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 (c) 2007, 2010, Oracle and/or its affiliates. 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_target.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>
71 #include <libcfs/bitmap.h>
74 #define MAX_OBD_DEVICES 8192
76 /* this is really local to the OSC */
77 struct loi_oap_pages {
78 cfs_list_t lop_pending;
79 cfs_list_t lop_urgent;
80 cfs_list_t lop_pending_group;
90 struct lov_oinfo { /* per-stripe data structure */
91 struct ost_id loi_oi; /* object ID/Sequence on the target OST */
92 int loi_ost_idx; /* OST stripe index in lov_tgt_desc->tgts */
93 int loi_ost_gen; /* generation of this loi_ost_idx */
95 /* used by the osc to keep track of what objects to build into rpcs */
96 struct loi_oap_pages loi_read_lop;
97 struct loi_oap_pages loi_write_lop;
98 cfs_list_t loi_ready_item;
99 cfs_list_t loi_hp_ready_item;
100 cfs_list_t loi_write_item;
101 cfs_list_t loi_read_item;
103 unsigned long loi_kms_valid:1;
104 __u64 loi_kms; /* known minimum size */
105 struct ost_lvb loi_lvb;
106 struct osc_async_rc loi_ar;
108 #define loi_id loi_oi.oi_id
109 #define loi_seq loi_oi.oi_seq
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_ready_item);
126 CFS_INIT_LIST_HEAD(&loi->loi_hp_ready_item);
127 CFS_INIT_LIST_HEAD(&loi->loi_write_item);
128 CFS_INIT_LIST_HEAD(&loi->loi_read_item);
131 struct lov_stripe_md {
132 cfs_spinlock_t lsm_lock;
133 pid_t lsm_lock_owner; /* debugging */
136 /* Public members. */
137 __u64 lw_object_id; /* lov object id */
138 __u64 lw_object_seq; /* lov object seq */
139 __u64 lw_maxbytes; /* maximum possible file size */
141 /* LOV-private members start here -- only for use in lov/. */
143 __u32 lw_stripe_size; /* size of the stripe */
144 __u32 lw_pattern; /* striping pattern (RAID0, RAID1) */
145 unsigned lw_stripe_count; /* number of objects being striped over */
146 char lw_pool_name[LOV_MAXPOOLNAME]; /* pool name */
149 struct lov_oinfo *lsm_oinfo[0];
152 #define lsm_object_id lsm_wire.lw_object_id
153 #define lsm_object_seq lsm_wire.lw_object_seq
154 #define lsm_maxbytes lsm_wire.lw_maxbytes
155 #define lsm_magic lsm_wire.lw_magic
156 #define lsm_stripe_size lsm_wire.lw_stripe_size
157 #define lsm_pattern lsm_wire.lw_pattern
158 #define lsm_stripe_count lsm_wire.lw_stripe_count
159 #define lsm_pool_name lsm_wire.lw_pool_name
163 typedef int (*obd_enqueue_update_f)(void *cookie, int rc);
165 /* obd info for a particular level (lov, osc). */
167 /* Lock policy. It keeps an extent which is specific for a particular
168 * OSC. (e.g. lov_prep_enqueue_set initialises extent of the policy,
169 * and osc_enqueue passes it into ldlm_lock_match & ldlm_cli_enqueue. */
170 ldlm_policy_data_t oi_policy;
171 /* Flags used for set request specific flags:
172 - while lock handling, the flags obtained on the enqueue
173 request are set here.
174 - while stats, the flags used for control delay/resend.
177 /* Lock handle specific for every OSC lock. */
178 struct lustre_handle *oi_lockh;
179 /* lsm data specific for every OSC. */
180 struct lov_stripe_md *oi_md;
181 /* obdo data specific for every OSC, if needed at all. */
183 /* statfs data specific for every OSC, if needed at all. */
184 struct obd_statfs *oi_osfs;
185 /* An update callback which is called to update some data on upper
186 * level. E.g. it is used for update lsm->lsm_oinfo at every recieved
187 * request in osc level for enqueue requests. It is also possible to
188 * update some caller data from LOV layer if needed. */
189 obd_enqueue_update_f oi_cb_up;
190 /* oss capability, its type is obd_capa in client to avoid copy.
191 * in contrary its type is lustre_capa in OSS. */
195 /* compare all relevant fields. */
196 static inline int lov_stripe_md_cmp(struct lov_stripe_md *m1,
197 struct lov_stripe_md *m2)
200 * ->lsm_wire contains padding, but it should be zeroed out during
203 return memcmp(&m1->lsm_wire, &m2->lsm_wire, sizeof m1->lsm_wire);
206 void lov_stripe_lock(struct lov_stripe_md *md);
207 void lov_stripe_unlock(struct lov_stripe_md *md);
210 cfs_list_t typ_chain;
211 struct obd_ops *typ_dt_ops;
212 struct md_ops *typ_md_ops;
213 cfs_proc_dir_entry_t *typ_procroot;
216 struct lu_device_type *typ_lu;
217 cfs_spinlock_t obd_type_lock;
227 /* Individual type definitions */
229 struct ost_server_data;
231 #define OBT_MAGIC 0xBDDECEAE
232 /* hold common fields for "target" device */
233 struct obd_device_target {
235 struct super_block *obt_sb;
236 /** last_rcvd file */
237 struct file *obt_rcvd_filp;
238 struct lu_target *obt_lut;
239 __u64 obt_mount_count;
240 cfs_semaphore_t obt_quotachecking;
241 struct lustre_quota_ctxt obt_qctxt;
242 lustre_quota_version_t obt_qfmt;
243 cfs_rw_semaphore_t obt_rwsem;
244 struct vfsmount *obt_vfsmnt;
245 struct file *obt_health_check_filp;
250 LLOG_CONFIG_ORIG_CTXT = 0,
251 LLOG_CONFIG_REPL_CTXT,
252 LLOG_MDS_OST_ORIG_CTXT,
253 LLOG_MDS_OST_REPL_CTXT,
260 LLOG_LOVEA_ORIG_CTXT,
261 LLOG_LOVEA_REPL_CTXT,
262 LLOG_CHANGELOG_ORIG_CTXT, /**< changelog generation on mdd */
263 LLOG_CHANGELOG_REPL_CTXT, /**< changelog access on clients */
264 LLOG_CHANGELOG_USER_ORIG_CTXT, /**< for multiple changelog consumers */
268 #define FILTER_SUBDIR_COUNT 32 /* set to zero for no subdirs */
270 struct filter_subdirs {
271 cfs_dentry_t *dentry[FILTER_SUBDIR_COUNT];
281 /* NB this field MUST be first */
282 struct obd_device_target fo_obt;
283 const char *fo_fstype;
286 cfs_dentry_t *fo_dentry_O;
287 cfs_dentry_t **fo_dentry_O_groups;
288 struct filter_subdirs *fo_dentry_O_sub;
289 cfs_semaphore_t fo_init_lock; /* group initialization lock */
290 int fo_committed_group;
292 cfs_spinlock_t fo_objidlock; /* protect fo_lastobjid */
294 unsigned long fo_destroys_in_progress;
295 cfs_semaphore_t fo_create_locks[FILTER_SUBDIR_COUNT];
297 cfs_list_t fo_export_list;
300 obd_size fo_tot_dirty; /* protected by obd_osfs_lock */
301 obd_size fo_tot_granted; /* all values in bytes */
302 obd_size fo_tot_pending;
303 int fo_tot_granted_clients;
305 obd_size fo_readcache_max_filesize;
306 int fo_read_cache:1, /**< enable read-only cache */
307 fo_writethrough_cache:1,/**< read cache writes */
308 fo_mds_ost_sync:1, /**< MDS-OST orphan recovery*/
309 fo_raid_degraded:1;/**< RAID device degraded */
311 struct obd_import *fo_mdc_imp;
312 struct obd_uuid fo_mdc_uuid;
313 struct lustre_handle fo_mdc_conn;
314 struct file **fo_last_objid_files;
315 __u64 *fo_last_objids; /* last created objid for groups,
316 * protected by fo_objidlock */
318 cfs_semaphore_t fo_alloc_lock;
320 cfs_atomic_t fo_r_in_flight;
321 cfs_atomic_t fo_w_in_flight;
324 * per-filter pool of kiobuf's allocated by filter_common_setup() and
325 * torn down by filter_cleanup(). Contains OST_NUM_THREADS elements of
326 * which ->fo_iobuf_count were allocated.
