X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Flov%2Flov_internal.h;h=9981ed87db547810887bb172e3efc5b95a7e3650;hp=6c26a166744eec2dac6ca7cb0b78f3ed67042e00;hb=b5bf04fb27d8e3e455aec024d8b908a10434519f;hpb=c5050e412572b00cbe93d8517d2d1f767bebfa92 diff --git a/lustre/lov/lov_internal.h b/lustre/lov/lov_internal.h index 6c26a16..9981ed8 100644 --- a/lustre/lov/lov_internal.h +++ b/lustre/lov/lov_internal.h @@ -10,28 +10,235 @@ #ifndef LOV_INTERNAL_H #define LOV_INTERNAL_H -#include +#include -#define LAP_MAGIC 8200 +struct lov_lock_handles { + struct portals_handle llh_handle; + atomic_t llh_refcount; + int llh_stripe_count; + struct lustre_handle llh_handles[0]; +}; + +struct lov_request { + struct obd_info rq_oi; + struct lov_request_set *rq_rqset; + + struct list_head rq_link; + + int rq_idx; /* index in lov->tgts array */ + int rq_stripe; /* stripe number */ + int rq_complete; + int rq_rc; + int rq_buflen; /* length of sub_md */ + + obd_count rq_oabufs; + obd_count rq_pgaidx; +}; + +struct lov_request_set { + struct ldlm_enqueue_info*set_ei; + struct obd_info *set_oi; + atomic_t set_refcount; + struct obd_export *set_exp; + /* XXX: There is @set_exp already, however obd_statfs gets obd_device + only. */ + struct obd_device *set_obd; + int set_count; + int set_completes; + int set_success; + struct llog_cookie *set_cookies; + int set_cookie_sent; + struct obd_trans_info *set_oti; + obd_count set_oabufs; + struct brw_page *set_pga; + struct lov_lock_handles *set_lockh; + struct list_head set_list; +}; + +#define LOV_AP_MAGIC 8200 struct lov_async_page { int lap_magic; int lap_stripe; obd_off lap_sub_offset; + obd_id lap_loi_id; + obd_gr lap_loi_gr; void *lap_sub_cookie; struct obd_async_page_ops *lap_caller_ops; - struct obd_async_page_ops *lap_caller_data; - obd_id lap_loi_id; + void *lap_caller_data; }; +#define LAP_FROM_COOKIE(c) \ + (LASSERT(((struct lov_async_page *)(c))->lap_magic == LOV_AP_MAGIC), \ + (struct lov_async_page *)(c)) + +extern cfs_mem_cache_t *lov_oinfo_slab; + +static inline void lov_llh_addref(void *llhp) +{ + struct lov_lock_handles *llh = llhp; + atomic_inc(&llh->llh_refcount); + CDEBUG(D_INFO, "GETting llh %p : new refcount %d\n", llh, + atomic_read(&llh->llh_refcount)); +} + +static inline struct lov_lock_handles *lov_llh_new(struct lov_stripe_md *lsm) +{ + struct lov_lock_handles *llh; + + OBD_ALLOC(llh, sizeof *llh + + sizeof(*llh->llh_handles) * lsm->lsm_stripe_count); + if (llh == NULL) + return NULL; + atomic_set(&llh->llh_refcount, 2); + llh->llh_stripe_count = lsm->lsm_stripe_count; + CFS_INIT_LIST_HEAD(&llh->llh_handle.h_link); + class_handle_hash(&llh->llh_handle, lov_llh_addref); + return llh; +} + +static inline struct lov_lock_handles * +lov_handle2llh(struct lustre_handle *handle) +{ + LASSERT(handle != NULL); + return(class_handle2object(handle->cookie)); +} + +static inline void lov_llh_put(struct lov_lock_handles *llh) +{ + CDEBUG(D_INFO, "PUTting llh %p : new refcount %d\n", llh, + atomic_read(&llh->llh_refcount) - 1); + LASSERT(atomic_read(&llh->llh_refcount) > 0 && + atomic_read(&llh->llh_refcount) < 0x5a5a); + if (atomic_dec_and_test(&llh->llh_refcount)) { + class_handle_unhash(&llh->llh_handle); + /* The structure may be held by other threads because RCU. + * -jxiong */ + if (atomic_read(&llh->llh_refcount)) + return; + + OBD_FREE_RCU(llh, sizeof *llh + + sizeof(*llh->llh_handles) * llh->llh_stripe_count, + &llh->llh_handle); + } +} + +#define lov_uuid2str(lv, index) \ + (char *)((lv)->lov_tgts[index]->ltd_uuid.uuid) + +/* lov_merge.c */ +void lov_merge_attrs(struct obdo *tgt, struct obdo *src, obd_flag valid, + struct lov_stripe_md *lsm, int stripeno, int *set); +int lov_merge_lvb(struct obd_export *exp, struct lov_stripe_md *lsm, + struct ost_lvb *lvb, int kms_only); +int lov_adjust_kms(struct obd_export *exp, struct lov_stripe_md *lsm, + obd_off size, int shrink); + +/* lov_offset.c */ +obd_size lov_stripe_size(struct lov_stripe_md *lsm, obd_size ost_size, + int stripeno); +int lov_stripe_offset(struct lov_stripe_md *lsm, obd_off lov_off, + int stripeno, obd_off *obd_off); +obd_off lov_size_to_stripe(struct lov_stripe_md *lsm, obd_off file_size, + int stripeno); +int lov_stripe_intersects(struct lov_stripe_md *lsm, int stripeno, + obd_off start, obd_off end, + obd_off *obd_start, obd_off *obd_end); +int lov_stripe_number(struct lov_stripe_md *lsm, obd_off lov_off); + +/* lov_qos.c */ +#define LOV_USES_ASSIGNED_STRIPE 0 +#define LOV_USES_DEFAULT_STRIPE 1 +int qos_add_tgt(struct obd_device *obd, __u32 index); +int qos_del_tgt(struct obd_device *obd, __u32 index); +void qos_shrink_lsm(struct lov_request_set *set); +int qos_prep_create(struct obd_export *exp, struct lov_request_set *set); +void qos_update(struct lov_obd *lov); +int qos_remedy_create(struct lov_request_set *set, struct lov_request *req); + +/* lov_request.c */ +void lov_set_add_req(struct lov_request *req, struct lov_request_set *set); +void lov_update_set(struct lov_request_set *set, + struct lov_request *req, int rc); +int lov_update_common_set(struct lov_request_set *set, + struct lov_request *req, int rc); +int lov_prep_create_set(struct obd_export *exp, struct obd_info *oifo, + struct lov_stripe_md **ea, struct obdo *src_oa, + struct obd_trans_info *oti, + struct lov_request_set **reqset); +int lov_update_create_set(struct lov_request_set *set, + struct lov_request *req, int rc); +int lov_fini_create_set(struct lov_request_set *set, struct lov_stripe_md **ea); +int lov_prep_brw_set(struct obd_export *exp, struct obd_info *oinfo, + obd_count oa_bufs, struct brw_page *pga, + struct obd_trans_info *oti, + struct lov_request_set **reqset); +int lov_fini_brw_set(struct lov_request_set *set); +int lov_prep_getattr_set(struct obd_export *exp, struct obd_info *oinfo, + struct lov_request_set **reqset); +int lov_fini_getattr_set(struct lov_request_set *set); +int lov_prep_destroy_set(struct obd_export *exp, struct obd_info *oinfo, + struct obdo *src_oa, struct lov_stripe_md *lsm, + struct obd_trans_info *oti, + struct lov_request_set **reqset); +int lov_update_destroy_set(struct lov_request_set *set, + struct lov_request *req, int rc); +int lov_fini_destroy_set(struct lov_request_set *set); +int lov_prep_setattr_set(struct obd_export *exp, struct obd_info *oinfo, + struct obd_trans_info *oti, + struct lov_request_set **reqset); +int lov_update_setattr_set(struct lov_request_set *set, + struct lov_request *req, int rc); +int lov_fini_setattr_set(struct lov_request_set *set); +int lov_prep_punch_set(struct obd_export *exp, struct obd_info *oinfo, + struct obd_trans_info *oti, + struct lov_request_set **reqset); +int lov_fini_punch_set(struct lov_request_set *set); +int lov_prep_sync_set(struct obd_export *exp, struct obd_info *obd_info, + struct obdo *src_oa, + struct lov_stripe_md *lsm, obd_off start, + obd_off end, struct lov_request_set **reqset); +int lov_fini_sync_set(struct lov_request_set *set); +int lov_prep_enqueue_set(struct obd_export *exp, struct obd_info *oinfo, + struct ldlm_enqueue_info *einfo, + struct lov_request_set **reqset); +int lov_fini_enqueue_set(struct lov_request_set *set, __u32 mode, int rc, + struct ptlrpc_request_set *rqset); +int lov_prep_match_set(struct obd_export *exp, struct obd_info *oinfo, + struct lov_stripe_md *lsm, + ldlm_policy_data_t *policy, __u32 mode, + struct lustre_handle *lockh, + struct lov_request_set **reqset); +int lov_update_match_set(struct lov_request_set *set, struct lov_request *req, + int rc); +int lov_fini_match_set(struct lov_request_set *set, __u32 mode, int flags); +int lov_prep_cancel_set(struct obd_export *exp, struct obd_info *oinfo, + struct lov_stripe_md *lsm, + __u32 mode, struct lustre_handle *lockh, + struct lov_request_set **reqset); +int lov_fini_cancel_set(struct lov_request_set *set); +int lov_prep_statfs_set(struct obd_device *obd, struct obd_info *oinfo, + struct lov_request_set **reqset); +void lov_update_statfs(struct obd_device *obd, struct obd_statfs *osfs, + struct obd_statfs *lov_sfs, int success); +int lov_fini_statfs(struct obd_device *obd, struct obd_statfs *osfs, + int success); +int lov_fini_statfs_set(struct lov_request_set *set); + /* lov_obd.c */ -int lov_get_stripecnt(struct lov_obd *lov, int stripe_count); -int lov_alloc_memmd(struct lov_stripe_md **lsmp, int stripe_count, int pattern); -void lov_free_memmd(struct lov_stripe_md **lsmp); +void lov_fix_desc(struct lov_desc *desc); +void lov_fix_desc_stripe_size(__u64 *val); +void lov_fix_desc_stripe_count(__u32 *val); +void lov_fix_desc_pattern(__u32 *val); +void lov_fix_desc_qos_maxage(__u32 *val); +int lov_get_stripecnt(struct lov_obd *lov, __u32 stripe_count); +void lov_getref(struct obd_device *obd); +void lov_putref(struct obd_device *obd); /* lov_log.c */ -int lov_llog_init(struct obd_device *obd, struct obd_device *tgt, - int count, struct llog_logid *logid); +int lov_llog_init(struct obd_device *obd, int group, + struct obd_device *tgt, int count, struct llog_catid *logid, + struct obd_uuid *uuid); int lov_llog_finish(struct obd_device *obd, int count); /* lov_pack.c */ @@ -41,10 +248,35 @@ int lov_unpackmd(struct obd_export *exp, struct lov_stripe_md **lsmp, struct lov_mds_md *lmm, int lmm_bytes); int lov_setstripe(struct obd_export *exp, struct lov_stripe_md **lsmp, struct lov_user_md *lump); +int lov_setea(struct obd_export *exp, struct lov_stripe_md **lsmp, + struct lov_user_md *lump); int lov_getstripe(struct obd_export *exp, struct lov_stripe_md *lsm, struct lov_user_md *lump); +int lov_alloc_memmd(struct lov_stripe_md **lsmp, int stripe_count, + int pattern, int magic); +void lov_free_memmd(struct lov_stripe_md **lsmp); + +void lov_dump_lmm_v1(int level, struct lov_mds_md_v1 *lmm); +void lov_dump_lmm_join(int level, struct lov_mds_md_join *lmmj); +/* lov_ea.c */ +int lov_unpackmd_join(struct lov_obd *lov, struct lov_stripe_md *lsm, + struct lov_mds_md *lmm); +struct lov_stripe_md *lsm_alloc_plain(int stripe_count, int *size); +void lsm_free_plain(struct lov_stripe_md *lsm); +struct lov_extent *lovea_idx2le(struct lov_stripe_md *lsm, int stripe_no); +struct lov_extent *lovea_off2le(struct lov_stripe_md *lsm, obd_off lov_off); +int lovea_destroy_object(struct lov_obd *lov, struct lov_stripe_md *lsm, + struct obdo *oa, void *data); /* lproc_lov.c */ extern struct file_operations lov_proc_target_fops; +#ifdef LPROCFS +void lprocfs_lov_init_vars(struct lprocfs_static_vars *lvars); +#else +static inline void lprocfs_lov_init_vars(struct lprocfs_static_vars *lvars) +{ + memset(lvars, 0, sizeof(*lvars)); +} +#endif #endif