X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Flod%2Flod_internal.h;h=7d9b95fc51d2d9005b00952ea1ec3e7fbbd555c8;hp=2661c405ab6e5b89c23d15ca62753921c525a668;hb=de2d5808bd2987f76d2486272e1a9c192ba277d4;hpb=98060d83459ba10409f295898f0ec917f938b4d3 diff --git a/lustre/lod/lod_internal.h b/lustre/lod/lod_internal.h index 2661c40..7d9b95f 100644 --- a/lustre/lod/lod_internal.h +++ b/lustre/lod/lod_internal.h @@ -45,6 +45,64 @@ #define LOV_USES_ASSIGNED_STRIPE 0 #define LOV_USES_DEFAULT_STRIPE 1 +struct lod_qos_rr { + __u32 lqr_start_idx; /* start index of new inode */ + __u32 lqr_offset_idx; /* aliasing for start_idx */ + int lqr_start_count; /* reseed counter */ + struct ost_pool lqr_pool; /* round-robin optimized list */ + unsigned long lqr_dirty:1; /* recalc round-robin list */ +}; + +struct pool_desc { + char pool_name[LOV_MAXPOOLNAME + 1]; + struct ost_pool pool_obds; /* pool members */ + atomic_t pool_refcount; + struct lod_qos_rr pool_rr; + cfs_hlist_node_t pool_hash; /* access by poolname */ + struct list_head pool_list; + struct proc_dir_entry *pool_proc_entry; + struct obd_device *pool_lobd; /* owner */ +}; + +#define pool_tgt_size(p) ((p)->pool_obds.op_size) +#define pool_tgt_count(p) ((p)->pool_obds.op_count) +#define pool_tgt_array(p) ((p)->pool_obds.op_array) +#define pool_tgt_rw_sem(p) ((p)->pool_obds.op_rw_sem) + +struct lod_qos { + struct list_head lq_oss_list; + struct rw_semaphore lq_rw_sem; + __u32 lq_active_oss_count; + unsigned int lq_prio_free; /* priority for free space */ + unsigned int lq_threshold_rr;/* priority for rr */ + struct lod_qos_rr lq_rr; /* round robin qos data */ + bool lq_dirty:1, /* recalc qos data */ + lq_same_space:1,/* the ost's all have approx. + the same space avail */ + lq_reset:1; /* zero current penalties */ +}; + +struct lod_qos_oss { + struct obd_uuid lqo_uuid; /* ptlrpc's c_remote_uuid */ + struct list_head lqo_oss_list; /* link to lov_qos */ + __u64 lqo_bavail; /* total bytes avail on OSS */ + __u64 lqo_penalty; /* current penalty */ + __u64 lqo_penalty_per_obj; /* penalty decrease + every obj*/ + time_t lqo_used; /* last used time, seconds */ + __u32 lqo_ost_count; /* number of osts on this oss */ +}; + +struct ltd_qos { + struct lod_qos_oss *ltq_oss; /* oss info */ + __u64 ltq_penalty; /* current penalty */ + __u64 ltq_penalty_per_obj; /* penalty decrease + every obj*/ + __u64 ltq_weight; /* net weighting */ + time_t ltq_used; /* last used time, seconds */ + bool ltq_usable:1; /* usable for striping */ +}; + struct lod_tgt_desc { struct dt_device *ltd_tgt; struct list_head ltd_kill; @@ -71,6 +129,7 @@ struct lod_tgt_desc_idx { TGT_PTRS_PER_BLOCK]->ldi_tgt[(index) % TGT_PTRS_PER_BLOCK]) #define OST_TGT(lod, index) LTD_TGT(&lod->lod_ost_descs, index) +#define MDT_TGT(lod, index) LTD_TGT(&lod->lod_mdt_descs, index) struct lod_tgt_descs { /* list of known TGTs */ struct lod_tgt_desc_idx *ltd_tgt_idx[TGT_PTRS]; @@ -99,7 +158,8 @@ struct lod_device { spinlock_t lod_connects_lock; int lod_connects; unsigned int lod_recovery_completed:1, - lod_initialized:1; + lod_initialized:1, + lod_lmv_failout:1; /* lov settings descriptor storing static information */ struct lov_desc lod_desc; @@ -119,7 +179,7 @@ struct lod_device { * structure should be moved to lod_tgt_descs as well. */ /* QoS info per LOD */ - struct lov_qos lod_qos; /* qos info per lod */ + struct lod_qos lod_qos; /* qos info per lod */ /* OST pool data */ struct ost_pool