4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
20 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
21 * CA 95054 USA or visit www.sun.com if you need additional information or
27 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
28 * Use is subject to license terms.
30 * Copyright (c) 2011, 2012, Whamcloud, Inc.
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 #define IOC_MDC_MAX_NR 50
59 #include <lustre/lustre_idl.h>
60 #ifdef HAVE_SERVER_SUPPORT
61 # include <lu_target.h>
64 #include <lustre_lib.h>
65 #include <lustre_export.h>
66 #include <lustre_quota.h>
67 #include <lustre_fld.h>
68 #include <lustre_capa.h>
70 #include <libcfs/bitmap.h>
73 #define MAX_OBD_DEVICES 8192
81 struct lov_oinfo { /* per-stripe data structure */
82 struct ost_id loi_oi; /* object ID/Sequence on the target OST */
83 int loi_ost_idx; /* OST stripe index in lov_tgt_desc->tgts */
84 int loi_ost_gen; /* generation of this loi_ost_idx */
86 unsigned long loi_kms_valid:1;
87 __u64 loi_kms; /* known minimum size */
88 struct ost_lvb loi_lvb;
89 struct osc_async_rc loi_ar;
91 #define loi_id loi_oi.oi_id
92 #define loi_seq loi_oi.oi_seq
94 static inline void loi_kms_set(struct lov_oinfo *oinfo, __u64 kms)
97 oinfo->loi_kms_valid = 1;
100 static inline void loi_init(struct lov_oinfo *loi)
104 struct lov_stripe_md {
105 cfs_atomic_t lsm_refc;
106 cfs_spinlock_t lsm_lock;
107 pid_t lsm_lock_owner; /* debugging */
109 /* maximum possible file size, might change as OSTs status changes,
110 * e.g. disconnected, deactivated */
113 /* Public members. */
114 __u64 lw_object_id; /* lov object id */
115 __u64 lw_object_seq; /* lov object seq */
117 /* LOV-private members start here -- only for use in lov/. */
119 __u32 lw_stripe_size; /* size of the stripe */
120 __u32 lw_pattern; /* striping pattern (RAID0, RAID1) */
121 __u16 lw_stripe_count; /* number of objects being striped over */
122 __u16 lw_layout_gen; /* generation of the layout */
123 char lw_pool_name[LOV_MAXPOOLNAME]; /* pool name */
126 struct lov_oinfo *lsm_oinfo[0];
129 #define lsm_object_id lsm_wire.lw_object_id
130 #define lsm_object_seq lsm_wire.lw_object_seq
131 #define lsm_magic lsm_wire.lw_magic
132 #define lsm_layout_gen lsm_wire.lw_layout_gen
133 #define lsm_stripe_size lsm_wire.lw_stripe_size
134 #define lsm_pattern lsm_wire.lw_pattern
135 #define lsm_stripe_count lsm_wire.lw_stripe_count
136 #define lsm_pool_name lsm_wire.lw_pool_name
140 typedef int (*obd_enqueue_update_f)(void *cookie, int rc);
142 /* obd info for a particular level (lov, osc). */
144 /* Lock policy. It keeps an extent which is specific for a particular
145 * OSC. (e.g. lov_prep_enqueue_set initialises extent of the policy,
146 * and osc_enqueue passes it into ldlm_lock_match & ldlm_cli_enqueue. */
147 ldlm_policy_data_t oi_policy;
148 /* Flags used for set request specific flags:
149 - while lock handling, the flags obtained on the enqueue
150 request are set here.
151 - while stats, the flags used for control delay/resend.
152 - while setattr, the flags used for distinguish punch operation
155 /* Lock handle specific for every OSC lock. */
156 struct lustre_handle *oi_lockh;
157 /* lsm data specific for every OSC. */
158 struct lov_stripe_md *oi_md;
159 /* obdo data specific for every OSC, if needed at all. */
161 /* statfs data specific for every OSC, if needed at all. */
162 struct obd_statfs *oi_osfs;
163 /* An update callback which is called to update some data on upper
164 * level. E.g. it is used for update lsm->lsm_oinfo at every recieved
165 * request in osc level for enqueue requests. It is also possible to
166 * update some caller data from LOV layer if needed. */
167 obd_enqueue_update_f oi_cb_up;
168 /* oss capability, its type is obd_capa in client to avoid copy.
169 * in contrary its type is lustre_capa in OSS. */
171 /* transfer jobid from ost_sync() to filter_sync()... */
175 /* compare all relevant fields. */
176 static inline int lov_stripe_md_cmp(struct lov_stripe_md *m1,
177 struct lov_stripe_md *m2)
180 * ->lsm_wire contains padding, but it should be zeroed out during
183 return memcmp(&m1->lsm_wire, &m2->lsm_wire, sizeof m1->lsm_wire);
186 static inline int lov_lum_lsm_cmp(struct lov_user_md *lum,
187 struct lov_stripe_md *lsm)
189 if (lsm->lsm_magic != lum->lmm_magic)
191 if ((lsm->lsm_stripe_count != 0) && (lum->lmm_stripe_count != 0) &&
192 (lsm->lsm_stripe_count != lum->lmm_stripe_count))
194 if ((lsm->lsm_stripe_size != 0) && (lum->lmm_stripe_size != 0) &&
195 (lsm->lsm_stripe_size != lum->lmm_stripe_size))
197 if ((lsm->lsm_pattern != 0) && (lum->lmm_pattern != 0) &&
198 (lsm->lsm_pattern != lum->lmm_pattern))
200 if ((lsm->lsm_magic == LOV_MAGIC_V3) &&
201 (strncmp(lsm->lsm_pool_name,
202 ((struct lov_user_md_v3 *)lum)->lmm_pool_name,
203 LOV_MAXPOOLNAME) != 0))
208 static inline int lov_lum_swab_if_needed(struct lov_user_md_v3 *lumv3,
210 struct lov_user_md *lum)
212 if (lum && cfs_copy_from_user(lumv3, lum,sizeof(struct lov_user_md_v1)))
215 *lmm_magic = lumv3->lmm_magic;
217 if (*lmm_magic == __swab32(LOV_USER_MAGIC_V1)) {
218 lustre_swab_lov_user_md_v1((struct lov_user_md_v1 *)lumv3);
219 *lmm_magic = LOV_USER_MAGIC_V1;
220 } else if (*lmm_magic == LOV_USER_MAGIC_V3) {
221 if (lum && cfs_copy_from_user(lumv3, lum, sizeof(*lumv3)))
223 } else if (*lmm_magic == __swab32(LOV_USER_MAGIC_V3)) {
224 if (lum && cfs_copy_from_user(lumv3, lum, sizeof(*lumv3)))
226 lustre_swab_lov_user_md_v3(lumv3);
227 *lmm_magic = LOV_USER_MAGIC_V3;
228 } else if (*lmm_magic != LOV_USER_MAGIC_V1) {
230 "bad userland LOV MAGIC: %#08x != %#08x nor %#08x\n",
231 *lmm_magic, LOV_USER_MAGIC_V1, LOV_USER_MAGIC_V3);
237 void lov_stripe_lock(struct lov_stripe_md *md);
238 void lov_stripe_unlock(struct lov_stripe_md *md);
241 cfs_list_t typ_chain;
242 struct obd_ops *typ_dt_ops;
243 struct md_ops *typ_md_ops;
244 cfs_proc_dir_entry_t *typ_procroot;
247 struct lu_device_type *typ_lu;
248 cfs_spinlock_t obd_type_lock;
258 /* Individual type definitions */
260 struct ost_server_data;
262 struct osd_properties {
263 size_t osd_max_ea_size;
266 #define OBT_MAGIC 0xBDDECEAE
267 /* hold common fields for "target" device */
268 struct obd_device_target {
271 struct super_block *obt_sb;
272 /** last_rcvd file */
273 struct file *obt_rcvd_filp;
274 #ifdef HAVE_SERVER_SUPPORT
275 struct lu_target *obt_lut;
277 __u64 obt_mount_count;
278 cfs_semaphore_t obt_quotachecking;