328 * This pool contains kiobuf used by
329 * filter_{prep,commit}rw_{read,write}() and is shared by all OST
332 * Locking: none, each OST thread uses only one element, determined by
333 * its "ordinal number", ->t_id.
335 struct filter_iobuf **fo_iobuf_pool;
338 cfs_list_t fo_llog_list;
339 cfs_spinlock_t fo_llog_list_lock;
341 struct brw_stats fo_filter_stats;
342 struct lustre_quota_ctxt fo_quota_ctxt;
343 cfs_spinlock_t fo_quotacheck_lock;
344 cfs_atomic_t fo_quotachecking;
346 int fo_fmd_max_num; /* per exp filter_mod_data */
347 int fo_fmd_max_age; /* jiffies to fmd expiry */
350 cfs_rwlock_t fo_sptlrpc_lock;
351 struct sptlrpc_rule_set fo_sptlrpc_rset;
353 /* capability related */
354 unsigned int fo_fl_oss_capa;
355 cfs_list_t fo_capa_keys;
356 cfs_hlist_head_t *fo_capa_hash;
357 struct llog_commit_master *fo_lcm;
361 struct timeout_item {
362 enum timeout_event ti_event;
363 cfs_time_t ti_timeout;
366 cfs_list_t ti_obd_list;
370 #define OSC_MAX_RIF_DEFAULT 8
371 #define OSC_MAX_RIF_MAX 256
372 #define OSC_MAX_DIRTY_DEFAULT (OSC_MAX_RIF_DEFAULT * 4)
373 #define OSC_MAX_DIRTY_MB_MAX 2048 /* arbitrary, but < MAX_LONG bytes */
374 #define OSC_DEFAULT_RESENDS 10
376 #define MDC_MAX_RIF_DEFAULT 8
377 #define MDC_MAX_RIF_MAX 512
382 cfs_rw_semaphore_t cl_sem;
383 struct obd_uuid cl_target_uuid;
384 struct obd_import *cl_import; /* ptlrpc connection state */
386 /* max_mds_easize is purely a performance thing so we don't have to
387 * call obd_size_diskmd() all the time. */
388 int cl_default_mds_easize;
389 int cl_max_mds_easize;
390 int cl_max_mds_cookiesize;
392 enum lustre_sec_part cl_sp_me;
393 enum lustre_sec_part cl_sp_to;
394 struct sptlrpc_flavor cl_flvr_mgc; /* fixed flavor of mgc->mgs */
396 //struct llog_canceld_ctxt *cl_llcd; /* it's included by obd_llog_ctxt */
397 void *cl_llcd_offset;
399 /* the grant values are protected by loi_list_lock below */
400 long cl_dirty; /* all _dirty_ in bytes */
401 long cl_dirty_max; /* allowed w/o rpc */
402 long cl_dirty_transit; /* dirty synchronous */
403 long cl_avail_grant; /* bytes of credit for ost */
404 long cl_lost_grant; /* lost credits (trunc) */
405 cfs_list_t cl_cache_waiters; /* waiting for cache/grant */
406 cfs_time_t cl_next_shrink_grant; /* jiffies */
407 cfs_list_t cl_grant_shrink_list; /* Timeout event list */
408 cfs_semaphore_t cl_grant_sem; /*grant shrink list cfs_semaphore*/
409 int cl_grant_shrink_interval; /* seconds */
411 /* keep track of objects that have lois that contain pages which
412 * have been queued for async brw. this lock also protects the
413 * lists of osc_client_pages that hang off of the loi */
415 * ->cl_loi_list_lock protects consistency of
416 * ->cl_loi_{ready,read,write}_list. ->ap_make_ready() and
417 * ->ap_completion() call-backs are executed under this lock. As we
418 * cannot guarantee that these call-backs never block on all platforms
419 * (as a matter of fact they do block on Mac OS X), type of
420 * ->cl_loi_list_lock is platform dependent: it's a spin-lock on Linux
421 * and blocking mutex on Mac OS X. (Alternative is to make this lock
422 * blocking everywhere, but we don't want to slow down fast-path of
423 * our main platform.)
425 * Exact type of ->cl_loi_list_lock is defined in arch/obd.h together
426 * with client_obd_list_{un,}lock() and
427 * client_obd_list_lock_{init,done}() functions.
429 client_obd_lock_t cl_loi_list_lock;
430 cfs_list_t cl_loi_ready_list;
431 cfs_list_t cl_loi_hp_ready_list;
432 cfs_list_t cl_loi_write_list;
433 cfs_list_t cl_loi_read_list;
436 /* just a sum of the loi/lop pending numbers to be exported by /proc */
437 int cl_pending_w_pages;
438 int cl_pending_r_pages;
439 int cl_max_pages_per_rpc;
440 int cl_max_rpcs_in_flight;
441 struct obd_histogram cl_read_rpc_hist;
442 struct obd_histogram cl_write_rpc_hist;
443 struct obd_histogram cl_read_page_hist;
444 struct obd_histogram cl_write_page_hist;
445 struct obd_histogram cl_read_offset_hist;
446 struct obd_histogram cl_write_offset_hist;
448 /* number of in flight destroy rpcs is limited to max_rpcs_in_flight */
449 cfs_atomic_t cl_destroy_in_flight;
450 cfs_waitq_t cl_destroy_waitq;
452 struct mdc_rpc_lock *cl_rpc_lock;
453 struct mdc_rpc_lock *cl_setattr_lock;
454 struct mdc_rpc_lock *cl_close_lock;
455 struct osc_creator cl_oscc;
458 cfs_semaphore_t cl_mgc_sem;
459 struct vfsmount *cl_mgc_vfsmnt;
460 struct dentry *cl_mgc_configs_dir;
461 cfs_atomic_t cl_mgc_refcount;
462 struct obd_export *cl_mgc_mgsexp;
464 /* checksumming for data sent over the network */
465 unsigned int cl_checksum:1; /* 0 = disabled, 1 = enabled */
466 /* supported checksum types that are worked out at connect time */
467 __u32 cl_supp_cksum_types;
468 /* checksum algorithm to be used */
469 cksum_type_t cl_cksum_type;
471 /* also protected by the poorly named _loi_list_lock lock above */
472 struct osc_async_rc cl_ar;
474 /* used by quotacheck */
475 int cl_qchk_stat; /* quotacheck stat of the peer */
477 /* sequence manager */
478 struct lu_client_seq *cl_seq;
480 cfs_atomic_t cl_resends; /* resend count */
482 #define obd2cli_tgt(obd) ((char *)(obd)->u.cli.cl_target_uuid.uuid)
484 #define CL_NOT_QUOTACHECKED 1 /* client->cl_qchk_stat init value */
487 struct ptlrpc_service *mgs_service;
488 struct vfsmount *mgs_vfsmnt;
489 struct super_block *mgs_sb;
490 struct dentry *mgs_configs_dir;
491 struct dentry *mgs_fid_de;
492 cfs_list_t mgs_fs_db_list;
493 cfs_semaphore_t mgs_sem;
