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_CTL_RECOVERY _IOWR(IOC_OSC_TYPE, 22, struct obd_device *)
17 #define IOC_OSC_MAX_NR 50
19 #define IOC_MDC_TYPE 'i'
20 #define IOC_MDC_MIN_NR 20
21 #define IOC_MDC_LOOKUP _IOWR(IOC_MDC_TYPE, 20, struct obd_device *)
22 /* Moved to lustre_user.h
23 #define IOC_MDC_GETSTRIPE _IOWR(IOC_MDC_TYPE, 21, struct lov_mds_md *) */
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;
209 struct lvfs_obd_ctxt *fo_lvfs_ctxt;
212 struct dentry *fo_dentry_O; /* the "O"bject directory dentry */
213 struct dentry **fo_groups; /* dentries for each group dir */
214 struct filter_subdirs *fo_subdirs; /* subdir array per group */
215 __u64 *fo_last_objids; /* per-group last created objid */
216 struct file **fo_last_objid_files;
217 struct semaphore fo_init_lock; /* group initialization lock */
218 int fo_committed_group;
220 spinlock_t fo_objidlock; /* protect fo_lastobjid increment */
221 spinlock_t fo_lastidlock; /* protect last_id increment */
222 spinlock_t fo_translock; /* protect fsd_last_rcvd increment */
223 struct file *fo_rcvd_filp;
224 struct filter_server_data *fo_fsd;
225 unsigned long *fo_last_rcvd_slots;
226 __u64 fo_mount_count;
228 unsigned long fo_destroys_in_progress;
229 struct semaphore fo_create_locks[32];
231 struct file_operations *fo_fop;
232 struct inode_operations *fo_iop;
233 struct address_space_operations *fo_aops;
235 struct list_head fo_export_list;
238 obd_size fo_tot_dirty; /* protected by obd_osfs_lock */
239 obd_size fo_tot_granted; /* all values in bytes */
240 obd_size fo_tot_pending;
242 obd_size fo_readcache_max_filesize;
244 struct obd_import *fo_mdc_imp;
245 struct obd_uuid fo_mdc_uuid;
246 struct lustre_handle fo_mdc_conn;
248 struct semaphore fo_alloc_lock;
250 struct obd_histogram fo_r_pages;
251 struct obd_histogram fo_w_pages;
252 struct obd_histogram fo_r_discont_pages;
253 struct obd_histogram fo_w_discont_pages;
254 struct obd_histogram fo_r_discont_blocks;
255 struct obd_histogram fo_w_discont_blocks;
257 struct list_head fo_llog_list;
258 spinlock_t fo_llog_list_lock;
260 /* which secure flavor from remote is denied */
261 spinlock_t fo_denylist_lock;
262 struct list_head fo_denylist;
266 struct mds_server_data;
268 #define OSC_MAX_RIF_DEFAULT 8
269 #define OSC_MAX_RIF_MAX 64
270 #define OSC_MAX_DIRTY_DEFAULT (4*OSC_MAX_RIF_DEFAULT*PTLRPC_MAX_BRW_SIZE>>20)
271 #define OSC_MAX_DIRTY_MB_MAX 512 /* totally arbitrary */
276 struct obd_import *cl_import;
277 struct semaphore cl_sem;
279 /* max_mds_easize is purely a performance thing so we don't have to
280 * call obd_size_wiremd() all the time. */
281 int cl_max_mds_easize;
282 int cl_max_mds_cookiesize;
285 /* security flavors */
287 unsigned long cl_sec_flags;
289 //struct llog_canceld_ctxt *cl_llcd; /* it's included by obd_llog_ctxt */
290 void *cl_llcd_offset;
292 struct obd_device *cl_mgmtcli_obd;
294 /* the grant values are protected by loi_list_lock below */
295 long cl_dirty; /* all _dirty_ in bytes */
296 long cl_dirty_max; /* allowed w/o rpc */
297 long cl_avail_grant; /* bytes of credit for ost */
298 long cl_lost_grant; /* lost credits (trunc) */
299 struct list_head cl_cache_waiters; /* waiting for cache/grant */
301 /* keep track of objects that have lois that contain pages which
