Re: parallel suspend/resume

[James Courtier-Dutton <James@superbug.co.uk>]

Pavel Machek wrote:
> On Sat 2007-12-08 09:00:44, Oliver Neukum wrote:
>   
>> Am Freitag, 7. Dezember 2007 19:01:12 schrieb David Brownell:
>>     
>>> FWIW the appended patch removes that rude "order of registration"
>>> policy, so that the suspend/resume list matches the device tree.
>>> It's behaved OK on PCs and, in light duty, a few development boards;
>>> I've carried it around most of this year.
>>>       
>> As it is a tree, why not store it as such?
>>     
>
> IIRC because we do not want recursive tree walkers in the kernel --
> stack limits.
>
>   

Surely it is possible to code a tree walker that is not a recursive 
function?
I believe you can use a simple loop and the heap to store state that 
would otherwise be stored on the stack in a recursive function.