494 cfs_proc_dir_entry_t *mgs_proc_live;
498 /* NB this field MUST be first */
499 struct obd_device_target mds_obt;
500 struct ptlrpc_service *mds_service;
501 struct ptlrpc_service *mds_setattr_service;
502 struct ptlrpc_service *mds_readpage_service;
503 cfs_dentry_t *mds_fid_de;
505 int mds_max_cookiesize;
507 unsigned long mds_atime_diff;
508 cfs_semaphore_t mds_epoch_sem;
509 struct ll_fid mds_rootfid;
510 cfs_dentry_t *mds_pending_dir;
511 cfs_dentry_t *mds_logs_dir;
512 cfs_dentry_t *mds_objects_dir;
513 struct llog_handle *mds_cfg_llh;
514 struct obd_device *mds_lov_obd;
515 struct obd_uuid mds_lov_uuid;
517 struct obd_export *mds_lov_exp;
518 struct lov_desc mds_lov_desc;
521 /* mark pages dirty for write. */
522 cfs_bitmap_t *mds_lov_page_dirty;
523 /* array for store pages with obd_id */
524 void **mds_lov_page_array;
525 /* file for store objid */
526 struct file *mds_lov_objid_filp;
527 __u32 mds_lov_objid_count;
528 __u32 mds_lov_objid_max_index;
529 __u32 mds_lov_objid_lastpage;
530 __u32 mds_lov_objid_lastidx;
533 struct lustre_quota_info mds_quota_info;
534 cfs_rw_semaphore_t mds_qonoff_sem;
535 cfs_semaphore_t mds_health_sem;
536 unsigned long mds_fl_user_xattr:1,
538 mds_evict_ost_nids:1,
542 mds_fl_target:1; /* mds have one or
545 struct upcall_cache *mds_identity_cache;
547 /* for capability keys update */
548 struct lustre_capa_key *mds_capa_keys;
549 cfs_rw_semaphore_t mds_notify_lock;
553 extern __u32 mds_max_ost_index;
555 #define MDS_LOV_ALLOC_SIZE (CFS_PAGE_SIZE)
557 #define OBJID_PER_PAGE() (MDS_LOV_ALLOC_SIZE / sizeof(obd_id))
559 #define MDS_LOV_OBJID_PAGES_COUNT (mds_max_ost_index/OBJID_PER_PAGE())
561 extern int mds_lov_init_objids(struct obd_device *obd);
562 extern void mds_lov_destroy_objids(struct obd_device *obd);
573 cfs_spinlock_t eo_lock;
575 struct lustre_handle eo_nl_lock;
576 cfs_atomic_t eo_prep;
580 struct ptlrpc_service *ost_service;
581 struct ptlrpc_service *ost_create_service;
582 struct ptlrpc_service *ost_io_service;
583 cfs_semaphore_t ost_health_sem;
586 struct echo_client_obd {
587 struct obd_export *ec_exp; /* the local connection to osc/lov */
588 cfs_spinlock_t ec_lock;
589 cfs_list_t ec_objects;
596 struct obd_uuid lqo_uuid; /* ptlrpc's c_remote_uuid */
597 cfs_list_t lqo_oss_list; /* link to lov_qos */
598 __u64 lqo_bavail; /* total bytes avail on OSS */
599 __u64 lqo_penalty; /* current penalty */
600 __u64 lqo_penalty_per_obj;/* penalty decrease every obj*/
601 time_t lqo_used; /* last used time, seconds */
602 __u32 lqo_ost_count; /* number of osts on this oss */
606 struct lov_qos_oss *ltq_oss; /* oss info */
607 __u64 ltq_penalty; /* current penalty */
608 __u64 ltq_penalty_per_obj; /* penalty decrease every obj*/
609 __u64 ltq_weight; /* net weighting */
610 time_t ltq_used; /* last used time, seconds */
611 unsigned int ltq_usable:1; /* usable for striping */
614 /* Generic subset of OSTs */
616 __u32 *op_array; /* array of index of
618 unsigned int op_count; /* number of OSTs in the array */
619 unsigned int op_size; /* allocated size of lp_array */
620 cfs_rw_semaphore_t op_rw_sem; /* to protect ost_pool use */
623 /* Round-robin allocator data */
625 __u32 lqr_start_idx; /* start index of new inode */
626 __u32 lqr_offset_idx; /* aliasing for start_idx */
627 int lqr_start_count; /* reseed counter */
628 struct ost_pool lqr_pool; /* round-robin optimized list */
629 unsigned long lqr_dirty:1; /* recalc round-robin list */
632 /* allow statfs data caching for 1 second */
633 #define OBD_STATFS_CACHE_SECONDS 1
635 struct lov_statfs_data {
636 struct obd_info lsd_oi;
637 struct obd_statfs lsd_statfs;
639 /* Stripe placement optimization */
641 cfs_list_t lq_oss_list; /* list of OSSs that targets use */
642 cfs_rw_semaphore_t 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 */
651 lq_statfs_in_progress:1; /* statfs op in
653 /* qos statfs data */
654 struct lov_statfs_data *lq_statfs_data;
655 cfs_waitq_t lq_statfs_waitq; /* waitqueue to notify statfs
656 * requests completion */
659 struct lov_tgt_desc {
661 struct obd_uuid ltd_uuid;
662 struct obd_device *ltd_obd;
663 struct obd_export *ltd_exp;
664 struct ltd_qos ltd_qos; /* qos info per target */
666 __u32 ltd_index; /* index in lov_obd->tgts */
667 unsigned long ltd_active:1,/* is this target up for requests */
668 ltd_activate:1,/* should target be activated */
669 ltd_reap:1; /* should this target be deleted */
673 #define pool_tgt_size(_p) _p->pool_obds.op_size
674 #define pool_tgt_count(_p) _p->pool_obds.op_count
675 #define pool_tgt_array(_p) _p->pool_obds.op_array
676 #define pool_tgt_rw_sem(_p) _p->pool_obds.op_rw_sem
677 #define pool_tgt(_p, _i) _p->pool_lov->lov_tgts[_p->pool_obds.op_array[_i]]
680 char pool_name[LOV_MAXPOOLNAME + 1]; /* name of pool */
681 struct ost_pool pool_obds; /* pool members */
682 cfs_atomic_t pool_refcount; /* pool ref. counter */
683 struct lov_qos_rr pool_rr; /* round robin qos */
684 cfs_hlist_node_t pool_hash; /* access by poolname */
685 cfs_list_t pool_list; /* serial access */
686 cfs_proc_dir_entry_t *pool_proc_entry; /* file in /proc */
687 struct lov_obd *pool_lov; /* lov obd to which this
692 struct lov_desc desc;
693 struct lov_tgt_desc **lov_tgts; /* sparse array */
694 struct ost_pool lov_packed; /* all OSTs in a packed
696 cfs_semaphore_t lov_lock;
697 struct obd_connect_data lov_ocd;
698 struct lov_qos lov_qos; /* qos info per lov */
699 cfs_atomic_t lov_refcount;
700 __u32 lov_tgt_count; /* how many OBD's */
