1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
2 * vim:expandtab:shiftwidth=8:tabstop=8:
6 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 only,
10 * as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License version 2 for more details (a copy is included
16 * in the LICENSE file that accompanied this code).
18 * You should have received a copy of the GNU General Public License
19 * version 2 along with this program; If not, see
20 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
22 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
23 * CA 95054 USA or visit www.sun.com if you need additional information or
29 * Copyright 2008 Sun Microsystems, Inc. All rights reserved
30 * Use is subject to license terms.
33 * This file is part of Lustre, http://www.lustre.org/
34 * Lustre is a trademark of Sun Microsystems, Inc.
40 #if defined(__linux__)
41 #include <linux/obd.h>
42 #elif defined(__APPLE__)
43 #include <darwin/obd.h>
44 #elif defined(__WINNT__)
45 #include <winnt/obd.h>
47 #error Unsupported operating system.
50 #define IOC_OSC_TYPE 'h'
51 #define IOC_OSC_MIN_NR 20
52 #define IOC_OSC_SET_ACTIVE _IOWR(IOC_OSC_TYPE, 21, struct obd_device *)
53 #define IOC_OSC_MAX_NR 50
55 #define IOC_MDC_TYPE 'i'
56 #define IOC_MDC_MIN_NR 20
57 /* Moved to lustre_user.h
58 #define IOC_MDC_LOOKUP _IOWR(IOC_MDC_TYPE, 20, struct obd_ioctl_data *)
59 #define IOC_MDC_GETSTRIPE _IOWR(IOC_MDC_TYPE, 21, struct lov_mds_md *) */
60 #define IOC_MDC_MAX_NR 50
62 #include <lustre/lustre_idl.h>
63 #include <lu_object.h>
65 #include <lustre_lib.h>
66 #include <lustre_export.h>
67 #include <lustre_quota.h>
68 #include <lustre_fld.h>
69 #include <lustre_capa.h>
70 #include <class_hash.h>
72 #include <libcfs/bitmap.h>
75 #define MAX_OBD_DEVICES 8192
77 /* this is really local to the OSC */
78 struct loi_oap_pages {
79 struct list_head lop_pending;
80 struct list_head lop_urgent;
81 struct list_head lop_pending_group;
91 struct lov_oinfo { /* per-stripe data structure */
92 __u64 loi_id; /* object ID on the target OST */
93 __u64 loi_gr; /* object group on the target OST */
94 int loi_ost_idx; /* OST stripe index in lov_tgt_desc->tgts */
95 int loi_ost_gen; /* generation of this loi_ost_idx */
97 /* used by the osc to keep track of what objects to build into rpcs */
98 struct loi_oap_pages loi_read_lop;
99 struct loi_oap_pages loi_write_lop;
100 /* _cli_ is poorly named, it should be _ready_ */
101 struct list_head loi_cli_item;
102 struct list_head loi_write_item;
103 struct list_head loi_read_item;
105 unsigned long loi_kms_valid:1;
106 __u64 loi_kms; /* known minimum size */
107 struct ost_lvb loi_lvb;
108 struct osc_async_rc loi_ar;
111 static inline void loi_kms_set(struct lov_oinfo *oinfo, __u64 kms)
113 oinfo->loi_kms = kms;
114 oinfo->loi_kms_valid = 1;
117 static inline void loi_init(struct lov_oinfo *loi)
119 CFS_INIT_LIST_HEAD(&loi->loi_read_lop.lop_pending);
120 CFS_INIT_LIST_HEAD(&loi->loi_read_lop.lop_urgent);
121 CFS_INIT_LIST_HEAD(&loi->loi_read_lop.lop_pending_group);
122 CFS_INIT_LIST_HEAD(&loi->loi_write_lop.lop_pending);
123 CFS_INIT_LIST_HEAD(&loi->loi_write_lop.lop_urgent);
124 CFS_INIT_LIST_HEAD(&loi->loi_write_lop.lop_pending_group);
125 CFS_INIT_LIST_HEAD(&loi->loi_cli_item);
126 CFS_INIT_LIST_HEAD(&loi->loi_write_item);
127 CFS_INIT_LIST_HEAD(&loi->loi_read_item);
130 /*extent array item for describing the joined file extent info*/
132 __u64 le_start; /* extent start */
133 __u64 le_len; /* extent length */
134 int le_loi_idx; /* extent #1 loi's index in lsm loi array */
135 int le_stripe_count; /* extent stripe count*/
138 /*Lov array info for describing joined file array EA info*/
139 struct lov_array_info {
140 struct llog_logid lai_array_id; /* MDS med llog object id */
141 unsigned lai_ext_count; /* number of extent count */
142 struct lov_extent *lai_ext_array; /* extent desc array */
145 struct lov_stripe_md {
147 pid_t lsm_lock_owner; /* debugging */
150 /* Public members. */
151 __u64 lw_object_id; /* lov object id */
152 __u64 lw_object_gr; /* lov object group */
153 __u64 lw_maxbytes; /* maximum possible file size */
155 /* LOV-private members start here -- only for use in lov/. */
157 __u32 lw_stripe_size; /* size of the stripe */
158 __u32 lw_pattern; /* striping pattern (RAID0, RAID1) */
159 unsigned lw_stripe_count; /* number of objects being striped over */
160 char lw_pool_name[LOV_MAXPOOLNAME]; /* pool name */
163 struct lov_array_info *lsm_array; /*Only for joined file array info*/
164 struct lov_oinfo *lsm_oinfo[0];
167 #define lsm_object_id lsm_wire.lw_object_id
168 #define lsm_object_gr lsm_wire.lw_object_gr
169 #define lsm_maxbytes lsm_wire.lw_maxbytes
170 #define lsm_magic lsm_wire.lw_magic
171 #define lsm_stripe_size lsm_wire.lw_stripe_size
172 #define lsm_pattern lsm_wire.lw_pattern
173 #define lsm_stripe_count lsm_wire.lw_stripe_count
174 #define lsm_pool_name lsm_wire.lw_pool_name
178 typedef int (*obd_enqueue_update_f)(void *cookie, int rc);
180 /* obd info for a particular level (lov, osc). */
182 /* Lock policy. It keeps an extent which is specific for a particular
183 * OSC. (e.g. lov_prep_enqueue_set initialises extent of the policy,
184 * and osc_enqueue passes it into ldlm_lock_match & ldlm_cli_enqueue. */
185 ldlm_policy_data_t oi_policy;
186 /* Flags used for set request specific flags:
187 - while lock handling, the flags obtained on the enqueue
188 request are set here.
189 - while stats, the flags used for control delay/resend.
192 /* Lock handle specific for every OSC lock. */
193 struct lustre_handle *oi_lockh;
194 /* lsm data specific for every OSC. */
195 struct lov_stripe_md *oi_md;
196 /* obdo data specific for every OSC, if needed at all. */
198 /* statfs data specific for every OSC, if needed at all. */
199 struct obd_statfs *oi_osfs;
200 /* An update callback which is called to update some data on upper
201 * level. E.g. it is used for update lsm->lsm_oinfo at every recieved
202 * request in osc level for enqueue requests. It is also possible to
203 * update some caller data from LOV layer if needed. */
204 obd_enqueue_update_f oi_cb_up;
205 /* oss capability, its type is obd_capa in client to avoid copy.