302 * have been queued for async brw. this lock also protects the
303 * lists of osc_client_pages that hang off of the loi */
304 spinlock_t cl_loi_list_lock;
305 struct list_head cl_loi_ready_list;
306 struct list_head cl_loi_write_list;
307 struct list_head cl_loi_read_list;
310 /* just a sum of the loi/lop pending numbers to be exported by /proc */
311 int cl_pending_w_pages;
312 int cl_pending_r_pages;
313 int cl_max_pages_per_rpc;
314 int cl_max_rpcs_in_flight;
315 struct obd_histogram cl_read_rpc_hist;
316 struct obd_histogram cl_write_rpc_hist;
317 struct obd_histogram cl_read_page_hist;
318 struct obd_histogram cl_write_page_hist;
319 struct obd_service_time cl_read_stime;
320 struct obd_service_time cl_write_stime;
321 struct obd_service_time cl_enter_stime;
323 struct mdc_rpc_lock *cl_rpc_lock;
324 struct mdc_rpc_lock *cl_setattr_lock;
325 struct mdc_rpc_lock *cl_close_lock;
326 struct osc_creator cl_oscc;
330 /* Like a client, with some hangers-on. Keep mc_client_obd first so that we
331 * can reuse the various client setup/connect functions. */
333 struct client_obd mc_client_obd; /* nested */
334 struct ptlrpc_thread *mc_ping_thread;
335 struct obd_export *mc_ping_exp; /* XXX single-target */
336 struct list_head mc_registered;
340 #define mc_import mc_client_obd.cl_import
343 struct ptlrpc_service *mds_service;
344 struct ptlrpc_service *mds_setattr_service;
345 struct ptlrpc_service *mds_readpage_service;
346 struct super_block *mds_sb;
347 struct vfsmount *mds_vfsmnt;
348 struct dentry *mds_id_de;
349 struct lvfs_obd_ctxt *mds_lvfs_ctxt;
351 int mds_max_cookiesize;
352 struct file *mds_rcvd_filp;
353 struct file *mds_fid_filp;
354 struct file *mds_virtid_filp;
355 spinlock_t mds_transno_lock;
356 __u64 mds_last_transno;
357 __u64 mds_mount_count;
361 __u64 mds_virtid_fid;
362 spinlock_t mds_last_fid_lock;
364 struct semaphore mds_epoch_sem;
365 struct lustre_id mds_rootid;
366 struct mds_server_data *mds_server_data;
367 struct dentry *mds_pending_dir;
368 struct dentry *mds_logs_dir;
369 struct dentry *mds_objects_dir;
370 struct llog_handle *mds_cfg_llh;
372 struct obd_device *mds_dt_obd;
373 struct obd_uuid mds_dt_uuid;
374 struct obd_export *mds_dt_exp;
376 struct lov_desc mds_dt_desc;
378 spinlock_t mds_dt_lock;
379 obd_id *mds_dt_objids;
380 struct file *mds_dt_objid_filp;
381 int mds_dt_objids_valid;
383 unsigned long *mds_client_bitmap;
384 struct semaphore mds_orphan_recovery_sem;
387 int mds_config_version;
390 struct obd_device *mds_md_obd;
391 struct obd_export *mds_md_exp;
392 struct semaphore mds_md_sem;
393 struct obd_uuid mds_md_uuid;
394 int mds_md_connected;
396 struct ptlrpc_service *mds_create_service;
397 uid_t mds_squash_uid;
398 gid_t mds_squash_gid;
399 ptl_nid_t mds_nosquash_nid;
400 atomic_t mds_real_clients;
401 atomic_t mds_open_count;
402 struct dentry *mds_id_dir;
404 struct dentry *mds_unnamed_dir; /* for mdt_obd_create only */
406 /* security related */
409 /* which secure flavor from remote to this mds is denied */
410 spinlock_t mds_denylist_lock;
411 struct list_head mds_denylist;
412 struct semaphore mds_create_sem;
420 struct lustre_handle eo_nl_lock;
425 * this struct does double-duty acting as either a client or
426 * server instance .. maybe not wise.