279 struct lustre_quota_ctxt obt_qctxt;
280 lustre_quota_version_t obt_qfmt;
281 cfs_rw_semaphore_t obt_rwsem;
282 struct vfsmount *obt_vfsmnt;
283 struct file *obt_health_check_filp;
284 struct osd_properties obt_osd_properties;
285 struct obd_job_stats obt_jobstats;
290 LLOG_CONFIG_ORIG_CTXT = 0,
291 LLOG_CONFIG_REPL_CTXT,
292 LLOG_MDS_OST_ORIG_CTXT,
293 LLOG_MDS_OST_REPL_CTXT,
300 LLOG_LOVEA_ORIG_CTXT,
301 LLOG_LOVEA_REPL_CTXT,
302 LLOG_CHANGELOG_ORIG_CTXT, /**< changelog generation on mdd */
303 LLOG_CHANGELOG_REPL_CTXT, /**< changelog access on clients */
304 LLOG_CHANGELOG_USER_ORIG_CTXT, /**< for multiple changelog consumers */
308 #define FILTER_SUBDIR_COUNT 32 /* set to zero for no subdirs */
310 struct filter_subdirs {
311 cfs_dentry_t *dentry[FILTER_SUBDIR_COUNT];
321 /* NB this field MUST be first */
322 struct obd_device_target fo_obt;
323 const char *fo_fstype;
326 cfs_dentry_t *fo_dentry_O;
327 cfs_dentry_t **fo_dentry_O_groups;
328 struct filter_subdirs *fo_dentry_O_sub;
329 cfs_mutex_t fo_init_lock; /* group initialization lock */
330 int fo_committed_group;
332 cfs_spinlock_t fo_objidlock; /* protect fo_lastobjid */
334 unsigned long fo_destroys_in_progress;
335 cfs_mutex_t fo_create_locks[FILTER_SUBDIR_COUNT];
337 cfs_list_t fo_export_list;
340 obd_size fo_tot_dirty; /* protected by obd_osfs_lock */
341 obd_size fo_tot_granted; /* all values in bytes */
342 obd_size fo_tot_pending;
343 int fo_tot_granted_clients;
345 obd_size fo_readcache_max_filesize;
346 cfs_spinlock_t fo_flags_lock;
347 unsigned int fo_read_cache:1, /**< enable read-only cache */
348 fo_writethrough_cache:1,/**< read cache writes */
349 fo_mds_ost_sync:1, /**< MDS-OST orphan recovery*/
350 fo_raid_degraded:1;/**< RAID device degraded */
352 struct obd_import *fo_mdc_imp;
353 struct obd_uuid fo_mdc_uuid;
354 struct lustre_handle fo_mdc_conn;
355 struct file **fo_last_objid_files;
356 __u64 *fo_last_objids; /* last created objid for groups,
357 * protected by fo_objidlock */
359 cfs_mutex_t fo_alloc_lock;
361 cfs_atomic_t fo_r_in_flight;
362 cfs_atomic_t fo_w_in_flight;
365 * per-filter pool of kiobuf's allocated by filter_common_setup() and
366 * torn down by filter_cleanup().
368 * This pool contains kiobuf used by
369 * filter_{prep,commit}rw_{read,write}() and is shared by all OST
372 * Locking: protected by internal lock of cfs_hash, pool can be
373 * found from this hash table by t_id of ptlrpc_thread.
375 struct cfs_hash *fo_iobuf_hash;
377 cfs_list_t fo_llog_list;
378 cfs_spinlock_t fo_llog_list_lock;
380 struct brw_stats fo_filter_stats;
381 struct lustre_quota_ctxt fo_quota_ctxt;
382 cfs_spinlock_t fo_quotacheck_lock;
383 cfs_atomic_t fo_quotachecking;
385 int fo_fmd_max_num; /* per exp filter_mod_data */
386 int fo_fmd_max_age; /* jiffies to fmd expiry */
387 unsigned long fo_syncjournal:1, /* sync journal on writes */
388 fo_sync_lock_cancel:2;/* sync on lock cancel */
392 cfs_rwlock_t fo_sptlrpc_lock;
393 struct sptlrpc_rule_set fo_sptlrpc_rset;
395 /* capability related */
396 unsigned int fo_fl_oss_capa;
397 cfs_list_t fo_capa_keys;
398 cfs_hlist_head_t *fo_capa_hash;
399 struct llog_commit_master *fo_lcm;
403 struct timeout_item {
404 enum timeout_event ti_event;
405 cfs_time_t ti_timeout;
408 cfs_list_t ti_obd_list;
412 #define OSC_MAX_RIF_DEFAULT 8
413 #define MDS_OSC_MAX_RIF_DEFAULT 50
414 #define OSC_MAX_RIF_MAX 256
415 #define OSC_MAX_DIRTY_DEFAULT (OSC_MAX_RIF_DEFAULT * 4)
416 #define OSC_MAX_DIRTY_MB_MAX 2048 /* arbitrary, but < MAX_LONG bytes */
417 #define OSC_DEFAULT_RESENDS 10
419 /* possible values for fo_sync_lock_cancel */
421 NEVER_SYNC_ON_CANCEL = 0,
422 BLOCKING_SYNC_ON_CANCEL = 1,
423 ALWAYS_SYNC_ON_CANCEL = 2,
424 NUM_SYNC_ON_CANCEL_STATES
427 #define MDC_MAX_RIF_DEFAULT 8
428 #define MDC_MAX_RIF_MAX 512
433 cfs_rw_semaphore_t cl_sem;
434 struct obd_uuid cl_target_uuid;
435 struct obd_import *cl_import; /* ptlrpc connection state */
437 /* max_mds_easize is purely a performance thing so we don't have to
438 * call obd_size_diskmd() all the time. */
439 int cl_default_mds_easize;
440 int cl_max_mds_easize;
441 int cl_max_mds_cookiesize;
443 enum lustre_sec_part cl_sp_me;
444 enum lustre_sec_part cl_sp_to;
445 struct sptlrpc_flavor cl_flvr_mgc; /* fixed flavor of mgc->mgs */
447 //struct llog_canceld_ctxt *cl_llcd; /* it's included by obd_llog_ctxt */
448 void *cl_llcd_offset;
450 /* the grant values are protected by loi_list_lock below */
451 long cl_dirty; /* all _dirty_ in bytes */
452 long cl_dirty_max; /* allowed w/o rpc */
453 long cl_dirty_transit; /* dirty synchronous */
454 long cl_avail_grant; /* bytes of credit for ost */
455 long cl_lost_grant; /* lost credits (trunc) */
457 /* since we allocate grant by blocks, we don't know how many grant will
458 * be used to add a page into cache. As a solution, we reserve maximum
459 * grant before trying to dirty a page and unreserve the rest.
460 * See osc_{reserve|unreserve}_grant for details. */
461 long cl_reserved_grant;
462 cfs_list_t cl_cache_waiters; /* waiting for cache/grant */
463 cfs_time_t cl_next_shrink_grant; /* jiffies */
464 cfs_list_t cl_grant_shrink_list; /* Timeout event list */
465 int cl_grant_shrink_interval; /* seconds */
467 /* A chunk is an optimal size used by osc_extent to determine
468 * the extent size. A chunk is max(CFS_PAGE_SIZE, OST block size) */
471 int cl_extent_tax; /* extent overhead, by bytes */
473 /* keep track of objects that have lois that contain pages which
474 * have been queued for async brw. this lock also protects the
475 * lists of osc_client_pages that hang off of the loi */
477 * ->cl_loi_list_lock protects consistency of
478 * ->cl_loi_{ready,read,write}_list. ->ap_make_ready() and
479 * ->ap_completion() call-backs are executed under this lock. As we
480 * cannot guarantee that these call-backs never block on all platforms
481 * (as a matter of fact they do block on Mac OS X), type of
482 * ->cl_loi_list_lock is platform dependent: it's a spin-lock on Linux
483 * and blocking mutex on Mac OS X. (Alternative is to make this lock
484 * blocking everywhere, but we don't want to slow down fast-path of
485 * our main platform.)
487 * Exact type of ->cl_loi_list_lock is defined in arch/obd.h together
488 * with client_obd_list_{un,}lock() and
489 * client_obd_list_lock_{init,done}() functions.
491 * NB by Jinshan: though field names are still _loi_, but actually
492 * osc_object{}s are in the list.