701 __u32 lov_active_tgt_count; /* how many active */
702 __u32 lov_death_row;/* tgts scheduled to be deleted */
703 __u32 lov_tgt_size; /* size of tgts array */
706 cfs_hash_t *lov_pools_hash_body; /* used for key access */
707 cfs_list_t lov_pool_list; /* used for sequential access */
708 cfs_proc_dir_entry_t *lov_pool_proc_entry;
709 enum lustre_sec_part lov_sp_me;
712 struct lmv_tgt_desc {
713 struct obd_uuid ltd_uuid;
714 struct obd_export *ltd_exp;
715 int ltd_active; /* is this target up for requests */
717 cfs_semaphore_t ltd_fid_sem;
720 enum placement_policy {
721 PLACEMENT_CHAR_POLICY = 0,
722 PLACEMENT_NID_POLICY = 1,
723 PLACEMENT_INVAL_POLICY = 2,
727 typedef enum placement_policy placement_policy_t;
731 struct lu_client_fld lmv_fld;
732 cfs_spinlock_t lmv_lock;
733 placement_policy_t lmv_placement;
734 struct lmv_desc desc;
735 struct obd_uuid cluuid;
736 struct obd_export *exp;
743 cfs_semaphore_t init_sem;
745 struct lmv_tgt_desc *tgts;
748 struct obd_connect_data *datas;
751 struct obd_connect_data conn_data;
754 struct niobuf_local {
759 cfs_dentry_t *dentry;
764 #define LUSTRE_FLD_NAME "fld"
765 #define LUSTRE_SEQ_NAME "seq"
767 #define LUSTRE_CMM_NAME "cmm"
768 #define LUSTRE_MDD_NAME "mdd"
769 #define LUSTRE_OSD_NAME "osd-ldiskfs"
770 #define LUSTRE_VVP_NAME "vvp"
771 #define LUSTRE_LMV_NAME "lmv"
772 #define LUSTRE_CMM_MDC_NAME "cmm-mdc"
773 #define LUSTRE_SLP_NAME "slp"
775 /* obd device type names */
776 /* FIXME all the references to LUSTRE_MDS_NAME should be swapped with LUSTRE_MDT_NAME */
777 #define LUSTRE_MDS_NAME "mds"
778 #define LUSTRE_MDT_NAME "mdt"
779 #define LUSTRE_MDC_NAME "mdc"
780 #define LUSTRE_OSS_NAME "ost" /* FIXME change name to oss */
781 #define LUSTRE_OST_NAME "obdfilter" /* FIXME change name to ost */
782 #define LUSTRE_OSC_NAME "osc"
783 #define LUSTRE_LOV_NAME "lov"
784 #define LUSTRE_MGS_NAME "mgs"
785 #define LUSTRE_MGC_NAME "mgc"
787 #define LUSTRE_CACHEOBD_NAME "cobd"
788 #define LUSTRE_ECHO_NAME "obdecho"
789 #define LUSTRE_ECHO_CLIENT_NAME "echo_client"
791 /* Constant obd names (post-rename) */
792 #define LUSTRE_MDS_OBDNAME "MDS"
793 #define LUSTRE_OSS_OBDNAME "OSS"
794 #define LUSTRE_MGS_OBDNAME "MGS"
795 #define LUSTRE_MGC_OBDNAME "MGC"
797 /* Don't conflict with on-wire flags OBD_BRW_WRITE, etc */
798 #define N_LOCAL_TEMP_PAGE 0x10000000
800 struct obd_trans_info {
803 /* Only used on the server side for tracking acks. */
804 struct oti_req_ack_lock {
805 struct lustre_handle lock;
809 struct llog_cookie oti_onecookie;
810 struct llog_cookie *oti_logcookies;
813 /* initial thread handling transaction */
814 struct ptlrpc_thread * oti_thread;
817 __u64 oti_pre_version;
819 struct obd_uuid *oti_ost_uuid;
822 static inline void oti_init(struct obd_trans_info *oti,
823 struct ptlrpc_request *req)
827 memset(oti, 0, sizeof(*oti));
832 oti->oti_xid = req->rq_xid;
833 /** VBR: take versions from request */
834 if (req->rq_reqmsg != NULL &&
835 lustre_msg_get_flags(req->rq_reqmsg) & MSG_REPLAY) {
836 __u64 *pre_version = lustre_msg_get_versions(req->rq_reqmsg);
837 oti->oti_pre_version = pre_version ? pre_version[0] : 0;
838 oti->oti_transno = lustre_msg_get_transno(req->rq_reqmsg);
841 /** called from mds_create_objects */
842 if (req->rq_repmsg != NULL)
843 oti->oti_transno = lustre_msg_get_transno(req->rq_repmsg);
844 oti->oti_thread = req->rq_svc_thread;
845 if (req->rq_reqmsg != NULL)
846 oti->oti_conn_cnt = lustre_msg_get_conn_cnt(req->rq_reqmsg);
849 static inline void oti_alloc_cookies(struct obd_trans_info *oti,int num_cookies)
854 if (num_cookies == 1)
855 oti->oti_logcookies = &oti->oti_onecookie;
857 OBD_ALLOC(oti->oti_logcookies,
858 num_cookies * sizeof(oti->oti_onecookie));
860 oti->oti_numcookies = num_cookies;
863 static inline void oti_free_cookies(struct obd_trans_info *oti)
865 if (!oti || !oti->oti_logcookies)
868 if (oti->oti_logcookies == &oti->oti_onecookie)
869 LASSERT(oti->oti_numcookies == 1);
871 OBD_FREE(oti->oti_logcookies,
872 oti->oti_numcookies * sizeof(oti->oti_onecookie));
873 oti->oti_logcookies = NULL;
874 oti->oti_numcookies = 0;
878 * Events signalled through obd_notify() upcall-chain.
880 enum obd_notify_event {
881 /* Device connect start */
883 /* Device activated */
885 /* Device deactivated */
887 /* Device disconnected */
889 /* Connect data for import were changed */
892 OBD_NOTIFY_SYNC_NONBLOCK,
894 /* Configuration event */
896 /* Trigger quota recovery */
900 /* bit-mask flags for config events */
902 CONFIG_LOG = 0x1, /* finished processing config log */
903 CONFIG_SYNC = 0x2, /* mdt synced 1 ost */
904 CONFIG_TARGET = 0x4 /* one target is added */
908 * Data structure used to pass obd_notify()-event to non-obd listeners (llite
909 * and liblustre being main examples).
911 struct obd_notify_upcall {
912 int (*onu_upcall)(struct obd_device *host, struct obd_device *watched,
913 enum obd_notify_event ev, void *owner, void *data);
914 /* Opaque datum supplied by upper layer listener */
918 struct target_recovery_data {
919 svc_handler_t trd_recovery_handler;
920 pid_t trd_processing_task;
921 cfs_completion_t trd_starting;
922 cfs_completion_t trd_finishing;
926 * In HEAD for CMD, the object is created in group number which is 3>=
927 * or indexing starts from 3. To test this assertions are added to disallow
928 * group 0. But to run 2.0 mds server on 1.8.x disk format (i.e. interop_mode)
929 * object in group 0 needs to be allowed.
