extern List find_preemptable_jobs(struct job_record *job_ptr)
{
ListIterator job_iterator;
struct job_record *job_p;
List preemptee_job_list = NULL;
/* Validate the preemptor job */
if (job_ptr == NULL) {
error("find_preemptable_jobs: job_ptr is NULL");
return preemptee_job_list;
}
if (!IS_JOB_PENDING(job_ptr)) {
error("%s: %pJ not pending", __func__, job_ptr);
return preemptee_job_list;
}
if (job_ptr->part_ptr == NULL) {
error("%s: %pJ has NULL partition ptr", __func__, job_ptr);
return preemptee_job_list;
}
if (job_ptr->part_ptr->node_bitmap == NULL) {
error("find_preemptable_jobs: partition %s node_bitmap=NULL",
job_ptr->part_ptr->name);
return preemptee_job_list;
}
/* Build an array of pointers to preemption candidates */
job_iterator = list_iterator_create(job_list);
while ((job_p = (struct job_record *) list_next(job_iterator))) {
if (!IS_JOB_RUNNING(job_p) && !IS_JOB_SUSPENDED(job_p))
continue;
if (!_qos_preemptable(job_p, job_ptr))
continue;
if ((job_p->node_bitmap == NULL) ||
(bit_overlap(job_p->node_bitmap,
job_ptr->part_ptr->node_bitmap) == 0))
continue;
if (job_ptr->details &&
(job_ptr->details->expanding_jobid == job_p->job_id))
continue;
if (acct_policy_is_job_preempt_exempt(job_p))
continue;
/* This job is a preemption candidate */
if (preemptee_job_list == NULL) {
preemptee_job_list = list_create(NULL);
}
list_append(preemptee_job_list, job_p);
}
list_iterator_destroy(job_iterator);
if (preemptee_job_list && youngest_order)
list_sort(preemptee_job_list, _sort_by_youngest);
else if (preemptee_job_list)
list_sort(preemptee_job_list, _sort_by_prio);
return preemptee_job_list;
}
extern bool job_preempt_check(job_queue_rec_t *preemptor,
job_queue_rec_t *preemptee)
{
return _qos_preemptable(preemptee->job_ptr, preemptor->job_ptr);
}
