Re: Recursive deactivation of local bottom halves

[WANG Cong]

On Tue, 25 Jan 2011 14:05:14 +0100, Emil Langrock wrote:
...
> ...
> local_bh_disable();
> ....
> 	local_bh_disable();
> 	...
> 	local_bh_enable();
> ....
> local_bh_enable();
> ....
...
> 
> Can somebody tell me if that is legal or not (on smp and uniprocessor)?
> And maybe can show me the related source code why is it may or may not
> be legal?
> 

>From what you show to us, it is legal, as long as local_bh_disable()/
local_bh_enable() are always paired, it is fine to call them nestedly.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/