930 * So for interop mode following changes needs to be done:
931 * 1. No need to assert on group 0 or allow group 0
932 * 2. The group number indexing starts from 0 instead of 3
935 #define LASSERT_SEQ_IS_MDT(seq) LASSERT(fid_seq_is_mdt(seq))
937 static inline __u64 objseq_to_mdsno(obd_seq seq)
939 LASSERT_SEQ_IS_MDT(seq);
940 if (seq == FID_SEQ_OST_MDT0)
942 return seq - FID_SEQ_OST_MDT1 + 1;
945 static inline int mdt_to_obd_objseq(int mdtid)
948 * MDS0 uses seq 0 pre FID-on-OST, other MDSes will use seq from
952 return FID_SEQ_OST_MDT1 + mdtid - 1;
956 struct obd_llog_group {
959 struct llog_ctxt *olg_ctxts[LLOG_MAX_CTXTS];
960 cfs_waitq_t olg_waitq;
961 cfs_spinlock_t olg_lock;
962 struct obd_export *olg_exp;
963 int olg_initializing;
964 cfs_semaphore_t olg_cat_processing;
967 /* corresponds to one of the obd's */
968 #define MAX_OBD_NAME 128
969 #define OBD_DEVICE_MAGIC 0XAB5CD6EF
970 #define OBD_DEV_BY_DEVNAME 0xffffd0de
972 struct obd_type *obd_type;
975 /* common and UUID name of this device */
976 char obd_name[MAX_OBD_NAME];
977 struct obd_uuid obd_uuid;
979 struct lu_device *obd_lu_dev;
982 unsigned long obd_attached:1, /* finished attach */
983 obd_set_up:1, /* finished setup */
984 obd_recovering:1, /* there are recoverable clients */
985 obd_abort_recovery:1,/* recovery expired */
986 obd_version_recov:1, /* obd uses version checking */
987 obd_recovery_expired:1,
988 obd_replayable:1, /* recovery is enabled; inform clients */
989 obd_no_transno:1, /* no committed-transno notification */
990 obd_no_recov:1, /* fail instead of retry messages */
991 obd_req_replaying:1, /* replaying requests */
992 obd_stopping:1, /* started cleanup */
993 obd_starting:1, /* started setup */
994 obd_force:1, /* cleanup with > 0 obd refcount */
995 obd_fail:1, /* cleanup with failover */
996 obd_async_recov:1, /* allow asynchronous orphan cleanup */
997 obd_no_conn:1, /* deny new connections */
998 obd_inactive:1, /* device active/inactive
999 * (for /proc/status only!!) */
1000 obd_process_conf:1; /* device is processing mgs config */
1001 /* uuid-export hash body */
1002 cfs_hash_t *obd_uuid_hash;
1003 /* nid-export hash body */
1004 cfs_hash_t *obd_nid_hash;
1005 /* nid stats body */
1006 cfs_hash_t *obd_nid_stats_hash;
1007 cfs_list_t obd_nid_stats;
1008 cfs_atomic_t obd_refcount;
1009 cfs_waitq_t obd_refcount_waitq;
1010 cfs_list_t obd_exports;
1011 cfs_list_t obd_unlinked_exports;
1012 cfs_list_t obd_delayed_exports;
1013 int obd_num_exports;
1014 cfs_spinlock_t obd_nid_lock;
1015 struct ldlm_namespace *obd_namespace;
1016 struct ptlrpc_client obd_ldlm_client; /* XXX OST/MDS only */
1017 /* a spinlock is OK for what we do now, may need a semaphore later */
1018 cfs_spinlock_t obd_dev_lock;
1019 cfs_semaphore_t obd_dev_sem;
1020 __u64 obd_last_committed;
1021 struct fsfilt_operations *obd_fsops;
1022 cfs_spinlock_t obd_osfs_lock;
1023 struct obd_statfs obd_osfs; /* locked by obd_osfs_lock */
1025 struct lvfs_run_ctxt obd_lvfs_ctxt;
1026 struct obd_llog_group obd_olg; /* default llog group */
1027 struct obd_device *obd_observer;
1028 cfs_rw_semaphore_t obd_observer_link_sem;
1029 struct obd_notify_upcall obd_upcall;
1030 struct obd_export *obd_self_export;
1031 /* list of exports in LRU order, for ping evictor, with obd_dev_lock */
1032 cfs_list_t obd_exports_timed;
1033 time_t obd_eviction_timer; /* for ping evictor */
1035 int obd_max_recoverable_clients;
1036 int obd_connected_clients;
1037 int obd_stale_clients;
1038 int obd_delayed_clients;
1039 cfs_spinlock_t obd_processing_task_lock; /* BH lock (timer) */
1040 __u64 obd_next_recovery_transno;
1041 int obd_replayed_requests;
1042 int obd_requests_queued_for_recovery;
1043 cfs_waitq_t obd_next_transno_waitq;
1044 cfs_timer_t obd_recovery_timer;
1045 time_t obd_recovery_start; /* seconds */
1046 time_t obd_recovery_end; /* seconds, for lprocfs_status */
1047 time_t obd_recovery_time_hard;
1048 int obd_recovery_timeout;
1050 /* new recovery stuff from CMD2 */
1051 struct target_recovery_data obd_recovery_data;
1052 int obd_replayed_locks;
1053 cfs_atomic_t obd_req_replay_clients;
1054 cfs_atomic_t obd_lock_replay_clients;
1055 cfs_list_t obd_req_replay_queue;
1056 cfs_list_t obd_lock_replay_queue;
1057 cfs_list_t obd_final_req_queue;
1058 int obd_recovery_stage;
1061 struct obd_device_target obt;
1062 struct filter_obd filter;
1064 struct client_obd cli;
1066 struct echo_client_obd echo_client;
1067 struct echo_obd echo;
1072 /* Fields used by LProcFS */
1073 unsigned int obd_cntr_base;
1074 struct lprocfs_stats *obd_stats;
1076 unsigned int md_cntr_base;
1077 struct lprocfs_stats *md_stats;
1079 cfs_proc_dir_entry_t *obd_proc_entry;
1080 cfs_proc_dir_entry_t *obd_proc_exports_entry;
1081 cfs_proc_dir_entry_t *obd_svc_procroot;
1082 struct lprocfs_stats *obd_svc_stats;
1083 cfs_atomic_t obd_evict_inprogress;
1084 cfs_waitq_t obd_evict_inprogress_waitq;
1085 cfs_list_t obd_evict_list; /* protected with pet_lock */
1088 * Ldlm pool part. Save last calculated SLV and Limit.
