On Tue, Aug 24, 2021 at 02:08:33PM -0400, Michael S. Tsirkin wrote:
> On Wed, Aug 18, 2021 at 08:06:31PM +0800, Xie Yongji wrote:
> > Export alloc_iova_fast() and free_iova_fast() so that
> > some modules can make use of the per-CPU cache to get
> > rid of rbtree spinlock in alloc_iova() and free_iova()
> > during IOVA allocation.
> > 
> > Signed-off-by: Xie Yongji <xieyon...@bytedance.com>
> 
> 
> This needs ack from iommu maintainers. Guys?

Looks fine to me:

Acked-by: Will Deacon <w...@kernel.org>

Will
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