494 client_obd_lock_t cl_loi_list_lock;
495 cfs_list_t cl_loi_ready_list;
496 cfs_list_t cl_loi_hp_ready_list;
497 cfs_list_t cl_loi_write_list;
498 cfs_list_t cl_loi_read_list;
501 /* just a sum of the loi/lop pending numbers to be exported by /proc */
502 cfs_atomic_t cl_pending_w_pages;
503 cfs_atomic_t cl_pending_r_pages;
504 int cl_max_pages_per_rpc;
505 int cl_max_rpcs_in_flight;
506 struct obd_histogram cl_read_rpc_hist;
507 struct obd_histogram cl_write_rpc_hist;
508 struct obd_histogram cl_read_page_hist;
509 struct obd_histogram cl_write_page_hist;
510 struct obd_histogram cl_read_offset_hist;
511 struct obd_histogram cl_write_offset_hist;
513 /* number of in flight destroy rpcs is limited to max_rpcs_in_flight */
514 cfs_atomic_t cl_destroy_in_flight;
515 cfs_waitq_t cl_destroy_waitq;
517 struct mdc_rpc_lock *cl_rpc_lock;
518 struct mdc_rpc_lock *cl_close_lock;
519 struct osc_creator cl_oscc;
522 cfs_semaphore_t cl_mgc_sem;
523 struct vfsmount *cl_mgc_vfsmnt;
524 struct dentry *cl_mgc_configs_dir;
525 cfs_atomic_t cl_mgc_refcount;
526 struct obd_export *cl_mgc_mgsexp;
528 /* checksumming for data sent over the network */
529 unsigned int cl_checksum:1; /* 0 = disabled, 1 = enabled */
530 /* supported checksum types that are worked out at connect time */
531 __u32 cl_supp_cksum_types;
532 /* checksum algorithm to be used */
533 cksum_type_t cl_cksum_type;
535 /* also protected by the poorly named _loi_list_lock lock above */
536 struct osc_async_rc cl_ar;
538 /* used by quotacheck */
539 int cl_qchk_stat; /* quotacheck stat of the peer */
541 /* sequence manager */
542 struct lu_client_seq *cl_seq;
544 cfs_atomic_t cl_resends; /* resend count */
546 /* ptlrpc work for writeback in ptlrpcd context */
547 void *cl_writeback_work;
548 /* hash tables for osc_quota_info */
549 cfs_hash_t *cl_quota_hash[MAXQUOTAS];
551 #define obd2cli_tgt(obd) ((char *)(obd)->u.cli.cl_target_uuid.uuid)
553 #define CL_NOT_QUOTACHECKED 1 /* client->cl_qchk_stat init value */
556 /* NB this field MUST be first */
557 struct obd_device_target mds_obt;
558 struct ptlrpc_service *mds_service;
559 struct ptlrpc_service *mds_setattr_service;
560 struct ptlrpc_service *mds_readpage_service;
562 int mds_max_cookiesize;
564 unsigned long mds_atime_diff;
565 struct ll_fid mds_rootfid;
566 cfs_dentry_t *mds_pending_dir;
567 cfs_dentry_t *mds_logs_dir;
568 cfs_dentry_t *mds_objects_dir;
569 struct llog_handle *mds_cfg_llh;
570 struct obd_device *mds_lov_obd;
571 struct obd_uuid mds_lov_uuid;
573 struct obd_export *mds_lov_exp;
574 struct lov_desc mds_lov_desc;
577 /* mark pages dirty for write. */
578 cfs_bitmap_t *mds_lov_page_dirty;
579 /* array for store pages with obd_id */
580 void **mds_lov_page_array;
581 /* file for store objid */
582 struct file *mds_lov_objid_filp;
583 __u32 mds_lov_objid_count;
584 __u32 mds_lov_objid_max_index;
585 __u32 mds_lov_objid_lastpage;
586 __u32 mds_lov_objid_lastidx;
589 struct lustre_quota_info mds_quota_info;
590 cfs_rw_semaphore_t mds_qonoff_sem;
591 unsigned long mds_fl_user_xattr:1,
593 mds_evict_ost_nids:1,
597 mds_fl_target:1; /* mds have one or
600 struct upcall_cache *mds_identity_cache;
602 /* for capability keys update */
603 struct lustre_capa_key *mds_capa_keys;
604 cfs_rw_semaphore_t mds_notify_lock;
608 extern __u32 mds_max_ost_index;
610 #define MDS_LOV_ALLOC_SIZE (CFS_PAGE_SIZE)
612 #define OBJID_PER_PAGE() (MDS_LOV_ALLOC_SIZE / sizeof(obd_id))
614 #define MDS_LOV_OBJID_PAGES_COUNT (mds_max_ost_index/OBJID_PER_PAGE())
616 extern int mds_lov_init_objids(struct obd_device *obd);
617 extern void mds_lov_destroy_objids(struct obd_device *obd);
627 struct obd_device_target eo_obt;
629 cfs_spinlock_t eo_lock;
631 struct lustre_handle eo_nl_lock;
632 cfs_atomic_t eo_prep;
636 struct ptlrpc_service *ost_service;
637 struct ptlrpc_service *ost_create_service;
638 struct ptlrpc_service *ost_io_service;
639 cfs_mutex_t ost_health_mutex;
642 struct echo_client_obd {
643 struct obd_export *ec_exp; /* the local connection to osc/lov */
644 cfs_spinlock_t ec_lock;
645 cfs_list_t ec_objects;
652 struct obd_uuid lqo_uuid; /* ptlrpc's c_remote_uuid */
653 cfs_list_t lqo_oss_list; /* link to lov_qos */
654 __u64 lqo_bavail; /* total bytes avail on OSS */
655 __u64 lqo_penalty; /* current penalty */
656 __u64 lqo_penalty_per_obj;/* penalty decrease every obj*/
657 time_t lqo_used; /* last used time, seconds */
658 __u32 lqo_ost_count; /* number of osts on this oss */
662 struct lov_qos_oss *ltq_oss; /* oss info */
663 __u64 ltq_penalty; /* current penalty */
664 __u64 ltq_penalty_per_obj; /* penalty decrease every obj*/
665 __u64 ltq_weight; /* net weighting */
666 time_t ltq_used; /* last used time, seconds */
667 unsigned int ltq_usable:1; /* usable for striping */
670 /* Generic subset of OSTs */
672 __u32 *op_array; /* array of index of
674 unsigned int op_count; /* number of OSTs in the array */
675 unsigned int op_size; /* allocated size of lp_array */
676 cfs_rw_semaphore_t op_rw_sem; /* to protect ost_pool use */
679 /* Round-robin allocator data */
681 __u32 lqr_start_idx; /* start index of new inode */
682 __u32 lqr_offset_idx; /* aliasing for start_idx */
683 int lqr_start_count; /* reseed counter */
684 struct ost_pool lqr_pool; /* round-robin optimized list */
685 unsigned long lqr_dirty:1; /* recalc round-robin list */
688 /* allow statfs data caching for 1 second */
689 #define OBD_STATFS_CACHE_SECONDS 1
691 struct lov_statfs_data {
692 struct obd_info lsd_oi;
693 struct obd_statfs lsd_statfs;
695 /* Stripe placement optimization */
697 cfs_list_t lq_oss_list; /* list of OSSs that targets use */
698 cfs_rw_semaphore_t lq_rw_sem;
699 __u32 lq_active_oss_count;
700 unsigned int lq_prio_free; /* priority for free space */
701 unsigned int lq_threshold_rr;/* priority for rr */
702 struct lov_qos_rr lq_rr; /* round robin qos data */
703 unsigned long lq_dirty:1, /* recalc qos data */
704 lq_same_space:1,/* the ost's all have approx.
