/** * Implementation of the llog_operations::lop_declare_create * * This function declares the llog create. It declares also name insert * into llog directory in case of named llog. * * \param[in] env execution environment * \param[in] res llog handle of the current llog * \param[in] th current transaction handle * * \retval 0 on successful create declaration * \retval negative value on error */ static int llog_osd_declare_create(const struct lu_env *env, struct llog_handle *res, struct thandle *th) { struct llog_thread_info *lgi = llog_info(env); struct dt_insert_rec *rec = &lgi->lgi_dt_rec; struct local_oid_storage *los; struct dt_object *o; int rc; ENTRY; LASSERT(res->lgh_obj); LASSERT(th); /* object can be created by another thread */ o = res->lgh_obj; if (dt_object_exists(o)) RETURN(0); los = res->private_data; LASSERT(los); rc = llog_osd_declare_new_object(env, los, o, th); if (rc) RETURN(rc); /* do not declare header initialization here as it's declared * in llog_osd_declare_write_rec() which is always called */ if (res->lgh_name) { struct dt_object *llog_dir; llog_dir = llog_osd_dir_get(env, res->lgh_ctxt); if (IS_ERR(llog_dir)) RETURN(PTR_ERR(llog_dir)); logid_to_fid(&res->lgh_id, &lgi->lgi_fid); rec->rec_fid = &lgi->lgi_fid; rec->rec_type = S_IFREG; rc = dt_declare_insert(env, llog_dir, (struct dt_rec *)rec, (struct dt_key *)res->lgh_name, th); lu_object_put(env, &llog_dir->do_lu); if (rc) CERROR("%s: can't declare named llog %s: rc = %d\n", o->do_lu.lo_dev->ld_obd->obd_name, res->lgh_name, rc); } RETURN(rc); }
static int llog_osd_declare_create(const struct lu_env *env, struct llog_handle *res, struct thandle *th) { struct llog_thread_info *lgi = llog_info(env); struct local_oid_storage *los; struct dt_object *o; int rc; ENTRY; LASSERT(res->lgh_obj); LASSERT(th); /* object can be created by another thread */ o = res->lgh_obj; if (dt_object_exists(o)) RETURN(0); los = res->private_data; LASSERT(los); rc = llog_osd_declare_new_object(env, los, o, th); if (rc) RETURN(rc); rc = dt_declare_record_write(env, o, LLOG_CHUNK_SIZE, 0, th); if (rc) RETURN(rc); if (res->lgh_name) { struct dt_object *llog_dir; llog_dir = llog_osd_dir_get(env, res->lgh_ctxt); if (IS_ERR(llog_dir)) RETURN(PTR_ERR(llog_dir)); dt_declare_ref_add(env, o, th); logid_to_fid(&res->lgh_id, &lgi->lgi_fid); rc = dt_declare_insert(env, llog_dir, (struct dt_rec *)&lgi->lgi_fid, (struct dt_key *)res->lgh_name, th); lu_object_put(env, &llog_dir->do_lu); if (rc) CERROR("%s: can't declare named llog %s: rc = %d\n", o->do_lu.lo_dev->ld_obd->obd_name, res->lgh_name, rc); } RETURN(rc); }