struct pool_desc {
char pool_name[LOV_MAXPOOLNAME + 1];
- struct ost_pool pool_obds; /* pool members */
+ struct lu_tgt_pool pool_obds; /* pool members */
atomic_t pool_refcount;
struct lu_qos_rr pool_rr;
struct hlist_node pool_hash; /* access by poolname */
#define pool_tgt_rw_sem(p) ((p)->pool_obds.op_rw_sem)
#define lod_tgt_desc lu_tgt_desc
-
-#define TGT_PTRS 256 /* number of pointers at 1st level */
-#define TGT_PTRS_PER_BLOCK 256 /* number of pointers at 2nd level */
-
-struct lod_tgt_desc_idx {
- struct lod_tgt_desc *ldi_tgt[TGT_PTRS_PER_BLOCK];
-};
-
-#define LTD_TGT(ltd, index) \
- ((ltd)->ltd_tgt_idx[(index) / \
- TGT_PTRS_PER_BLOCK]->ldi_tgt[(index) % TGT_PTRS_PER_BLOCK])
+#define lod_tgt_descs lu_tgt_descs
#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];
- /* Size of the lod_tgts array, granted to be a power of 2 */
- __u32 ltd_tgts_size;
- /* number of registered TGTs */
- __u32 ltd_tgtnr;
- /* bitmap of TGTs available */
- struct cfs_bitmap *ltd_tgt_bitmap;
- /* TGTs scheduled to be deleted */
- __u32 ltd_death_row;
- /* Table refcount used for delayed deletion */
- int ltd_refcount;
- /* mutex to serialize concurrent updates to the tgt table */
- struct mutex ltd_mutex;
- /* read/write semaphore used for array relocation */
- struct rw_semaphore ltd_rw_sem;
-};
struct lod_avoid_guide {
/* ids of OSSs avoid guidance */
lod_lmv_failout:1,
lod_child_got_update_log:1;
- /* lov settings descriptor storing static information */
- struct lov_desc lod_desc;
-
/* protect ld_active_tgt_count, ltd_active and lod_md_root */
spinlock_t lod_lock;
/* maximum size of MDT stripe for Data-on-MDT files. */
unsigned int lod_dom_max_stripesize;
- /*FIXME: When QOS and pool is implemented for MDT, probably these
- * structure should be moved to lod_tgt_descs as well.
- */
- /* QoS info per LOD */
- struct lu_qos lod_qos; /* qos info per lod */
-
/* OST pool data */
- struct ost_pool lod_pool_info; /* all OSTs in a packed array */
int lod_pool_count;
struct cfs_hash *lod_pools_hash_body; /* used for key access */
struct list_head lod_pool_list; /* used for sequential access */
struct lod_object *lod_md_root;
};
-#define lod_osts lod_ost_descs.ltd_tgts
-#define lod_ost_bitmap lod_ost_descs.ltd_tgt_bitmap
-#define lod_ostnr lod_ost_descs.ltd_tgtnr
-#define lod_osts_size lod_ost_descs.ltd_tgts_size
-#define ltd_ost ltd_tgt
-#define lod_ost_desc lu_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 lu_tgt_desc
+#define lod_ost_bitmap lod_ost_descs.ltd_tgt_bitmap
+#define lod_ost_count lod_ost_descs.ltd_lov_desc.ld_tgt_count
+#define lod_remote_mdt_count lod_mdt_descs.ltd_lmv_desc.ld_tgt_count
struct lod_layout_component {
struct lu_extent llc_extent;
__u64 llc_timestamp; /* snapshot time */
char *llc_pool;
/* ost list specified with LOV_USER_MAGIC_SPECIFIC lum */
- struct ost_pool llc_ostlist;
+ struct lu_tgt_pool llc_ostlist;
struct dt_object **llc_stripe;
__u32 *llc_ost_indices;
};
}
}
-#define lod_foreach_ost(__dev, index) \
- if ((__dev)->lod_osts_size > 0) \
- cfs_foreach_bit((__dev)->lod_ost_bitmap, (index))
-
-#define lod_foreach_mdt(mdt_dev, index) \
- cfs_foreach_bit((mdt_dev)->lod_mdt_bitmap, (index))
+#define lod_foreach_mdt(lod, mdt) ltd_foreach_tgt(&(lod)->lod_mdt_descs, mdt)
+#define lod_foreach_ost(lod, ost) ltd_foreach_tgt(&(lod)->lod_ost_descs, ost)
/* lod_dev.c */
extern struct kmem_cache *lod_object_kmem;
char *osp, unsigned index, unsigned gen, int mdt_index,
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, bool for_ost);
+ struct lod_tgt_descs *ltd, char *osp, unsigned int idx,
+ unsigned int gen);
int lod_fini_tgt(const struct lu_env *env, struct lod_device *lod,
- struct lod_tgt_descs *ltd, bool for_ost);
+ struct lod_tgt_descs *ltd);
int lod_striping_load(const struct lu_env *env, struct lod_object *lo);
int lod_striping_reload(const struct lu_env *env, struct lod_object *lo,
const struct lu_buf *buf);
void lod_fix_desc_pattern(__u32 *val);
void lod_fix_desc_stripe_count(__u32 *val);
void lod_fix_desc_stripe_size(__u64 *val);
+void lod_fix_lmv_desc_pattern(__u32 *val);
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,
int lod_fill_mirrors(struct lod_object *lo);
/* 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);
-int lod_ost_pool_extend(struct ost_pool *op, unsigned int min_count);
+int lod_tgt_pool_init(struct lu_tgt_pool *op, unsigned int count);
+int lod_tgt_pool_free(struct lu_tgt_pool *op);
+int lod_tgt_pool_add(struct lu_tgt_pool *op, __u32 idx, unsigned int min_count);
+int lod_tgt_pool_remove(struct lu_tgt_pool *op, __u32 idx);
+int lod_tgt_pool_extend(struct lu_tgt_pool *op, unsigned int min_count);
struct pool_desc *lod_find_pool(struct lod_device *lod, char *poolname);
void lod_pool_putref(struct pool_desc *pool);
-int lod_ost_pool_free(struct ost_pool *op);
int lod_pool_del(struct obd_device *obd, char *poolname);
-int lod_ost_pool_init(struct ost_pool *op, unsigned int count);
extern struct cfs_hash_ops pool_hash_operations;
int lod_check_index_in_pool(__u32 idx, struct pool_desc *pool);
int lod_pool_new(struct obd_device *obd, char *poolname);
};
/* lod_qos.c */
+int lod_mdt_alloc_qos(const struct lu_env *env, struct lod_object *lo,
+ struct dt_object **stripes);
+int lod_mdt_alloc_rr(const struct lu_env *env, struct lod_object *lo,
+ struct dt_object **stripe);
int lod_prepare_create(const struct lu_env *env, struct lod_object *lo,
struct lu_attr *attr, const struct lu_buf *buf,
struct thandle *th);
-void lod_qos_rr_init(struct lu_qos_rr *lqr);
int lod_use_defined_striping(const struct lu_env *, struct lod_object *,
const struct lu_buf *);
int lod_qos_parse_config(const struct lu_env *env, struct lod_object *lo,
bool is_dir);
__u16 lod_get_stripe_count(struct lod_device *lod, struct lod_object *lo,
__u16 stripe_count, bool overstriping);
-void lod_qos_statfs_update(const struct lu_env *env, struct lod_device *lod);
+void lod_qos_statfs_update(const struct lu_env *env, struct lod_device *lod,
+ struct lu_tgt_descs *ltd);
/* lproc_lod.c */
int lod_procfs_init(struct lod_device *lod);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff