/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*- * vim:expandtab:shiftwidth=8:tabstop=8: * * Copyright (C) 2001, 2002 Cluster File Systems, Inc. * * This code is issued under the GNU General Public License. * See the file COPYING in this distribution */ #ifndef __OBD_H #define __OBD_H #define IOC_OSC_TYPE 'h' #define IOC_OSC_MIN_NR 20 #define IOC_OSC_SET_ACTIVE _IOWR(IOC_OSC_TYPE, 21, struct obd_device *) #define IOC_OSC_CTL_RECOVERY _IOWR(IOC_OSC_TYPE, 22, struct obd_device *) #define IOC_OSC_MAX_NR 50 #define IOC_MDC_TYPE 'i' #define IOC_MDC_MIN_NR 20 #define IOC_MDC_LOOKUP _IOWR(IOC_MDC_TYPE, 20, struct obd_device *) /* Moved to lustre_user.h #define IOC_MDC_GETSTRIPE _IOWR(IOC_MDC_TYPE, 21, struct lov_mds_md *) */ #define IOC_MDC_MAX_NR 50 #ifdef __KERNEL__ # include # include # include /* for struct task_struct, for current.h */ # include /* for smp_lock.h */ # include # include # include #endif #include #include #include #include /* this is really local to the OSC */ struct loi_oap_pages { struct list_head lop_pending; int lop_num_pending; struct list_head lop_urgent; struct list_head lop_pending_group; }; struct lov_oinfo { /* per-stripe data structure */ __u64 loi_id; /* object ID on the target OST */ __u64 loi_gr; /* object group on the target OST */ int loi_ost_idx; /* OST stripe index in lov_tgt_desc->tgts */ int loi_ost_gen; /* generation of this loi_ost_idx */ /* used by the osc to keep track of what objects to build into rpcs */ struct loi_oap_pages loi_read_lop; struct loi_oap_pages loi_write_lop; /* _cli_ is poorly named, it should be _ready_ */ struct list_head loi_cli_item; struct list_head loi_write_item; struct list_head loi_read_item; unsigned loi_kms_valid:1; __u64 loi_kms; /* known minimum size */ __u64 loi_rss; /* recently seen size */ __u64 loi_mtime; /* recently seen mtime */ __u64 loi_blocks; /* recently seen blocks */ }; static inline void loi_init(struct lov_oinfo *loi) { INIT_LIST_HEAD(&loi->loi_read_lop.lop_pending); INIT_LIST_HEAD(&loi->loi_read_lop.lop_urgent); INIT_LIST_HEAD(&loi->loi_read_lop.lop_pending_group); INIT_LIST_HEAD(&loi->loi_write_lop.lop_pending); INIT_LIST_HEAD(&loi->loi_write_lop.lop_urgent); INIT_LIST_HEAD(&loi->loi_write_lop.lop_pending_group); INIT_LIST_HEAD(&loi->loi_cli_item); INIT_LIST_HEAD(&loi->loi_write_item); INIT_LIST_HEAD(&loi->loi_read_item); } struct lov_stripe_md { /* Public members. */ __u64 lsm_object_id; /* lov object id */ __u64 lsm_object_gr; /* lov object id */ __u64 lsm_maxbytes; /* maximum possible file size */ unsigned long lsm_xfersize; /* optimal transfer size */ /* LOV-private members start here -- only for use in lov/. */ __u32 lsm_magic; __u32 lsm_stripe_size; /* size of the stripe */ __u32 lsm_pattern; /* striping pattern (RAID0, RAID1) */ unsigned lsm_stripe_count; /* number of objects being striped over */ struct lov_oinfo lsm_oinfo[0]; }; static inline void dump_lsm(int level, struct lov_stripe_md *lsm) { int i; CDEBUG(level, "objid "LPX64"/"LPU64", maxbytes "LPX64", magic 0x%08X, " "stripe_size %u, stripe_count %u\n", lsm->lsm_object_id, lsm->lsm_object_gr, lsm->lsm_maxbytes, lsm->lsm_magic, lsm->lsm_stripe_size, lsm->lsm_stripe_count); for (i = 0; i < lsm->lsm_stripe_count; i++) CDEBUG(level, "idx %u ostidx %u/%u object "LPU64"/"LPU64"\n", i, lsm->lsm_oinfo[i].loi_ost_idx, lsm->lsm_oinfo[i].loi_ost_gen, lsm->lsm_oinfo[i].loi_id, lsm->lsm_oinfo[i].loi_gr); } struct obd_type { struct list_head typ_chain; struct obd_ops *typ_ops; struct md_ops *typ_md_ops; struct proc_dir_entry *typ_procroot; char *typ_name; int typ_refcnt; }; struct brw_page { obd_off disk_offset; /* modulo PAGE_SIZE */ obd_off