206 * in contrary its type is lustre_capa in OSS. */
210 /* compare all relevant fields. */
211 static inline int lov_stripe_md_cmp(struct lov_stripe_md *m1,
212 struct lov_stripe_md *m2)
215 * ->lsm_wire contains padding, but it should be zeroed out during
218 return memcmp(&m1->lsm_wire, &m2->lsm_wire, sizeof m1->lsm_wire);
221 void lov_stripe_lock(struct lov_stripe_md *md);
222 void lov_stripe_unlock(struct lov_stripe_md *md);
225 struct list_head typ_chain;
226 struct obd_ops *typ_dt_ops;
227 struct md_ops *typ_md_ops;
228 cfs_proc_dir_entry_t *typ_procroot;
231 struct lu_device_type *typ_lu;
232 spinlock_t obd_type_lock;
242 /* Individual type definitions */
244 struct ost_server_data;
246 /* hold common fields for "target" device */
247 struct obd_device_target {
248 struct super_block *obt_sb;
249 atomic_t obt_quotachecking;
250 struct lustre_quota_ctxt obt_qctxt;
251 lustre_quota_version_t obt_qfmt;
252 struct rw_semaphore obt_rwsem;
257 LLOG_CONFIG_ORIG_CTXT = 0,
258 LLOG_CONFIG_REPL_CTXT,
259 LLOG_MDS_OST_ORIG_CTXT,
260 LLOG_MDS_OST_REPL_CTXT,
267 LLOG_LOVEA_ORIG_CTXT,
268 LLOG_LOVEA_REPL_CTXT,
269 LLOG_CHANGELOG_ORIG_CTXT, /**< changelog generation on mdd */
270 LLOG_CHANGELOG_REPL_CTXT, /**< changelog access on clients */
271 LLOG_CHANGELOG_USER_ORIG_CTXT, /**< for multiple changelog consumers */
275 #define FILTER_SUBDIR_COUNT 32 /* set to zero for no subdirs */
277 struct filter_subdirs {
278 cfs_dentry_t *dentry[FILTER_SUBDIR_COUNT];
288 /* NB this field MUST be first */
289 struct obd_device_target fo_obt;
290 const char *fo_fstype;
291 struct vfsmount *fo_vfsmnt;
294 cfs_dentry_t *fo_dentry_O;
295 cfs_dentry_t **fo_dentry_O_groups;
296 struct filter_subdirs *fo_dentry_O_sub;
297 struct semaphore fo_init_lock; /* group initialization lock */
298 int fo_committed_group;
301 spinlock_t fo_objidlock; /* protect fo_lastobjid */
302 spinlock_t fo_translock; /* protect fsd_last_transno */
303 struct file *fo_rcvd_filp;
304 struct file *fo_health_check_filp;
305 struct lr_server_data *fo_fsd;
306 unsigned long *fo_last_rcvd_slots;
307 __u64 fo_mount_count;
309 unsigned long fo_destroys_in_progress;
310 struct semaphore fo_create_locks[FILTER_SUBDIR_COUNT];
312 struct list_head fo_export_list;
315 obd_size fo_tot_dirty; /* protected by obd_osfs_lock */
316 obd_size fo_tot_granted; /* all values in bytes */
317 obd_size fo_tot_pending;
319 obd_size fo_readcache_max_filesize;
321 int fo_writethrough_cache;
323 struct obd_import *fo_mdc_imp;
324 struct obd_uuid fo_mdc_uuid;
325 struct lustre_handle fo_mdc_conn;
326 struct file **fo_last_objid_files;
327 __u64 *fo_last_objids; /* last created objid for groups,
328 * protected by fo_objidlock */
330 struct semaphore fo_alloc_lock;
332 atomic_t fo_r_in_flight;
333 atomic_t fo_w_in_flight;
336 * per-filter pool of kiobuf's allocated by filter_common_setup() and
337 * torn down by filter_cleanup(). Contains OST_NUM_THREADS elements of
338 * which ->fo_iobuf_count were allocated.
340 * This pool contains kiobuf used by
341 * filter_{prep,commit}rw_{read,write}() and is shared by all OST
344 * Locking: none, each OST thread uses only one element, determined by
345 * its "ordinal number", ->t_id.
347 struct filter_iobuf **fo_iobuf_pool;
350 struct list_head fo_llog_list;
351 spinlock_t fo_llog_list_lock;
353 struct brw_stats fo_filter_stats;
354 struct lustre_quota_ctxt fo_quota_ctxt;
355 spinlock_t fo_quotacheck_lock;
356 atomic_t fo_quotachecking;
358 int fo_fmd_max_num; /* per exp filter_mod_data */
359 int fo_fmd_max_age; /* jiffies to fmd expiry */
362 rwlock_t fo_sptlrpc_lock;
363 struct sptlrpc_rule_set fo_sptlrpc_rset;
365 /* capability related */
366 unsigned int fo_fl_oss_capa;
367 struct list_head fo_capa_keys;
368 struct hlist_head *fo_capa_hash;
369 struct llog_commit_master *fo_lcm;
373 #define OSC_MAX_RIF_DEFAULT 8
374 #define OSC_MAX_RIF_MAX 256
375 #define OSC_MAX_DIRTY_DEFAULT (OSC_MAX_RIF_DEFAULT * 4)
376 #define OSC_MAX_DIRTY_MB_MAX 2048 /* arbitrary, but < MAX_LONG bytes */
377 #define OSC_DEFAULT_RESENDS 10
379 #define MDC_MAX_RIF_DEFAULT 8
380 #define MDC_MAX_RIF_MAX 512
385 struct rw_semaphore cl_sem;
386 struct obd_uuid cl_target_uuid;
387 struct obd_import *cl_import; /* ptlrpc connection state */
389 /* max_mds_easize is purely a performance thing so we don't have to
390 * call obd_size_diskmd() all the time. */
391 int cl_default_mds_easize;
392 int cl_max_mds_easize;
393 int cl_max_mds_cookiesize;
395 enum lustre_sec_part cl_sp_me;
396 enum lustre_sec_part cl_sp_to;
397 struct sptlrpc_flavor cl_flvr_mgc; /* fixed flavor of mgc->mgs */
399 //struct llog_canceld_ctxt *cl_llcd; /* it's included by obd_llog_ctxt */
400 void *cl_llcd_offset;
402 /* the grant values are protected by loi_list_lock below */
403 long cl_dirty; /* all _dirty_ in bytes */
404 long cl_dirty_max; /* allowed w/o rpc */
405 long cl_dirty_transit; /* dirty synchronous */
406 long cl_avail_grant; /* bytes of credit for ost */
407 long cl_lost_grant; /* lost credits (trunc) */
408 struct list_head cl_cache_waiters; /* waiting for cache/grant */
410 /* keep track of objects that have lois that contain pages which
411 * have been queued for async brw. this lock also protects the
412 * lists of osc_client_pages that hang off of the loi */
414 * ->cl_loi_list_lock protects consistency of
415 * ->cl_loi_{ready,read,write}_list. ->ap_make_ready() and
416 * ->ap_completion() call-backs are executed under this lock. As we
417 * cannot guarantee that these call-backs never block on all platforms
418 * (as a matter of fact they do block on Mac OS X), type of
419 * ->cl_loi_list_lock is platform dependent: it's a spin-lock on Linux
420 * and blocking mutex on Mac OS X. (Alternative is to make this lock
421 * blocking everywhere, but we don't want to slow down fast-path of
422 * our main platform.)
424 * Exact type of ->cl_loi_list_lock is defined in arch/obd.h together
425 * with client_obd_list_{un,}lock() and
426 * client_obd_list_lock_{init,done}() functions.
