X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Fofd%2Fofd_internal.h;h=b5563cf6360774a06cd5c97b8281a14fd17e921c;hp=db2a5b4fdd22f0f303a7d3ddc5308b79e1c24d23;hb=47b457491889278ef17f7dc4c72435e313829bdd;hpb=87d06d8213b9bdb3dfa5d145e992ae24a3d1c5e4 diff --git a/lustre/ofd/ofd_internal.h b/lustre/ofd/ofd_internal.h index db2a5b4f..b5563cf 100644 --- a/lustre/ofd/ofd_internal.h +++ b/lustre/ofd/ofd_internal.h @@ -41,6 +41,7 @@ #include #include #include +#include #include #define OFD_INIT_OBJID 0 @@ -49,6 +50,10 @@ OBD_INCOMPAT_COMMON_LR) #define OFD_MAX_GROUPS 256 +/* Limit the returned fields marked valid to those that we actually might set */ +#define OFD_VALID_FLAGS (LA_TYPE | LA_MODE | LA_SIZE | LA_BLOCKS | \ + LA_BLKSIZE | LA_ATIME | LA_MTIME | LA_CTIME) + /* per-client-per-object persistent state (LRU) */ struct ofd_mod_data { cfs_list_t fmd_list; /* linked to fed_mod_list */ @@ -74,6 +79,9 @@ struct ofd_device { /* DLM name-space for meta-data locks maintained by this server */ struct ldlm_namespace *ofd_namespace; + /* transaction callbacks */ + struct dt_txn_callback ofd_txn_cb; + /* last_rcvd file */ struct lu_target ofd_lut; struct dt_object *ofd_last_group_file; @@ -86,6 +94,40 @@ struct ofd_device { cfs_mutex_t ofd_create_locks[OFD_MAX_GROUPS]; struct dt_object *ofd_lastid_obj[OFD_MAX_GROUPS]; cfs_spinlock_t ofd_objid_lock; + unsigned long ofd_destroys_in_progress; + + /* protect all statfs-related counters */ + cfs_spinlock_t ofd_osfs_lock; + /* statfs optimization: we cache a bit */ + struct obd_statfs ofd_osfs; + __u64 ofd_osfs_age; + int ofd_blockbits; + /* writes which might be be accounted twice in ofd_osfs.os_bavail */ + obd_size ofd_osfs_unstable; + + /* counters used during statfs update, protected by ofd_osfs_lock. + * record when some statfs refresh are in progress */ + int ofd_statfs_inflight; + /* track writes completed while statfs refresh is underway. + * tracking is only effective when ofd_statfs_inflight > 1 */ + obd_size ofd_osfs_inflight; + + /* grants: all values in bytes */ + /* grant lock to protect all grant counters */ + cfs_spinlock_t ofd_grant_lock; + /* total amount of dirty data reported by clients in incoming obdo */ + obd_size ofd_tot_dirty; + /* sum of filesystem space granted to clients for async writes */ + obd_size ofd_tot_granted; + /* grant used by I/Os in progress (between prepare and commit) */ + obd_size ofd_tot_pending; + /* free space threshold over which we stop granting space to clients + * ofd_grant_ratio is stored as a fixed-point fraction using + * OFD_GRANT_RATIO_SHIFT of the remaining free space, not in percentage + * values */ + int ofd_grant_ratio; + /* number of clients using grants */ + int ofd_tot_granted_clients; /* ofd mod data: ofd_device wide values */ int ofd_fmd_max_num; /* per ofd ofd_mod_data */ @@ -96,7 +138,10 @@ struct ofd_device { /* sync journal on writes */ ofd_syncjournal:1, /* sync on lock cancel */ - ofd_sync_lock_cancel:2; + ofd_sync_lock_cancel:2, + /* shall we grant space to clients not + * supporting OBD_CONNECT_GRANT_PARAM? */ + ofd_grant_compat_disable:1; struct lu_site ofd_site; }; @@ -122,8 +167,9 @@ static inline char *ofd_name(struct ofd_device *ofd) } struct ofd_object { - struct lu_object_header ofo_header; + struct lu_object_header ofo_header; struct dt_object ofo_obj; + int ofo_ff_exists; }; static inline struct ofd_object *ofd_obj(struct lu_object *o) @@ -131,6 +177,70 @@ static inline struct ofd_object *ofd_obj(struct lu_object *o) return container_of0(o, struct ofd_object, ofo_obj.do_lu); } +static inline int ofd_object_exists(struct ofd_object *obj) +{ + LASSERT(obj != NULL); + if (lu_object_is_dying(obj->ofo_obj.do_lu.lo_header)) + return 0; + return