_uid;
388 gid_t mds_squash_gid;
389 ptl_nid_t mds_nosquash_nid;
390 atomic_t mds_real_clients;
391 struct dentry *mds_id_dir;
393 struct dentry *mds_unnamed_dir; /* for mdt_obd_create only */
395 /* security related */
404 struct lustre_handle eo_nl_lock;
409 * this struct does double-duty acting as either a client or
410 * server instance .. maybe not wise.
414 struct ptlrpc_service *ptlbd_service;
417 struct ptlrpc_client bd_client;
418 struct obd_import *bd_import;
419 struct obd_uuid bd_server_uuid;
420 struct obd_export *bd_exp;
421 int refcount; /* XXX sigh */
425 spinlock_t recovd_lock;
426 struct list_head recovd_managed_items; /* items managed */
427 struct list_head recovd_troubled_items; /* items in recovery */
429 wait_queue_head_t recovd_recovery_waitq;
430 wait_queue_head_t recovd_ctl_waitq;
431 wait_queue_head_t recovd_waitq;
432 struct task_struct *recovd_thread;
438 struct ptlrpc_service *ost_service;
439 struct ptlrpc_service *ost_create_service;
440 struct obd_service_time ost_stimes[6];
443 struct echo_client_obd {
444 struct obd_export *ec_exp; /* the local connection to osc/lov */
446 struct list_head ec_objects;
452 struct obd_export *master_exp; /* local connection to master obd */
453 struct obd_export *cache_exp; /* local connection to cache obd */
454 struct obd_device *master;
455 struct obd_device *cache;
460 struct semaphore sem;
464 struct obd_export *cache_exp; /* local connection to cache obd */
465 struct obd_export *master_exp;
466 struct obd_device *cache_obd;
467 struct obd_device *master_obd;
469 struct cmobd_write_service *write_srv;
472 struct lov_tgt_desc {
473 struct obd_uuid uuid;
475 struct obd_export *ltd_exp;
476 int active; /* is this target up for requests */
481 struct lov_desc desc;
484 int lo_catalog_loaded:1;
485 struct semaphore lov_llog_sem;
486 unsigned long lov_connect_flags;
487 struct lov_tgt_desc *tgts;
490 struct lmv_tgt_desc {
491 struct obd_uuid uuid;
492 struct obd_export *ltd_exp;
493 int active; /* is this target up for requests */
499 struct lmv_desc desc;
500 struct lmv_tgt_desc *tgts;
501 struct obd_uuid cluuid;
502 struct obd_export *exp;
510 struct semaphore init_sem;
513 struct niobuf_local {
518 struct dentry *dentry;
523 /* Don't conflict with on-wire flags OBD_BRW_WRITE, etc */
524 #define N_LOCAL_TEMP_PAGE 0x10000000
526 struct obd_trans_info {
529 /* Only used on the server side for tracking acks. */
530 struct oti_req_ack_lock {
531 struct lustre_handle lock;
535 struct llog_cookie oti_onecookie;
536 struct llog_cookie *oti_logcookies;
540 static inline void oti_alloc_cookies(struct obd_trans_info *oti,int num_cookies)
545 if (num_cookies == 1)
546 oti->oti_logcookies = &oti->oti_onecookie;
548 OBD_ALLOC(oti->oti_logcookies,
549 num_cookies * sizeof(oti->oti_onecookie));
551 oti->oti_numcookies = num_cookies;
554 static inline void oti_free_cookies(struct obd_trans_info *oti)
556 if (!oti || !oti->oti_logcookies)
559 if (oti->oti_logcookies == &oti->oti_onecookie)
560 LASSERT(oti->oti_numcookies == 1);
562 OBD_FREE(oti->oti_logcookies,
563 oti->oti_numcookies * sizeof(oti->oti_onecookie));
564 oti->oti_logcookies = NULL;
565 oti->oti_numcookies = 0;
570 LLOG_CONFIG_ORIG_CTXT = 0,
571 LLOG_CONFIG_REPL_CTXT = 1,
572 LLOG_UNLINK_ORIG_CTXT = 2,
573 LLOG_UNLINK_REPL_CTXT = 3,
574 LLOG_SIZE_ORIG_CTXT = 4,
575 LLOG_SIZE_REPL_CTXT = 5,
576 LLOG_MD_ORIG_CTXT = 6,
577 LLOG_MD_REPL_CTXT = 7,
