On Mon, Dec 2, 2019 at 2:55 AM John Garry wrote:
> Apart from this change, did anyone ever consider kmem cache for the
> magazines?
You can always make any changes you want after this patch,
I can't do all optimizations in one single patch. :)
So, I will leave this to you.
Thanks.
_
On Mon, Dec 2, 2019 at 8:58 AM Christoph Hellwig wrote:
>
> I think a subject line better describes what you change, no that
> it matches an original algorithm. The fact that the fix matches
> the original algorithm can go somewhere towards the commit log,
> preferably with a reference to the act
I think a subject line better describes what you change, no that
it matches an original algorithm. The fact that the fix matches
the original algorithm can go somewhere towards the commit log,
preferably with a reference to the actual paper.
___
iommu ma
On 30/11/2019 05:58, Cong Wang wrote:
On Fri, Nov 29, 2019 at 6:43 AM John Garry wrote:
On 29/11/2019 00:48, Cong Wang wrote:
The IOVA cache algorithm implemented in IOMMU code does not
exactly match the original algorithm described in the paper.
which paper?
It's in drivers/iommu/iova.c
On Fri, Nov 29, 2019 at 6:43 AM John Garry wrote:
>
> On 29/11/2019 00:48, Cong Wang wrote:
> > The IOVA cache algorithm implemented in IOMMU code does not
> > exactly match the original algorithm described in the paper.
> >
>
> which paper?
It's in drivers/iommu/iova.c, from line 769:
769 /*
On 29/11/2019 00:48, Cong Wang wrote:
The IOVA cache algorithm implemented in IOMMU code does not
exactly match the original algorithm described in the paper.
which paper?
Particularly, it doesn't need to free the loaded empty magazine
when trying to put it back to global depot. To make it w
The IOVA cache algorithm implemented in IOMMU code does not
exactly match the original algorithm described in the paper.
Particularly, it doesn't need to free the loaded empty magazine
when trying to put it back to global depot. To make it work, we
have to pre-allocate magazines in the depot and o