page_offset; /* modulo PAGE_SIZE (obviously) */ struct page *pg; int count; obd_flags flag; }; enum async_flags { ASYNC_READY = 0x1, /* ap_make_ready will not be called before this page is added to an rpc */ ASYNC_URGENT = 0x2, ASYNC_COUNT_STABLE = 0x4, /* ap_refresh_count will not be called to give the caller a chance to update or cancel the size of the io */ ASYNC_GROUP_SYNC = 0x8, /* ap_completion will not be called, instead the page is accounted for in the obd_io_group given to obd_queue_group_io */ }; struct obd_async_page_ops { int (*ap_make_ready)(void *data, int cmd); int (*ap_refresh_count)(void *data, int cmd); void (*ap_fill_obdo)(void *data, int cmd, struct obdo *oa); void (*ap_completion)(void *data, int cmd, struct obdo *oa, int rc); }; /* the `oig' is passed down from a caller of obd rw methods. the callee * records enough state such that the caller can sleep on the oig and * be woken when all the callees have finished their work */ struct obd_io_group { spinlock_t oig_lock; atomic_t oig_refcount; int oig_pending; int oig_rc; struct list_head oig_occ_list; wait_queue_head_t oig_waitq; }; /* the oig callback context lets the callee of obd rw methods register * for callbacks from the caller. */ struct oig_callback_context { struct list_head occ_oig_item; /* called when the caller has received a signal while sleeping. * callees of this method are encouraged to abort their state * in the oig. This may be called multiple times. */ void (*occ_interrupted)(struct oig_callback_context *occ); int interrupted; }; /* if we find more consumers this could be generalized */ #define OBD_HIST_MAX 32 struct obd_histogram { spinlock_t oh_lock; unsigned long oh_buckets[OBD_HIST_MAX]; }; /* reports average service time with the help of lprocfs_status.c */ struct obd_service_time { __u32 st_num; __u64 st_total_us; }; struct ost_server_data; #define FILTER_SUBDIR_COUNT 32 /* set to zero for no subdirs */ #define FILTER_GROUP_LLOG 1 #define FILTER_GROUP_ECHO 2 #define FILTER_GROUP_FIRST_MDS 3 struct filter_subdirs { struct dentry *dentry[FILTER_SUBDIR_COUNT]; }; struct filter_group_llog { struct list_head list; int group; struct obd_llogs *llogs; struct obd_export *exp; }; struct filter_obd { const char *fo_fstype; struct super_block *fo_sb; struct vfsmount *fo_vfsmnt; struct lvfs_obd_ctxt *fo_lvfs_ctxt; int fo_group_count; struct dentry *fo_dentry_O; /* the "O"bject directory dentry */ struct dentry **fo_groups; /* dentries for each group dir */ struct filter_subdirs *fo_subdirs; /* subdir array per group */ __u64 *fo_last_objids; /* per-group last created objid */ struct file **fo_last_objid_files; struct semaphore fo_init_lock; /* group initialization lock */ int fo_committed_group; spinlock_t fo_objidlock; /* protect fo_lastobjid increment */ spinlock_t fo_translock; /* protect fsd_last_rcvd increment */ struct file *fo_rcvd_filp; struct filter_server_data *fo_fsd; unsigned long *fo_last_rcvd_slots; __u64 fo_mount_count; unsigned long fo_destroys_in_progress; struct semaphore fo_create_locks[32]; struct file_operations *fo_fop; struct inode_operations *fo_iop; struct address_space_operations *fo_aops; struct list_head fo_export_list; int fo_subdir_count; obd_size fo_tot_dirty; /* protected by obd_osfs_lock */ obd_size fo_tot_granted; /* all values in bytes */ obd_size fo_tot_pending; obd_size fo_readcache_max_filesize; struct obd_import *fo_mdc_imp; struct obd_uuid fo_mdc_uuid; struct lustre_handle fo_mdc_conn; struct semaphore fo_alloc_lock; struct obd_histogram fo_r_pages; struct obd_histogram fo_w_pages; struct obd_histogram fo_r_discont_pages; struct obd_histogram fo_w_discont_pages; struct