lu_object_exists(&obj->ofo_obj.do_lu); +} + +static inline struct dt_object *fo2dt(struct ofd_object *obj) +{ + return &obj->ofo_obj; +} + +static inline struct dt_object *ofd_object_child(struct ofd_object *_obj) +{ + struct lu_object *lu = &(_obj)->ofo_obj.do_lu; + + return container_of0(lu_object_next(lu), struct dt_object, do_lu); +} + +static inline struct ofd_device *ofd_obj2dev(const struct ofd_object *fo) +{ + return ofd_dev(fo->ofo_obj.do_lu.lo_dev); +} + +static inline struct lustre_capa *ofd_object_capa(const struct lu_env *env, + const struct ofd_object *obj) +{ + /* TODO: see mdd_object_capa() */ + return BYPASS_CAPA; +} + +static inline void ofd_read_lock(const struct lu_env *env, + struct ofd_object *fo) +{ + struct dt_object *next = ofd_object_child(fo); + + next->do_ops->do_read_lock(env, next, 0); +} + +static inline void ofd_read_unlock(const struct lu_env *env, + struct ofd_object *fo) +{ + struct dt_object *next = ofd_object_child(fo); + + next->do_ops->do_read_unlock(env, next); +} + +static inline void ofd_write_lock(const struct lu_env *env, + struct ofd_object *fo) +{ + struct dt_object *next = ofd_object_child(fo); + + next->do_ops->do_write_lock(env, next, 0); +} + +static inline void ofd_write_unlock(const struct lu_env *env, + struct ofd_object *fo) +{ + struct dt_object *next = ofd_object_child(fo); + + next->do_ops->do_write_unlock(env, next); +} + /* * Common data shared by obdofd-level handlers. This is allocated per-thread * to reduce stack consumption. @@ -139,16 +249,33 @@ struct ofd_thread_info { const struct lu_env *fti_env; struct obd_export *fti_exp; + __u64 fti_xid; + __u64 fti_transno; + __u64 fti_pre_version; + __u32 fti_has_trans:1, /* has txn already */ + fti_mult_trans:1; + struct lu_fid fti_fid; struct lu_attr fti_attr; + struct lu_attr fti_attr2; + struct ldlm_res_id fti_resid; + struct filter_fid fti_mds_fid; + struct filter_fid fti_mds_fid2; + struct ost_id fti_ostid; + struct ofd_object *fti_obj; union { char name[64]; /* for ofd_init0() */ struct obd_statfs osfs; /* for obdofd_statfs() */ } fti_u; + /* Ops object filename */ + struct lu_name fti_name; struct dt_object_format fti_dof; struct lu_buf fti_buf; loff_t fti_off; + + /* Space used by the I/O, used by grant code */ + unsigned long fti_used; }; extern void target_recovery_fini(struct obd_device *obd); @@ -165,19 +292,126 @@ extern struct lu_context_key ofd_thread_key; /* ofd_obd.c */ extern struct obd_ops ofd_obd_ops; +int ofd_statfs_internal(const struct lu_env *env, struct ofd_device *ofd, + struct obd_statfs *osfs, __u64 max_age, + int *from_cache); /* ofd_fs.c */ obd_id ofd_last_id(struct ofd_device *ofd, obd_seq seq); +void ofd_last_id_set(struct ofd_device *ofd, obd_id id, obd_seq seq); +int ofd_last_id_write(const struct lu_env *env, struct ofd_device *ofd, + obd_seq seq); int ofd_group_load(const struct lu_env *env, struct ofd_device *ofd, int); int ofd_fs_setup(const struct lu_env *env, struct ofd_device *ofd, struct obd_device *obd); void ofd_fs_cleanup(const struct lu_env *env, struct ofd_device *ofd); +/* ofd_io.c */ +int ofd_preprw(const struct lu_env *env,int cmd, struct obd_export *exp, + struct obdo *oa, int objcount, struct obd_ioobj *obj, + struct niobuf_remote *rnb, int *nr_local, + struct niobuf_local *lnb, struct obd_trans_info *oti, + struct lustre_capa *capa); +int ofd_commitrw(const struct lu_env *env, int cmd, struct obd_export *exp, + struct obdo *oa, int objcount, struct obd_ioobj *obj, + struct niobuf_remote *rnb, int npages, + struct niobuf_local *lnb, struct obd_trans_info *oti, + int old_rc); + +/* ofd_trans.c */ +struct thandle *ofd_trans_create(const struct lu_env *env, + struct ofd_device *ofd); +int ofd_trans_start(const