X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Flov%2Flov_internal.h;h=a8711e022acee70cdf5cc753ed3964260a8eadcc;hb=0e9d2dcba5333c484a8bf7b168dd83f4109bfbf3;hp=3d944bc5c574774d25e34f841864b37ff5b04a2a;hpb=41edf631c7b44563bb2e2d07bf8e347efa876a7a;p=fs%2Flustre-release.git diff --git a/lustre/lov/lov_internal.h b/lustre/lov/lov_internal.h index 3d944bc..a8711e0 100644 --- a/lustre/lov/lov_internal.h +++ b/lustre/lov/lov_internal.h @@ -20,30 +20,34 @@ struct lov_lock_handles { }; struct lov_request { + struct obd_info rq_oi; + struct lov_request_set *rq_rqset; + struct list_head rq_link; - struct ldlm_extent rq_extent; + int rq_idx; /* index in lov->tgts array */ - int rq_gen; /* lov target generation # */ int rq_stripe; /* stripe number */ int rq_complete; int rq_rc; int rq_buflen; /* length of sub_md */ - struct obdo *rq_oa; - struct lov_stripe_md *rq_md; + obd_count rq_oabufs; obd_count rq_pgaidx; }; struct lov_request_set { + struct obd_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 lov_stripe_md *set_md; - struct obdo *set_oa; struct obd_trans_info *set_oti; obd_count set_oabufs; struct brw_page *set_pga; @@ -51,126 +55,25 @@ struct lov_request_set { struct list_head set_list; }; -#define LAP_MAGIC 8200 - -#define LOV_MAX_TGT_COUNT 1024 - -#define lov_tgts_lock(lov) spin_lock(&lov->lov_lock); -#define lov_tgts_unlock(lov) spin_unlock(&lov->lov_lock); - -static inline void -lov_tgt_set_flags(struct lov_obd *lov, struct lov_tgt_desc *tgt, int flags) -{ - lov_tgts_lock(lov); - if ((flags & LTD_ACTIVE) && ((tgt->ltd_flags & LTD_ACTIVE) == 0)) - lov->desc.ld_active_tgt_count++; - tgt->ltd_flags |= flags; - lov_tgts_unlock(lov); -} - -static inline void -lov_tgt_clear_flags(struct lov_obd *lov, struct lov_tgt_desc *tgt, int flags) -{ - ENTRY; - - lov_tgts_lock(lov); - if ((flags & LTD_ACTIVE) && (tgt->ltd_flags & LTD_ACTIVE)) - lov->desc.ld_active_tgt_count--; - tgt->ltd_flags &= ~flags; - lov_tgts_unlock(lov); - EXIT; -} - -static inline int -lov_tgt_changed(struct lov_obd *lov, struct lov_oinfo *loi) -{ - int changed; - - lov_tgts_lock(lov); - changed = lov->tgts[loi->loi_ost_idx].ltd_gen != loi->loi_ost_gen; - lov_tgts_unlock(lov); - - return changed; -} - -static inline int -lov_tgt_active(struct lov_obd *lov, struct lov_tgt_desc *tgt, int gen) -{ - int rc = 0; - lov_tgts_lock(lov); - - if (((gen == 0) || (gen == tgt->ltd_gen)) && - ((tgt->ltd_flags &(LTD_ACTIVE|LTD_DEL_PENDING)) == LTD_ACTIVE)) { - tgt->ltd_refcount++; - rc = 1; - } - - lov_tgts_unlock(lov); - return rc; -} - -static inline int -lov_tgt_ready(struct lov_obd *lov, struct lov_tgt_desc *tgt, int gen) -{ - int rc = 0; - - lov_tgts_lock(lov); - - if (((gen == 0) || (gen == tgt->ltd_gen)) && - (tgt->ltd_flags & LTD_ACTIVE)) { - tgt->ltd_refcount++; - rc = 1; - } - - lov_tgts_unlock(lov); - return rc; -} - -static inline int -lov_tgt_valid(struct lov_obd *lov, struct lov_tgt_desc *tgt, int gen) -{ - int rc = 0; - lov_tgts_lock(lov); - - if (((gen == 0) || (gen == tgt->ltd_gen)) && (tgt->ltd_exp != NULL)) { - tgt->ltd_refcount++; - rc = 1; - } - - lov_tgts_unlock(lov); - return rc; -} - -static inline void -lov_tgt_decref(struct lov_obd *lov, struct lov_tgt_desc *tgt) -{ - int do_wakeup = 0; - - lov_tgts_lock(lov); - - if ((--tgt->ltd_refcount == 0) && (tgt->ltd_flags & LTD_DEL_PENDING)) { - do_wakeup = 1; - } - - lov_tgts_unlock(lov); - if (do_wakeup) - wake_up(&lov->lov_tgt_waitq); -} +#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; void *lap_caller_data; - obd_id lap_loi_id; }; -#define LAP_FROM_COOKIE(c) \ - (LASSERT(((struct lov_async_page *)(c))->lap_magic == LAP_MAGIC), \ +#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; @@ -185,11 +88,11 @@ static inline struct lov_lock_handles *lov_llh_new(struct lov_stripe_md *lsm) OBD_ALLOC(llh, sizeof *llh + sizeof(*llh->llh_handles) * lsm->lsm_stripe_count); - if (llh == NULL) + if (llh == NULL) return NULL; atomic_set(&llh->llh_refcount, 2); llh->llh_stripe_count = lsm->lsm_stripe_count; - INIT_LIST_HEAD(&llh->llh_handle.h_link); + CFS_INIT_LIST_HEAD(&llh->llh_handle.h_link); class_handle_hash(&llh->llh_handle, lov_llh_addref); return llh; } @@ -209,20 +112,30 @@ static inline void lov_llh_put(struct lov_lock_handles *llh) atomic_read(&llh->llh_refcount) < 0x5a5a); if (atomic_dec_and_test(&llh->llh_refcount)) { class_handle_unhash(&llh->llh_handle); - LASSERT(list_empty(&llh->llh_handle.h_link)); - OBD_FREE(llh, sizeof *llh + - sizeof(*llh->llh_handles) * llh->llh_stripe_count); + /* 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_flags valid, +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, +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); @@ -234,79 +147,94 @@ int lov_stripe_intersects(struct lov_stripe_md *lsm, int stripeno, 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 lov_obd *lov, struct lov_request_set *set, - int newea); +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); -int lov_update_common_set(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 lov_stripe_md **ea, - struct obdo *src_oa, struct obd_trans_info *oti, +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 obdo *src_oa, - struct lov_stripe_md *lsm, obd_count oa_bufs, - struct brw_page *pga, struct obd_trans_info *oti, +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 obdo *src_oa, - struct lov_stripe_md *lsm, +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 obdo *src_oa, - struct lov_stripe_md *lsm, - struct obd_trans_info *oti, +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 obdo *src_oa, - struct lov_stripe_md *lsm, struct obd_trans_info *oti, +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 obdo *src_oa, - struct lov_stripe_md *lsm, obd_off start, - obd_off end, struct obd_trans_info *oti, +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_update_punch_set(struct lov_request_set *set, struct lov_request *req, - int rc); int lov_fini_punch_set(struct lov_request_set *set); -int lov_prep_sync_set(struct obd_export *exp, struct obdo *src_oa, +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 lov_stripe_md *lsm, - ldlm_policy_data_t *policy, __u32 mode, - struct lustre_handle *lockh, +int lov_prep_enqueue_set(struct obd_export *exp, struct obd_info *oinfo, + struct obd_enqueue_info *einfo, struct lov_request_set **reqset); -int lov_update_enqueue_set(struct lov_request_set *set, - struct lov_request *req, int rc, int flags); -int lov_fini_enqueue_set(struct lov_request_set *set, __u32 mode); -int lov_prep_match_set(struct obd_export *exp, struct lov_stripe_md *lsm, +int lov_fini_enqueue_set(struct lov_request_set *set, __u32 mode, int rc); +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 lov_stripe_md *lsm, +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 */ +void lov_fix_desc(struct lov_desc *desc); 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_getref(struct obd_device *obd); +void lov_putref(struct obd_device *obd); /* lov_log.c */ -int lov_llog_init(struct obd_device *, struct obd_llogs *, - struct obd_device *, int, struct llog_catid *); -int lov_llog_finish(struct obd_device *, struct obd_llogs *, int); +int lov_llog_init(struct obd_device *obd, struct obd_llogs *llogs, + 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 */ int lov_packmd(struct obd_export *exp, struct lov_mds_md **lmm, @@ -319,7 +247,22 @@ 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;