428 client_obd_lock_t cl_loi_list_lock;
429 struct list_head cl_loi_ready_list;
430 struct list_head cl_loi_write_list;
431 struct list_head cl_loi_read_list;
434 /* just a sum of the loi/lop pending numbers to be exported by /proc */
435 int cl_pending_w_pages;
436 int cl_pending_r_pages;
437 int cl_max_pages_per_rpc;
438 int cl_max_rpcs_in_flight;
439 struct obd_histogram cl_read_rpc_hist;
440 struct obd_histogram cl_write_rpc_hist;
441 struct obd_histogram cl_read_page_hist;
442 struct obd_histogram cl_write_page_hist;
443 struct obd_histogram cl_read_offset_hist;
444 struct obd_histogram cl_write_offset_hist;
446 /* number of in flight destroy rpcs is limited to max_rpcs_in_flight */
447 atomic_t cl_destroy_in_flight;
448 cfs_waitq_t cl_destroy_waitq;
450 struct mdc_rpc_lock *cl_rpc_lock;
451 struct mdc_rpc_lock *cl_setattr_lock;
452 struct mdc_rpc_lock *cl_close_lock;
453 struct osc_creator cl_oscc;
456 struct semaphore cl_mgc_sem;
457 struct vfsmount *cl_mgc_vfsmnt;
458 struct dentry *cl_mgc_configs_dir;
459 atomic_t cl_mgc_refcount;
460 struct obd_export *cl_mgc_mgsexp;
462 /* checksumming for data sent over the network */
463 unsigned int cl_checksum:1; /* 0 = disabled, 1 = enabled */
464 /* supported checksum types that are worked out at connect time */
465 __u32 cl_supp_cksum_types;
466 /* checksum algorithm to be used */
467 cksum_type_t cl_cksum_type;
469 /* also protected by the poorly named _loi_list_lock lock above */
470 struct osc_async_rc cl_ar;
472 /* used by quotacheck */
473 int cl_qchk_stat; /* quotacheck stat of the peer */
475 /* sequence manager */
476 struct lu_client_seq *cl_seq;
478 atomic_t cl_resends; /* resend count */
480 #define obd2cli_tgt(obd) ((char *)(obd)->u.cli.cl_target_uuid.uuid)
482 #define CL_NOT_QUOTACHECKED 1 /* client->cl_qchk_stat init value */
485 struct ptlrpc_service *mgs_service;
486 struct vfsmount *mgs_vfsmnt;
487 struct super_block *mgs_sb;
488 struct dentry *mgs_configs_dir;
489 struct dentry *mgs_fid_de;
490 struct list_head mgs_fs_db_list;
491 struct semaphore mgs_sem;
492 cfs_proc_dir_entry_t *mgs_proc_live;
496 /* NB this field MUST be first */
497 struct obd_device_target mds_obt;
498 struct ptlrpc_service *mds_service;
499 struct ptlrpc_service *mds_setattr_service;
500 struct ptlrpc_service *mds_readpage_service;
501 struct vfsmount *mds_vfsmnt;
502 cfs_dentry_t *mds_fid_de;
504 int mds_max_cookiesize;
505 struct file *mds_rcvd_filp;
506 spinlock_t mds_transno_lock;
507 __u64 mds_last_transno;
508 __u64 mds_mount_count;
510 unsigned long mds_atime_diff;
511 struct semaphore mds_epoch_sem;
512 struct ll_fid mds_rootfid;
513 struct lr_server_data *mds_server_data;
514 cfs_dentry_t *mds_pending_dir;
515 cfs_dentry_t *mds_logs_dir;
516 cfs_dentry_t *mds_objects_dir;
517 struct llog_handle *mds_cfg_llh;
518 struct obd_device *mds_osc_obd; /* XXX lov_obd */
519 struct obd_uuid mds_lov_uuid;
521 struct obd_export *mds_osc_exp; /* XXX lov_exp */
522 struct lov_desc mds_lov_desc;
525 /* mark pages dirty for write. */
526 bitmap_t *mds_lov_page_dirty;
527 /* array for store pages with obd_id */
528 void **mds_lov_page_array;
529 /* file for store objid */
530 struct file *mds_lov_objid_filp;
531 __u32 mds_lov_objid_count;
532 __u32 mds_lov_objid_max_index;
533 __u32 mds_lov_objid_lastpage;
534 __u32 mds_lov_objid_lastidx;
536 struct file *mds_health_check_filp;
537 unsigned long *mds_client_bitmap;
538 // struct upcall_cache *mds_group_hash;
540 struct lustre_quota_info mds_quota_info;
541 struct semaphore mds_qonoff_sem;
542 struct semaphore mds_health_sem;
543 unsigned long mds_fl_user_xattr:1,
545 mds_evict_ost_nids:1,
549 mds_fl_target:1; /* mds have one or
552 struct upcall_cache *mds_identity_cache;
554 /* for capability keys update */
555 struct lustre_capa_key *mds_capa_keys;
556 struct rw_semaphore mds_notify_lock;
560 extern __u32 mds_max_ost_index;
562 #define MDS_LOV_ALLOC_SIZE (CFS_PAGE_SIZE)
564 #define OBJID_PER_PAGE() (MDS_LOV_ALLOC_SIZE / sizeof(obd_id))
566 #define MDS_LOV_OBJID_PAGES_COUNT (mds_max_ost_index/OBJID_PER_PAGE())
568 extern int mds_lov_init_objids(struct obd_device *obd);
569 extern void mds_lov_destroy_objids(struct obd_device *obd);
582 struct lustre_handle eo_nl_lock;
587 struct ptlrpc_service *ost_service;
588 struct ptlrpc_service *ost_create_service;
589 struct ptlrpc_service *ost_io_service;
590 struct semaphore ost_health_sem;
593 struct echo_client_obd {
594 struct obd_export *ec_exp; /* the local connection to osc/lov */
596 struct list_head ec_objects;
597 struct list_head ec_locks;
603 struct obd_uuid lqo_uuid; /* ptlrpc's c_remote_uuid */
604 struct list_head lqo_oss_list; /* link to lov_qos */
605 __u64 lqo_bavail; /* total bytes avail on OSS */
606 __u64 lqo_penalty; /* current penalty */
607 __u64 lqo_penalty_per_obj; /* penalty decrease every obj*/
608 time_t lqo_used; /* last used time, seconds */
609 __u32 lqo_ost_count; /* number of osts on this oss */
613 struct lov_qos_oss *ltq_oss; /* oss info */
614 __u64 ltq_penalty; /* current penalty */
615 __u64 ltq_penalty_per_obj; /* penalty decrease every obj*/
616 __u64 ltq_weight; /* net weighting */
617 time_t ltq_used; /* last used time, seconds */
618 unsigned int ltq_usable:1; /* usable for striping */
621 /* Generic subset of OSTs */
623 __u32 *op_array; /* array of index of
625 unsigned int op_count; /* number of OSTs in the array */
626 unsigned int op_size; /* allocated size of lp_array */
627 struct rw_semaphore op_rw_sem; /* to protect ost_pool use */
630 /* Round-robin allocator data */
632 __u32 lqr_start_idx; /* start index of new inode */
633 __u32 lqr_offset_idx; /* aliasing for start_idx */
634 int lqr_start_count; /* reseed counter */
635 struct ost_pool lqr_pool; /* round-robin optimized list */
636 unsigned long lqr_dirty:1; /* recalc round-robin list */
639 /* Stripe placement optimization */
641 struct list_head lq_oss_list; /* list of OSSs that targets use */
642 struct rw_semaphore lq_rw_sem;
643 __u32 lq_active_oss_count;
644 unsigned int lq_prio_free; /* priority for free space */
645 unsigned int lq_threshold_rr;/* priority for rr */
646 struct lov_qos_rr lq_rr; /* round robin qos data */
647 unsigned long lq_dirty:1, /* recalc qos data */
648 lq_same_space:1,/* the ost's all have approx.