1090 cfs_rwlock_t obd_pool_lock;
1095 * A list of outstanding class_incref()'s against this obd. For
1098 struct lu_ref obd_reference;
1101 #define OBD_LLOG_FL_SENDNOW 0x0001
1103 enum obd_cleanup_stage {
1104 /* Special case hack for MDS LOVs */
1106 /* can be directly mapped to .ldto_device_fini() */
1107 OBD_CLEANUP_EXPORTS,
1110 /* get/set_info keys */
1111 #define KEY_ASYNC "async"
1112 #define KEY_BLOCKSIZE_BITS "blocksize_bits"
1113 #define KEY_BLOCKSIZE "blocksize"
1114 #define KEY_CAPA_KEY "capa_key"
1115 #define KEY_CHANGELOG_CLEAR "changelog_clear"
1116 #define KEY_FID2PATH "fid2path"
1117 #define KEY_CHECKSUM "checksum"
1118 #define KEY_CLEAR_FS "clear_fs"
1119 #define KEY_CONN_DATA "conn_data"
1120 #define KEY_EVICT_BY_NID "evict_by_nid"
1121 #define KEY_FIEMAP "fiemap"
1122 #define KEY_FLUSH_CTX "flush_ctx"
1123 #define KEY_GRANT_SHRINK "grant_shrink"
1124 #define KEY_HSM_COPYTOOL_SEND "hsm_send"
1125 #define KEY_INIT_RECOV_BACKUP "init_recov_bk"
1126 #define KEY_INIT_RECOV "initial_recov"
1127 #define KEY_INTERMDS "inter_mds"
1128 #define KEY_LAST_ID "last_id"
1129 #define KEY_LOCK_TO_STRIPE "lock_to_stripe"
1130 #define KEY_LOVDESC "lovdesc"
1131 #define KEY_LOV_IDX "lov_idx"
1132 #define KEY_MAX_EASIZE "max_easize"
1133 #define KEY_MDS_CONN "mds_conn"
1134 #define KEY_MGSSEC "mgssec"
1135 #define KEY_NEXT_ID "next_id"
1136 #define KEY_READ_ONLY "read-only"
1137 #define KEY_REGISTER_TARGET "register_target"
1138 #define KEY_REVIMP_UPD "revimp_update"
1139 #define KEY_SET_FS "set_fs"
1140 /* KEY_SET_INFO in lustre_idl.h */
1141 #define KEY_SPTLRPC_CONF "sptlrpc_conf"
1142 #define KEY_CONNECT_FLAG "connect_flags"
1147 static inline int it_to_lock_mode(struct lookup_intent *it)
1149 /* CREAT needs to be tested before open (both could be set) */
1150 if (it->it_op & IT_CREAT)
1152 else if (it->it_op & (IT_READDIR | IT_GETATTR | IT_OPEN | IT_LOOKUP))
1155 LASSERTF(0, "Invalid it_op: %d\n", it->it_op);
1160 struct lu_fid op_fid1; /* operation fid1 (usualy parent) */
1161 struct lu_fid op_fid2; /* operation fid2 (usualy child) */
1162 struct lu_fid op_fid3; /* 2 extra fids to find conflicting */
1163 struct lu_fid op_fid4; /* to the operation locks. */
1164 mdsno_t op_mds; /* what mds server open will go to */
1165 struct lustre_handle op_handle;
1167 const char *op_name;
1170 struct lmv_stripe_md *op_mea1;
1171 struct lmv_stripe_md *op_mea2;
1172 __u32 op_suppgids[2];
1178 /* iattr fields and blocks. */
1179 struct iattr op_attr;
1181 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,14)
1182 unsigned int op_attr_flags;
1186 loff_t op_attr_blocks;
1188 /* Size-on-MDS epoch and flags. */
1193 struct obd_capa *op_capa1;
1194 struct obd_capa *op_capa2;
1196 /* Various operation flags. */
1199 /* Operation type */
1203 struct md_enqueue_info;
1204 /* metadata stat-ahead */
1205 typedef int (* md_enqueue_cb_t)(struct ptlrpc_request *req,
1206 struct md_enqueue_info *minfo,
1209 struct md_enqueue_info {
1210 struct md_op_data mi_data;
1211 struct lookup_intent mi_it;
1212 struct lustre_handle mi_lockh;
1213 struct dentry *mi_dentry;
1214 struct inode *mi_dir;
1215 md_enqueue_cb_t mi_cb;
1216 unsigned int mi_generation;
1221 cfs_module_t *o_owner;
1222 int (*o_iocontrol)(unsigned int cmd, struct obd_export *exp, int len,
1223 void *karg, void *uarg);
1224 int (*o_get_info)(struct obd_export *, __u32 keylen, void *key,
1225 __u32 *vallen, void *val, struct lov_stripe_md *lsm);
1226 int (*o_set_info_async)(struct obd_export *, __u32 keylen, void *key,
1227 __u32 vallen, void *val,
1228 struct ptlrpc_request_set *set);
1229 int (*o_attach)(struct obd_device *dev, obd_count len, void *data);
1230 int (*o_detach)(struct obd_device *dev);
1231 int (*o_setup) (struct obd_device *dev, struct lustre_cfg *cfg);
1232 int (*o_precleanup)(struct obd_device *dev,
1233 enum obd_cleanup_stage cleanup_stage);
1234 int (*o_cleanup)(struct obd_device *dev);
1235 int (*o_process_config)(struct obd_device *dev, obd_count len,
1237 int (*o_postrecov)(struct obd_device *dev);
1238 int (*o_add_conn)(struct obd_import *imp, struct obd_uuid *uuid,
1240 int (*o_del_conn)(struct obd_import *imp, struct obd_uuid *uuid);
1241 /* connect to the target device with given connection
1242 * data. @ocd->ocd_connect_flags is modified to reflect flags actually
1243 * granted by the target, which are guaranteed to be a subset of flags
1244 * asked for. If @ocd == NULL, use default parameters. */
1245 int (*o_connect)(const struct lu_env *env,
1246 struct obd_export **exp, struct obd_device *src,
1247 struct obd_uuid *cluuid, struct obd_connect_data *ocd,
1249 int (*o_reconnect)(const struct lu_env *env,
1250 struct obd_export *exp, struct obd_device *src,
1251 struct obd_uuid *cluuid,
1252 struct obd_connect_data *ocd,
1254 int (*o_disconnect)(struct obd_export *exp);
1256 /* Initialize/finalize fids infrastructure. */
1257 int (*o_fid_init)(struct obd_export *exp);
1258 int (*o_fid_fini)(struct obd_export *exp);
1260 /* Allocate new fid according to passed @hint. */
1261 int (*o_fid_alloc)(struct obd_export *exp, struct lu_fid *fid,
1262 struct md_op_data *op_data);
1265 * Object with @fid is getting deleted, we may want to do something
1268 int (*o_fid_delete)(struct obd_export *exp, const struct lu_fid *fid);
1270 int (*o_statfs)(struct obd_device *obd, struct obd_statfs *osfs,
1271 __u64 max_age, __u32 flags);
1272 int (*o_statfs_async)(struct obd_device *obd, struct obd_info *oinfo,
1273 __u64 max_age, struct ptlrpc_request_set *set);
1274 int (*o_packmd)(struct obd_export *exp, struct lov_mds_md **disk_tgt,
1275 struct lov_stripe_md *mem_src);
1276 int (*o_unpackmd)(struct obd_export *exp,struct lov_stripe_md **mem_tgt,
1277 struct lov_mds_md *disk_src, int disk_len);
1278 int (*o_preallocate)(struct lustre_handle *, obd_count *req,
1280 /* FIXME: add fid capability support for create & destroy! */
1281 int (*o_precreate)(struct obd_export *exp);
1282 int (*o_create)(struct obd_export *exp, struct obdo *oa,
1283 struct lov_stripe_md **ea, struct obd_trans_info *oti);
1284 int (*o_create_async)(struct obd_export *exp, struct obd_info *oinfo,
1285 struct lov_stripe_md **ea,
1286 struct obd_trans_info *oti);