430 struct ptlrpc_service *ptlbd_service;
433 struct ptlrpc_client bd_client;
434 struct obd_import *bd_import;
435 struct obd_uuid bd_server_uuid;
436 struct obd_export *bd_exp;
437 int refcount; /* XXX sigh */
441 spinlock_t recovd_lock;
442 struct list_head recovd_managed_items; /* items managed */
443 struct list_head recovd_troubled_items; /* items in recovery */
445 wait_queue_head_t recovd_recovery_waitq;
446 wait_queue_head_t recovd_ctl_waitq;
447 wait_queue_head_t recovd_waitq;
448 struct task_struct *recovd_thread;
454 struct ptlrpc_service *ost_service;
455 struct ptlrpc_service *ost_create_service;
456 struct obd_service_time ost_stimes[6];
459 struct echo_client_obd {
460 struct obd_export *ec_exp; /* the local connection to osc/lov */
462 struct list_head ec_objects;
468 struct obd_export *master_exp; /* local connection to master obd */
469 struct obd_export *cache_exp; /* local connection to cache obd */
470 struct obd_export *cache_real_exp;
471 struct obd_export *master_real_exp;
472 struct obd_device *master;
473 struct obd_device *cache;
478 struct semaphore sem;
482 struct obd_export *cache_exp; /* local connection to cache obd */
483 struct obd_export *master_exp;
484 struct obd_device *cache_obd;
485 struct obd_device *master_obd;
487 struct cmobd_write_service *write_srv;
488 struct lov_desc master_desc; /* master device lovdesc */
492 struct super_block *cfobd_sb;
493 struct vfsmount *cfobd_vfsmnt;
494 struct dentry *cfobd_logs_dir;
495 struct dentry *cfobd_objects_dir;
496 struct dentry *cfobd_pending_dir;
497 struct llog_handle *cfobd_cfg_llh;
498 struct lvfs_obd_ctxt *cfobd_lvfs_ctxt;
501 struct lov_tgt_desc {
502 struct obd_uuid uuid;
504 struct obd_export *ltd_exp;
505 int active; /* is this target up for requests */
510 struct lov_desc desc;
513 int lo_catalog_loaded:1, async:1;
514 struct semaphore lov_llog_sem;
515 unsigned long lov_connect_flags;
516 struct lov_tgt_desc *tgts;
519 struct lmv_tgt_desc {
520 struct obd_uuid uuid;
521 struct obd_export *ltd_exp;
522 int active; /* is this target up for requests */
528 struct lmv_desc desc;
529 struct lmv_tgt_desc *tgts;
530 struct obd_uuid cluuid;
531 struct obd_export *exp;
539 struct semaphore init_sem;
540 struct obd_connect_data conn_data;
542 struct gks_crypto_key {
547 struct ptlrpc_service *gks_service;
548 struct crypto_tfm *gks_mac_tfm;
549 struct crypto_tfm *gks_key_tfm;
550 struct gks_crypto_key gks_key;
553 struct niobuf_local {
558 struct dentry *dentry;
563 #define OBD_MODE_ASYNC (1 << 0)
564 #define OBD_MODE_CROW (1 << 1)
566 /* Don't conflict with on-wire flags OBD_BRW_WRITE, etc */
567 #define N_LOCAL_TEMP_PAGE 0x10000000
569 struct obd_trans_info {
573 /* only used on the server side for tracking acks. */
574 struct oti_req_ack_lock {
575 struct lustre_handle lock;
579 struct llog_cookie oti_onecookie;
580 struct llog_cookie *oti_logcookies;
585 static inline void oti_alloc_cookies(struct obd_trans_info *oti,int num_cookies)
590 if (num_cookies == 1)
591 oti->oti_logcookies = &oti->oti_onecookie;
593 OBD_ALLOC(oti->oti_logcookies,
594 num_cookies * sizeof(oti->oti_onecookie));
596 oti->oti_numcookies = num_cookies;
599 static inline void oti_free_cookies(struct obd_trans_info *oti)
601 if (!oti || !oti->oti_logcookies)
604 if (oti->oti_logcookies == &oti->oti_onecookie)
605 LASSERT(oti->oti_numcookies == 1);
607 OBD_FREE(oti->oti_logcookies,
608 oti->oti_numcookies * sizeof(oti->oti_onecookie));
609 oti->oti_logcookies = NULL;
610 oti->oti_numcookies = 0;