649 the same space avail */
650 lq_reset:1; /* zero current penalties */
653 struct lov_tgt_desc {
654 struct list_head ltd_kill;
655 struct obd_uuid ltd_uuid;
656 struct obd_export *ltd_exp;
657 struct ltd_qos ltd_qos; /* qos info per target */
659 __u32 ltd_index; /* index in lov_obd->tgts */
660 unsigned long ltd_active:1,/* is this target up for requests */
661 ltd_activate:1,/* should this target be activated */
662 ltd_reap:1; /* should this target be deleted */
666 #define pool_tgt_size(_p) _p->pool_obds.op_size
667 #define pool_tgt_count(_p) _p->pool_obds.op_count
668 #define pool_tgt_array(_p) _p->pool_obds.op_array
669 #define pool_tgt_rw_sem(_p) _p->pool_obds.op_rw_sem
670 #define pool_tgt(_p, _i) _p->pool_lov->lov_tgts[_p->pool_obds.op_array[_i]]
673 char pool_name[LOV_MAXPOOLNAME + 1]; /* name of pool */
674 struct ost_pool pool_obds; /* pool members */
675 atomic_t pool_refcount; /* pool ref. counter */
676 struct lov_qos_rr pool_rr; /* round robin qos */
677 struct hlist_node pool_hash; /* access by poolname */
678 struct list_head pool_list; /* serial access */
679 cfs_proc_dir_entry_t *pool_proc_entry; /* file in /proc */
680 struct lov_obd *pool_lov; /* lov obd to which this
685 struct lov_desc desc;
686 struct lov_tgt_desc **lov_tgts; /* sparse array */
687 struct ost_pool lov_packed; /* all OSTs in a packed
689 struct semaphore lov_lock;
690 struct obd_connect_data lov_ocd;
691 struct lov_qos lov_qos; /* qos info per lov */
692 atomic_t lov_refcount;
693 __u32 lov_tgt_count; /* how many OBD's */
694 __u32 lov_active_tgt_count; /* how many active */
695 __u32 lov_death_row;/* tgts scheduled to be deleted */
696 __u32 lov_tgt_size; /* size of tgts array */
699 lustre_hash_t *lov_pools_hash_body; /* used for key access */
700 struct list_head lov_pool_list; /* used for sequential access */
701 cfs_proc_dir_entry_t *lov_pool_proc_entry;
702 enum lustre_sec_part lov_sp_me;
705 struct lmv_tgt_desc {
706 struct obd_uuid ltd_uuid;
707 struct obd_export *ltd_exp;
708 int ltd_active; /* is this target up for requests */
710 struct semaphore ltd_fid_sem;
713 enum placement_policy {
714 PLACEMENT_CHAR_POLICY = 0,
715 PLACEMENT_NID_POLICY = 1,
716 PLACEMENT_INVAL_POLICY = 2,
720 typedef enum placement_policy placement_policy_t;
724 struct lu_client_fld lmv_fld;
726 placement_policy_t lmv_placement;
727 struct lmv_desc desc;
728 struct obd_uuid cluuid;
729 struct obd_export *exp;
736 struct semaphore init_sem;
738 struct lmv_tgt_desc *tgts;
741 struct obd_connect_data *datas;
744 struct obd_connect_data conn_data;
747 struct niobuf_local {
752 cfs_dentry_t *dentry;
757 #define LUSTRE_FLD_NAME "fld"
758 #define LUSTRE_SEQ_NAME "seq"
760 #define LUSTRE_CMM_NAME "cmm"
761 #define LUSTRE_MDD_NAME "mdd"
762 #define LUSTRE_OSD_NAME "osd"
763 #define LUSTRE_VVP_NAME "vvp"
764 #define LUSTRE_LMV_NAME "lmv"
765 #define LUSTRE_CMM_MDC_NAME "cmm-mdc"
766 #define LUSTRE_SLP_NAME "slp"
768 /* obd device type names */
769 /* FIXME all the references to LUSTRE_MDS_NAME should be swapped with LUSTRE_MDT_NAME */
770 #define LUSTRE_MDS_NAME "mds"
771 #define LUSTRE_MDT_NAME "mdt"
772 #define LUSTRE_MDC_NAME "mdc"
773 #define LUSTRE_OSS_NAME "ost" /* FIXME change name to oss */
774 #define LUSTRE_OST_NAME "obdfilter" /* FIXME change name to ost */
775 #define LUSTRE_OSC_NAME "osc"
776 #define LUSTRE_LOV_NAME "lov"
777 #define LUSTRE_MGS_NAME "mgs"
778 #define LUSTRE_MGC_NAME "mgc"
780 #define LUSTRE_CACHEOBD_NAME "cobd"
781 #define LUSTRE_ECHO_NAME "obdecho"
782 #define LUSTRE_ECHO_CLIENT_NAME "echo_client"
784 /* Constant obd names (post-rename) */
785 #define LUSTRE_MDS_OBDNAME "MDS"
786 #define LUSTRE_OSS_OBDNAME "OSS"
787 #define LUSTRE_MGS_OBDNAME "MGS"
788 #define LUSTRE_MGC_OBDNAME "MGC"
790 /* Don't conflict with on-wire flags OBD_BRW_WRITE, etc */
791 #define N_LOCAL_TEMP_PAGE 0x10000000
793 struct obd_trans_info {
796 /* Only used on the server side for tracking acks. */
797 struct oti_req_ack_lock {
798 struct lustre_handle lock;
802 struct llog_cookie oti_onecookie;
803 struct llog_cookie *oti_logcookies;
806 /* initial thread handling transaction */
807 struct ptlrpc_thread * oti_thread;
810 struct obd_uuid *oti_ost_uuid;
813 static inline void oti_init(struct obd_trans_info *oti,
814 struct ptlrpc_request *req)
818 memset(oti, 0, sizeof(*oti));
823 oti->oti_xid = req->rq_xid;
825 if (req->rq_repmsg != NULL)
826 oti->oti_transno = lustre_msg_get_transno(req->rq_repmsg);
827 oti->oti_thread = req->rq_svc_thread;
828 if (req->rq_reqmsg != NULL)
829 oti->oti_conn_cnt = lustre_msg_get_conn_cnt(req->rq_reqmsg);
832 static inline void oti_alloc_cookies(struct obd_trans_info *oti,int num_cookies)
837 if (num_cookies == 1)
838 oti->oti_logcookies = &oti->oti_onecookie;
840 OBD_ALLOC(oti->oti_logcookies,
841 num_cookies * sizeof(oti->oti_onecookie));
843 oti->oti_numcookies = num_cookies;
846 static inline void oti_free_cookies(struct obd_trans_info *oti)
848 if (!oti || !oti->oti_logcookies)
851 if (oti->oti_logcookies == &oti->oti_onecookie)
852 LASSERT(oti->oti_numcookies == 1);
854 OBD_FREE(oti->oti_logcookies,
855 oti->oti_numcookies * sizeof(oti->oti_onecookie));
856 oti->oti_logcookies = NULL;
857 oti->oti_numcookies = 0;
861 * Events signalled through obd_notify() upcall-chain.
863 enum obd_notify_event {
864 /* Device connect start */
866 /* Device activated */
868 /* Device deactivated */
870 /* Device disconnected */
872 /* Connect data for import were changed */
875 OBD_NOTIFY_SYNC_NONBLOCK,
877 /* Configuration event */
881 /* bit-mask flags for config events */
883 CONFIG_LOG = 0x1, /* finished processing config log */
884 CONFIG_SYNC = 0x2, /* mdt synced 1 ost */
885 CONFIG_TARGET = 0x4 /* one target is added */
889 * Data structure used to pass obd_notify()-event to non-obd listeners (llite
890 * and liblustre being main examples).