1287 int (*o_destroy)(struct obd_export *exp, struct obdo *oa,
1288 struct lov_stripe_md *ea, struct obd_trans_info *oti,
1289 struct obd_export *md_exp, void *capa);
1290 int (*o_setattr)(struct obd_export *exp, struct obd_info *oinfo,
1291 struct obd_trans_info *oti);
1292 int (*o_setattr_async)(struct obd_export *exp, struct obd_info *oinfo,
1293 struct obd_trans_info *oti,
1294 struct ptlrpc_request_set *rqset);
1295 int (*o_getattr)(struct obd_export *exp, struct obd_info *oinfo);
1296 int (*o_getattr_async)(struct obd_export *exp, struct obd_info *oinfo,
1297 struct ptlrpc_request_set *set);
1298 int (*o_brw)(int rw, struct obd_export *exp, struct obd_info *oinfo,
1299 obd_count oa_bufs, struct brw_page *pgarr,
1300 struct obd_trans_info *oti);
1301 int (*o_merge_lvb)(struct obd_export *exp, struct lov_stripe_md *lsm,
1302 struct ost_lvb *lvb, int kms_only);
1303 int (*o_adjust_kms)(struct obd_export *exp, struct lov_stripe_md *lsm,
1304 obd_off size, int shrink);
1305 int (*o_punch)(struct obd_export *exp, struct obd_info *oinfo,
1306 struct obd_trans_info *oti,
1307 struct ptlrpc_request_set *rqset);
1308 int (*o_sync)(struct obd_export *exp, struct obdo *oa,
1309 struct lov_stripe_md *ea, obd_size start, obd_size end,
1311 int (*o_migrate)(struct lustre_handle *conn, struct lov_stripe_md *dst,
1312 struct lov_stripe_md *src, obd_size start,
1313 obd_size end, struct obd_trans_info *oti);
1314 int (*o_copy)(struct lustre_handle *dstconn, struct lov_stripe_md *dst,
1315 struct lustre_handle *srconn, struct lov_stripe_md *src,
1316 obd_size start, obd_size end, struct obd_trans_info *);
1317 int (*o_iterate)(struct lustre_handle *conn,
1318 int (*)(obd_id, obd_seq, void *),
1319 obd_id *startid, obd_seq seq, void *data);
1320 int (*o_preprw)(int cmd, struct obd_export *exp, struct obdo *oa,
1321 int objcount, struct obd_ioobj *obj,
1322 struct niobuf_remote *remote, int *nr_pages,
1323 struct niobuf_local *local,
1324 struct obd_trans_info *oti,
1325 struct lustre_capa *capa);
1326 int (*o_commitrw)(int cmd, struct obd_export *exp, struct obdo *oa,
1327 int objcount, struct obd_ioobj *obj,
1328 struct niobuf_remote *remote, int pages,
1329 struct niobuf_local *local,
1330 struct obd_trans_info *oti, int rc);
1331 int (*o_enqueue)(struct obd_export *, struct obd_info *oinfo,
1332 struct ldlm_enqueue_info *einfo,
1333 struct ptlrpc_request_set *rqset);
1334 int (*o_change_cbdata)(struct obd_export *, struct lov_stripe_md *,
1335 ldlm_iterator_t it, void *data);
1336 int (*o_find_cbdata)(struct obd_export *, struct lov_stripe_md *,
1337 ldlm_iterator_t it, void *data);
1338 int (*o_cancel)(struct obd_export *, struct lov_stripe_md *md,
1339 __u32 mode, struct lustre_handle *);
1340 int (*o_cancel_unused)(struct obd_export *, struct lov_stripe_md *,
1341 ldlm_cancel_flags_t flags, void *opaque);
1342 int (*o_init_export)(struct obd_export *exp);
1343 int (*o_destroy_export)(struct obd_export *exp);
1344 int (*o_extent_calc)(struct obd_export *, struct lov_stripe_md *,
1345 int cmd, obd_off *);
1347 /* llog related obd_methods */
1348 int (*o_llog_init)(struct obd_device *obd, struct obd_llog_group *grp,
1349 struct obd_device *disk_obd, int *idx);
1350 int (*o_llog_finish)(struct obd_device *obd, int count);
1351 int (*o_llog_connect)(struct obd_export *, struct llogd_conn_body *);
1353 /* metadata-only methods */
1354 int (*o_pin)(struct obd_export *, const struct lu_fid *fid,
1355 struct obd_capa *, struct obd_client_handle *, int flag);
1356 int (*o_unpin)(struct obd_export *, struct obd_client_handle *, int);
1358 int (*o_import_event)(struct obd_device *, struct obd_import *,
1359 enum obd_import_event);
1361 int (*o_notify)(struct obd_device *obd, struct obd_device *watched,
1362 enum obd_notify_event ev, void *data);
1364 int (*o_health_check)(struct obd_device *);
1365 struct obd_uuid *(*o_get_uuid) (struct obd_export *exp);
1368 int (*o_quotacheck)(struct obd_device *, struct obd_export *,
1369 struct obd_quotactl *);
1370 int (*o_quotactl)(struct obd_device *, struct obd_export *,
1371 struct obd_quotactl *);
1372 int (*o_quota_adjust_qunit)(struct obd_export *exp,
1373 struct quota_adjust_qunit *oqaq,
1374 struct lustre_quota_ctxt *qctxt);
1377 int (*o_ping)(struct obd_export *exp);
1380 int (*o_pool_new)(struct obd_device *obd, char *poolname);
1381 int (*o_pool_del)(struct obd_device *obd, char *poolname);
1382 int (*o_pool_add)(struct obd_device *obd, char *poolname,
1384 int (*o_pool_rem)(struct obd_device *obd, char *poolname,
1386 void (*o_getref)(struct obd_device *obd);
1387 void (*o_putref)(struct obd_device *obd);
1389 * NOTE: If adding ops, add another LPROCFS_OBD_OP_INIT() line
1390 * to lprocfs_alloc_obd_stats() in obdclass/lprocfs_status.c.
1391 * Also, add a wrapper function in include/linux/obd_class.h. */
1395 LUSTRE_OPC_MKDIR = (1 << 0),
1396 LUSTRE_OPC_SYMLINK = (1 << 1),
1397 LUSTRE_OPC_MKNOD = (1 << 2),
1398 LUSTRE_OPC_CREATE = (1 << 3),
1399 LUSTRE_OPC_ANY = (1 << 4)
1402 /* lmv structures */
1403 #define MEA_MAGIC_LAST_CHAR 0xb2221ca1
1404 #define MEA_MAGIC_ALL_CHARS 0xb222a11c
1405 #define MEA_MAGIC_HASH_SEGMENT 0xb222a11b
1407 #define MAX_HASH_SIZE_32 0x7fffffffUL
1408 #define MAX_HASH_SIZE 0x7fffffffffffffffULL
1409 #define MAX_HASH_HIGHEST_BIT 0x1000000000000000ULL
1412 struct mdt_body *body;
1413 struct lov_stripe_md *lsm;
1414 struct lmv_stripe_md *mea;
1415 #ifdef CONFIG_FS_POSIX_ACL
1416 struct posix_acl *posix_acl;
1418 struct mdt_remote_perm *remote_perm;
1419 struct obd_capa *mds_capa;
1420 struct obd_capa *oss_capa;
1423 struct md_open_data {
1424 struct obd_client_handle *mod_och;
1425 struct ptlrpc_request *mod_open_req;
1426 struct ptlrpc_request *mod_close_req;
1427 cfs_atomic_t mod_refcount;
1430 struct lookup_intent;
1433 int (*m_getstatus)(struct obd_export *, struct lu_fid *,
1434 struct obd_capa **);
1435 int (*m_change_cbdata)(struct obd_export *, const struct lu_fid *,
1436 ldlm_iterator_t, void *);
1437 int (*m_find_cbdata)(struct obd_export *, const struct lu_fid *,
1438 ldlm_iterator_t, void *);
1439 int (*m_close)(struct obd_export *, struct md_op_data *,
1440 struct md_open_data *, struct ptlrpc_request **);