615 LLOG_CONFIG_ORIG_CTXT = 0,
616 LLOG_CONFIG_REPL_CTXT = 1,
617 LLOG_UNLINK_ORIG_CTXT = 2,
618 LLOG_UNLINK_REPL_CTXT = 3,
619 LLOG_SIZE_ORIG_CTXT = 4,
620 LLOG_SIZE_REPL_CTXT = 5,
621 LLOG_MD_ORIG_CTXT = 6,
622 LLOG_MD_REPL_CTXT = 7,
623 LLOG_RD1_ORIG_CTXT = 8,
624 LLOG_RD1_REPL_CTXT = 9,
625 LLOG_TEST_ORIG_CTXT = 10,
626 LLOG_TEST_REPL_CTXT = 11,
627 LLOG_REINT_ORIG_CTXT = 12,
628 LLOG_AUDIT_ORIG_CTXT = 13,
633 struct llog_ctxt *llog_ctxt[LLOG_MAX_CTXTS];
636 struct target_recovery_data {
637 svc_handler_t trd_recovery_handler;
638 pid_t trd_processing_task;
639 struct completion trd_starting;
640 struct completion trd_finishing;
643 /* corresponds to one of the obd's */
645 struct obd_type *obd_type;
647 /* common and UUID name of this device */
649 struct obd_uuid obd_uuid;
652 unsigned int obd_attached:1, obd_set_up:1, obd_recovering:1,
653 obd_abort_recovery:1, obd_replayable:1, obd_no_transno:1,
654 obd_no_recov:1, obd_stopping:1;
655 atomic_t obd_refcount;
656 wait_queue_head_t obd_refcount_waitq;
657 struct proc_dir_entry *obd_proc_entry;
658 struct list_head obd_exports;
660 struct ldlm_namespace *obd_namespace;
661 struct ptlrpc_client obd_ldlm_client; /* XXX OST/MDS only */
662 /* a spinlock is OK for what we do now, may need a semaphore later */
663 spinlock_t obd_dev_lock;
664 __u64 obd_last_committed;
665 struct fsfilt_operations *obd_fsops;
666 spinlock_t obd_osfs_lock;
667 struct obd_statfs obd_osfs;
668 unsigned long obd_osfs_age;
669 struct lvfs_run_ctxt obd_lvfs_ctxt;
670 struct obd_llogs obd_llogs;
671 struct llog_ctxt *obd_llog_ctxt[LLOG_MAX_CTXTS];
672 struct obd_device *obd_observer;
673 struct obd_export *obd_self_export;
675 struct target_recovery_data obd_recovery_data;
676 /* XXX encapsulate all this recovery data into target_recovery_data */
677 int obd_max_recoverable_clients;
678 int obd_connected_clients;
679 int obd_recoverable_clients;
680 spinlock_t obd_processing_task_lock;
681 __u64 obd_next_recovery_transno;
682 int obd_replayed_requests;
683 int obd_replayed_locks;
684 int obd_requests_queued_for_recovery;
685 wait_queue_head_t obd_next_transno_waitq;
686 struct list_head obd_uncommitted_replies;
687 spinlock_t obd_uncommitted_replies_lock;
688 struct timer_list obd_recovery_timer;
689 time_t obd_recovery_start;
690 time_t obd_recovery_end;
692 atomic_t obd_req_replay_clients;
693 atomic_t obd_lock_replay_clients;
695 struct list_head obd_req_replay_queue;
696 struct list_head obd_lock_replay_queue;
697 struct list_head obd_final_req_queue;
698 int obd_recovery_stage;
701 struct filter_obd filter;
703 struct client_obd cli;
705 struct echo_client_obd echocli;
706 struct echo_obd echo;
707 struct recovd_obd recovd;
709 struct cache_obd cobd;
710 struct ptlbd_obd ptlbd;
711 struct mgmtcli_obd mgmtcli;
714 struct conf_obd conf;
718 /* fields used by LProcFS */
719 unsigned int obd_cntr_base;
720 struct lprocfs_stats *obd_stats;
721 unsigned int md_cntr_base;
722 struct lprocfs_stats *md_stats;
724 struct proc_dir_entry *obd_svc_procroot;
725 struct lprocfs_stats *obd_svc_stats;
728 #define OBD_OPT_FORCE (1 << 0)
729 #define OBD_OPT_FAILOVER (1 << 1)
730 #define OBD_OPT_REAL_CLIENT (1 << 2)
731 #define OBD_OPT_MDS_CONNECTION (1 << 3)
733 #define OBD_LLOG_FL_SENDNOW (1 << 0)
734 #define OBD_LLOG_FL_CREATE (1 << 1)
739 struct module *o_owner;
740 int (*o_iocontrol)(unsigned int cmd, struct obd_export *exp, int len,
741 void *karg, void *uarg);
742 int (*o_get_info)(struct obd_export *, __u32 keylen, void *key,
743 __u32 *vallen, void *val);
