C++ (Cpp) mdd_trans_create Beispiele

Beispiel #1

Datei: mdd_orphans.c Projekt: sdsc/lustre-release

static int orphan_object_destroy(const struct lu_env *env,
				 struct mdd_object *obj,
				 struct dt_key *key)
{
	struct thandle *th = NULL;
	struct mdd_device *mdd = mdo2mdd(&obj->mod_obj);
	int rc = 0;
	ENTRY;

	th = mdd_trans_create(env, mdd);
	if (IS_ERR(th)) {
		CERROR("Cannot get thandle\n");
		RETURN(PTR_ERR(th));
	}

	rc = orph_declare_index_delete(env, obj, th);
	if (rc)
		GOTO(stop, rc);

	rc = mdo_declare_destroy(env, obj, th);
	if (rc)
		GOTO(stop, rc);

	rc = mdd_trans_start(env, mdd, th);
	if (rc)
		GOTO(stop, rc);

	mdd_write_lock(env, obj, MOR_TGT_CHILD);
	if (likely(obj->mod_count == 0)) {
		mdd_orphan_write_lock(env, mdd);
		rc = mdd_orphan_delete_obj(env, mdd, key, th);
		if (rc == 0) {
			mdo_ref_del(env, obj, th);
			if (S_ISDIR(mdd_object_type(obj))) {
				mdo_ref_del(env, obj, th);
				mdd_orphan_ref_del(env, mdd, th);
			}
			rc = mdo_destroy(env, obj, th);
		} else
			CERROR("could not delete object: rc = %d\n", rc);
		mdd_orphan_write_unlock(env, mdd);
	}
	mdd_write_unlock(env, obj);

stop:
	rc = mdd_trans_stop(env, mdd, 0, th);

	RETURN(rc);
}

Beispiel #2

Datei: mdd_orphans.c Projekt: Xyratex/lustre-stable

static int mdd_orphan_destroy(const struct lu_env *env, struct mdd_object *obj,
			      struct dt_key *key)
{
	struct thandle *th = NULL;
	struct mdd_device *mdd = mdo2mdd(&obj->mod_obj);
	bool orphan_exists = true;
	int rc = 0;
	ENTRY;

	th = mdd_trans_create(env, mdd);
	if (IS_ERR(th)) {
		rc = PTR_ERR(th);
		if (rc != -EINPROGRESS)
			CERROR("%s: cannot get orphan thandle: rc = %d\n",
			       mdd2obd_dev(mdd)->obd_name, rc);
		RETURN(rc);
	}

	mdd_write_lock(env, obj, MOR_TGT_CHILD);
	rc = mdd_orphan_declare_delete(env, obj, th);
	if (rc == -ENOENT)
		orphan_exists = false;
	else if (rc)
		GOTO(unlock, rc);

	if (orphan_exists) {
		rc = mdo_declare_destroy(env, obj, th);
		if (rc)
			GOTO(unlock, rc);
	}

	rc = mdd_trans_start(env, mdd, th);
	if (rc)
		GOTO(unlock, rc);

	if (likely(obj->mod_count == 0)) {
		dt_write_lock(env, mdd->mdd_orphans, MOR_TGT_ORPHAN);
		rc = dt_delete(env, mdd->mdd_orphans, key, th);
		if (rc) {
			CERROR("%s: could not delete orphan "DFID": rc = %d\n",
			       mdd2obd_dev(mdd)->obd_name, PFID(mdo2fid(obj)),
			       rc);
		} else if (orphan_exists) {
			mdo_ref_del(env, obj, th);
			if (S_ISDIR(mdd_object_type(obj))) {
				mdo_ref_del(env, obj, th);
				dt_ref_del(env, mdd->mdd_orphans, th);
			}
			rc = mdo_destroy(env, obj, th);
		} else {
			CWARN("%s: orphan %s "DFID" doesn't exist\n",
			      mdd2obd_dev(mdd)->obd_name, (char *)key,
			      PFID(mdo2fid(obj)));
		}
		dt_write_unlock(env, mdd->mdd_orphans);
	}
unlock:
	mdd_write_unlock(env, obj);

	rc = mdd_trans_stop(env, mdd, 0, th);

	RETURN(rc);
}