1441 int (*m_create)(struct obd_export *, struct md_op_data *,
1442 const void *, int, int, __u32, __u32, cfs_cap_t,
1443 __u64, struct ptlrpc_request **);
1444 int (*m_done_writing)(struct obd_export *, struct md_op_data *,
1445 struct md_open_data *);
1446 int (*m_enqueue)(struct obd_export *, struct ldlm_enqueue_info *,
1447 struct lookup_intent *, struct md_op_data *,
1448 struct lustre_handle *, void *, int,
1449 struct ptlrpc_request **, int);
1450 int (*m_getattr)(struct obd_export *, struct md_op_data *,
1451 struct ptlrpc_request **);
1452 int (*m_getattr_name)(struct obd_export *, struct md_op_data *,
1453 struct ptlrpc_request **);
1454 int (*m_intent_lock)(struct obd_export *, struct md_op_data *,
1455 void *, int, struct lookup_intent *, int,
1456 struct ptlrpc_request **,
1457 ldlm_blocking_callback, int);
1458 int (*m_link)(struct obd_export *, struct md_op_data *,
1459 struct ptlrpc_request **);
1460 int (*m_rename)(struct obd_export *, struct md_op_data *,
1461 const char *, int, const char *, int,
1462 struct ptlrpc_request **);
1463 int (*m_is_subdir)(struct obd_export *, const struct lu_fid *,
1464 const struct lu_fid *,
1465 struct ptlrpc_request **);
1466 int (*m_setattr)(struct obd_export *, struct md_op_data *, void *,
1467 int , void *, int, struct ptlrpc_request **,
1468 struct md_open_data **mod);
1469 int (*m_sync)(struct obd_export *, const struct lu_fid *,
1470 struct obd_capa *, struct ptlrpc_request **);
1471 int (*m_readpage)(struct obd_export *, const struct lu_fid *,
1472 struct obd_capa *, __u64, struct page *,
1473 struct ptlrpc_request **);
1475 int (*m_unlink)(struct obd_export *, struct md_op_data *,
1476 struct ptlrpc_request **);
1478 int (*m_setxattr)(struct obd_export *, const struct lu_fid *,
1479 struct obd_capa *, obd_valid, const char *,
1480 const char *, int, int, int, __u32,
1481 struct ptlrpc_request **);
1483 int (*m_getxattr)(struct obd_export *, const struct lu_fid *,
1484 struct obd_capa *, obd_valid, const char *,
1485 const char *, int, int, int,
1486 struct ptlrpc_request **);
1488 int (*m_init_ea_size)(struct obd_export *, int, int, int);
1490 int (*m_get_lustre_md)(struct obd_export *, struct ptlrpc_request *,
1491 struct obd_export *, struct obd_export *,
1492 struct lustre_md *);
1494 int (*m_free_lustre_md)(struct obd_export *, struct lustre_md *);
1496 int (*m_set_open_replay_data)(struct obd_export *,
1497 struct obd_client_handle *,
1498 struct ptlrpc_request *);
1499 int (*m_clear_open_replay_data)(struct obd_export *,
1500 struct obd_client_handle *);
1501 int (*m_set_lock_data)(struct obd_export *, __u64 *, void *, __u32 *);
1503 ldlm_mode_t (*m_lock_match)(struct obd_export *, int,
1504 const struct lu_fid *, ldlm_type_t,
1505 ldlm_policy_data_t *, ldlm_mode_t,
1506 struct lustre_handle *);
1508 int (*m_cancel_unused)(struct obd_export *, const struct lu_fid *,
1509 ldlm_policy_data_t *, ldlm_mode_t,
1510 ldlm_cancel_flags_t flags, void *opaque);
1511 int (*m_renew_capa)(struct obd_export *, struct obd_capa *oc,
1512 renew_capa_cb_t cb);
1513 int (*m_unpack_capa)(struct obd_export *, struct ptlrpc_request *,
1514 const struct req_msg_field *, struct obd_capa **);
1516 int (*m_get_remote_perm)(struct obd_export *, const struct lu_fid *,
1517 struct obd_capa *, __u32,
1518 struct ptlrpc_request **);
1520 int (*m_intent_getattr_async)(struct obd_export *,
1521 struct md_enqueue_info *,
1522 struct ldlm_enqueue_info *);
1524 int (*m_revalidate_lock)(struct obd_export *, struct lookup_intent *,
1525 struct lu_fid *, __u32 *);
1528 * NOTE: If adding ops, add another LPROCFS_MD_OP_INIT() line to
1529 * lprocfs_alloc_md_stats() in obdclass/lprocfs_status.c. Also, add a
1530 * wrapper function in include/linux/obd_class.h.
1534 struct lsm_operations {
1535 void (*lsm_free)(struct lov_stripe_md *);
1536 int (*lsm_destroy)(struct lov_stripe_md *, struct obdo *oa,
1537 struct obd_export *md_exp);
1538 void (*lsm_stripe_by_index)(struct lov_stripe_md *, int *, obd_off *,
1540 void (*lsm_stripe_by_offset)(struct lov_stripe_md *, int *, obd_off *,
1542 int (*lsm_lmm_verify) (struct lov_mds_md *lmm, int lmm_bytes,
1544 int (*lsm_unpackmd) (struct lov_obd *lov, struct lov_stripe_md *lsm,
1545 struct lov_mds_md *lmm);
1548 extern const struct lsm_operations lsm_v1_ops;
1549 extern const struct lsm_operations lsm_v3_ops;
1550 static inline const struct lsm_operations *lsm_op_find(int magic)
1558 CERROR("Cannot recognize lsm_magic %08x\n", magic);
1563 int lvfs_check_io_health(struct obd_device *obd, struct file *file);
1565 /* Requests for obd_extent_calc() */
1566 #define OBD_CALC_STRIPE_START 1
1567 #define OBD_CALC_STRIPE_END 2
1569 static inline void obd_transno_commit_cb(struct obd_device *obd, __u64 transno,
1570 struct obd_export *exp, int error)
1573 CERROR("%s: transno "LPU64" commit error: %d\n",
1574 obd->obd_name, transno, error);
1577 if (exp && transno > exp->exp_last_committed) {
1578 CDEBUG(D_HA, "%s: transno "LPU64" committed\n",
1579 obd->obd_name, transno);
1580 exp->exp_last_committed = transno;
1581 ptlrpc_commit_replies(exp);
1583 CDEBUG(D_INFO, "%s: transno "LPU64" committed\n",
1584 obd->obd_name, transno);
1586 if (transno > obd->obd_last_committed)
1587 obd->obd_last_committed = transno;
1590 static inline void init_obd_quota_ops(quota_interface_t *interface,
1591 struct obd_ops *obd_ops)
1597 obd_ops->o_quotacheck = QUOTA_OP(interface, check);
1598 obd_ops->o_quotactl = QUOTA_OP(interface, ctl);
1599 obd_ops->o_quota_adjust_qunit = QUOTA_OP(interface, adjust_qunit);
1602 static inline struct lustre_capa *oinfo_capa(struct obd_info *oinfo)
1604 return oinfo->oi_capa;
1607 static inline struct md_open_data *obd_mod_alloc(void)
1609 struct md_open_data *mod;
1613 cfs_atomic_set(&mod->mod_refcount, 1);
1617 #define obd_mod_get(mod) cfs_atomic_inc(&(mod)->mod_refcount)
1618 #define obd_mod_put(mod) \
1620 if (cfs_atomic_dec_and_test(&(mod)->mod_refcount)) { \
1621 if ((mod)->mod_open_req) \
1622 ptlrpc_req_finished((mod)->mod_open_req); \
1623 OBD_FREE_PTR(mod); \
1627 extern void obdo_from_inode(struct obdo *dst, struct inode *src,
1628 struct lu_fid *parent, obd_flag valid);
1630 #endif /* __OBD_H */