892 struct obd_notify_upcall {
893 int (*onu_upcall)(struct obd_device *host, struct obd_device *watched,
894 enum obd_notify_event ev, void *owner);
895 /* Opaque datum supplied by upper layer listener */
899 struct target_recovery_data {
900 svc_handler_t trd_recovery_handler;
901 pid_t trd_processing_task;
902 struct completion trd_starting;
903 struct completion trd_finishing;
907 FILTER_GROUP_MDS0 = 0,
908 FILTER_GROUP_LLOG = 1,
909 FILTER_GROUP_ECHO = 2 ,
910 FILTER_GROUP_MDS1_N_BASE = 3
913 static inline __u64 obdo_mdsno(struct obdo *oa)
916 return oa->o_gr - FILTER_GROUP_MDS1_N_BASE;
920 static inline int mdt_to_obd_objgrp(int mdtid)
923 return FILTER_GROUP_MDS1_N_BASE + mdtid;
928 * In HEAD for CMD, the object is created in group number which is 3>=
929 * or indexing starts from 3. To test this assertions are added to disallow
930 * group 0. But to run 2.0 mds server on 1.8.x disk format (i.e. interop_mode)
931 * object in group 0 needs to be allowed.
932 * So for interop mode following changes needs to be done:
933 * 1. No need to assert on group 0 or allow group 0
934 * 2. The group number indexing starts from 0 instead of 3
937 #define CHECK_MDS_GROUP(group) (group == FILTER_GROUP_MDS0 || \
938 group > FILTER_GROUP_MDS1_N_BASE)
939 #define LASSERT_MDS_GROUP(group) LASSERT(CHECK_MDS_GROUP(group))
941 struct obd_llog_group {
942 struct list_head olg_list;
944 struct llog_ctxt *olg_ctxts[LLOG_MAX_CTXTS];
945 cfs_waitq_t olg_waitq;
947 struct obd_export *olg_exp;
948 int olg_initializing;
949 struct semaphore olg_cat_processing;
952 /* corresponds to one of the obd's */
953 #define MAX_OBD_NAME 128
954 #define OBD_DEVICE_MAGIC 0XAB5CD6EF
955 #define OBD_DEV_BY_DEVNAME 0xffffd0de
957 struct obd_type *obd_type;
960 /* common and UUID name of this device */
961 char obd_name[MAX_OBD_NAME];
962 struct obd_uuid obd_uuid;
964 struct lu_device *obd_lu_dev;
967 unsigned long obd_attached:1, /* finished attach */
968 obd_set_up:1, /* finished setup */
969 obd_recovering:1, /* there are recoverable clients */
970 obd_abort_recovery:1,/* somebody ioctl'ed us to abort */
971 obd_replayable:1, /* recovery is enabled; inform clients */
972 obd_no_transno:1, /* no committed-transno notification */
973 obd_no_recov:1, /* fail instead of retry messages */
974 obd_req_replaying:1, /* replaying requests */
975 obd_stopping:1, /* started cleanup */
976 obd_starting:1, /* started setup */
977 obd_force:1, /* cleanup with > 0 obd refcount */
978 obd_fail:1, /* cleanup with failover */
979 obd_async_recov:1, /* allow asyncronous orphan cleanup */
980 obd_no_conn:1, /* deny new connections */
981 obd_inactive:1; /* device active/inactive
982 * (for /proc/status only!!) */
983 /* uuid-export hash body */
984 struct lustre_hash *obd_uuid_hash;
985 /* nid-export hash body */
986 struct lustre_hash *obd_nid_hash;
988 struct lustre_hash *obd_nid_stats_hash;
989 struct list_head obd_nid_stats;
990 atomic_t obd_refcount;
991 cfs_waitq_t obd_refcount_waitq;
992 struct list_head obd_exports;
994 spinlock_t obd_nid_lock;
995 struct ldlm_namespace *obd_namespace;
996 struct ptlrpc_client obd_ldlm_client; /* XXX OST/MDS only */
997 /* a spinlock is OK for what we do now, may need a semaphore later */
998 spinlock_t obd_dev_lock;
999 struct semaphore obd_dev_sem;
1000 __u64 obd_last_committed;
1001 struct fsfilt_operations *obd_fsops;
1002 spinlock_t obd_osfs_lock;
1003 struct obd_statfs obd_osfs; /* locked by obd_osfs_lock */
1005 struct lvfs_run_ctxt obd_lvfs_ctxt;
1006 struct obd_llog_group obd_olg; /* default llog group */
1007 struct obd_device *obd_observer;
1008 struct obd_notify_upcall obd_upcall;
1009 struct obd_export *obd_self_export;
1010 /* list of exports in LRU order, for ping evictor, with obd_dev_lock */
1011 struct list_head obd_exports_timed;
1012 time_t obd_eviction_timer; /* for ping evictor */
1014 /* XXX encapsulate all this recovery data into one struct */
1015 svc_handler_t obd_recovery_handler;
1016 pid_t obd_processing_task;
1018 int obd_max_recoverable_clients;
1019 int obd_connected_clients;
1020 int obd_recoverable_clients;
1021 spinlock_t obd_processing_task_lock; /* BH lock (timer) */
1022 __u64 obd_next_recovery_transno;
1023 int obd_replayed_requests;
1024 int obd_requests_queued_for_recovery;
1025 cfs_waitq_t obd_next_transno_waitq;
1026 struct list_head obd_uncommitted_replies;
1027 spinlock_t obd_uncommitted_replies_lock;
1028 cfs_timer_t obd_recovery_timer;
1029 time_t obd_recovery_start; /* seconds */
1030 time_t obd_recovery_end; /* seconds, for lprocfs_status */
1031 time_t obd_recovery_max_time; /* seconds, bz13079 */
1032 int obd_recovery_timeout;
1034 /* new recovery stuff from CMD2 */
1035 struct target_recovery_data obd_recovery_data;
1036 int obd_replayed_locks;
1037 atomic_t obd_req_replay_clients;
1038 atomic_t obd_lock_replay_clients;
1039 struct list_head obd_req_replay_queue;
1040 struct list_head obd_lock_replay_queue;
1041 struct list_head obd_final_req_queue;
1042 int obd_recovery_stage;
1045 struct obd_device_target obt;
1046 struct filter_obd filter;
1048 struct client_obd cli;
1050 struct echo_client_obd echo_client;
1051 struct echo_obd echo;
1056 /* Fields used by LProcFS */
1057 unsigned int obd_cntr_base;
1058 struct lprocfs_stats *obd_stats;
1060 unsigned int md_cntr_base;
1061 struct lprocfs_stats *md_stats;
1063 cfs_proc_dir_entry_t *obd_proc_entry;
1064 cfs_proc_dir_entry_t *obd_proc_exports_entry;
1065 cfs_proc_dir_entry_t *obd_svc_procroot;
1066 struct lprocfs_stats *obd_svc_stats;
1067 atomic_t obd_evict_inprogress;
1068 cfs_waitq_t obd_evict_inprogress_waitq;
1071 * Ldlm pool part. Save last calculated SLV and Limit.