obd_histogram fo_r_discont_blocks; struct obd_histogram fo_w_discont_blocks; struct list_head fo_llog_list; spinlock_t fo_llog_list_lock; /* which secure flavor from remote is denied */ spinlock_t fo_denylist_lock; struct list_head fo_denylist; }; struct mds_server_data; #define OSC_MAX_RIF_DEFAULT 8 #define OSC_MAX_RIF_MAX 64 #define OSC_MAX_DIRTY_DEFAULT (4*OSC_MAX_RIF_DEFAULT*PTLRPC_MAX_BRW_SIZE>>20) #define OSC_MAX_DIRTY_MB_MAX 512 /* totally arbitrary */ struct mdc_rpc_lock; struct client_obd { struct obd_import *cl_import; struct semaphore cl_sem; int cl_conn_count; /* max_mds_easize is purely a performance thing so we don't have to * call obd_size_wiremd() all the time. */ int cl_max_mds_easize; int cl_max_mds_cookiesize; kdev_t cl_sandev; /* security flavors */ __u32 cl_sec_flavor; __u32 cl_sec_subflavor; //struct llog_canceld_ctxt *cl_llcd; /* it's included by obd_llog_ctxt */ void *cl_llcd_offset; struct obd_device *cl_mgmtcli_obd; /* the grant values are protected by loi_list_lock below */ long cl_dirty; /* all _dirty_ in bytes */ long cl_dirty_max; /* allowed w/o rpc */ long cl_avail_grant; /* bytes of credit for ost */ long cl_lost_grant; /* lost credits (trunc) */ struct list_head cl_cache_waiters; /* waiting for cache/grant */ /* keep track of objects that have lois that contain pages which * have been queued for async brw. this lock also protects the * lists of osc_client_pages that hang off of the loi */ spinlock_t cl_loi_list_lock; struct list_head cl_loi_ready_list; struct list_head cl_loi_write_list; struct list_head cl_loi_read_list; int cl_r_in_flight; int cl_w_in_flight; /* just a sum of the loi/lop pending numbers to be exported by /proc */ int cl_pending_w_pages; int cl_pending_r_pages; int cl_max_pages_per_rpc; int cl_max_rpcs_in_flight; struct obd_histogram cl_read_rpc_hist; struct obd_histogram cl_write_rpc_hist; struct obd_histogram cl_read_page_hist; struct obd_histogram cl_write_page_hist; struct obd_service_time cl_read_stime; struct obd_service_time cl_write_stime; struct obd_service_time cl_enter_stime; struct mdc_rpc_lock *cl_rpc_lock; struct mdc_rpc_lock *cl_setattr_lock; struct mdc_rpc_lock *cl_close_lock; struct osc_creator cl_oscc; int cl_async:1; }; /* Like a client, with some hangers-on. Keep mc_client_obd first so that we * can reuse the various client setup/connect functions. */ struct mgmtcli_obd { struct client_obd mc_client_obd; /* nested */ struct ptlrpc_thread *mc_ping_thread; struct obd_export *mc_ping_exp; /* XXX single-target */ struct list_head mc_registered; void *mc_hammer; }; #define mc_import mc_client_obd.cl_import struct mds_obd { struct ptlrpc_service *mds_service; struct ptlrpc_service *mds_setattr_service; struct ptlrpc_service *mds_readpage_service; struct super_block *mds_sb; struct vfsmount *mds_vfsmnt; struct dentry *mds_id_de; struct lvfs_obd_ctxt *mds_lvfs_ctxt; int mds_max_mdsize; int mds_max_cookiesize; struct file *mds_rcvd_filp; struct file *mds_fid_filp; struct file *mds_virtid_filp; spinlock_t mds_transno_lock; __u64 mds_last_transno; __u64 mds_mount_count; __u64 mds_io_epoch; __u64 mds_last_fid; __u64 mds_virtid_fid; spinlock_t mds_last_fid_lock; struct semaphore mds_epoch_sem; struct lustre_id mds_rootid; struct mds_server_data *mds_server_data; struct dentry *mds_pending_dir; struct dentry *mds_logs_dir; struct dentry *mds_objects_dir; struct llog_handle *mds_cfg_llh; char *mds_profile; struct obd_device *mds_dt_obd; struct obd_uuid mds_dt_uuid; struct obd_export *mds_dt_exp; int mds_has_dt_desc; struct lov_desc mds_dt_desc; spinlock_t mds_dt_lock; obd_id *mds_dt_objids; struct file *mds_dt_objid_filp; int mds_dt_objids_valid; unsigned