void
rf_FreeRaidAccDesc(RF_RaidAccessDesc_t *desc)
{
RF_Raid_t *raidPtr = desc->raidPtr;
RF_DagList_t *dagList, *temp;
RF_VoidPointerListElem_t *tmp;
RF_ASSERT(desc);
/* Cleanup the dagList(s) */
dagList = desc->dagList;
while(dagList != NULL) {
temp = dagList;
dagList = dagList->next;
rf_FreeDAGList(temp);
}
while (desc->iobufs) {
tmp = desc->iobufs;
desc->iobufs = desc->iobufs->next;
rf_FreeIOBuffer(raidPtr, tmp);
}
while (desc->stripebufs) {
tmp = desc->stripebufs;
desc->stripebufs = desc->stripebufs->next;
rf_FreeStripeBuffer(raidPtr, tmp);
}
pool_put(&rf_pools.rad, desc);
RF_LOCK_MUTEX(rf_rad_lock);
raidPtr->nAccOutstanding--;
if (raidPtr->waitShutdown) {
RF_SIGNAL_COND(raidPtr->outstandingCond);
}
RF_UNLOCK_MUTEX(rf_rad_lock);
}
int
rf_State_ProcessDAG(RF_RaidAccessDesc_t *desc)
{
RF_AccessStripeMapHeader_t *asmh = desc->asmap;
RF_Raid_t *raidPtr = desc->raidPtr;
RF_DagHeader_t *dag_h;
int i, j, done = RF_TRUE;
RF_DagList_t *dagList, *temp;
/* check to see if this is the last dag */
dagList = desc->dagList;
for (i = 0; i < desc->numStripes; i++) {
if (dagList->numDags != dagList->numDagsDone)
done = RF_FALSE;
dagList = dagList->next;
}
if (done) {
if (desc->status) {
/* a dag failed, retry */
/* free all dags */
dagList = desc->dagList;
for (i = 0; i < desc->numStripes; i++) {
rf_FreeDAG(dagList->dags);
temp = dagList;
dagList = dagList->next;
rf_FreeDAGList(temp);
}
desc->dagList = NULL;
rf_MarkFailuresInASMList(raidPtr, asmh);
/* note the retry so that we'll bail in
rf_State_CreateDAG() once we've retired
the IO RF_RETRY_THRESHOLD times */
desc->numRetries++;
/* back up to rf_State_CreateDAG */
desc->state = desc->state - 2;
return RF_FALSE;
} else {
/* move on to rf_State_Cleanup */
desc->state++;
}
return RF_FALSE;
} else {
/* more dags to execute */
/* see if any are ready to be fired. if so, fire them */
/* don't fire the initial dag in a list, it's fired in
* rf_State_ExecuteDAG */
dagList = desc->dagList;
for (i = 0; i < desc->numStripes; i++) {
if ((dagList->numDagsDone < dagList->numDags)
&& (dagList->numDagsDone == dagList->numDagsFired)
&& (dagList->numDagsFired > 0)) {
#if RF_ACC_TRACE > 0
RF_ETIMER_START(dagList->tracerec.timer);
#endif
/* fire next dag in this stripe */
/* first, skip to next dag awaiting execution */
dag_h = dagList->dags;
for (j = 0; j < dagList->numDagsDone; j++)
dag_h = dag_h->next;
dagList->numDagsFired++;
rf_DispatchDAG(dag_h, (void (*) (void *)) rf_ContinueDagAccess,
dagList);
}
dagList = dagList->next;
}
return RF_TRUE;
}
}