1073 rwlock_t obd_pool_lock;
1078 * A list of outstanding class_incref()'s against this obd. For
1081 struct lu_ref obd_reference;
1084 #define OBD_LLOG_FL_SENDNOW 0x0001
1086 enum obd_cleanup_stage {
1087 /* Special case hack for MDS LOVs */
1089 /* can be directly mapped to .ldto_device_fini() */
1090 OBD_CLEANUP_EXPORTS,
1093 /* get/set_info keys */
1094 #define KEY_BLOCKSIZE_BITS "blocksize_bits"
1095 #define KEY_BLOCKSIZE "blocksize"
1096 #define KEY_CAPA_KEY "capa_key"
1097 #define KEY_CHANGELOG_CLEAR "changelog_clear"
1098 #define KEY_CHECKSUM "checksum"
1099 #define KEY_CLEAR_FS "clear_fs"
1100 #define KEY_CONN_DATA "conn_data"
1101 #define KEY_EVICT_BY_NID "evict_by_nid"
1102 #define KEY_FIEMAP "fiemap"
1103 #define KEY_FLUSH_CTX "flush_ctx"
1104 #define KEY_INIT_RECOV_BACKUP "init_recov_bk"
1105 #define KEY_INIT_RECOV "initial_recov"
1106 #define KEY_LAST_ID "last_id"
1107 #define KEY_LOCK_TO_STRIPE "lock_to_stripe"
1108 #define KEY_LOVDESC "lovdesc"
1109 #define KEY_LOV_IDX "lov_idx"
1110 #define KEY_MAX_EASIZE "max_easize"
1111 #define KEY_MDS_CONN "mds_conn"
1112 #define KEY_MGSSEC "mgssec"
1113 #define KEY_NEXT_ID "next_id"
1114 #define KEY_READ_ONLY "read-only"
1115 #define KEY_REGISTER_TARGET "register_target"
1116 #define KEY_REVIMP_UPD "revimp_update"
1117 #define KEY_SET_FS "set_fs"
1118 #define KEY_SPTLRPC_CONF "sptlrpc_conf"
1119 #define KEY_UNLINKED "unlinked"
1121 #define KEY_INTERMDS "inter_mds"
1122 #define KEY_ASYNC "async"
1126 static inline int it_to_lock_mode(struct lookup_intent *it)
1128 /* CREAT needs to be tested before open (both could be set) */
1129 if (it->it_op & IT_CREAT)
1131 else if (it->it_op & (IT_READDIR | IT_GETATTR | IT_OPEN | IT_LOOKUP))
1134 LASSERTF(0, "Invalid it_op: %d\n", it->it_op);
1139 struct lu_fid op_fid1; /* operation fid1 (usualy parent) */
1140 struct lu_fid op_fid2; /* operation fid2 (usualy child) */
1141 struct lu_fid op_fid3; /* 2 extra fids to find conflicting */
1142 struct lu_fid op_fid4; /* to the operation locks. */
1143 mdsno_t op_mds; /* what mds server open will go to */
1144 struct lustre_handle op_handle;
1146 const char *op_name;
1149 struct lmv_stripe_md *op_mea1;
1150 struct lmv_stripe_md *op_mea2;
1151 __u32 op_suppgids[2];
1157 /* iattr fields and blocks. */
1158 struct iattr op_attr;
1160 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,14)
1161 unsigned int op_attr_flags;
1164 loff_t op_attr_blocks;
1166 /* Size-on-MDS epoch and flags. */
1171 struct obd_capa *op_capa1;
1172 struct obd_capa *op_capa2;
1174 /* Various operation flags. */
1177 /* Operation type */
1181 struct md_enqueue_info;
1182 /* metadata stat-ahead */
1183 typedef int (* md_enqueue_cb_t)(struct ptlrpc_request *req,
1184 struct md_enqueue_info *minfo,
1187 struct md_enqueue_info {
1188 struct md_op_data mi_data;
1189 struct lookup_intent mi_it;
1190 struct lustre_handle mi_lockh;
1191 struct dentry *mi_dentry;
1192 md_enqueue_cb_t mi_cb;
1193 unsigned int mi_generation;
1198 struct module *o_owner;
1199 int (*o_iocontrol)(unsigned int cmd, struct obd_export *exp, int len,
1200 void *karg, void *uarg);
1201 int (*o_get_info)(struct obd_export *, __u32 keylen, void *key,
1202 __u32 *vallen, void *val, struct lov_stripe_md *lsm);
1203 int (*o_set_info_async)(struct obd_export *, __u32 keylen, void *key,
1204 __u32 vallen, void *val,
1205 struct ptlrpc_request_set *set);
1206 int (*o_attach)(struct obd_device *dev, obd_count len, void *data);
1207 int (*o_detach)(struct obd_device *dev);
1208 int (*o_setup) (struct obd_device *dev, struct lustre_cfg *cfg);
1209 int (*o_precleanup)(struct obd_device *dev,
1210 enum obd_cleanup_stage cleanup_stage);
1211 int (*o_cleanup)(struct obd_device *dev);
1212 int (*o_process_config)(struct obd_device *dev, obd_count len,
1214 int (*o_postrecov)(struct obd_device *dev);
1215 int (*o_add_conn)(struct obd_import *imp, struct obd_uuid *uuid,
1217 int (*o_del_conn)(struct obd_import *imp, struct obd_uuid *uuid);
1218 /* connect to the target device with given connection
1219 * data. @ocd->ocd_connect_flags is modified to reflect flags actually
1220 * granted by the target, which are guaranteed to be a subset of flags
1221 * asked for. If @ocd == NULL, use default parameters. */
1222 int (*o_connect)(const struct lu_env *env,
1223 struct obd_export **exp, struct obd_device *src,
1224 struct obd_uuid *cluuid, struct obd_connect_data *ocd,
1226 int (*o_reconnect)(const struct lu_env *env,
1227 struct obd_export *exp, struct obd_device *src,
1228 struct obd_uuid *cluuid,
1229 struct obd_connect_data *ocd,
1231 int (*o_disconnect)(struct obd_export *exp);
1233 /* Initialize/finalize fids infrastructure. */
1234 int (*o_fid_init)(struct obd_export *exp);
1235 int (*o_fid_fini)(struct obd_export *exp);
1237 /* Allocate new fid according to passed @hint. */
1238 int (*o_fid_alloc)(struct obd_export *exp, struct lu_fid *fid,
1239 struct md_op_data *op_data);
1242 * Object with @fid is getting deleted, we may want to do something
1245 int (*o_fid_delete)(struct obd_export *exp, const struct lu_fid *fid);
1247 int (*o_statfs)(struct obd_device *obd, struct obd_statfs *osfs,
1248 __u64 max_age, __u32 flags);
1249 int (*o_statfs_async)(struct obd_device *obd, struct obd_info *oinfo,
