#define LOV_USES_ASSIGNED_STRIPE 0
#define LOV_USES_DEFAULT_STRIPE 1
-struct lod_ost_desc {
- struct dt_device *ltd_ost;
+struct lod_tgt_desc {
+ struct dt_device *ltd_tgt;
struct list_head ltd_kill;
struct obd_export *ltd_exp;
struct obd_uuid ltd_uuid;
ltd_reap:1; /* should this target be deleted */
};
-#define OST_PTRS 256 /* number of pointers at 1st level */
-#define OST_PTRS_PER_BLOCK 256 /* number of pointers at 2nd level */
+#define TGT_PTRS 256 /* number of pointers at 1st level */
+#define TGT_PTRS_PER_BLOCK 256 /* number of pointers at 2nd level */
-struct lod_ost_desc_idx {
- struct lod_ost_desc *ldi_ost[OST_PTRS_PER_BLOCK];
+struct lod_tgt_desc_idx {
+ struct lod_tgt_desc *ldi_tgt[TGT_PTRS_PER_BLOCK];
};
-#define OST_TGT(dev,index) \
- ((dev)->lod_ost_idx[(index) / \
- OST_PTRS_PER_BLOCK]->ldi_ost[(index)%OST_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 OST_TGT(lod, index) LTD_TGT(&lod->lod_ost_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 */
+ int ltd_tgtnr;
+ /* bitmap of TGTs available */
+ cfs_bitmap_t *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_device {
struct dt_device lod_dt_dev;
struct dt_device *lod_child;
cfs_proc_dir_entry_t *lod_proc_entry;
struct lprocfs_stats *lod_stats;
+ spinlock_t lod_connects_lock;
int lod_connects;
unsigned int lod_recovery_completed:1,
lod_initialized:1;
/* use to protect ld_active_tgt_count and all ltd_active */
spinlock_t lod_desc_lock;
- /* list of known OSTs */
- struct lod_ost_desc_idx *lod_ost_idx[OST_PTRS];
-
- /* Size of the lod_osts array, granted to be a power of 2 */
- __u32 lod_osts_size;
- /* number of registered OSTs */
- int lod_ostnr;
- /* OSTs scheduled to be deleted */
- __u32 lod_death_row;
- /* bitmap of OSTs available */
- cfs_bitmap_t *lod_ost_bitmap;
+ /* Description of OST */
+ struct lod_tgt_descs lod_ost_descs;
+ /* Description of MDT */
+ struct lod_tgt_descs lod_mdt_descs;
/* maximum EA size underlied OSD may have */
unsigned int lod_osd_max_easize;
- /* Table refcount used for delayed deletion */
- int lod_refcount;
- /* mutex to serialize concurrent updates to the ost table */
- struct mutex lod_mutex;
- /* read/write semaphore used for array relocation */
- struct rw_semaphore lod_rw_sem;
-
+ /*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 lov_qos lod_qos; /* qos info per lod */
cfs_proc_dir_entry_t *lod_symlink;
};
+#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 lod_tgt_desc
+
/*
* XXX: shrink this structure, currently it's 72bytes on 32bit arch,
* so, slab will be allocating 128bytes
int ldo_stripes_allocated;
/* default striping for directory represented by this object
* is cached in stripenr/stripe_size */
- int ldo_striping_cached:1;
- int ldo_def_striping_set:1;
+ unsigned int ldo_striping_cached:1,
+ ldo_def_striping_set:1;
__u32 ldo_def_stripe_size;
__u16 ldo_def_stripenr;
__u16 ldo_def_stripe_offset;
+ mdsno_t ldo_mds_num;
};
struct dt_object, do_lu);
}
-static inline struct dt_object *lu2dt_obj(struct lu_object *o)
-{
- LASSERT(ergo(o != NULL, lu_device_is_dt(o->lo_dev)));
- return container_of0(o, struct dt_object, do_lu);
-}
-
static inline struct dt_object *dt_object_child(struct dt_object *o)
{
return container_of0(lu_object_next(&(o)->do_lu),
int lod_fld_lookup(const struct lu_env *env, struct lod_device *lod,
const struct lu_fid *fid, mdsno_t *tgt, int flags);
/* lod_lov.c */
-void lod_getref(struct lod_device *lod);
-void lod_putref(struct lod_device *lod);
-int lod_add_device(const struct lu_env *env, struct lod_device *m,
- char *osp, unsigned index, unsigned gen, int active);
-int lod_del_device(const struct lu_env *env, struct lod_device *m,
- char *osp, unsigned index, unsigned gen);
+void lod_getref(struct lod_tgt_descs *ltd);
+void lod_putref(struct lod_device *lod, struct lod_tgt_descs *ltd);
+int lod_add_device(const struct lu_env *env, struct lod_device *lod,
+ 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);
+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);
void lod_fix_desc(struct lov_desc *desc);
int lod_qos_prep_create(const struct lu_env *env, struct lod_object *lo,
struct lu_attr *attr, const struct lu_buf *buf,
struct thandle *th);
-int qos_add_tgt(struct lod_device*, struct lod_ost_desc *);
-int qos_del_tgt(struct lod_device *, struct lod_ost_desc *);
+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);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff