netdev - Re: [PATCH net-next 1/4] soreuseport: define reuseport groups

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Message-Id: <20151222.164024.1894169450945188344.davem@davemloft.net>
Date:	Tue, 22 Dec 2015 16:40:24 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	kraigatgoog@...il.com
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH net-next 1/4] soreuseport: define reuseport groups

From: Craig Gallek <kraigatgoog@...il.com>
Date: Tue, 22 Dec 2015 15:05:07 -0500

> +	for (i = 0; i < reuse->num_socks; i++) {
> +		if (reuse->socks[i] == sk) {
> +			reuse->socks[i] = reuse->socks[reuse->num_socks - 1];
> +			reuse->num_socks--;
> +			if (reuse->num_socks == 0)
> +				kfree_rcu(reuse, rcu);
> +			break;
> +		}
> +	}

Don't you need to memmove() the entire rest of the array down one slot
when you hit the matching 'sk' in there?  I can't see how it can work
to only move one entry down.
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