1250 __u64 max_age, struct ptlrpc_request_set *set);
1251 int (*o_packmd)(struct obd_export *exp, struct lov_mds_md **disk_tgt,
1252 struct lov_stripe_md *mem_src);
1253 int (*o_unpackmd)(struct obd_export *exp,struct lov_stripe_md **mem_tgt,
1254 struct lov_mds_md *disk_src, int disk_len);
1255 int (*o_checkmd)(struct obd_export *exp, struct obd_export *md_exp,
1256 struct lov_stripe_md *mem_tgt);
1257 int (*o_preallocate)(struct lustre_handle *, obd_count *req,
1259 /* FIXME: add fid capability support for create & destroy! */
1260 int (*o_precreate)(struct obd_export *exp);
1261 int (*o_create)(struct obd_export *exp, struct obdo *oa,
1262 struct lov_stripe_md **ea, struct obd_trans_info *oti);
1263 int (*o_destroy)(struct obd_export *exp, struct obdo *oa,
1264 struct lov_stripe_md *ea, struct obd_trans_info *oti,
1265 struct obd_export *md_exp, void *capa);
1266 int (*o_setattr)(struct obd_export *exp, struct obd_info *oinfo,
1267 struct obd_trans_info *oti);
1268 int (*o_setattr_async)(struct obd_export *exp, struct obd_info *oinfo,
1269 struct obd_trans_info *oti,
1270 struct ptlrpc_request_set *rqset);
1271 int (*o_getattr)(struct obd_export *exp, struct obd_info *oinfo);
1272 int (*o_getattr_async)(struct obd_export *exp, struct obd_info *oinfo,
1273 struct ptlrpc_request_set *set);
1274 int (*o_brw)(int rw, struct obd_export *exp, struct obd_info *oinfo,
1275 obd_count oa_bufs, struct brw_page *pgarr,
1276 struct obd_trans_info *oti);
1277 int (*o_merge_lvb)(struct obd_export *exp, struct lov_stripe_md *lsm,
1278 struct ost_lvb *lvb, int kms_only);
1279 int (*o_adjust_kms)(struct obd_export *exp, struct lov_stripe_md *lsm,
1280 obd_off size, int shrink);
1281 int (*o_punch)(struct obd_export *exp, struct obd_info *oinfo,
1282 struct obd_trans_info *oti,
1283 struct ptlrpc_request_set *rqset);
1284 int (*o_sync)(struct obd_export *exp, struct obdo *oa,
1285 struct lov_stripe_md *ea, obd_size start, obd_size end,
1287 int (*o_migrate)(struct lustre_handle *conn, struct lov_stripe_md *dst,
1288 struct lov_stripe_md *src, obd_size start,
1289 obd_size end, struct obd_trans_info *oti);
1290 int (*o_copy)(struct lustre_handle *dstconn, struct lov_stripe_md *dst,
1291 struct lustre_handle *srconn, struct lov_stripe_md *src,
1292 obd_size start, obd_size end, struct obd_trans_info *);
1293 int (*o_iterate)(struct lustre_handle *conn,
1294 int (*)(obd_id, obd_gr, void *),
1295 obd_id *startid, obd_gr group, void *data);
1296 int (*o_preprw)(int cmd, struct obd_export *exp, struct obdo *oa,
1297 int objcount, struct obd_ioobj *obj,
1298 struct niobuf_remote *remote, int *nr_pages,
1299 struct niobuf_local *local,
1300 struct obd_trans_info *oti,
1301 struct lustre_capa *capa);
1302 int (*o_commitrw)(int cmd, struct obd_export *exp, struct obdo *oa,
1303 int objcount, struct obd_ioobj *obj,
1304 struct niobuf_remote *remote, int pages,
1305 struct niobuf_local *local,
1306 struct obd_trans_info *oti, int rc);
1307 int (*o_enqueue)(struct obd_export *, struct obd_info *oinfo,
1308 struct ldlm_enqueue_info *einfo,
1309 struct ptlrpc_request_set *rqset);
1310 int (*o_change_cbdata)(struct obd_export *, struct lov_stripe_md *,
1311 ldlm_iterator_t it, void *data);
1312 int (*o_cancel)(struct obd_export *, struct lov_stripe_md *md,
1313 __u32 mode, struct lustre_handle *);
1314 int (*o_cancel_unused)(struct obd_export *, struct lov_stripe_md *,
1315 int flags, void *opaque);
1316 int (*o_init_export)(struct obd_export *exp);
1317 int (*o_destroy_export)(struct obd_export *exp);
1318 int (*o_extent_calc)(struct obd_export *, struct lov_stripe_md *,
1319 int cmd, obd_off *);
1321 /* llog related obd_methods */
1322 int (*o_llog_init)(struct obd_device *obd, struct obd_llog_group *grp,
1323 struct obd_device *disk_obd, int count,
1324 struct llog_catid *logid, struct obd_uuid *uuid);
1325 int (*o_llog_finish)(struct obd_device *obd, int count);
1326 int (*o_llog_connect)(struct obd_export *, struct llogd_conn_body *);
1328 /* metadata-only methods */
1329 int (*o_pin)(struct obd_export *, const struct lu_fid *fid,
1330 struct obd_capa *, struct obd_client_handle *, int flag);
1331 int (*o_unpin)(struct obd_export *, struct obd_client_handle *, int);
1333 int (*o_import_event)(struct obd_device *, struct obd_import *,
1334 enum obd_import_event);
1336 int (*o_notify)(struct obd_device *obd, struct obd_device *watched,
1337 enum obd_notify_event ev, void *data);
1339 int (*o_health_check)(struct obd_device *);
1340 struct obd_uuid *(*o_get_uuid) (struct obd_export *exp);
1343 int (*o_quotacheck)(struct obd_device *, struct obd_export *,
1344 struct obd_quotactl *);
1345 int (*o_quotactl)(struct obd_device *, struct obd_export *,
1346 struct obd_quotactl *);
1347 int (*o_quota_adjust_qunit)(struct obd_export *exp,
1348 struct quota_adjust_qunit *oqaq,
1349 struct lustre_quota_ctxt *qctxt);
1352 int (*o_ping)(struct obd_export *exp);
1355 int (*o_pool_new)(struct obd_device *obd, char *poolname);
1356 int (*o_pool_del)(struct obd_device *obd, char *poolname);
1357 int (*o_pool_add)(struct obd_device *obd, char *poolname,
1359 int (*o_pool_rem)(struct obd_device *obd, char *poolname,
1362 * NOTE: If adding ops, add another LPROCFS_OBD_OP_INIT() line
1363 * to lprocfs_alloc_obd_stats() in obdclass/lprocfs_status.c.