578 LLOG_RD1_ORIG_CTXT = 8,
579 LLOG_RD1_REPL_CTXT = 9,
580 LLOG_TEST_ORIG_CTXT = 10,
581 LLOG_TEST_REPL_CTXT = 11,
582 LLOG_REINT_ORIG_CTXT = 12,
587 struct llog_ctxt *llog_ctxt[LLOG_MAX_CTXTS];
590 struct target_recovery_data {
591 svc_handler_t trd_recovery_handler;
592 pid_t trd_processing_task;
593 struct completion trd_starting;
594 struct completion trd_finishing;
597 /* corresponds to one of the obd's */
599 struct obd_type *obd_type;
601 /* common and UUID name of this device */
603 struct obd_uuid obd_uuid;
606 unsigned int obd_attached:1, obd_set_up:1, obd_recovering:1,
607 obd_abort_recovery:1, obd_replayable:1, obd_no_transno:1,
608 obd_no_recov:1, obd_stopping:1;
609 atomic_t obd_refcount;
610 wait_queue_head_t obd_refcount_waitq;
611 struct proc_dir_entry *obd_proc_entry;
612 struct list_head obd_exports;
614 struct ldlm_namespace *obd_namespace;
615 struct ptlrpc_client obd_ldlm_client; /* XXX OST/MDS only */
616 /* a spinlock is OK for what we do now, may need a semaphore later */
617 spinlock_t obd_dev_lock;
618 __u64 obd_last_committed;
619 struct fsfilt_operations *obd_fsops;
620 spinlock_t obd_osfs_lock;
621 struct obd_statfs obd_osfs;
622 unsigned long obd_osfs_age;
623 struct lvfs_run_ctxt obd_lvfs_ctxt;
624 struct obd_llogs obd_llogs;
625 struct llog_ctxt *obd_llog_ctxt[LLOG_MAX_CTXTS];
626 struct obd_device *obd_observer;
627 struct obd_export *obd_self_export;
629 struct target_recovery_data obd_recovery_data;
630 /* XXX encapsulate all this recovery data into target_recovery_data */
631 int obd_max_recoverable_clients;
632 int obd_connected_clients;
633 int obd_recoverable_clients;
634 spinlock_t obd_processing_task_lock;
635 __u64 obd_next_recovery_transno;
636 int obd_replayed_requests;
637 int obd_requests_queued_for_recovery;
638 wait_queue_head_t obd_next_transno_waitq;
639 struct list_head obd_uncommitted_replies;
640 spinlock_t obd_uncommitted_replies_lock;
641 struct timer_list obd_recovery_timer;
642 struct list_head obd_recovery_queue;
643 struct list_head obd_delayed_reply_queue;
644 time_t obd_recovery_start;
645 time_t obd_recovery_end;
648 struct filter_obd filter;
650 struct client_obd cli;
652 struct echo_client_obd echo_client;
653 struct echo_obd echo;
654 struct recovd_obd recovd;
656 struct cache_obd cobd;
657 struct ptlbd_obd ptlbd;
658 struct mgmtcli_obd mgmtcli;
663 /* fields used by LProcFS */
664 unsigned int obd_cntr_base;
665 struct lprocfs_stats *obd_stats;
666 unsigned int md_cntr_base;
667 struct lprocfs_stats *md_stats;
669 struct proc_dir_entry *obd_svc_procroot;
670 struct lprocfs_stats *obd_svc_stats;
673 #define OBD_OPT_FORCE (1 << 0)
674 #define OBD_OPT_FAILOVER (1 << 1)
675 #define OBD_OPT_REAL_CLIENT (1 << 2)
676 #define OBD_OPT_MDS_CONNECTION (1 << 3)
678 #define OBD_LLOG_FL_SENDNOW (1 << 0)
679 #define OBD_LLOG_FL_CREATE (1 << 1)
684 struct module *o_owner;
685 int (*o_iocontrol)(unsigned int cmd, struct obd_export *exp, int len,
686 void *karg, void *uarg);
687 int (*o_get_info)(struct obd_export *, __u32 keylen, void *key,
688 __u32 *vallen, void *val);
689 int (*o_set_info)(struct obd_export *, __u32 keylen, void *key,
690 __u32 vallen, void *val);
691 int (*o_attach)(struct obd_device *dev, obd_count len, void *data);
692 int (*o_detach)(struct obd_device *dev);
693 int (*o_setup) (struct obd_device *dev, obd_count len, void *data);
