RE: [PATCH 2/2] netprio_cgroup: Optimize the priomap copy loop slightly

From: David Laight
Date: Tue Sep 11 2012 - 07:48:30 EST


> - for (i = 0;
> - old_priomap && (i < old_priomap->priomap_len);
> - i++)
> - new_priomap->priomap[i] = old_priomap->priomap[i];
> + if (old_priomap) {
> + old_len = old_priomap->priomap_len;
> +
> + for (i = 0; i < old_len; i++)
> + new_priomap->priomap[i] = old_priomap->priomap[i];
> + }

Or:
memcpy(new_priomap->priomap, old_priomap->priomap,
old_priomap->priomap_len * sizeof old_priomap->priomap[0]);

David

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