struct lu_env *env, + struct ofd_device *ofd, struct ofd_object *fo, + struct thandle *th); +void ofd_trans_stop(const struct lu_env *env, struct ofd_device *ofd, + struct thandle *th, int rc); +int ofd_txn_stop_cb(const struct lu_env *env, struct thandle *txn, + void *cookie); + /* lproc_ofd.c */ void lprocfs_ofd_init_vars(struct lprocfs_static_vars *lvars); int lproc_ofd_attach_seqstat(struct obd_device *dev); extern struct file_operations ofd_per_nid_stats_fops; +/* ofd_objects.c */ +struct ofd_object *ofd_object_find(const struct lu_env *env, + struct ofd_device *ofd, + const struct lu_fid *fid); +struct ofd_object *ofd_object_find_or_create(const struct lu_env *env, + struct ofd_device *ofd, + const struct lu_fid *fid, + struct lu_attr *attr); +int ofd_object_ff_check(const struct lu_env *env, struct ofd_object *fo); +int ofd_precreate_object(const struct lu_env *env, struct ofd_device *ofd, + obd_id id, obd_seq seq); + +void ofd_object_put(const struct lu_env *env, struct ofd_object *fo); +int ofd_attr_set(const struct lu_env *env, struct ofd_object *fo, + struct lu_attr *la, struct filter_fid *ff); +int ofd_object_punch(const struct lu_env *env, struct ofd_object *fo, + __u64 start, __u64 end, struct lu_attr *la, + struct filter_fid *ff); +int ofd_object_destroy(const struct lu_env *, struct ofd_object *, int); +int ofd_attr_get(const struct lu_env *env, struct ofd_object *fo, + struct lu_attr *la); +int ofd_attr_handle_ugid(const struct lu_env *env, struct ofd_object *fo, + struct lu_attr *la, int is_setattr); + +/* ofd_grants.c */ +#define OFD_GRANT_RATIO_SHIFT 8 +static inline __u64 ofd_grant_reserved(struct ofd_device *ofd, obd_size bavail) +{ + return (bavail * ofd->ofd_grant_ratio) >> OFD_GRANT_RATIO_SHIFT; +} + +static inline int ofd_grant_ratio_conv(int percentage) +{ + return (percentage << OFD_GRANT_RATIO_SHIFT) / 100; +} + +static inline int ofd_grant_param_supp(struct obd_export *exp) +{ + return !!(exp->exp_connect_flags & OBD_CONNECT_GRANT_PARAM); +} + +/* Blocksize used for client not supporting OBD_CONNECT_GRANT_PARAM. + * That's 4KB=2^12 which is the biggest block size known to work whatever + * the client's page size is. */ +#define COMPAT_BSIZE_SHIFT 12 +static inline int ofd_grant_compat(struct obd_export *exp, + struct ofd_device *ofd) +{ + /* Clients which don't support OBD_CONNECT_GRANT_PARAM cannot handle + * a block size > page size and consume CFS_PAGE_SIZE of grant when + * dirtying a page regardless of the block size */ + return !!(ofd_obd(ofd)->obd_self_export != exp && + ofd->ofd_blockbits > COMPAT_BSIZE_SHIFT && + !ofd_grant_param_supp(exp)); +} + +static inline int ofd_grant_prohibit(struct obd_export *exp, + struct ofd_device *ofd) +{ + /* When ofd_grant_compat_disable is set, we don't grant any space to + * clients not supporting OBD_CONNECT_GRANT_PARAM. + * Otherwise, space granted to such a client is inflated since it + * consumes CFS_PAGE_SIZE of grant space per block */ + return !!(ofd_grant_compat(exp, ofd) && ofd->ofd_grant_compat_disable); +} + +void ofd_grant_sanity_check(struct obd_device *obd, const char *func); +long ofd_grant_connect(const struct lu_env *env, struct obd_export *exp, + obd_size want); +void ofd_grant_discard(struct obd_export *exp); +void ofd_grant_prepare_read(const struct lu_env *env, struct obd_export *exp, + struct obdo *oa); +void ofd_grant_prepare_write(const struct lu_env *env, struct obd_export *exp, + struct obdo *oa, struct niobuf_remote *rnb, + int niocount); +void ofd_grant_commit(const struct lu_env *env, struct obd_export *exp, int rc); +int ofd_grant_create(const struct lu_env *env, struct obd_export *exp, int *nr); + /* ofd_fmd.c */ int ofd_fmd_init(void); void