Re: CDC-ACM driver: data duplication due to throttling

Am Dienstag, 6. Februar 2007 10:38 schrieb Joris van Rantwijk:
> On 5 feb 2007, at 23:07, Alan wrote:
> > atomic_t on many platforms isn't that efficient and there are more 
> > cases
> > where the atomic bit operations are fast. How about using
> > test_bit/set_bit/clear_bit/etc
> 
> I don't know. The thing is, I want something different from atomicity.
> 
> In itself, atomically setting a variable to a value is not a very 
> impressive achievement. This is different for bit operations, but I'm 
> not interested in bit operations at all.
>
>What I really want is ordered access and volatility. I want exactly the 
>kind of semantics that Java defines for volatile variables.

A spinlock will surely do that. For the time being I'll push your first
three patches forward and we can discuss this particular issue later.

	Regards
		Oliver

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