744 int (*o_set_info)(struct obd_export *, __u32 keylen, void *key,
745 __u32 vallen, void *val);
746 int (*o_attach)(struct obd_device *dev, obd_count len, void *data);
747 int (*o_detach)(struct obd_device *dev);
748 int (*o_setup) (struct obd_device *dev, obd_count len, void *data);
749 int (*o_precleanup)(struct obd_device *dev, int flags);
750 int (*o_cleanup)(struct obd_device *dev, int flags);
751 int (*o_process_config)(struct obd_device *dev, obd_count len,
753 int (*o_postrecov)(struct obd_device *dev);
754 int (*o_add_conn)(struct obd_import *imp, struct obd_uuid *uuid,
756 int (*o_del_conn)(struct obd_import *imp, struct obd_uuid *uuid);
757 int (*o_connect)(struct lustre_handle *conn, struct obd_device *src,
758 struct obd_uuid *cluuid, struct obd_connect_data *data,
759 unsigned long flags);
760 int (*o_connect_post)(struct obd_export *exp, unsigned, unsigned long);
761 int (*o_disconnect)(struct obd_export *exp, unsigned long flags);
763 int (*o_statfs)(struct obd_device *obd, struct obd_statfs *osfs,
764 unsigned long max_age);
765 int (*o_packmd)(struct obd_export *exp, struct lov_mds_md **disk_tgt,
766 struct lov_stripe_md *mem_src);
767 int (*o_unpackmd)(struct obd_export *exp,struct lov_stripe_md **mem_tgt,
768 struct lov_mds_md *disk_src, int disk_len);
769 int (*o_revalidate_md)(struct obd_export *exp, struct obdo *oa,
770 struct lov_stripe_md *ea,
771 struct obd_trans_info *oti);
772 int (*o_preallocate)(struct lustre_handle *, obd_count *req,
774 int (*o_create)(struct obd_export *exp, struct obdo *oa,
775 void *acl, int acl_size,
776 struct lov_stripe_md **ea, struct obd_trans_info *oti);
777 int (*o_destroy)(struct obd_export *exp, struct obdo *oa,
778 struct lov_stripe_md *ea, struct obd_trans_info *oti);
779 int (*o_setattr)(struct obd_export *exp, struct obdo *oa,
780 struct lov_stripe_md *ea, struct obd_trans_info *oti);
781 int (*o_getattr)(struct obd_export *exp, struct obdo *oa,
782 struct lov_stripe_md *ea);
783 int (*o_getattr_async)(struct obd_export *exp, struct obdo *oa,
784 struct lov_stripe_md *ea,
785 struct ptlrpc_request_set *set);
786 int (*o_brw)(int rw, struct obd_export *exp, struct obdo *oa,
787 struct lov_stripe_md *ea, obd_count oa_bufs,
788 struct brw_page *pgarr, struct obd_trans_info *oti);
789 int (*o_brw_async)(int rw, struct obd_export *exp, struct obdo *oa,
790 struct lov_stripe_md *ea, obd_count oa_bufs,
791 struct brw_page *pgarr, struct ptlrpc_request_set *,
792 struct obd_trans_info *oti);
793 int (*o_prep_async_page)(struct obd_export *exp,
794 struct lov_stripe_md *lsm,
795 struct lov_oinfo *loi,
796 struct page *page, obd_off offset,
797 struct obd_async_page_ops *ops, void *data,
799 int (*o_queue_async_io)(struct obd_export *exp,
800 struct lov_stripe_md *lsm,
801 struct lov_oinfo *loi, void *cookie,
802 int cmd, obd_off off, int count,
803 obd_flags brw_flags, obd_flags async_flags);
804 int (*o_queue_group_io)(struct obd_export *exp,
805 struct lov_stripe_md *lsm,
806 struct lov_oinfo *loi,
807 struct obd_io_group *oig,
808 void *cookie, int cmd, obd_off off, int count,
809 obd_flags brw_flags, obd_flags async_flags);
810 int (*o_trigger_group_io)(struct obd_export *exp,
811 struct lov_stripe_md *lsm,
812 struct lov_oinfo *loi,
813 struct obd_io_group *oig);
814 int (*o_set_async_flags)(struct obd_export *exp,
815 struct lov_stripe_md *lsm,
816 struct lov_oinfo *loi, void *cookie,
817 obd_flags async_flags);
818 int (*o_teardown_async_page)(struct obd_export *exp,
819 struct lov_stripe_md *lsm,
