int lmv_blocking_ast(struct ldlm_lock *, struct ldlm_lock_desc *,
void *, int);
int lmv_fld_lookup(struct lmv_obd *lmv, const struct lu_fid *fid, u32 *mds);
-int __lmv_fid_alloc(struct lmv_obd *lmv, struct lu_fid *fid, u32 mds);
int lmv_fid_alloc(const struct lu_env *env, struct obd_export *exp,
struct lu_fid *fid, struct md_op_data *op_data);
int lmv_getattr_name(struct obd_export *exp, struct md_op_data *op_data,
struct ptlrpc_request **preq);
+void lmv_activate_target(struct lmv_obd *lmv, struct lmv_tgt_desc *tgt,
+ int activate);
int lmv_statfs_check_update(struct obd_device *obd, struct lmv_tgt_desc *tgt);
return container_of0(lmv, struct obd_device, u.lmv);
}
-static inline struct lmv_tgt_desc *
-lmv_get_target(struct lmv_obd *lmv, u32 mdt_idx, int *index)
+static inline struct lu_tgt_desc *
+lmv_tgt(struct lmv_obd *lmv, __u32 index)
{
- int i;
+ return index < lmv->lmv_mdt_descs.ltd_tgt_bitmap->size ?
+ LTD_TGT(&lmv->lmv_mdt_descs, index) : NULL;
+}
- for (i = 0; i < lmv->desc.ld_tgt_count; i++) {
- if (lmv->tgts[i] == NULL)
- continue;
+static inline bool
+lmv_mdt0_inited(struct lmv_obd *lmv)
+{
+ return lmv->lmv_mdt_descs.ltd_tgt_bitmap->size > 0 &&
+ cfs_bitmap_check(lmv->lmv_mdt_descs.ltd_tgt_bitmap, 0);
+}
- if (lmv->tgts[i]->ltd_idx == mdt_idx) {
- if (index != NULL)
- *index = i;
- return lmv->tgts[i];
- }
- }
+#define lmv_foreach_tgt(lmv, tgt) ltd_foreach_tgt(&(lmv)->lmv_mdt_descs, tgt)
+
+#define lmv_foreach_tgt_safe(lmv, tgt, tmp) \
+ ltd_foreach_tgt_safe(&(lmv)->lmv_mdt_descs, tgt, tmp)
+
+static inline
+struct lu_tgt_desc *lmv_first_connected_tgt(struct lmv_obd *lmv)
+{
+ struct lu_tgt_desc *tgt;
+
+ tgt = ltd_first_tgt(&lmv->lmv_mdt_descs);
+ while (tgt && !tgt->ltd_exp)
+ tgt = ltd_next_tgt(&lmv->lmv_mdt_descs, tgt);
- return ERR_PTR(-ENODEV);
+ return tgt;
}
+static inline
+struct lu_tgt_desc *lmv_next_connected_tgt(struct lmv_obd *lmv,
+ struct lu_tgt_desc *tgt)
+{
+ do {
+ tgt = ltd_next_tgt(&lmv->lmv_mdt_descs, tgt);
+ } while (tgt && !tgt->ltd_exp);
+
+ return tgt;
+}
+
+#define lmv_foreach_connected_tgt(lmv, tgt) \
+ for (tgt = lmv_first_connected_tgt(lmv); tgt; \
+ tgt = lmv_next_connected_tgt(lmv, tgt))
+
static inline int
-lmv_find_target_index(struct lmv_obd *lmv, const struct lu_fid *fid)
+lmv_fid2tgt_index(struct lmv_obd *lmv, const struct lu_fid *fid)
{
- struct lmv_tgt_desc *ltd;
- u32 mdt_idx = 0;
- int index = 0;
-
- if (lmv->desc.ld_tgt_count > 1) {
- int rc;
- rc = lmv_fld_lookup(lmv, fid, &mdt_idx);
- if (rc < 0)
- return rc;
- }
+ u32 mdt_idx;
+ int rc;
+
+ if (lmv->lmv_mdt_count < 2)
+ return 0;
- ltd = lmv_get_target(lmv, mdt_idx, &index);
- if (IS_ERR(ltd))
- return PTR_ERR(ltd);
+ rc = lmv_fld_lookup(lmv, fid, &mdt_idx);
+ if (rc < 0)
+ return rc;
- return index;
+ return mdt_idx;
}
static inline struct lmv_tgt_desc *
-lmv_find_target(struct lmv_obd *lmv, const struct lu_fid *fid)
+lmv_fid2tgt(struct lmv_obd *lmv, const struct lu_fid *fid)
{
+ struct lu_tgt_desc *tgt;
int index;
- index = lmv_find_target_index(lmv, fid);
+ index = lmv_fid2tgt_index(lmv, fid);
if (index < 0)
return ERR_PTR(index);
- return lmv->tgts[index];
+ tgt = lmv_tgt(lmv, index);
+
+ return tgt ? tgt : ERR_PTR(-ENODEV);
}
static inline int lmv_stripe_md_size(int stripe_count)
struct lmv_tgt_desc *lmv_locate_tgt(struct lmv_obd *lmv,
struct md_op_data *op_data);
+int lmv_migrate_existence_check(struct lmv_obd *lmv,
+ struct md_op_data *op_data);
/* lproc_lmv.c */
int lmv_tunables_init(struct obd_device *obd);
-
#endif