705 the same space avail */
706 lq_reset:1, /* zero current penalties */
707 lq_statfs_in_progress:1; /* statfs op in
709 /* qos statfs data */
710 struct lov_statfs_data *lq_statfs_data;
711 cfs_waitq_t lq_statfs_waitq; /* waitqueue to notify statfs
712 * requests completion */
715 struct lov_tgt_desc {
717 struct obd_uuid ltd_uuid;
718 struct obd_device *ltd_obd;
719 struct obd_export *ltd_exp;
720 struct ltd_qos ltd_qos; /* qos info per target */
722 __u32 ltd_index; /* index in lov_obd->tgts */
723 unsigned long ltd_active:1,/* is this target up for requests */
724 ltd_activate:1,/* should target be activated */
725 ltd_reap:1; /* should this target be deleted */
729 #define pool_tgt_size(_p) _p->pool_obds.op_size
730 #define pool_tgt_count(_p) _p->pool_obds.op_count
731 #define pool_tgt_array(_p) _p->pool_obds.op_array
732 #define pool_tgt_rw_sem(_p) _p->pool_obds.op_rw_sem
735 char pool_name[LOV_MAXPOOLNAME + 1]; /* name of pool */
736 struct ost_pool pool_obds; /* pool members */
737 cfs_atomic_t pool_refcount; /* pool ref. counter */
738 struct lov_qos_rr pool_rr; /* round robin qos */
739 cfs_hlist_node_t pool_hash; /* access by poolname */
740 cfs_list_t pool_list; /* serial access */
741 cfs_proc_dir_entry_t *pool_proc_entry; /* file in /proc */
742 struct obd_device *pool_lobd; /* obd of the lov/lod to which
743 * this pool belongs */
747 struct lov_desc desc;
748 struct lov_tgt_desc **lov_tgts; /* sparse array */
749 struct ost_pool lov_packed; /* all OSTs in a packed
751 cfs_mutex_t lov_lock;
752 struct obd_connect_data lov_ocd;
753 struct lov_qos lov_qos; /* qos info per lov */
754 cfs_atomic_t lov_refcount;
755 __u32 lov_tgt_count; /* how many OBD's */
756 __u32 lov_active_tgt_count; /* how many active */
757 __u32 lov_death_row;/* tgts scheduled to be deleted */
758 __u32 lov_tgt_size; /* size of tgts array */
761 cfs_hash_t *lov_pools_hash_body; /* used for key access */
762 cfs_list_t lov_pool_list; /* used for sequential access */
763 cfs_proc_dir_entry_t *lov_pool_proc_entry;
764 enum lustre_sec_part lov_sp_me;
767 struct lmv_tgt_desc {
768 struct obd_uuid ltd_uuid;
769 struct obd_export *ltd_exp;
770 int ltd_active; /* is this target up for requests */
772 cfs_mutex_t ltd_fid_mutex;
775 enum placement_policy {
776 PLACEMENT_CHAR_POLICY = 0,
777 PLACEMENT_NID_POLICY = 1,
778 PLACEMENT_INVAL_POLICY = 2,
782 typedef enum placement_policy placement_policy_t;
786 struct lu_client_fld lmv_fld;
787 cfs_spinlock_t lmv_lock;
788 placement_policy_t lmv_placement;
789 struct lmv_desc desc;
790 struct obd_uuid cluuid;
791 struct obd_export *exp;
798 cfs_mutex_t init_mutex;
800 struct lmv_tgt_desc *tgts;
803 struct obd_connect_data *datas;
806 struct obd_connect_data conn_data;
809 struct niobuf_local {
810 __u64 lnb_file_offset;
811 __u32 lnb_page_offset;
815 cfs_dentry_t *dentry;
820 #define LUSTRE_FLD_NAME "fld"
821 #define LUSTRE_SEQ_NAME "seq"
823 #define LUSTRE_CMM_NAME "cmm"
824 #define LUSTRE_MDD_NAME "mdd"
825 #define LUSTRE_OSD_LDISKFS_NAME "osd-ldiskfs"
826 #define LUSTRE_OSD_ZFS_NAME "osd-zfs"
827 #define LUSTRE_VVP_NAME "vvp"
828 #define LUSTRE_LMV_NAME "lmv"
829 #define LUSTRE_CMM_MDC_NAME "cmm-mdc"
830 #define LUSTRE_SLP_NAME "slp"
831 #define LUSTRE_LOD_NAME "lod"
832 #define LUSTRE_OSP_NAME "osp"
834 /* obd device type names */
835 /* FIXME all the references to LUSTRE_MDS_NAME should be swapped with LUSTRE_MDT_NAME */
836 #define LUSTRE_MDS_NAME "mds"
837 #define LUSTRE_MDT_NAME "mdt"
838 #define LUSTRE_MDC_NAME "mdc"
839 #define LUSTRE_OSS_NAME "ost" /* FIXME change name to oss */
840 #define LUSTRE_OST_NAME "obdfilter" /* FIXME change name to ost */
841 #define LUSTRE_OSC_NAME "osc"
842 #define LUSTRE_LOV_NAME "lov"
843 #define LUSTRE_MGS_NAME "mgs"
844 #define LUSTRE_MGC_NAME "mgc"
846 #define LUSTRE_CACHEOBD_NAME "cobd"
847 #define LUSTRE_ECHO_NAME "obdecho"
848 #define LUSTRE_ECHO_CLIENT_NAME "echo_client"
850 /* Constant obd names (post-rename) */
851 #define LUSTRE_MDS_OBDNAME "MDS"
852 #define LUSTRE_OSS_OBDNAME "OSS"
853 #define LUSTRE_MGS_OBDNAME "MGS"
854 #define LUSTRE_MGC_OBDNAME "MGC"
856 /* Don't conflict with on-wire flags OBD_BRW_WRITE, etc */
857 #define N_LOCAL_TEMP_PAGE 0x10000000
859 struct obd_trans_info {
862 /* Only used on the server side for tracking acks. */
863 struct oti_req_ack_lock {
864 struct lustre_handle lock;
868 struct llog_cookie oti_onecookie;
869 struct llog_cookie *oti_logcookies;
871 /** synchronous write is needed */
872 long oti_sync_write:1;
874 /* initial thread handling transaction */
875 struct ptlrpc_thread * oti_thread;
878 __u64 oti_pre_version;
882 struct obd_uuid *oti_ost_uuid;
885 static inline void oti_init(struct obd_trans_info *oti,
886 struct ptlrpc_request *req)
890 memset(oti, 0, sizeof(*oti));
895 oti->oti_xid = req->rq_xid;
896 /** VBR: take versions from request */
897 if (req->rq_reqmsg != NULL &&
898 lustre_msg_get_flags(req->rq_reqmsg) & MSG_REPLAY) {
899 __u64 *pre_version = lustre_msg_get_versions(req->rq_reqmsg);
900 oti->oti_pre_version = pre_version ? pre_version[0] : 0;
901 oti->oti_transno = lustre_msg_get_transno(req->rq_reqmsg);
904 /** called from mds_create_objects */
905 if (req->rq_repmsg != NULL)
906 oti->oti_transno = lustre_msg_get_transno(req->rq_repmsg);
907 oti->oti_thread = req->rq_svc_thread;
908 if (req->rq_reqmsg != NULL)
909 oti->oti_conn_cnt = lustre_msg_get_conn_cnt(req->rq_reqmsg);
912 static inline void oti_alloc_cookies(struct obd_trans_info *oti,int num_cookies)
917 if (num_cookies == 1)
918 oti->oti_logcookies = &oti->oti_onecookie;
920 OBD_ALLOC_LARGE(oti->oti_logcookies,
921 num_cookies * sizeof(oti->oti_onecookie));
923 oti->oti_numcookies = num_cookies;
926 static inline void oti_free_cookies(struct obd_trans_info *oti)
928 if (!oti || !oti->oti_logcookies)
931 if (oti->oti_logcookies == &oti->oti_onecookie)
932 LASSERT(oti->oti_numcookies == 1);
934 OBD_FREE_LARGE(oti->oti_logcookies,
935 oti->oti_numcookies*sizeof(oti->oti_onecookie));
936 oti->oti_logcookies = NULL;
937 oti->oti_numcookies = 0;
941 * Events signalled through obd_notify() upcall-chain.
943 enum obd_notify_event {
946 /* Device connect start */
948 /* Device activated */
950 /* Device deactivated */
952 /* Device disconnected */
954 /* Connect data for import were changed */
957 OBD_NOTIFY_SYNC_NONBLOCK,
959 /* Configuration event */
961 /* Administratively deactivate/activate event */
962 OBD_NOTIFY_DEACTIVATE,
966 /* bit-mask flags for config events */
968 CONFIG_LOG = 0x1, /* finished processing config log */
969 CONFIG_SYNC = 0x2, /* mdt synced 1 ost */
970 CONFIG_TARGET = 0x4 /* one target is added */
974 * Data structure used to pass obd_notify()-event to non-obd listeners (llite
975 * and liblustre being main examples).
