return buf;
}
-struct thandle *seq_store_trans_start(struct lu_server_seq *seq,
- const struct lu_env *env, int credit,
- int sync)
-{
- struct seq_thread_info *info;
- struct dt_device *dt_dev;
- struct thandle *th;
- ENTRY;
+struct seq_update_callback {
+ struct dt_txn_commit_cb suc_cb;
+ struct lu_server_seq *suc_seq;
+};
- dt_dev = lu2dt_dev(seq->lss_obj->do_lu.lo_dev);
- info = lu_context_key_get(&env->le_ctx, &seq_thread_key);
- LASSERT(info != NULL);
-
- txn_param_init(&info->sti_txn, credit);
- if (sync)
- txn_param_sync(&info->sti_txn);
-
- th = dt_dev->dd_ops->dt_trans_start(env, dt_dev, &info->sti_txn);
- return th;
+void seq_update_cb(struct lu_env *env, struct thandle *th,
+ struct dt_txn_commit_cb *cb, int err)
+{
+ struct seq_update_callback *ccb;
+ ccb = container_of0(cb, struct seq_update_callback, suc_cb);
+ ccb->suc_seq->lss_need_sync = 0;
+ cfs_list_del(&ccb->suc_cb.dcb_linkage);
+ OBD_FREE_PTR(ccb);
}
-void seq_store_trans_stop(struct lu_server_seq *seq,
- const struct lu_env *env,
- struct thandle *th)
+int seq_update_cb_add(struct thandle *th, struct lu_server_seq *seq)
{
- struct dt_device *dt_dev;
- ENTRY;
-
- dt_dev = lu2dt_dev(seq->lss_obj->do_lu.lo_dev);
-
- dt_dev->dd_ops->dt_trans_stop(env, th);
+ struct seq_update_callback *ccb;
+ int rc;
+ OBD_ALLOC_PTR(ccb);
+ if (ccb == NULL)
+ return -ENOMEM;
+
+ ccb->suc_cb.dcb_func = seq_update_cb;
+ CFS_INIT_LIST_HEAD(&ccb->suc_cb.dcb_linkage);
+ ccb->suc_seq = seq;
+ seq->lss_need_sync = 1;
+ rc = dt_trans_cb_add(th, &ccb->suc_cb);
+ if (rc)
+ OBD_FREE_PTR(ccb);
+ return rc;
}
/* This function implies that caller takes care about locking. */
int seq_store_update(const struct lu_env *env, struct lu_server_seq *seq,
struct lu_seq_range *out, int sync)
{
+ struct seq_thread_info *info;
+ struct dt_device *dt_dev;
struct thandle *th;
int rc;
int credits = SEQ_TXN_STORE_CREDITS;
+ ENTRY;
+
+ dt_dev = lu2dt_dev(seq->lss_obj->do_lu.lo_dev);
+ info = lu_context_key_get(&env->le_ctx, &seq_thread_key);
if (out != NULL)
credits += FLD_TXN_INDEX_INSERT_CREDITS;
- th = seq_store_trans_start(seq, env, credits, sync);
+ txn_param_init(&info->sti_txn, credits);
+ th = dt_trans_start(env, dt_dev, &info->sti_txn);
if (IS_ERR(th))
RETURN(PTR_ERR(th));
if (rc) {
CERROR("%s: Can't write space data, rc %d\n",
seq->lss_name, rc);
+ GOTO(out,rc);
} else if (out != NULL) {
rc = fld_server_create(seq->lss_site->ms_server_fld,
env, out, th);
if (rc) {
CERROR("%s: Can't Update fld database, rc %d\n",
seq->lss_name, rc);
+ GOTO(out,rc);
}
}
- seq_store_trans_stop(seq, env, th);
+ /* next sequence update will need sync until this update is committed
+ * in case of sync operation this is not needed obviously */
+ if (!sync)
+ /* if callback can't be added then sync always */
+ sync = !!seq_update_cb_add(th, seq);
+
+ th->th_sync |= sync;
+out:
+ dt_trans_stop(env, dt_dev, th);
return rc;
}