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Re: [Xen-devel] [PATCH v3 18/18] xen/arm: IRQ: Handle multiple action per IRQ



On Thu, 2014-04-17 at 12:22 +0100, Julien Grall wrote:
> On 04/17/2014 12:15 PM, Jan Beulich wrote:
> >>>> On 17.04.14 at 12:36, <julien.grall@xxxxxxxxxx> wrote:
> >> In Linux case, they are safe because they are using a single linked list.
> > 
> > And is there a strong reason for us to use a doubly linked one?
> 
> My first version was single-linked list... Ian asked me to use generic
> list on V1 to avoid open code.

I also suggested that you could import a single linked list
implementation if you thought it would be better.

> I was looking to port llist.h from Linux but it seems a bit overkill for
> action list.

I don't see why. I'm sure there are other potential uses of singly
linked lists which people just used a double list because it was simpler
at the time.

Ian.



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