long *mds_client_bitmap; struct semaphore mds_orphan_recovery_sem; int mds_num; int mds_config_version; char *mds_md_name; struct obd_device *mds_md_obd; struct obd_export *mds_md_exp; struct semaphore mds_md_sem; struct obd_uuid mds_md_uuid; int mds_md_connected; struct ptlrpc_service *mds_create_service; uid_t mds_squash_uid; gid_t mds_squash_gid; ptl_nid_t mds_nosquash_nid; atomic_t mds_real_clients; atomic_t mds_open_count; struct dentry *mds_id_dir; int mds_obd_type; struct dentry *mds_unnamed_dir; /* for mdt_obd_create only */ /* security related */ char *mds_mds_sec; char *mds_ost_sec; /* which secure flavor from remote to this mds is denied */ spinlock_t mds_denylist_lock; struct list_head mds_denylist; struct semaphore mds_create_sem; }; struct echo_obd { struct obdo eo_oa; spinlock_t eo_lock; __u64 eo_lastino; struct lustre_handle eo_nl_lock; atomic_t eo_prep; }; /* * this struct does double-duty acting as either a client or * server instance .. maybe not wise. */ struct ptlbd_obd { /* server's */ struct ptlrpc_service *ptlbd_service; struct file *filp; /* client's */ struct ptlrpc_client bd_client; struct obd_import *bd_import; struct obd_uuid bd_server_uuid; struct obd_export *bd_exp; int refcount; /* XXX sigh */ }; struct recovd_obd { spinlock_t recovd_lock; struct list_head recovd_managed_items; /* items managed */ struct list_head recovd_troubled_items; /* items in recovery */ wait_queue_head_t recovd_recovery_waitq; wait_queue_head_t recovd_ctl_waitq; wait_queue_head_t recovd_waitq; struct task_struct *recovd_thread; __u32 recovd_state; }; struct ost_obd { spinlock_t ost_lock; struct ptlrpc_service *ost_service; struct ptlrpc_service *ost_create_service; struct obd_service_time ost_stimes[6]; }; struct echo_client_obd { struct obd_export *ec_exp; /* the local connection to osc/lov */ spinlock_t ec_lock; struct list_head ec_objects; int ec_nstripes; __u64 ec_unique; }; struct cache_obd { struct obd_export *master_exp; /* local connection to master obd */ struct obd_export *cache_exp; /* local connection to cache obd */ struct obd_export *cache_real_exp; struct obd_export *master_real_exp; struct obd_device *master; struct obd_device *cache; char *master_name; char *cache_name; int refcount; int cache_on; struct semaphore sem; }; struct cm_obd { struct obd_export *cache_exp; /* local connection to cache obd */ struct obd_export *master_exp; struct obd_device *cache_obd; struct obd_device *master_obd; int master_group; struct cmobd_write_service *write_srv; }; struct conf_obd { struct super_block *cfobd_sb; struct vfsmount *cfobd_vfsmnt; struct dentry *cfobd_logs_dir; struct dentry *cfobd_objects_dir; struct dentry *cfobd_pending_dir; struct llog_handle *cfobd_cfg_llh; struct lvfs_obd_ctxt *cfobd_lvfs_ctxt; }; struct lov_tgt_desc { struct obd_uuid uuid; __u32 ltd_gen; struct obd_export *ltd_exp; int active; /* is this target up for requests */ }; struct lov_obd { spinlock_t lov_lock; struct lov_desc desc; int bufsize; int refcount; int lo_catalog_loaded:1, async:1; struct semaphore lov_llog_sem; unsigned long lov_connect_flags; struct lov_tgt_desc *tgts; }; struct lmv_tgt_desc { struct obd_uuid uuid; struct obd_export *ltd_exp; int active; /* is this target up for requests */ }; struct lmv_obd { int refcount; spinlock_t lmv_lock; struct lmv_desc desc; struct lmv_tgt_desc *tgts; struct obd_uuid cluuid; struct obd_export *exp; int tgts_size; int connected; int max_easize; int max_cookiesize; int server_timeout; int connect_flags; struct semaphore init_sem; struct obd_connect_data conn_data; }; struct niobuf_local { __u64 offset; __u32 len; __u32 flags; struct page *page; struct dentry *dentry; int lnb_grant_used; int rc; }; #define OBD_MODE_ASYNC (1 << 0) #define OBD_MODE_CROW (1 << 1) /* Don't conflict with on-wire flags OBD_BRW_WRITE, etc */ #define N_LOCAL_TEMP_PAGE 0x10000000 struct obd_trans_info { __u64 oti_transno; __u64 *oti_objid; /* only used on the server side for tracking acks. */ struct oti_req_ack_lock { struct lustre_handle lock; __u32 mode; } oti_ack_locks[4]; void *oti_handle; struct llog_cookie oti_onecookie; struct llog_cookie *oti_logcookies; int oti_numcookies; int oti_flags; }; static inline void oti_alloc_cookies(struct obd_trans_info *oti,int num_cookies) { if (!oti) return; if (num_cookies == 1) oti->oti_logcookies = &oti->oti_onecookie; else OBD_ALLOC(oti->oti_logcookies, num_cookies * sizeof(oti->oti_onecookie)); oti->oti_numcookies = num_cookies; } static inline void oti_free_cookies(struct obd_trans_info *oti) { if (!oti || !oti->oti_logcookies) return; if (oti->oti_logcookies == &oti->oti_onecookie) LASSERT(oti->oti_numcookies == 1); else OBD_FREE(oti->oti_logcookies, oti->oti_numcookies * sizeof(oti->oti_onecookie)); oti->oti_logcookies = NULL; oti->oti_numcookies = 0; } /* llog contexts */ enum llog_ctxt_id { LLOG_CONFIG_ORIG_CTXT = 0, LLOG_CONFIG_REPL_CTXT = 1, LLOG_UNLINK_ORIG_CTXT = 2, LLOG_UNLINK_REPL_CTXT = 3, LLOG_SIZE_ORIG_CTXT = 4, LLOG_SIZE_REPL_CTXT = 5, LLOG_MD_ORIG_CTXT = 6, LLOG_MD_REPL_CTXT = 7, LLOG_RD1_ORIG_CTXT = 8, LLOG_RD1_REPL_CTXT = 9, LLOG_TEST_ORIG_CTXT = 10, LLOG_TEST_REPL_CTXT = 11, LLOG_REINT_ORIG_CTXT = 12, LLOG_MAX_CTXTS }; struct obd_llogs { struct llog_ctxt *llog_ctxt[LLOG_MAX_CTXTS]; }; struct target_recovery_data { svc_handler_t trd_recovery_handler; pid_t trd_processing_task; struct completion trd_starting; struct completion trd_finishing; }; /* corresponds to one of the obd's */ struct obd_device { struct obd_type *obd_type; /* common and UUID name of this device */ char *obd_name; struct obd_uuid obd_uuid; int obd_minor; unsigned int obd_attached:1, obd_set_up:1, obd_recovering:1, obd_abort_recovery:1, obd_replayable:1, obd_no_transno:1, obd_no_recov:1, obd_stopping:1; atomic_t obd_refcount; wait_queue_head_t obd_refcount_waitq; struct proc_dir_entry *obd_proc_entry; struct list_head obd_exports; int obd_num_exports; struct ldlm_namespace *obd_namespace; struct ptlrpc_client obd_ldlm_client; /* XXX OST/MDS only */ /* a spinlock is OK for what we do now, may need a semaphore later */ spinlock_t obd_dev_lock; __u64 obd_last_committed; struct fsfilt_operations *obd_fsops; spinlock_t obd_osfs_lock; struct obd_statfs obd_osfs; unsigned long obd_osfs_age; struct lvfs_run_ctxt obd_lvfs_ctxt; struct obd_llogs obd_llogs; struct llog_ctxt *obd_llog_ctxt[LLOG_MAX_CTXTS]; struct obd_device *obd_observer; struct obd_export *obd_self_export; struct target_recovery_data obd_recovery_data; /* XXX encapsulate all this recovery data into target_recovery_data */ int obd_max_recoverable_clients; int obd_connected_clients; int obd_recoverable_clients; spinlock_t obd_processing_task_lock; __u64 obd_next_recovery_transno; int obd_replayed_requests; int obd_replayed_locks; int obd_requests_queued_for_recovery; wait_queue_head_t obd_next_transno_waitq; struct list_head obd_uncommitted_replies; spinlock_t obd_uncommitted_replies_lock; struct timer_list obd_recovery_timer; time_t obd_recovery_start; time_t obd_recovery_end; atomic_t obd_req_replay_clients; atomic_t obd_lock_replay_clients; struct list_head obd_req_replay_queue; struct list_head obd_lock_replay_queue; struct list_head obd_final_req_queue; int obd_recovery_stage; union { struct filter_obd filter; struct mds_obd mds; struct client_obd cli; struct