694 int (*o_precleanup)(struct obd_device *dev, int flags);
695 int (*o_cleanup)(struct obd_device *dev, int flags);
696 int (*o_process_config)(struct obd_device *dev, obd_count len,
698 int (*o_postrecov)(struct obd_device *dev);
699 int (*o_add_conn)(struct obd_import *imp, struct obd_uuid *uuid,
701 int (*o_del_conn)(struct obd_import *imp, struct obd_uuid *uuid);
702 int (*o_connect)(struct lustre_handle *conn, struct obd_device *src,
703 struct obd_uuid *cluuid, unsigned long flags);
704 int (*o_connect_post)(struct obd_export *exp, unsigned long flags);
705 int (*o_disconnect)(struct obd_export *exp, unsigned long flags);
707 int (*o_statfs)(struct obd_device *obd, struct obd_statfs *osfs,
708 unsigned long max_age);
709 int (*o_packmd)(struct obd_export *exp, struct lov_mds_md **disk_tgt,
710 struct lov_stripe_md *mem_src);
711 int (*o_unpackmd)(struct obd_export *exp,struct lov_stripe_md **mem_tgt,
712 struct lov_mds_md *disk_src, int disk_len);
713 int (*o_revalidate_md)(struct obd_export *exp, struct obdo *oa,
714 struct lov_stripe_md *ea,
715 struct obd_trans_info *oti);
716 int (*o_preallocate)(struct lustre_handle *, obd_count *req,
718 int (*o_create)(struct obd_export *exp, struct obdo *oa,
719 struct lov_stripe_md **ea, struct obd_trans_info *oti);
720 int (*o_destroy)(struct obd_export *exp, struct obdo *oa,
721 struct lov_stripe_md *ea, struct obd_trans_info *oti);
722 int (*o_setattr)(struct obd_export *exp, struct obdo *oa,
723 struct lov_stripe_md *ea, struct obd_trans_info *oti);
724 int (*o_getattr)(struct obd_export *exp, struct obdo *oa,
725 struct lov_stripe_md *ea);
726 int (*o_getattr_async)(struct obd_export *exp, struct obdo *oa,
727 struct lov_stripe_md *ea,
728 struct ptlrpc_request_set *set);
729 int (*o_brw)(int rw, struct obd_export *exp, struct obdo *oa,
730 struct lov_stripe_md *ea, obd_count oa_bufs,
731 struct brw_page *pgarr, struct obd_trans_info *oti);
732 int (*o_brw_async)(int rw, struct obd_export *exp, struct obdo *oa,
733 struct lov_stripe_md *ea, obd_count oa_bufs,
734 struct brw_page *pgarr, struct ptlrpc_request_set *,
735 struct obd_trans_info *oti);
736 int (*o_prep_async_page)(struct obd_export *exp,
737 struct lov_stripe_md *lsm,
738 struct lov_oinfo *loi,
739 struct page *page, obd_off offset,
740 struct obd_async_page_ops *ops, void *data,
742 int (*o_queue_async_io)(struct obd_export *exp,
743 struct lov_stripe_md *lsm,
744 struct lov_oinfo *loi, void *cookie,
745 int cmd, obd_off off, int count,
746 obd_flags brw_flags, obd_flags async_flags);
747 int (*o_queue_group_io)(struct obd_export *exp,
748 struct lov_stripe_md *lsm,
749 struct lov_oinfo *loi,
750 struct obd_io_group *oig,
751 void *cookie, int cmd, obd_off off, int count,
752 obd_flags brw_flags, obd_flags async_flags);
753 int (*o_trigger_group_io)(struct obd_export *exp,
754 struct lov_stripe_md *lsm,
755 struct lov_oinfo *loi,
756 struct obd_io_group *oig);
757 int (*o_set_async_flags)(struct obd_export *exp,
758 struct lov_stripe_md *lsm,
759 struct lov_oinfo *loi, void *cookie,
760 obd_flags async_flags);
761 int (*o_teardown_async_page)(struct obd_export *exp,
762 struct lov_stripe_md *lsm,
763 struct lov_oinfo *loi, void *cookie);
764 int (*o_punch)(struct obd_export *exp, struct obdo *oa,
765 struct lov_stripe_md *ea, obd_size start,
766 obd_size end, struct obd_trans_info *oti);
767 int (*o_sync)(struct obd_export *exp, struct obdo *oa,