ofd_fmd_exit(void); @@ -194,6 +428,14 @@ void ofd_fmd_drop(struct obd_export *exp, struct lu_fid *fid); #define ofd_fmd_drop(exp, fid) do {} while (0) #endif +/* ofd_lvb.c */ +extern struct ldlm_valblock_ops ofd_lvbo; + +/* ofd_dlm.c */ +int ofd_intent_policy(struct ldlm_namespace *ns, struct ldlm_lock **lockp, + void *req_cookie, ldlm_mode_t mode, int flags, + void *data); + static inline struct ofd_thread_info * ofd_info(const struct lu_env *env) { struct ofd_thread_info *info; @@ -214,12 +456,69 @@ static inline struct ofd_thread_info * ofd_info_init(const struct lu_env *env, LASSERT(info); LASSERT(info->fti_exp == NULL); LASSERT(info->fti_env == NULL); + LASSERT(info->fti_attr.la_valid == 0); info->fti_env = env; info->fti_exp = exp; + info->fti_pre_version = 0; + info->fti_transno = 0; + info->fti_has_trans = 0; return info; } +/* The same as osc_build_res_name() */ +static inline void ofd_build_resid(const struct lu_fid *fid, + struct ldlm_res_id *resname) +{ + if (fid_is_idif(fid)) { + /* get id/seq like ostid_idif_pack() does */ + osc_build_res_name(fid_idif_id(fid_seq(fid), fid_oid(fid), + fid_ver(fid)), + FID_SEQ_OST_MDT0, resname); + } else { + /* In the future, where OSTs have FID sequences allocated. */ + fid_build_reg_res_name(fid, resname); + } +} + +static inline void ofd_fid_from_resid(struct lu_fid *fid, + const struct ldlm_res_id *name) +{ + /* if seq is FID_SEQ_OST_MDT0 then we have IDIF and resid was built + * using osc_build_res_name function. */ + if (fid_seq_is_mdt0(name->name[LUSTRE_RES_ID_VER_OID_OFF])) { + struct ost_id ostid; + + ostid.oi_id = name->name[LUSTRE_RES_ID_SEQ_OFF]; + ostid.oi_seq = name->name[LUSTRE_RES_ID_VER_OID_OFF]; + fid_ostid_unpack(fid, &ostid, 0); + } else { + fid->f_seq = name->name[LUSTRE_RES_ID_SEQ_OFF]; + fid->f_oid = (__u32)name->name[LUSTRE_RES_ID_VER_OID_OFF]; + fid->f_ver = name->name[LUSTRE_RES_ID_VER_OID_OFF] >> 32; + } +} + +static inline void ofd_oti2info(struct ofd_thread_info *info, + struct obd_trans_info *oti) +{ + info->fti_xid = oti->oti_xid; + info->fti_transno = oti->oti_transno; + info->fti_pre_version = oti->oti_pre_version; +} + +static inline void ofd_info2oti(struct ofd_thread_info *info, + struct obd_trans_info *oti) +{ + oti->oti_xid = info->fti_xid; + LASSERTF(ergo(oti->oti_transno > 0, + oti->oti_transno == info->fti_transno), + "Overwrite replay transno "LPX64" by "LPX64"\n", + oti->oti_transno, info->fti_transno); + oti->oti_transno = info->fti_transno; + oti->oti_pre_version = info->fti_pre_version; +} + /* sync on lock cancel is useless when we force a journal flush, * and if we enable async journal commit, we should also turn on * sync on lock cancel if it is not enabled already. */ @@ -231,4 +530,28 @@ static inline void ofd_slc_set(struct ofd_device *ofd) ofd->ofd_sync_lock_cancel = ALWAYS_SYNC_ON_CANCEL; } +static inline void ofd_prepare_fidea(struct filter_fid *ff, struct obdo *oa) +{ + if (!(oa->o_valid & OBD_MD_FLGROUP)) + oa->o_seq = 0; + /* packing fid and converting it to LE for storing into EA. + * Here ->o_stripe_idx should be filled by LOV and rest of + * fields - by client. */ + ff->ff_parent.f_seq = cpu_to_le64(oa->o_parent_seq); + ff->ff_parent.f_oid = cpu_to_le32(oa->o_parent_oid); + /* XXX: we are ignoring o_parent_ver here, since this should + * be the same for all objects in this fileset. */ + ff->ff_parent.f_ver = cpu_to_le32(oa->o_stripe_idx); + ff->ff_objid = cpu_to_le64(oa->o_id); + ff->ff_seq = cpu_to_le64(oa->o_seq); +} + +/* niobuf_remote has no rnb_ prefix in master */ +#define rnb_offset offset +#define rnb_flags flags +#define rnb_len len +/* the same for niobuf_local */ +#define lnb_flags flags +#define lnb_rc rc + #endif /* _OFD_INTERNAL_H */