lod_pool_info; /* all OSTs in a packed array */ @@ -140,6 +200,25 @@ struct lod_device { #define ltd_ost ltd_tgt #define lod_ost_desc lod_tgt_desc +#define lod_mdts lod_mdt_descs.ltd_tgts +#define lod_mdt_bitmap lod_mdt_descs.ltd_tgt_bitmap +#define lod_remote_mdt_count lod_mdt_descs.ltd_tgtnr +#define lod_mdts_size lod_mdt_descs.ltd_tgts_size +#define ltd_mdt ltd_tgt +#define lod_mdt_desc lod_tgt_desc + +struct lod_dir_stripe_info { + __u32 ldsi_stripe_offset; + __u32 ldsi_def_stripenr; + __u32 ldsi_def_stripe_offset; + __u32 ldsi_def_hash_type; + __u32 ldsi_hash_type; + + unsigned int ldsi_striping_cached:1, + ldsi_def_striping_set:1, + ldsi_striped:1; +}; + /* * XXX: shrink this structure, currently it's 72bytes on 32bit arch, * so, slab will be allocating 128bytes @@ -148,9 +227,12 @@ struct lod_object { struct dt_object ldo_obj; /* if object is striped, then the next fields describe stripes */ + /* For striped directory, ldo_stripenr == slave stripe count */ __u16 ldo_stripenr; __u16 ldo_layout_gen; __u32 ldo_stripe_size; + __u32 ldo_pattern; + __u16 ldo_released_stripenr; char *ldo_pool; struct dt_object **ldo_stripe; /* to know how much memory to free, ldo_stripenr can be less */ @@ -158,16 +240,30 @@ struct lod_object { * is cached in stripenr/stripe_size */ unsigned int ldo_stripes_allocated:16, ldo_striping_cached:1, - ldo_def_striping_set:1; + ldo_def_striping_set:1, + /* ldo_dir_slave_stripe indicate this is a slave stripe of + * a striped dir */ + ldo_dir_slave_stripe:1; __u32 ldo_def_stripe_size; __u16 ldo_def_stripenr; __u16 ldo_def_stripe_offset; - mdsno_t ldo_mds_num; + struct lod_dir_stripe_info *ldo_dir_stripe; }; +#define ldo_dir_stripe_offset ldo_dir_stripe->ldsi_stripe_offset +#define ldo_dir_def_stripenr ldo_dir_stripe->ldsi_def_stripenr +#define ldo_dir_hash_type ldo_dir_stripe->ldsi_hash_type +#define ldo_dir_def_hash_type ldo_dir_stripe->ldsi_def_hash_type +#define ldo_dir_striping_cached ldo_dir_stripe->ldsi_striping_cached +#define ldo_dir_striped ldo_dir_stripe->ldsi_striped +#define ldo_dir_def_striping_set ldo_dir_stripe->ldsi_def_striping_set +#define ldo_dir_def_stripe_offset ldo_dir_stripe->ldsi_def_stripe_offset struct lod_it { struct dt_object *lit_obj; /* object from the layer below */ + /* stripe offset of iteration */ + __u32 lit_stripe_index; + __u32 lit_attr; struct dt_it *lit_it; /* iterator from the layer below */ }; @@ -175,12 +271,19 @@ struct lod_thread_info { /* per-thread buffer for LOV EA */ void *lti_ea_store; int lti_ea_store_size; + /* per-thread buffer for LMV EA */ struct lu_buf lti_buf; struct ost_id lti_ostid; struct lu_fid lti_fid; struct obd_statfs lti_osfs; struct lu_attr lti_attr; struct lod_it lti_it; + struct ldlm_res_id lti_res_id; + /* used to hold lu_dirent, sizeof(struct lu_dirent) + NAME_MAX */ + char lti_key[sizeof(struct lu_dirent) + NAME_MAX]; + struct dt_object_format lti_format; + struct lu_name lti_name; + struct lu_buf lti_linkea_buf; }; extern const struct lu_device_operations lod_lu_ops; @@ -256,13 +359,24 @@ static inline struct lod_thread_info *lod_env_info(const struct lu_env *env) return info; } +static inline struct lu_name * +lod_name_get(const struct lu_env *env, const void *area, int len) +{ + struct lu_name *lname; + + lname = &lod_env_info(env)->lti_name; + lname->ln_name = area; + lname->ln_namelen = len; + return lname; +} + #define lod_foreach_ost(__dev, index) \ if ((__dev)->lod_osts_size > 0) \ cfs_foreach_bit((__dev)->lod_ost_bitmap, (index)) /* lod_dev.c */ int lod_fld_lookup(const struct lu_env *env, struct lod_device *lod, - const struct lu_fid *fid, mdsno_t *tgt, int flags); + const struct lu_fid *fid, __u32 *tgt, int *flags); /* lod_lov.c */ void lod_getref(struct lod_tgt_descs *ltd); void lod_putref(struct lod_device *lod, struct lod_tgt_descs *ltd); @@ -271,10 +385,32 @@ int lod_add_device(const struct lu_env *env, struct lod_device *lod, char *type, int active); int lod_del_device(const struct lu_env *env, struct lod_device *lod, struct lod_tgt_descs *ltd, char *osp, unsigned idx, - unsigned gen); -int lod_fini_tgt(struct lod_device *lod, struct lod_tgt_descs *ltd); -int lod_load_striping(const struct lu_env *env, struct lod_object *mo); -int lod_get_lov_ea(const struct lu_env *env, struct lod_object *mo); + unsigned gen, bool for_ost); +int lod_fini_tgt(const struct lu_env *env, struct lod_device *lod, + struct lod_tgt_descs *ltd, bool for_ost); +int lod_load_striping_locked(const struct lu_env *env, struct lod_object *lo); +int lod_load_striping(const struct lu_env *env, struct lod_object *lo); + +int lod_get_ea(const struct lu_env *env, struct lod_object *lo, + const char *name); +static inline int +lod_get_lov_ea(const struct lu_env *env, struct lod_object *lo) +{ + return lod_get_ea(env, lo, XATTR_NAME_LOV); +} + +static inline int +lod_get_lmv_ea(const struct lu_env *env, struct lod_object *lo) +{ + return lod_get_ea(env, lo, XATTR_NAME_LMV); +} + +static inline int +lod_get_default_lmv_ea(const struct lu_env *env, struct lod_object *lo) +{ + return lod_get_ea(env, lo, XATTR_NAME_DEFAULT_LMV); +} + void lod_fix_desc(struct lov_desc *desc); void lod_fix_desc_qos_maxage(__u32 *val); void lod_fix_desc_pattern(__u32 *val); @@ -284,14 +420,17 @@ int lod_pools_init(struct lod_device *m, struct lustre_cfg *cfg); int lod_pools_fini(struct lod_device *m); int lod_parse_striping(const struct lu_env *env, struct lod_object *mo, const struct lu_buf *buf); +int lod_parse_dir_striping(const struct lu_env *env, struct lod_object *lo, + const struct lu_buf *buf); int lod_initialize_objects(const struct lu_env *env, struct lod_object *mo, struct lov_ost_data_v1 *objs); int lod_store_def_striping(const struct lu_env *env, struct dt_object *dt, struct thandle *th); -int lod_verify_striping(struct lod_device *d, const struct lu_buf *buf, int specific); +int lod_verify_striping(struct lod_device *d, const struct lu_buf *buf, + bool is_from_disk); int lod_generate_and_set_lovea(const struct lu_env *env, struct lod_object *mo, struct thandle *th); - +int lod_ea_store_resize(struct lod_thread_info *info, int size); /* lod_pool.c */ int lod_ost_pool_add(struct ost_pool *op, __u32 idx, unsigned int min_count); int lod_ost_pool_remove(struct ost_pool *op, __u32 idx); @@ -315,11 +454,12 @@ int qos_add_tgt(struct lod_device*, struct lod_tgt_desc *); int qos_del_tgt(struct lod_device *, struct lod_tgt_desc *); /* lproc_lod.c */ -void lprocfs_lod_init_vars(struct lprocfs_static_vars *lvars); int lod_procfs_init(struct lod_device *lod); void lod_procfs_fini(struct lod_device *lod); /* lod_object.c */ +int lod_load_lmv_shards(const struct lu_env *env, struct lod_object *lo, + struct lu_buf *buf, bool resize); int lod_object_set_pool(struct lod_object *o, char *pool); int lod_declare_striped_object(const struct lu_env *env, struct dt_object *dt, struct lu_attr *attr,