ost_obd ost; struct echo_client_obd echocli; struct echo_obd echo; struct recovd_obd recovd; struct lov_obd lov; struct cache_obd cobd; struct ptlbd_obd ptlbd; struct mgmtcli_obd mgmtcli; struct lmv_obd lmv; struct cm_obd cm; struct conf_obd conf; } u; /* fields used by LProcFS */ unsigned int obd_cntr_base; struct lprocfs_stats *obd_stats; unsigned int md_cntr_base; struct lprocfs_stats *md_stats; struct proc_dir_entry *obd_svc_procroot; struct lprocfs_stats *obd_svc_stats; }; #define OBD_OPT_FORCE (1 << 0) #define OBD_OPT_FAILOVER (1 << 1) #define OBD_OPT_REAL_CLIENT (1 << 2) #define OBD_OPT_MDS_CONNECTION (1 << 3) #define OBD_LLOG_FL_SENDNOW (1 << 0) #define OBD_LLOG_FL_CREATE (1 << 1) struct mdc_op_data; struct obd_ops { struct module *o_owner; int (*o_iocontrol)(unsigned int cmd, struct obd_export *exp, int len, void *karg, void *uarg); int (*o_get_info)(struct obd_export *, __u32 keylen, void *key, __u32 *vallen, void *val); int (*o_set_info)(struct obd_export *, __u32 keylen, void *key, __u32 vallen, void *val); int (*o_attach)(struct obd_device *dev, obd_count len, void *data); int (*o_detach)(struct obd_device *dev); int (*o_setup) (struct obd_device *dev, obd_count len, void *data); int (*o_precleanup)(struct obd_device *dev, int flags); int (*o_cleanup)(struct obd_device *dev, int flags); int (*o_process_config)(struct obd_device *dev, obd_count len, void *data); int (*o_postrecov)(struct obd_device *dev); int (*o_add_conn)(struct obd_import *imp, struct obd_uuid *uuid, int priority); int (*o_del_conn)(struct obd_import *imp, struct obd_uuid *uuid); int (*o_connect)(struct lustre_handle *conn, struct obd_device *src, struct obd_uuid *cluuid, struct obd_connect_data *data, unsigned long flags); int (*o_connect_post)(struct obd_export *exp, unsigned, unsigned long); int (*o_disconnect)(struct obd_export *exp, unsigned long flags); int (*o_statfs)(struct obd_device *obd, struct obd_statfs *osfs, unsigned long max_age); int (*o_packmd)(struct obd_export *exp, struct lov_mds_md **disk_tgt, struct lov_stripe_md *mem_src); int (*o_unpackmd)(struct obd_export *exp,struct lov_stripe_md **mem_tgt, struct lov_mds_md *disk_src, int disk_len); int (*o_revalidate_md)(struct obd_export *exp, struct obdo *oa, struct lov_stripe_md *ea, struct obd_trans_info *oti); int (*o_preallocate)(struct lustre_handle *, obd_count *req, obd_id *ids); int (*o_create)(struct obd_export *exp, struct obdo *oa, void *acl, int acl_size, struct lov_stripe_md **ea, struct obd_trans_info *oti); int (*o_destroy)(struct obd_export *exp, struct obdo *oa, struct lov_stripe_md *ea, struct obd_trans_info *oti); int (*o_setattr)(struct obd_export *exp, struct obdo *oa, struct lov_stripe_md *ea, struct obd_trans_info *oti); int (*o_getattr)(struct obd_export *exp, struct obdo *oa, struct lov_stripe_md *ea); int (*o_getattr_async)(struct obd_export *exp, struct obdo *oa, struct lov_stripe_md *ea, struct ptlrpc_request_set *set); int (*o_brw)(int rw, struct obd_export *exp, struct obdo *oa, struct lov_stripe_md *ea, obd_count oa_bufs, struct brw_page *pgarr, struct obd_trans_info *oti); int (*o_brw_async)(int rw, struct obd_export *exp, struct obdo *oa, struct lov_stripe_md *ea, obd_count oa_bufs, struct brw_page *pgarr, struct ptlrpc_request_set *, struct obd_trans_info *oti); int (*o_prep_async_page)(struct obd_export *exp, struct lov_stripe_md *lsm, struct lov_oinfo *loi, struct page *page, obd_off offset, struct obd_async_page_ops *ops, void *data, void **res); int (*o_queue_async_io)(struct obd_export *exp, struct lov_stripe_md *lsm, struct lov_oinfo *loi, void *cookie, int cmd, obd_off off, int count, obd_flags brw_flags, obd_flags