1364 * Also, add a wrapper function in include/linux/obd_class.h. */
1368 LUSTRE_OPC_MKDIR = (1 << 0),
1369 LUSTRE_OPC_SYMLINK = (1 << 1),
1370 LUSTRE_OPC_MKNOD = (1 << 2),
1371 LUSTRE_OPC_CREATE = (1 << 3),
1372 LUSTRE_OPC_ANY = (1 << 4)
1375 /* lmv structures */
1376 #define MEA_MAGIC_LAST_CHAR 0xb2221ca1
1377 #define MEA_MAGIC_ALL_CHARS 0xb222a11c
1378 #define MEA_MAGIC_HASH_SEGMENT 0xb222a11b
1380 #define MAX_HASH_SIZE_32 0x7fffffffUL
1381 #define MAX_HASH_SIZE 0x7fffffffffffffffULL
1382 #define MAX_HASH_HIGHEST_BIT 0x1000000000000000ULL
1385 struct mdt_body *body;
1386 struct lov_stripe_md *lsm;
1387 struct lmv_stripe_md *mea;
1388 #ifdef CONFIG_FS_POSIX_ACL
1389 struct posix_acl *posix_acl;
1391 struct mdt_remote_perm *remote_perm;
1392 struct obd_capa *mds_capa;
1393 struct obd_capa *oss_capa;
1396 struct md_open_data {
1397 struct obd_client_handle *mod_och;
1398 struct list_head mod_replay_list;
1401 struct lookup_intent;
1404 int (*m_getstatus)(struct obd_export *, struct lu_fid *,
1405 struct obd_capa **);
1406 int (*m_change_cbdata)(struct obd_export *, const struct lu_fid *,
1407 ldlm_iterator_t, void *);
1408 int (*m_close)(struct obd_export *, struct md_op_data *,
1409 struct md_open_data *, struct ptlrpc_request **);
1410 int (*m_create)(struct obd_export *, struct md_op_data *,
1411 const void *, int, int, __u32, __u32, cfs_cap_t,
1412 __u64, struct ptlrpc_request **);
1413 int (*m_done_writing)(struct obd_export *, struct md_op_data *,
1414 struct md_open_data *);
1415 int (*m_enqueue)(struct obd_export *, struct ldlm_enqueue_info *,
1416 struct lookup_intent *, struct md_op_data *,
1417 struct lustre_handle *, void *, int,
1418 struct ptlrpc_request **, int);
1419 int (*m_getattr)(struct obd_export *, const struct lu_fid *,
1420 struct obd_capa *, obd_valid, int,
1421 struct ptlrpc_request **);
1422 int (*m_getattr_name)(struct obd_export *, const struct lu_fid *,
1423 struct obd_capa *, const char *, int, obd_valid,
1424 int, __u32, struct ptlrpc_request **);
1425 int (*m_intent_lock)(struct obd_export *, struct md_op_data *,
1426 void *, int, struct lookup_intent *, int,
1427 struct ptlrpc_request **,
1428 ldlm_blocking_callback, int);
1429 int (*m_link)(struct obd_export *, struct md_op_data *,
1430 struct ptlrpc_request **);
1431 int (*m_rename)(struct obd_export *, struct md_op_data *,
1432 const char *, int, const char *, int,
1433 struct ptlrpc_request **);
1434 int (*m_is_subdir)(struct obd_export *, const struct lu_fid *,
1435 const struct lu_fid *,
1436 struct ptlrpc_request **);
1437 int (*m_setattr)(struct obd_export *, struct md_op_data *, void *,
1438 int , void *, int, struct ptlrpc_request **,
1439 struct md_open_data **mod);
1440 int (*m_sync)(struct obd_export *, const struct lu_fid *,
1441 struct obd_capa *, struct ptlrpc_request **);
1442 int (*m_readpage)(struct obd_export *, const struct lu_fid *,
1443 struct obd_capa *, __u64, struct page *,
1444 struct ptlrpc_request **);
1446 int (*m_unlink)(struct obd_export *, struct md_op_data *,
1447 struct ptlrpc_request **);
1449 int (*m_setxattr)(struct obd_export *, const struct lu_fid *,
1450 struct obd_capa *, obd_valid, const char *,
1451 const char *, int, int, int, __u32,
1452 struct ptlrpc_request **);
1454 int (*m_getxattr)(struct obd_export *, const struct lu_fid *,
1455 struct obd_capa *, obd_valid, const char *,
1456 const char *, int, int, int,
1457 struct ptlrpc_request **);
1459 int (*m_init_ea_size)(struct obd_export *, int, int, int);
1461 int (*m_get_lustre_md)(struct obd_export *, struct ptlrpc_request *,
1462 struct obd_export *, struct obd_export *,
1463 struct lustre_md *);
1465 int (*m_free_lustre_md)(struct obd_export *, struct lustre_md *);
1467 int (*m_set_open_replay_data)(struct obd_export *,
1468 struct obd_client_handle *,
1469 struct ptlrpc_request *);
1470 int (*m_clear_open_replay_data)(struct obd_export *,
1471 struct obd_client_handle *);
1472 int (*m_set_lock_data)(struct obd_export *, __u64 *, void *);
1474 ldlm_mode_t (*m_lock_match)(struct obd_export *, int,
1475 const struct lu_fid *, ldlm_type_t,
1476 ldlm_policy_data_t *, ldlm_mode_t,
1477 struct lustre_handle *);
1479 int (*m_cancel_unused)(struct obd_export *, const struct lu_fid *,
1480 ldlm_policy_data_t *, ldlm_mode_t, int flags,
1482 int (*m_renew_capa)(struct obd_export *, struct obd_capa *oc,
1483 renew_capa_cb_t cb);
1484 int (*m_unpack_capa)(struct obd_export *, struct ptlrpc_request *,
1485 const struct req_msg_field *, struct obd_capa **);
1487 int (*m_get_remote_perm)(struct obd_export *, const struct lu_fid *,
1488 struct obd_capa *, __u32,
1489 struct ptlrpc_request **);
1491 int (*m_intent_getattr_async)(struct obd_export *,
1492 struct md_enqueue_info *,
1493 struct ldlm_enqueue_info *);
1495 int (*m_revalidate_lock)(struct obd_export *,
1496 struct lookup_intent *,
1500 * NOTE: If adding ops, add another LPROCFS_MD_OP_INIT() line to
1501 * lprocfs_alloc_md_stats() in obdclass/lprocfs_status.c. Also, add a
1502 * wrapper function in include/linux/obd_class.h.
1506 struct lsm_operations {
1507 void (*lsm_free)(struct lov_stripe_md *);
1508 int (*lsm_destroy)(struct lov_stripe_md *, struct obdo *oa,
1509 struct obd_export *md_exp);
1510 void (*lsm_stripe_by_index)(struct lov_stripe_md *, int *, obd_off *,
1512 void (*lsm_stripe_by_offset)(struct lov_stripe_md *, int *, obd_off *,
1514 obd_off (*lsm_stripe_offset_by_index)(struct lov_stripe_md *, int);
1515 obd_off (*lsm_stripe_offset_by_offset)(struct lov_stripe_md *, obd_off);
1516 int (*lsm_stripe_index_by_offset)(struct lov_stripe_md *, obd_off);
1517 int (*lsm_revalidate) (struct lov_stripe_md *, struct obd_device *obd);
1518 int (*lsm_lmm_verify) (struct lov_mds_md *lmm, int lmm_bytes,
1520 int (*lsm_unpackmd) (struct lov_obd *lov, struct lov_stripe_md *lsm,
1521 struct lov_mds_md *lmm);
1524 extern const struct lsm_operations lsm_v1_ops;
1525 extern const struct lsm_operations lsm_join_ops;
1526 extern const struct lsm_operations lsm_v3_ops;
1527 static inline const struct lsm_operations *lsm_op_find(int magic)
1532 case LOV_MAGIC_JOIN:
1533 return &lsm_join_ops;
1537 CERROR("Cannot recognize lsm_magic %d\n", magic);
1542 int lvfs_check_io_health(struct obd_device *obd, struct file *file);
1544 /* Requests for obd_extent_calc() */
1545 #define OBD_CALC_STRIPE_START 1
1546 #define OBD_CALC_STRIPE_END 2
1548 static inline void obd_transno_commit_cb(struct obd_device *obd, __u64 transno,
1552 CERROR("%s: transno "LPU64" commit error: %d\n",
1553 obd->obd_name, transno, error);
1556 if (transno > obd->obd_last_committed) {
1557 CDEBUG(D_HA, "%s: transno "LPD64" committed\n",
1558 obd->obd_name, transno);
1559 obd->obd_last_committed = transno;
1560 ptlrpc_commit_replies (obd);
1562 CDEBUG(D_INFO, "%s: transno "LPD64" committed\n",
1563 obd->obd_name, transno);
1567 static inline void init_obd_quota_ops(quota_interface_t *interface,
1568 struct obd_ops *obd_ops)
1574 obd_ops->o_quotacheck = QUOTA_OP(interface, check);
1575 obd_ops->o_quotactl = QUOTA_OP(interface, ctl);
1576 obd_ops->o_quota_adjust_qunit = QUOTA_OP(interface, adjust_qunit);
1579 static inline __u64 oinfo_mdsno(struct obd_info *oinfo)
1581 return obdo_mdsno(oinfo->oi_oa);
1584 static inline struct lustre_capa *oinfo_capa(struct obd_info *oinfo)
1586 return oinfo->oi_capa;
1589 #endif /* __OBD_H */