768 struct lov_stripe_md *ea, obd_size start, obd_size end);
769 int (*o_migrate)(struct lustre_handle *conn, struct lov_stripe_md *dst,
770 struct lov_stripe_md *src, obd_size start,
771 obd_size end, struct obd_trans_info *oti);
772 int (*o_copy)(struct lustre_handle *dstconn, struct lov_stripe_md *dst,
773 struct lustre_handle *srconn, struct lov_stripe_md *src,
774 obd_size start, obd_size end, struct obd_trans_info *);
775 int (*o_iterate)(struct lustre_handle *conn,
776 int (*)(obd_id, obd_gr, void *),
777 obd_id *startid, obd_gr group, void *data);
778 int (*o_preprw)(int cmd, struct obd_export *exp, struct obdo *oa,
779 int objcount, struct obd_ioobj *obj,
780 int niocount, struct niobuf_remote *remote,
781 struct niobuf_local *local, struct obd_trans_info *oti);
782 int (*o_commitrw)(int cmd, struct obd_export *exp, struct obdo *oa,
783 int objcount, struct obd_ioobj *obj,
784 int niocount, struct niobuf_local *local,
785 struct obd_trans_info *oti, int rc);
786 int (*o_do_cow)(struct obd_export *exp, struct obd_ioobj *obj,
787 int objcount, struct niobuf_remote *rnb);
788 int (*o_write_extents)(struct obd_export *exp, struct obd_ioobj *obj,
789 int objcount, int niocount,
790 struct niobuf_local *local,int rc);
791 int (*o_enqueue)(struct obd_export *, struct lov_stripe_md *,
792 __u32 type, ldlm_policy_data_t *, __u32 mode,
793 int *flags, void *bl_cb, void *cp_cb, void *gl_cb,
794 void *data, __u32 lvb_len, void *lvb_swabber,
795 struct lustre_handle *lockh);
796 int (*o_match)(struct obd_export *, struct lov_stripe_md *, __u32 type,
797 ldlm_policy_data_t *, __u32 mode, int *flags, void *data,
798 struct lustre_handle *lockh);
799 int (*o_change_cbdata)(struct obd_export *, struct lov_stripe_md *,
800 ldlm_iterator_t it, void *data);
801 int (*o_cancel)(struct obd_export *, struct lov_stripe_md *md,
802 __u32 mode, struct lustre_handle *);
803 int (*o_cancel_unused)(struct obd_export *, struct lov_stripe_md *,
804 int flags, void *opaque);
805 int (*o_san_preprw)(int cmd, struct obd_export *exp,
806 struct obdo *oa, int objcount,
807 struct obd_ioobj *obj, int niocount,
808 struct niobuf_remote *remote);
809 int (*o_init_export)(struct obd_export *exp);
810 int (*o_destroy_export)(struct obd_export *exp);
812 /* llog related obd_methods */
813 int (*o_llog_init)(struct obd_device *, struct obd_llogs *,
814 struct obd_device *, int, struct llog_catid *);
815 int (*o_llog_finish)(struct obd_device *, struct obd_llogs *, int);
816 int (*o_llog_connect)(struct obd_export *, struct llogd_conn_body *);
819 /* metadata-only methods */
820 int (*o_pin)(struct obd_export *, obd_id ino, __u32 gen, int type,
821 struct obd_client_handle *, int flag);
822 int (*o_unpin)(struct obd_export *, struct obd_client_handle *, int);
824 int (*o_import_event)(struct obd_device *, struct obd_import *,
825 enum obd_import_event);
827 int (*o_notify)(struct obd_device *obd, struct obd_device *watched,
828 int active, void *data);
830 /* this method is needed for cmobd to make say to LMV "get ready" when
831 * master obd is LMV. This is needed, because LMV is initialized in
832 * "defered" manner to let all MDSs to be set up first. */
833 int (*o_getready)(struct obd_export *exp);
834 int (*o_init_ea_size)(struct obd_export *, int, int);
837 * NOTE: If adding ops, add another LPROCFS_OBD_OP_INIT() line
838 * to lprocfs_alloc_obd_stats() in obdclass/lprocfs_status.c.
