Re: [PATCH] Allow lockless traversal of notifier lists

[Dipankar Sarma]

On Mon, Nov 28, 2005 at 05:05:47PM +0100, Andi Kleen wrote:
>   *
>   *	Returns zero on success, or %-ENOENT on failure.
>   */
> @@ -175,6 +181,7 @@
>  

There should be an smp_read_barrier_depends() here for the first
dereferencing of the notifier block head, I think.

>  	while(nb)
>  	{
> +		smp_read_barrier_depends();
>  		ret=nb->notifier_call(nb,val,v);
>  		if(ret&NOTIFY_STOP_MASK)
>  		{

Thanks
Dipankar
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