977 struct obd_notify_upcall {
978 int (*onu_upcall)(struct obd_device *host, struct obd_device *watched,
979 enum obd_notify_event ev, void *owner, void *data);
980 /* Opaque datum supplied by upper layer listener */
984 struct target_recovery_data {
985 svc_handler_t trd_recovery_handler;
986 pid_t trd_processing_task;
987 cfs_completion_t trd_starting;
988 cfs_completion_t trd_finishing;
992 * In HEAD for CMD, the object is created in group number which is 3>=
993 * or indexing starts from 3. To test this assertions are added to disallow
994 * group 0. But to run 2.0 mds server on 1.8.x disk format (i.e. interop_mode)
995 * object in group 0 needs to be allowed.
996 * So for interop mode following changes needs to be done:
997 * 1. No need to assert on group 0 or allow group 0
998 * 2. The group number indexing starts from 0 instead of 3
1001 #define LASSERT_SEQ_IS_MDT(seq) LASSERT(fid_seq_is_mdt(seq))
1003 static inline __u64 objseq_to_mdsno(obd_seq seq)
1005 LASSERT_SEQ_IS_MDT(seq);
1006 if (seq == FID_SEQ_OST_MDT0)
1008 return seq - FID_SEQ_OST_MDT1 + 1;
1011 static inline int mdt_to_obd_objseq(int mdtid)
1014 * MDS0 uses seq 0 pre FID-on-OST, other MDSes will use seq from
1018 return FID_SEQ_OST_MDT1 + mdtid - 1;
1022 struct obd_llog_group {
1023 cfs_list_t olg_list;
1025 struct llog_ctxt *olg_ctxts[LLOG_MAX_CTXTS];
1026 cfs_waitq_t olg_waitq;
1027 cfs_spinlock_t olg_lock;
1028 struct obd_export *olg_exp;
1029 int olg_initializing;
1030 cfs_mutex_t olg_cat_processing;
1033 /* corresponds to one of the obd's */
1034 #define OBD_DEVICE_MAGIC 0XAB5CD6EF
1035 #define OBD_DEV_BY_DEVNAME 0xffffd0de
1038 struct obd_type *obd_type;
1041 /* common and UUID name of this device */
1042 char obd_name[MAX_OBD_NAME];
1043 struct obd_uuid obd_uuid;
1045 struct lu_device *obd_lu_dev;
1048 /* bitfield modification is protected by obd_dev_lock */
1049 unsigned long obd_attached:1, /* finished attach */
1050 obd_set_up:1, /* finished setup */
1051 obd_recovering:1, /* there are recoverable clients */
1052 obd_abort_recovery:1,/* recovery expired */
1053 obd_version_recov:1, /* obd uses version checking */
1054 obd_replayable:1, /* recovery is enabled; inform clients */
1055 obd_no_transno:1, /* no committed-transno notification */
1056 obd_no_recov:1, /* fail instead of retry messages */
1057 obd_stopping:1, /* started cleanup */
1058 obd_starting:1, /* started setup */
1059 obd_force:1, /* cleanup with > 0 obd refcount */
1060 obd_fail:1, /* cleanup with failover */
1061 obd_async_recov:1, /* allow asynchronous orphan cleanup */
1062 obd_no_conn:1, /* deny new connections */
1063 obd_inactive:1, /* device active/inactive
1064 * (for /proc/status only!!) */
1065 obd_no_ir:1, /* no imperative recovery. */
1066 obd_process_conf:1; /* device is processing mgs config */
1067 /* use separate field as it is set in interrupt to don't mess with
1068 * protection of other bits using _bh lock */
1069 unsigned long obd_recovery_expired:1;
1070 /* uuid-export hash body */
1071 cfs_hash_t *obd_uuid_hash;
1072 /* nid-export hash body */
1073 cfs_hash_t *obd_nid_hash;
1074 /* nid stats body */
1075 cfs_hash_t *obd_nid_stats_hash;
1076 cfs_list_t obd_nid_stats;
1077 cfs_atomic_t obd_refcount;
1078 cfs_waitq_t obd_refcount_waitq;
1079 cfs_list_t obd_exports;
1080 cfs_list_t obd_unlinked_exports;
1081 cfs_list_t obd_delayed_exports;
1082 int obd_num_exports;
1083 cfs_spinlock_t obd_nid_lock;
1084 struct ldlm_namespace *obd_namespace;
1085 struct ptlrpc_client obd_ldlm_client; /* XXX OST/MDS only */
1086 /* a spinlock is OK for what we do now, may need a semaphore later */
1087 cfs_spinlock_t obd_dev_lock; /* protects obd bitfield above */
1088 cfs_mutex_t obd_dev_mutex;
1089 __u64 obd_last_committed;
1090 struct fsfilt_operations *obd_fsops;
1091 cfs_spinlock_t obd_osfs_lock;
1092 struct obd_statfs obd_osfs; /* locked by obd_osfs_lock */
1094 struct lvfs_run_ctxt obd_lvfs_ctxt;
1095 struct obd_llog_group obd_olg; /* default llog group */
1096 struct obd_device *obd_observer;
1097 cfs_rw_semaphore_t obd_observer_link_sem;
1098 struct obd_notify_upcall obd_upcall;
1099 struct obd_export *obd_self_export;
1100 /* list of exports in LRU order, for ping evictor, with obd_dev_lock */
1101 cfs_list_t obd_exports_timed;
1102 time_t obd_eviction_timer; /* for ping evictor */
1104 int obd_max_recoverable_clients;
1105 cfs_atomic_t obd_connected_clients;
1106 int obd_stale_clients;
1107 int obd_delayed_clients;
1108 /* this lock protects all recovery list_heads, timer and
1109 * obd_next_recovery_transno value */
1110 cfs_spinlock_t obd_recovery_task_lock;
1111 __u64 obd_next_recovery_transno;
1112 int obd_replayed_requests;
1113 int obd_requests_queued_for_recovery;
1114 cfs_waitq_t obd_next_transno_waitq;
1115 /* protected by obd_recovery_task_lock */
1116 cfs_timer_t obd_recovery_timer;
1117 time_t obd_recovery_start; /* seconds */
1118 time_t obd_recovery_end; /* seconds, for lprocfs_status */
1119 int obd_recovery_time_hard;
1120 int obd_recovery_timeout;
1121 int obd_recovery_ir_factor;
1123 /* new recovery stuff from CMD2 */
1124 struct target_recovery_data obd_recovery_data;
1125 int obd_replayed_locks;
1126 cfs_atomic_t obd_req_replay_clients;
1127 cfs_atomic_t obd_lock_replay_clients;
1128 /* all lists are protected by obd_recovery_task_lock */
1129 cfs_list_t obd_req_replay_queue;
1130 cfs_list_t obd_lock_replay_queue;
1131 cfs_list_t obd_final_req_queue;
1132 int obd_recovery_stage;
1135 struct obd_device_target obt;
1136 struct filter_obd filter;
1138 struct client_obd cli;
1140 struct echo_client_obd echo_client;
1141 struct echo_obd echo;
1145 /* Fields used by LProcFS */
1146 unsigned int obd_cntr_base;
1147 struct lprocfs_stats *obd_stats;
1149 unsigned int md_cntr_base;
1150 struct lprocfs_stats *md_stats;
1152 cfs_proc_dir_entry_t *obd_proc_entry;
1153 cfs_proc_dir_entry_t *obd_proc_exports_entry;
1154 cfs_proc_dir_entry_t *obd_svc_procroot;
1155 struct lprocfs_stats *obd_svc_stats;
1156 cfs_atomic_t obd_evict_inprogress;
1157 cfs_waitq_t obd_evict_inprogress_waitq;
1158 cfs_list_t obd_evict_list; /* protected with pet_lock */
1161 * Ldlm pool part. Save last calculated SLV and Limit.
