Ondřej Surý
20670ee22d
There was a repetetive pattern:
if (NODE_TRYUPGRADE(&nodelock->lock, nlocktypep) != ISC_R_SUCCESS)
{
NODE_UNLOCK(&nodelock->lock, nlocktypep);
NODE_WRLOCK(&nodelock->lock, nlocktypep);
}
Instead of doing that over again, introduce new NODE_FORCEUPGRADE()
and TREE_FORCEUPGRADE() that does exactly this code, and simplify
the aforementioned code with just:
NODE_FORCEUPGRADE(&nodelock->lock, nlocktypep);