linux-kernel - Re: [PATCH] AF_UNIX recv/shutdown race

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Message-ID: <20061120120159.GC1001@ff.dom.local>
Date:	Mon, 20 Nov 2006 13:01:59 +0100
From:	Jarek Poplawski <jarkao2@...pl>
To:	jmalicki@...acarta.com
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] AF_UNIX recv/shutdown race

On 20-11-2006 00:40, jmalicki@...acarta.com wrote:
...
> @@ -650,7 +651,7 @@ static int unix_autobind(struct socket *
>  	struct unix_address * addr;
>  	int err;
> 
> -	mutex_lock(&u->readlock);
> +	unix_state_rlock(sk);

Here follows:
        err = 0;
        if (u->addr)
                goto out;

        err = -ENOMEM;
        addr = kzalloc(sizeof(*addr) + sizeof(short) + 16, GFP_KERNEL);
        if (!addr)
                goto out;

Are you sure you can use spin_lock here? 

Jarek P.
-
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