1163 cfs_rwlock_t obd_pool_lock;
1168 * A list of outstanding class_incref()'s against this obd. For
1171 struct lu_ref obd_reference;
1173 int obd_conn_inprogress;
1176 #define OBD_LLOG_FL_SENDNOW 0x0001
1177 #define OBD_LLOG_FL_EXIT 0x0002
1179 enum obd_cleanup_stage {
1180 /* Special case hack for MDS LOVs */
1182 /* can be directly mapped to .ldto_device_fini() */
1183 OBD_CLEANUP_EXPORTS,
1186 /* get/set_info keys */
1187 #define KEY_ASYNC "async"
1188 #define KEY_BLOCKSIZE_BITS "blocksize_bits"
1189 #define KEY_BLOCKSIZE "blocksize"
1190 #define KEY_CAPA_KEY "capa_key"
1191 #define KEY_CHANGELOG_CLEAR "changelog_clear"
1192 #define KEY_FID2PATH "fid2path"
1193 #define KEY_CHECKSUM "checksum"
1194 #define KEY_CLEAR_FS "clear_fs"
1195 #define KEY_CONN_DATA "conn_data"
1196 #define KEY_EVICT_BY_NID "evict_by_nid"
1197 #define KEY_FIEMAP "fiemap"
1198 #define KEY_FLUSH_CTX "flush_ctx"
1199 #define KEY_GRANT_SHRINK "grant_shrink"
1200 #define KEY_HSM_COPYTOOL_SEND "hsm_send"
1201 #define KEY_INIT_RECOV_BACKUP "init_recov_bk"
1202 #define KEY_INIT_RECOV "initial_recov"
1203 #define KEY_INTERMDS "inter_mds"
1204 #define KEY_LAST_ID "last_id"
1205 #define KEY_LOCK_TO_STRIPE "lock_to_stripe"
1206 #define KEY_LOVDESC "lovdesc"
1207 #define KEY_LOV_IDX "lov_idx"
1208 #define KEY_MAX_EASIZE "max_easize"
1209 #define KEY_MDS_CONN "mds_conn"
1210 #define KEY_MGSSEC "mgssec"
1211 #define KEY_NEXT_ID "next_id"
1212 #define KEY_READ_ONLY "read-only"
1213 #define KEY_REGISTER_TARGET "register_target"
1214 #define KEY_REVIMP_UPD "revimp_update"
1215 #define KEY_SET_FS "set_fs"
1216 #define KEY_TGT_COUNT "tgt_count"
1217 /* KEY_SET_INFO in lustre_idl.h */
1218 #define KEY_SPTLRPC_CONF "sptlrpc_conf"
1219 #define KEY_CONNECT_FLAG "connect_flags"
1220 #define KEY_SYNC_LOCK_CANCEL "sync_lock_cancel"
1224 /* /!\ must be coherent with include/linux/namei.h on patched kernel */
1225 #define IT_OPEN (1 << 0)
1226 #define IT_CREAT (1 << 1)
1227 #define IT_READDIR (1 << 2)
1228 #define IT_GETATTR (1 << 3)
1229 #define IT_LOOKUP (1 << 4)
1230 #define IT_UNLINK (1 << 5)
1231 #define IT_TRUNC (1 << 6)
1232 #define IT_GETXATTR (1 << 7)
1233 #define IT_EXEC (1 << 8)
1234 #define IT_PIN (1 << 9)
1235 #define IT_LAYOUT (1 << 10)
1236 #define IT_QUOTA_DQACQ (1 << 11)
1237 #define IT_QUOTA_CONN (1 << 12)
1239 static inline int it_to_lock_mode(struct lookup_intent *it)
1241 /* CREAT needs to be tested before open (both could be set) */
1242 if (it->it_op & IT_CREAT)
1244 else if (it->it_op & (IT_READDIR | IT_GETATTR | IT_OPEN | IT_LOOKUP |
1248 LASSERTF(0, "Invalid it_op: %d\n", it->it_op);
1253 struct lu_fid op_fid1; /* operation fid1 (usualy parent) */
1254 struct lu_fid op_fid2; /* operation fid2 (usualy child) */
1255 struct lu_fid op_fid3; /* 2 extra fids to find conflicting */
1256 struct lu_fid op_fid4; /* to the operation locks. */
1257 mdsno_t op_mds; /* what mds server open will go to */
1258 struct lustre_handle op_handle;
1259 obd_time op_mod_time;
1260 const char *op_name;
1263 struct lmv_stripe_md *op_mea1;
1264 struct lmv_stripe_md *op_mea2;
1265 __u32 op_suppgids[2];
1271 /* iattr fields and blocks. */
1272 struct iattr op_attr;
1274 unsigned int op_attr_flags;
1277 loff_t op_attr_blocks;
1279 /* Size-on-MDS epoch and flags. */
1284 struct obd_capa *op_capa1;
1285 struct obd_capa *op_capa2;
1287 /* Various operation flags. */
1290 /* Operation type */
1293 /* Used by readdir */
1298 struct md_enqueue_info;
1299 /* metadata stat-ahead */
1300 typedef int (* md_enqueue_cb_t)(struct ptlrpc_request *req,
1301 struct md_enqueue_info *minfo,
1304 struct md_enqueue_info {
1305 struct md_op_data mi_data;
1306 struct lookup_intent mi_it;
1307 struct lustre_handle mi_lockh;
1308 struct inode *mi_dir;
1309 md_enqueue_cb_t mi_cb;
1311 unsigned int mi_generation;
1315 cfs_module_t *o_owner;
1316 int (*o_iocontrol)(unsigned int cmd, struct obd_export *exp, int len,
1317 void *karg, void *uarg);
1318 int (*o_get_info)(const struct lu_env *env, struct obd_export *,
1319 __u32 keylen, void *key, __u32 *vallen, void *val,
1320 struct lov_stripe_md *lsm);
1321 int (*o_set_info_async)(const struct lu_env *, struct obd_export *,
1322 __u32 keylen, void *key,
1323 __u32 vallen, void *val,
1324 struct ptlrpc_request_set *set);
1325 int (*o_attach)(struct obd_device *dev, obd_count len, void *data);
1326 int (*o_detach)(struct obd_device *dev);
1327 int (*o_setup) (struct obd_device *dev, struct lustre_cfg *cfg);
1328 int (*o_precleanup)(struct obd_device *dev,
1329 enum obd_cleanup_stage cleanup_stage);
1330 int (*o_cleanup)(struct obd_device *dev);
1331 int (*o_process_config)(struct obd_device *dev, obd_count len,
1333 int (*o_postrecov)(struct obd_device *dev);
1334 int (*o_add_conn)(struct obd_import *imp, struct obd_uuid *uuid,
1336 int (*o_del_conn)(struct obd_import *imp, struct obd_uuid *uuid);
1337 /* connect to the target device with given connection
1338 * data. @ocd->ocd_connect_flags is modified to reflect flags actually
1339 * granted by the target, which are guaranteed to be a subset of flags
1340 * asked for. If @ocd == NULL, use default parameters. */
1341 int (*o_connect)(const struct lu_env *env,
1342 struct obd_export **exp, struct obd_device *src,
1343 struct obd_uuid *cluuid, struct obd_connect_data *ocd,
1345 int (*o_reconnect)(const struct lu_env *env,
1346 struct obd_export *exp, struct obd_device *src,
1347 struct obd_uuid *cluuid,
1348 struct obd_connect_data *ocd,
1350 int (*o_disconnect)(struct obd_export *exp);
1352 /* Initialize/finalize fids infrastructure. */
1353 int (*o_fid_init)(struct obd_export *exp);
1354 int (*o_fid_fini)(struct obd_export *exp);
1356 /* Allocate new fid according to passed @hint. */
1357 int (*o_fid_alloc)(struct obd_export *exp, struct lu_fid *fid,
1358 struct md_op_data *op_data);
1361 * Object with @fid is getting deleted, we may want to do something
1364 int (*o_fid_delete)(struct obd_export *exp, const struct lu_fid *fid);
1366 int (*o_statfs)(const struct lu_env *, struct obd_export *exp,
1367 struct obd_statfs *osfs, __u64 max_age, __u32 flags);
1368 int (*o_statfs_async)(struct obd_export *exp, struct obd_info *oinfo,
1369 __u64 max_age, struct ptlrpc_request_set *set);
1370 int (*o_packmd)(struct obd_export *exp, struct lov_mds_md **disk_tgt,
1371 struct lov_stripe_md *mem_src);
1372 int (*o_unpackmd)(struct obd_export *exp,struct lov_stripe_md **mem_tgt,
1373 struct lov_mds_md *disk_src, int disk_len);
1374 int (*o_preallocate)(struct lustre_handle *, obd_count *req,
1376 /* FIXME: add fid capability support for create & destroy! */
1377 int (*o_precreate)(struct obd_export *exp);
1378 int (*o_create)(const struct lu_env *env, struct obd_export *exp,
1379 struct obdo *oa, struct lov_stripe_md **ea,
1380 struct obd_trans_info *oti);
1381 int (*o_create_async)(struct obd_export *exp, struct obd_info *oinfo,
1382 struct lov_stripe_md **ea,
1383 struct obd_trans_info *oti);
1384 int (*o_destroy)(const struct lu_env *env, struct obd_export *exp,
1385 struct obdo *oa, struct lov_stripe_md *ea,
1386 struct obd_trans_info *oti, struct obd_export *md_exp,
1388 int (*o_setattr)(const struct lu_env *, struct obd_export *exp,
1389 struct obd_info *oinfo, struct obd_trans_info *oti);
1390 int (*o_setattr_async)(struct obd_export *exp, struct obd_info *oinfo,
1391 struct obd_trans_info *oti,
1392 struct ptlrpc_request_set *rqset);
1393 int (*o_getattr)(const struct lu_env *env, struct obd_export *exp,
1394 struct obd_info *oinfo);
1395 int (*o_getattr_async)(struct obd_export *exp, struct obd_info *oinfo,
1396 struct ptlrpc_request_set *set);
1397 int (*o_brw)(int rw, struct obd_export *exp, struct obd_info *oinfo,
1398 obd_count oa_bufs, struct brw_page *pgarr,
1399 struct obd_trans_info *oti);
1400 int (*o_merge_lvb)(struct obd_export *exp, struct lov_stripe_md *lsm,
1401 struct ost_lvb *lvb, int kms_only);
1402 int (*o_adjust_kms)(struct obd_export *exp, struct lov_stripe_md *lsm,
1403 obd_off size, int shrink);
1404 int (*o_punch)(const struct lu_env *, struct obd_export *exp,
1405 struct obd_info *oinfo, struct obd_trans_info *oti,
1406 struct ptlrpc_request_set *rqset);
1407 int (*o_sync)(const struct lu_env *env, struct obd_export *exp,
1408 struct obd_info *oinfo, obd_size start, obd_size end,
1409 struct ptlrpc_request_set *set);
1410 int (*o_migrate)(struct lustre_handle *conn, struct lov_stripe_md *dst,
1411 struct lov_stripe_md *src, obd_size start,
1412 obd_size end, struct obd_trans_info *oti);
1413 int (*o_copy)(struct lustre_handle *dstconn, struct lov_stripe_md *dst,
1414 struct lustre_handle *srconn, struct lov_stripe_md *src,
1415 obd_size start, obd_size end, struct obd_trans_info *);
1416 int (*o_iterate)(struct lustre_handle *conn,
1417 int (*)(obd_id, obd_seq, void *),
1418 obd_id *startid, obd_seq seq, void *data);
1419 int (*o_preprw)(const struct lu_env *env, int cmd,
1420 struct obd_export *exp, struct obdo *oa, int objcount,
1421 struct obd_ioobj *obj, struct niobuf_remote *remote,
1422 int *nr_pages, struct niobuf_local *local,
1423 struct obd_trans_info *oti, struct lustre_capa *capa);
1424 int (*o_commitrw)(const struct lu_env *env, int cmd,
1425 struct obd_export *exp, struct obdo *oa,
1426 int objcount, struct obd_ioobj *obj,
1427 struct niobuf_remote *remote, int pages,
1428 struct niobuf_local *local,
1429 struct obd_trans_info *oti, int rc);
1430 int (*o_enqueue)(struct obd_export *, struct obd_info *oinfo,
1431 struct ldlm_enqueue_info *einfo,
1432 struct ptlrpc_request_set *rqset);
1433 int (*o_change_cbdata)(struct obd_export *, struct lov_stripe_md *,
1434 ldlm_iterator_t it, void *data);
1435 int (*o_find_cbdata)(struct obd_export *, struct lov_stripe_md *,
1436 ldlm_iterator_t it, void *data);
1437 int (*o_cancel)(struct obd_export *, struct lov_stripe_md *md,
1438 __u32 mode, struct lustre_handle *);
1439 int (*o_cancel_unused)(struct obd_export *, struct lov_stripe_md *,
1440 ldlm_cancel_flags_t flags, void *opaque);
1441 int (*o_init_export)(struct obd_export *exp);
1442 int (*o_destroy_export)(struct obd_export *exp);
1443 int (*o_extent_calc)(struct obd_export *, struct lov_stripe_md *,
1444 int cmd, obd_off *);
1446 /* llog related obd_methods */
1447 int (*o_llog_init)(struct obd_device *obd, struct obd_llog_group *grp,
1448 struct obd_device *disk_obd, int *idx);
1449 int (*o_llog_finish)(struct obd_device *obd, int count);
1450 int (*o_llog_connect)(struct obd_export *, struct llogd_conn_body *);
1452 /* metadata-only methods */
1453 int (*o_pin)(struct obd_export *, const struct lu_fid *fid,
1454 struct obd_capa *, struct obd_client_handle *, int flag);
1455 int (*o_unpin)(struct obd_export *, struct obd_client_handle *, int);
1457 int (*o_import_event)(struct obd_device *, struct obd_import *,
1458 enum obd_import_event);
1460 int (*o_notify)(struct obd_device *obd, struct obd_device *watched,
1461 enum obd_notify_event ev, void *data);
1463 int (*o_health_check)(const struct lu_env *env, struct obd_device *);
1464 struct obd_uuid *(*o_get_uuid) (struct obd_export *exp);
1467 int (*o_quotacheck)(struct obd_device *, struct obd_export *,
1468 struct obd_quotactl *);
1469 int (*o_quotactl)(struct obd_device *, struct obd_export *,
1470 struct obd_quotactl *);
1472 int (*o_ping)(const struct lu_env *, struct obd_export *exp);
1475 int (*o_pool_new)(struct obd_device *obd, char *poolname);
1476 int (*o_pool_del)(struct obd_device *obd, char *poolname);
1477 int (*o_pool_add)(struct obd_device *obd, char *poolname,
1479 int (*o_pool_rem)(struct obd_device *obd, char *poolname,
1481 void (*o_getref)(struct obd_device *obd);
1482 void (*o_putref)(struct obd_device *obd);
1484 * NOTE: If adding ops, add another LPROCFS_OBD_OP_INIT() line
1485 * to lprocfs_alloc_obd_stats() in obdclass/lprocfs_status.c.