820 struct lov_oinfo *loi, void *cookie);
821 int (*o_adjust_kms)(struct obd_export *exp, struct lov_stripe_md *lsm,
822 obd_off size, int shrink);
823 int (*o_punch)(struct obd_export *exp, struct obdo *oa,
824 struct lov_stripe_md *ea, obd_size start,
825 obd_size end, struct obd_trans_info *oti);
826 int (*o_sync)(struct obd_export *exp, struct obdo *oa,
827 struct lov_stripe_md *ea, obd_size start, obd_size end);
828 int (*o_migrate)(struct lustre_handle *conn, struct lov_stripe_md *dst,
829 struct lov_stripe_md *src, obd_size start,
830 obd_size end, struct obd_trans_info *oti);
831 int (*o_copy)(struct lustre_handle *dstconn, struct lov_stripe_md *dst,
832 struct lustre_handle *srconn, struct lov_stripe_md *src,
833 obd_size start, obd_size end, struct obd_trans_info *);
834 int (*o_iterate)(struct lustre_handle *conn,
835 int (*)(obd_id, obd_gr, void *),
836 obd_id *startid, obd_gr group, void *data);
837 int (*o_preprw)(int cmd, struct obd_export *exp, struct obdo *oa,
838 int objcount, struct obd_ioobj *obj,
839 int niocount, struct niobuf_remote *remote,
840 struct niobuf_local *local, struct obd_trans_info *oti);
841 int (*o_commitrw)(int cmd, struct obd_export *exp, struct obdo *oa,
842 int objcount, struct obd_ioobj *obj,
843 int niocount, struct niobuf_local *local,
844 struct obd_trans_info *oti, int rc);
845 int (*o_do_cow)(struct obd_export *exp, struct obd_ioobj *obj,
846 int objcount, struct niobuf_remote *rnb);
847 int (*o_write_extents)(struct obd_export *exp, struct obd_ioobj *obj,
848 int objcount, int niocount,
849 struct niobuf_local *local,int rc);
850 int (*o_enqueue)(struct obd_export *, struct lov_stripe_md *,
851 __u32 type, ldlm_policy_data_t *, __u32 mode,
852 int *flags, void *bl_cb, void *cp_cb, void *gl_cb,
853 void *data, __u32 lvb_len, void *lvb_swabber,
854 struct lustre_handle *lockh);
855 int (*o_match)(struct obd_export *, struct lov_stripe_md *, __u32 type,
856 ldlm_policy_data_t *, __u32 mode, int *flags, void *data,
857 struct lustre_handle *lockh);
858 int (*o_change_cbdata)(struct obd_export *, struct lov_stripe_md *,
859 ldlm_iterator_t it, void *data);
860 int (*o_cancel)(struct obd_export *, struct lov_stripe_md *md,
861 __u32 mode, struct lustre_handle *);
862 int (*o_cancel_unused)(struct obd_export *, struct lov_stripe_md *,
863 int flags, void *opaque);
864 int (*o_san_preprw)(int cmd, struct obd_export *exp,
865 struct obdo *oa, int objcount,
866 struct obd_ioobj *obj, int niocount,
867 struct niobuf_remote *remote);
868 int (*o_init_export)(struct obd_export *exp);
869 int (*o_destroy_export)(struct obd_export *exp);
871 /* llog related obd_methods */
872 int (*o_llog_init)(struct obd_device *, struct obd_llogs *,
873 struct obd_device *, int, struct llog_catid *);
874 int (*o_llog_finish)(struct obd_device *, struct obd_llogs *, int);
875 int (*o_llog_connect)(struct obd_export *, struct llogd_conn_body *);
878 /* metadata-only methods */
879 int (*o_pin)(struct obd_export *, obd_id ino, __u32 gen, int type,
880 struct obd_client_handle *, int flag);
881 int (*o_unpin)(struct obd_export *, struct obd_client_handle *, int);
883 int (*o_import_event)(struct obd_device *, struct obd_import *,
884 enum obd_import_event);
886 int (*o_notify)(struct obd_device *obd, struct obd_device *watched,
887 int active, void *data);
889 int (*o_init_ea_size)(struct obd_export *, int, int);
892 * NOTE: If adding ops, add another LPROCFS_OBD_OP_INIT() line
893 * to lprocfs_alloc_obd_stats() in obdclass/lprocfs_status.c.
