/**
* 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);
}