async_flags); int (*o_queue_group_io)(struct obd_export *exp, struct lov_stripe_md *lsm, struct lov_oinfo *loi, struct obd_io_group *oig, void *cookie, int cmd, obd_off off, int count, obd_flags brw_flags, obd_flags async_flags); int (*o_trigger_group_io)(struct obd_export *exp, struct lov_stripe_md *lsm, struct lov_oinfo *loi, struct obd_io_group *oig); int (*o_set_async_flags)(struct obd_export *exp, struct lov_stripe_md *lsm, struct lov_oinfo *loi, void *cookie, obd_flags async_flags); int (*o_teardown_async_page)(struct obd_export *exp, struct lov_stripe_md *lsm, struct lov_oinfo *loi, void *cookie); int (*o_adjust_kms)(struct obd_export *exp, struct lov_stripe_md *lsm, obd_off size, int shrink); int (*o_punch)(struct obd_export *exp, struct obdo *oa, struct lov_stripe_md *ea, obd_size start, obd_size end, struct obd_trans_info *oti); int (*o_sync)(struct obd_export *exp, struct obdo *oa, struct lov_stripe_md *ea, obd_size start, obd_size end); int (*o_migrate)(struct lustre_handle *conn, struct lov_stripe_md *dst, struct lov_stripe_md *src, obd_size start, obd_size end, struct obd_trans_info *oti); int (*o_copy)(struct lustre_handle *dstconn, struct lov_stripe_md *dst, struct lustre_handle *srconn, struct lov_stripe_md *src, obd_size start, obd_size end, struct obd_trans_info *); int (*o_iterate)(struct lustre_handle *conn, int (*)(obd_id, obd_gr, void *), obd_id *startid, obd_gr group, void *data); int (*o_preprw)(int cmd, struct obd_export *exp, struct obdo *oa, int objcount, struct obd_ioobj *obj, int niocount, struct niobuf_remote *remote, struct niobuf_local *local, struct obd_trans_info *oti); int (*o_commitrw)(int cmd, struct obd_export *exp, struct obdo *oa, int objcount, struct obd_ioobj *obj, int niocount, struct niobuf_local *local, struct obd_trans_info *oti, int rc); int (*o_do_cow)(struct obd_export *exp, struct obd_ioobj *obj, int objcount, struct niobuf_remote *rnb); int (*o_write_extents)(struct obd_export *exp, struct obd_ioobj *obj, int objcount, int niocount, struct niobuf_local *local,int rc); int (*o_enqueue)(struct obd_export *, struct lov_stripe_md *, __u32 type, ldlm_policy_data_t *, __u32 mode, int *flags, void *bl_cb, void *cp_cb, void *gl_cb, void *data, __u32 lvb_len, void *lvb_swabber, struct lustre_handle *lockh); int (*o_match)(struct obd_export *, struct lov_stripe_md *, __u32 type, ldlm_policy_data_t *, __u32 mode, int *flags, void *data, struct lustre_handle *lockh); int (*o_change_cbdata)(struct obd_export *, struct lov_stripe_md *, ldlm_iterator_t it, void *data); int (*o_cancel)(struct obd_export *, struct lov_stripe_md *md, __u32 mode, struct lustre_handle *); int (*o_cancel_unused)(struct obd_export *, struct lov_stripe_md *, int flags, void *opaque); int (*o_san_preprw)(int cmd, struct obd_export *exp, struct obdo *oa, int objcount, struct obd_ioobj *obj, int niocount, struct niobuf_remote *remote); int (*o_init_export)(struct obd_export *exp); int (*o_destroy_export)(struct obd_export *exp); /* llog related obd_methods */ int (*o_llog_init)(struct obd_device *, struct obd_llogs *, struct obd_device *, int, struct llog_catid *); int (*o_llog_finish)(struct obd_device *, struct obd_llogs *, int); int (*o_llog_connect)(struct obd_export *, struct llogd_conn_body *); /* metadata-only methods */ int (*o_pin)(struct obd_export *, obd_id ino, __u32 gen, int type, struct obd_client_handle *, int flag); int (*o_unpin)(struct obd_export *, struct obd_client_handle *, int); int (*o_import_event)(struct obd_device *, struct obd_import *, enum obd_import_event); int (*o_notify)(struct obd_device *obd, struct obd_device *watched, int active, void *data); /* this method is needed for cmobd to make say to LMV "get ready" when * master obd is LMV. This is needed, because LMV is initialized in * "defered" manner to let all MDSs to be set up first. */ int (*o_getready)(struct obd_export *exp); int (*o_init_ea_size)(struct obd_export *, int, int); /* * NOTE: If adding ops, add another LPROCFS_OBD_OP_INIT() line * to lprocfs_alloc_obd_stats() in obdclass/lprocfs_status.c. * Also, add a wrapper function in include/linux/obd_class.h. */ }; struct md_ops { int (*m_getstatus)(struct obd_export *, struct lustre_id *); int (*m_change_cbdata)(struct obd_export *, struct lustre_id *, ldlm_iterator_t, void *); int (*m_change_cbdata_name)(struct obd_export *, struct lustre_id *, char *, int, struct lustre_id *, ldlm_iterator_t, void *); int (*m_close)(struct obd_export *, struct obdo *, struct obd_client_handle *, struct ptlrpc_request **); int (*m_create)(struct obd_export *, struct mdc_op_data *, const void *, int, int, __u32, __u32, __u64, struct ptlrpc_request **); int (*m_done_writing)(struct obd_export *, struct obdo *); int (*m_enqueue)(struct obd_export *, int, struct lookup_intent *, int, struct mdc_op_data *, struct lustre_handle *, void *, int, ldlm_completion_callback, ldlm_blocking_callback, void *); int (*m_getattr)(struct obd_export *, struct lustre_id *, __u64, const char *, int, unsigned int, struct ptlrpc_request **); int (*m_getattr_lock)(struct obd_export *, struct lustre_id *, char *, int, __u64, unsigned int, struct ptlrpc_request **); int (*m_intent_lock)(struct obd_export *, struct lustre_id *, const char *, int, void *, int, struct lustre_id *, struct lookup_intent *, int, struct ptlrpc_request **, ldlm_blocking_callback); int (*m_link)(struct obd_export *, struct mdc_op_data *, struct ptlrpc_request **); int (*m_rename)(struct obd_export *, struct mdc_op_data *, const char *, int, const char *, int, struct ptlrpc_request **); int (*m_setattr)(struct obd_export *, struct mdc_op_data *, struct iattr *, void *, int , void *, int, struct ptlrpc_request **); int (*m_sync)(struct obd_export *, struct lustre_id *, struct ptlrpc_request **); int (*m_readpage)(struct obd_export *, struct lustre_id *, __u64, struct page *, struct ptlrpc_request **); int (*m_unlink)(struct obd_export *, struct mdc_op_data *, struct ptlrpc_request **); int (*m_valid_attrs)(struct obd_export *, struct lustre_id *); struct obd_device *(*m_get_real_obd)(struct obd_export *, struct lustre_id *); int (*m_req2lustre_md)(struct obd_export *exp, struct ptlrpc_request *req, unsigned int offset, struct obd_export *osc_exp, struct lustre_md *md); int (*m_set_open_replay_data)(struct obd_export *exp, struct obd_client_handle *och, struct ptlrpc_request *open_req); int (*m_clear_open_replay_data)(struct obd_export *exp, struct obd_client_handle *och); int (*m_store_inode_generation)(struct obd_export *exp, struct ptlrpc_request *req, int reqoff, int repoff); int (*m_set_lock_data)(struct obd_export *exp, __u64 *l, void *data); int (*m_delete_inode)(struct obd_export *, struct lustre_id *); /* * NOTE: If adding ops, add another LPROCFS_MD_OP_INIT() line to * lprocfs_alloc_md_stats() in obdclass/lprocfs_status.c. Also, add a * wrapper function in include/linux/obd_class.h. */ }; static inline void obd_transno_commit_cb(struct obd_device *obd, __u64 transno, int error) { if (error) { CERROR("%s: transno "LPD64" commit error: %d\n", obd->obd_name, transno, error); return; } CDEBUG(D_HA, "%s: transno "LPD64" committed\n", obd->obd_name, transno); if (transno > obd->obd_last_committed) { obd->obd_last_committed = transno; ptlrpc_commit_replies (obd); } } #endif /* __OBD_H */