1486 * Also, add a wrapper function in include/linux/obd_class.h. */
1490 LUSTRE_OPC_MKDIR = (1 << 0),
1491 LUSTRE_OPC_SYMLINK = (1 << 1),
1492 LUSTRE_OPC_MKNOD = (1 << 2),
1493 LUSTRE_OPC_CREATE = (1 << 3),
1494 LUSTRE_OPC_ANY = (1 << 4)
1497 /* lmv structures */
1498 #define MEA_MAGIC_LAST_CHAR 0xb2221ca1
1499 #define MEA_MAGIC_ALL_CHARS 0xb222a11c
1500 #define MEA_MAGIC_HASH_SEGMENT 0xb222a11b
1502 #define MAX_HASH_SIZE_32 0x7fffffffUL
1503 #define MAX_HASH_SIZE 0x7fffffffffffffffULL
1504 #define MAX_HASH_HIGHEST_BIT 0x1000000000000000ULL
1507 struct mdt_body *body;
1508 struct lov_stripe_md *lsm;
1509 struct lmv_stripe_md *mea;
1510 #ifdef CONFIG_FS_POSIX_ACL
1511 struct posix_acl *posix_acl;
1513 struct mdt_remote_perm *remote_perm;
1514 struct obd_capa *mds_capa;
1515 struct obd_capa *oss_capa;
1518 struct md_open_data {
1519 struct obd_client_handle *mod_och;
1520 struct ptlrpc_request *mod_open_req;
1521 struct ptlrpc_request *mod_close_req;
1522 cfs_atomic_t mod_refcount;
1525 struct lookup_intent;
1528 int (*m_getstatus)(struct obd_export *, struct lu_fid *,
1529 struct obd_capa **);
1530 int (*m_change_cbdata)(struct obd_export *, const struct lu_fid *,
1531 ldlm_iterator_t, void *);
1532 int (*m_find_cbdata)(struct obd_export *, const struct lu_fid *,
1533 ldlm_iterator_t, void *);
1534 int (*m_close)(struct obd_export *, struct md_op_data *,
1535 struct md_open_data *, struct ptlrpc_request **);
1536 int (*m_create)(struct obd_export *, struct md_op_data *,
1537 const void *, int, int, __u32, __u32, cfs_cap_t,
1538 __u64, struct ptlrpc_request **);
1539 int (*m_done_writing)(struct obd_export *, struct md_op_data *,
1540 struct md_open_data *);
1541 int (*m_enqueue)(struct obd_export *, struct ldlm_enqueue_info *,
1542 struct lookup_intent *, struct md_op_data *,
1543 struct lustre_handle *, void *, int,
1544 struct ptlrpc_request **, int);
1545 int (*m_getattr)(struct obd_export *, struct md_op_data *,
1546 struct ptlrpc_request **);
1547 int (*m_getattr_name)(struct obd_export *, struct md_op_data *,
1548 struct ptlrpc_request **);
1549 int (*m_intent_lock)(struct obd_export *, struct md_op_data *,
1550 void *, int, struct lookup_intent *, int,
1551 struct ptlrpc_request **,
1552 ldlm_blocking_callback, int);
1553 int (*m_link)(struct obd_export *, struct md_op_data *,
1554 struct ptlrpc_request **);
1555 int (*m_rename)(struct obd_export *, struct md_op_data *,
1556 const char *, int, const char *, int,
1557 struct ptlrpc_request **);
1558 int (*m_is_subdir)(struct obd_export *, const struct lu_fid *,
1559 const struct lu_fid *,
1560 struct ptlrpc_request **);
1561 int (*m_setattr)(struct obd_export *, struct md_op_data *, void *,
1562 int , void *, int, struct ptlrpc_request **,
1563 struct md_open_data **mod);
1564 int (*m_sync)(struct obd_export *, const struct lu_fid *,
1565 struct obd_capa *, struct ptlrpc_request **);
1566 int (*m_readpage)(struct obd_export *, struct md_op_data *,
1567 struct page **, struct ptlrpc_request **);
1569 int (*m_unlink)(struct obd_export *, struct md_op_data *,
1570 struct ptlrpc_request **);
1572 int (*m_setxattr)(struct obd_export *, const struct lu_fid *,
1573 struct obd_capa *, obd_valid, const char *,
1574 const char *, int, int, int, __u32,
1575 struct ptlrpc_request **);
1577 int (*m_getxattr)(struct obd_export *, const struct lu_fid *,
1578 struct obd_capa *, obd_valid, const char *,
1579 const char *, int, int, int,
1580 struct ptlrpc_request **);
1582 int (*m_init_ea_size)(struct obd_export *, int, int, int);
1584 int (*m_get_lustre_md)(struct obd_export *, struct ptlrpc_request *,
1585 struct obd_export *, struct obd_export *,
1586 struct lustre_md *);
1588 int (*m_free_lustre_md)(struct obd_export *, struct lustre_md *);
1590 int (*m_set_open_replay_data)(struct obd_export *,
1591 struct obd_client_handle *,
1592 struct ptlrpc_request *);
1593 int (*m_clear_open_replay_data)(struct obd_export *,
1594 struct obd_client_handle *);
1595 int (*m_set_lock_data)(struct obd_export *, __u64 *, void *, __u64 *);
1597 ldlm_mode_t (*m_lock_match)(struct obd_export *, int,
1598 const struct lu_fid *, ldlm_type_t,
1599 ldlm_policy_data_t *, ldlm_mode_t,
1600 struct lustre_handle *);
1602 int (*m_cancel_unused)(struct obd_export *, const struct lu_fid *,
1603 ldlm_policy_data_t *, ldlm_mode_t,
1604 ldlm_cancel_flags_t flags, void *opaque);
1605 int (*m_renew_capa)(struct obd_export *, struct obd_capa *oc,
1606 renew_capa_cb_t cb);
1607 int (*m_unpack_capa)(struct obd_export *, struct ptlrpc_request *,
1608 const struct req_msg_field *, struct obd_capa **);
1610 int (*m_get_remote_perm)(struct obd_export *, const struct lu_fid *,
1611 struct obd_capa *, __u32,
1612 struct ptlrpc_request **);
1614 int (*m_intent_getattr_async)(struct obd_export *,
1615 struct md_enqueue_info *,
1616 struct ldlm_enqueue_info *);
1618 int (*m_revalidate_lock)(struct obd_export *, struct lookup_intent *,
1619 struct lu_fid *, __u64 *bits);
1622 * NOTE: If adding ops, add another LPROCFS_MD_OP_INIT() line to
1623 * lprocfs_alloc_md_stats() in obdclass/lprocfs_status.c. Also, add a
1624 * wrapper function in include/linux/obd_class.h.
1628 struct lsm_operations {
1629 void (*lsm_free)(struct lov_stripe_md *);
1630 int (*lsm_destroy)(struct lov_stripe_md *, struct obdo *oa,
1631 struct obd_export *md_exp);
1632 void (*lsm_stripe_by_index)(struct lov_stripe_md *, int *, obd_off *,
1634 void (*lsm_stripe_by_offset)(struct lov_stripe_md *, int *, obd_off *,
1636 int (*lsm_lmm_verify) (struct lov_mds_md *lmm, int lmm_bytes,
1637 __u16 *stripe_count);
1638 int (*lsm_unpackmd) (struct lov_obd *lov, struct lov_stripe_md *lsm,
1639 struct lov_mds_md *lmm);
1642 extern const struct lsm_operations lsm_v1_ops;
1643 extern const struct lsm_operations lsm_v3_ops;
1644 static inline const struct lsm_operations *lsm_op_find(int magic)
1652 CERROR("Cannot recognize lsm_magic %08x\n", magic);
1657 int lvfs_check_io_health(struct obd_device *obd, struct file *file);
1659 /* Requests for obd_extent_calc() */
1660 #define OBD_CALC_STRIPE_START 1
1661 #define OBD_CALC_STRIPE_END 2
1663 static inline void obd_transno_commit_cb(struct obd_device *obd, __u64 transno,
1664 struct obd_export *exp, int error)
1667 CERROR("%s: transno "LPU64" commit error: %d\n",
1668 obd->obd_name, transno, error);
1671 if (exp && transno > exp->exp_last_committed) {
1672 CDEBUG(D_HA, "%s: transno "LPU64" committed\n",
1673 obd->obd_name, transno);
1674 exp->exp_last_committed = transno;
1675 ptlrpc_commit_replies(exp);
1677 CDEBUG(D_INFO, "%s: transno "LPU64" committed\n",
1678 obd->obd_name, transno);
1680 if (transno > obd->obd_last_committed)
1681 obd->obd_last_committed = transno;
1684 static inline struct lustre_capa *oinfo_capa(struct obd_info *oinfo)
1686 return oinfo->oi_capa;
1689 static inline struct md_open_data *obd_mod_alloc(void)
1691 struct md_open_data *mod;
1695 cfs_atomic_set(&mod->mod_refcount, 1);
1699 #define obd_mod_get(mod) cfs_atomic_inc(&(mod)->mod_refcount)
1700 #define obd_mod_put(mod) \
1702 if (cfs_atomic_dec_and_test(&(mod)->mod_refcount)) { \
1703 if ((mod)->mod_open_req) \
1704 ptlrpc_req_finished((mod)->mod_open_req); \
1705 OBD_FREE_PTR(mod); \
1709 void obdo_from_inode(struct obdo *dst, struct inode *src, obd_flag valid);
1710 void obdo_set_parent_fid(struct obdo *dst, const struct lu_fid *parent);
1712 /* return 1 if client should be resend request */
1713 static inline int client_should_resend(int resend, struct client_obd *cli)
1715 return cfs_atomic_read(&cli->cl_resends) ?
1716 cfs_atomic_read(&cli->cl_resends) > resend : 1;
1720 * Return device name for this device
1722 * XXX: lu_device is declared before obd_device, while a pointer pointing
1723 * back to obd_device in lu_device, so this helper function defines here
1724 * instead of in lu_object.h
1726 static inline const char *lu_dev_name(const struct lu_device *lu_dev)
1728 return lu_dev->ld_obd->obd_name;
1731 #endif /* __OBD_H */