894 * Also, add a wrapper function in include/linux/obd_class.h.
899 int (*m_getstatus)(struct obd_export *, struct lustre_id *);
900 int (*m_change_cbdata)(struct obd_export *, struct lustre_id *,
901 ldlm_iterator_t, void *);
902 int (*m_change_cbdata_name)(struct obd_export *, struct lustre_id *,
903 char *, int, struct lustre_id *,
904 ldlm_iterator_t, void *);
905 int (*m_close)(struct obd_export *, struct obdo *,
906 struct obd_client_handle *,
907 struct ptlrpc_request **);
908 int (*m_create)(struct obd_export *, struct mdc_op_data *,
909 const void *, int, int, __u32, __u32,
910 __u64, struct ptlrpc_request **);
911 int (*m_done_writing)(struct obd_export *, struct obdo *);
912 int (*m_enqueue)(struct obd_export *, int, struct lookup_intent *,
913 int, struct mdc_op_data *, struct lustre_handle *,
914 void *, int, ldlm_completion_callback,
915 ldlm_blocking_callback, void *);
916 int (*m_getattr)(struct obd_export *, struct lustre_id *,
917 __u64, const char *, const void *, unsigned int,
918 unsigned int, struct ptlrpc_request **);
919 int (*m_access_check)(struct obd_export *, struct lustre_id *,
920 struct ptlrpc_request **);
921 int (*m_getattr_lock)(struct obd_export *, struct lustre_id *,
923 unsigned int, struct ptlrpc_request **);
924 int (*m_intent_lock)(struct obd_export *,
925 struct lustre_id *, const char *, int,
926 void *, int, struct lustre_id *,
927 struct lookup_intent *, int,
928 struct ptlrpc_request **,
929 ldlm_blocking_callback);
930 int (*m_link)(struct obd_export *, struct mdc_op_data *,
931 struct ptlrpc_request **);
932 int (*m_rename)(struct obd_export *, struct mdc_op_data *,
933 const char *, int, const char *, int,
934 struct ptlrpc_request **);
935 int (*m_setattr)(struct obd_export *, struct mdc_op_data *,
936 struct iattr *, void *, int , void *, int,
937 void *, int, struct ptlrpc_request **);
938 int (*m_sync)(struct obd_export *, struct lustre_id *,
939 struct ptlrpc_request **);
940 int (*m_readpage)(struct obd_export *, struct lustre_id *,
941 __u64, struct page *, struct ptlrpc_request **);
942 int (*m_unlink)(struct obd_export *, struct mdc_op_data *,
943 struct ptlrpc_request **);
944 int (*m_valid_attrs)(struct obd_export *, struct lustre_id *);
946 struct obd_device *(*m_get_real_obd)(struct obd_export *, struct lustre_id *);
948 int (*m_req2lustre_md)(struct obd_export *exp,
949 struct ptlrpc_request *req, unsigned int offset,
950 struct obd_export *osc_exp, struct lustre_md *md);
951 int (*m_set_open_replay_data)(struct obd_export *exp,
952 struct obd_client_handle *och,
953 struct ptlrpc_request *open_req);
954 int (*m_clear_open_replay_data)(struct obd_export *exp,
955 struct obd_client_handle *och);
956 int (*m_store_inode_generation)(struct obd_export *exp,
957 struct ptlrpc_request *req, int reqoff,
959 int (*m_set_lock_data)(struct obd_export *exp, __u64 *l, void *data);
961 int (*m_delete_inode)(struct obd_export *, struct lustre_id *);
964 * NOTE: If adding ops, add another LPROCFS_MD_OP_INIT() line to
965 * lprocfs_alloc_md_stats() in obdclass/lprocfs_status.c. Also, add a
966 * wrapper function in include/linux/obd_class.h.
970 static inline void obd_transno_commit_cb(struct obd_device *obd,
971 __u64 transno, int error)
974 CERROR("%s: transno "LPD64" commit error: %d\n",
975 obd->obd_name, transno, error);
979 CDEBUG(D_HA, "%s: transno "LPD64" committed\n",
980 obd->obd_name, transno);
982 if (transno > obd->obd_last_committed) {
983 obd->obd_last_committed = transno;
984 ptlrpc_commit_replies (obd);