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Table: too fast export validity check replaced with just a retry

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This commit is contained in:
Maria Matejka 2024-06-08 20:19:51 +02:00
parent 661193cf98
commit d7cf378003
1 changed files with 11 additions and 16 deletions
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27
nest/rt-table.c
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@ -2196,23 +2196,18 @@ rt_net_feed_validate_first(
if (!first)
return first_in_net;
for (uint i = 1; i < 4096; i++)
{
/* Export item validity check: we must find it between first_in_net and last_in_net */
const struct rt_pending_export *rpe = first_in_net;
while (rpe)
if (rpe == first)
return first;
else if (rpe == last_in_net)
/* Got to the end without finding the beginning */
break;
else
rpe = atomic_load_explicit(&rpe->next, memory_order_acquire);
/* Export item validity check: we must find it between first_in_net and last_in_net */
const struct rt_pending_export *rpe = first_in_net;
while (rpe)
if (rpe == first)
return first;
else if (rpe == last_in_net)
/* Got to the end without finding the beginning */
break;
else
rpe = atomic_load_explicit(&rpe->next, memory_order_acquire);
birdloop_yield();
}
log(L_WARN "Waiting too long for table announcement to finish");
/* Not found, inconsistent export, retry */
RT_READ_RETRY(tr);
}