int
lock_release_contention(cos_lock_t *l, union cos_lock_atomic_struct *prev_val)
{
int lock_id = l->lock_id;
/*
* This must evaluate to false, as contested
* is already set, we are the owner (thus no
* other thread should set that),
*/
if (unlikely(!cos_cas((unsigned long*)&l->atom, prev_val->v, 0))) BUG();
if (lock_component_release(cos_spd_id(), lock_id)) return -1;
return 0;
}
static inline void block_ser_if_client_fault_notification(int spdid)
{
struct track_block *tb;
do {
if (sched_component_take(cos_spd_id()))
BUG();
} while (0);
if (!tracking_block_list[spdid].next)
goto done;
if (EMPTY_LIST(&tracking_block_list[spdid], next, prev))
goto done;
for (tb = FIRST_LIST(&tracking_block_list[spdid], next, prev);
tb != &tracking_block_list[spdid];
tb = FIRST_LIST(tb, next, prev)) {
do {
if (sched_component_release(cos_spd_id()))
BUG();
} while (0);
lock_component_release(spdid, tb->lock_id);
do {
if (sched_component_take(cos_spd_id()))
BUG();
} while (0);
}
done:
do {
if (sched_component_release(cos_spd_id()))
BUG();
} while (0);
return;
}