839 * Also, add a wrapper function in include/linux/obd_class.h.
844 int (*m_getstatus)(struct obd_export *, struct lustre_id *);
845 int (*m_change_cbdata)(struct obd_export *, struct lustre_id *,
846 ldlm_iterator_t, void *);
847 int (*m_change_cbdata_name)(struct obd_export *, struct lustre_id *,
848 char *, int, struct lustre_id *,
849 ldlm_iterator_t, void *);
850 int (*m_close)(struct obd_export *, struct obdo *,
851 struct obd_client_handle *,
852 struct ptlrpc_request **);
853 int (*m_create)(struct obd_export *, struct mdc_op_data *,
854 const void *, int, int, __u32, __u32,
855 __u64, struct ptlrpc_request **);
856 int (*m_done_writing)(struct obd_export *, struct obdo *);
857 int (*m_enqueue)(struct obd_export *, int, struct lookup_intent *,
858 int, struct mdc_op_data *, struct lustre_handle *,
859 void *, int, ldlm_completion_callback,
860 ldlm_blocking_callback, void *);
861 int (*m_getattr)(struct obd_export *, struct lustre_id *,
862 __u64, const char *, int,
863 unsigned int, struct ptlrpc_request **);
864 int (*m_getattr_lock)(struct obd_export *, struct lustre_id *,
866 unsigned int, struct ptlrpc_request **);
867 int (*m_intent_lock)(struct obd_export *,
868 struct lustre_id *, const char *, int,
869 void *, int, struct lustre_id *,
870 struct lookup_intent *, int,
871 struct ptlrpc_request **,
872 ldlm_blocking_callback);
873 int (*m_link)(struct obd_export *, struct mdc_op_data *,
874 struct ptlrpc_request **);
875 int (*m_rename)(struct obd_export *, struct mdc_op_data *,
876 const char *, int, const char *, int,
877 struct ptlrpc_request **);
878 int (*m_setattr)(struct obd_export *, struct mdc_op_data *,
879 struct iattr *, void *, int , void *, int,
880 struct ptlrpc_request **);
881 int (*m_sync)(struct obd_export *, struct lustre_id *,
882 struct ptlrpc_request **);
883 int (*m_readpage)(struct obd_export *, struct lustre_id *,
884 __u64, struct page *, struct ptlrpc_request **);
885 int (*m_unlink)(struct obd_export *, struct mdc_op_data *,
886 struct ptlrpc_request **);
887 int (*m_valid_attrs)(struct obd_export *, struct lustre_id *);
889 struct obd_device *(*m_get_real_obd)(struct obd_export *, struct lustre_id *);
891 int (*m_req2lustre_md)(struct obd_export *exp,
892 struct ptlrpc_request *req, unsigned int offset,
893 struct obd_export *osc_exp, struct lustre_md *md);
894 int (*m_set_open_replay_data)(struct obd_export *exp,
895 struct obd_client_handle *och,
896 struct ptlrpc_request *open_req);
897 int (*m_clear_open_replay_data)(struct obd_export *exp,
898 struct obd_client_handle *och);
899 int (*m_store_inode_generation)(struct obd_export *exp,
900 struct ptlrpc_request *req, int reqoff,
902 int (*m_set_lock_data)(struct obd_export *exp, __u64 *l, void *data);
904 int (*m_delete_inode)(struct obd_export *, struct lustre_id *);
907 * NOTE: If adding ops, add another LPROCFS_MD_OP_INIT() line to
908 * lprocfs_alloc_md_stats() in obdclass/lprocfs_status.c. Also, add a
909 * wrapper function in include/linux/obd_class.h.
913 static inline void obd_transno_commit_cb(struct obd_device *obd,
914 __u64 transno, int error)
917 CERROR("%s: transno "LPD64" commit error: %d\n",
918 obd->obd_name, transno, error);
922 CDEBUG(D_HA, "%s: transno "LPD64" committed\n",
923 obd->obd_name, transno);
925 if (transno > obd->obd_last_committed) {
926 obd->obd_last_committed = transno;
927 ptlrpc_commit_replies (obd);