linux-kernel - Re: [PATCH] net: Disambiguate kernel message

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Date:	Tue, 31 Jan 2012 12:09:06 -0800
From:	Joe Perches <joe@...ches.com>
To:	Arun Sharma <asharma@...com>
Cc:	Bjorn Helgaas <bhelgaas@...gle.com>, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org, David Miller <davem@...emloft.net>,
	Glauber Costa <glommer@...allels.com>,
	Ingo Molnar <mingo@...e.hu>, christoph.paasch@...ouvain.be
Subject: Re: [PATCH] net: Disambiguate kernel message

On Tue, 2012-01-31 at 11:47 -0800, Arun Sharma wrote:
> On Tue, Jan 31, 2012 at 10:50:57AM -0800, Joe Perches wrote:
> > It might be useful to use a generic routine.
[]
> diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
[]
> @@ -2014,11 +2014,14 @@ adjudge_to_death:
[]
> +		too_many_orphans = tcp_too_many_orphans(sk, 0);
> +		out_of_socket_memory = tcp_out_of_memory(sk);
> +		tcp_log_oom(too_many_orphans, out_of_socket_memory);
[]
> diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
[]
> @@ -77,10 +78,10 @@ static int tcp_out_of_resources(struct sock *sk, int do_reset)
[]
> +	too_many_orphans = tcp_too_many_orphans(sk, shift);
> +	out_of_socket_memory = tcp_out_of_memory(sk);
> +	tcp_log_oom(too_many_orphans, out_of_socket_memory);
> +	if (too_many_orphans || out_of_socket_memory) {

Perhaps these repeated three lines should be a routine like:

bool tcp_check_oom(struct sock *sk, int shift)
{
	bool tcp_orphans = tcp_too_many_orphans(sk, shift);
	bool tcp_oom = tcp_out_of_memory(sk);

	printks...

	return tcp_orphans || tcp_oom;
}

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