diff mbox series

[v7,01/12] iova: Export alloc_iova_fast()

Message ID 20210517095513.850-2-xieyongji@bytedance.com (mailing list archive)
State New, archived
Headers show
Series Introduce VDUSE - vDPA Device in Userspace | expand

Commit Message

Yongji Xie May 17, 2021, 9:55 a.m. UTC 
Export alloc_iova_fast() so that some modules can use it
to improve iova allocation efficiency.

Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
---
 drivers/iommu/iova.c | 1 +
 1 file changed, 1 insertion(+)

Comments

Jason Wang May 26, 2021, 2:36 a.m. UTC | #1 
在 2021/5/17 下午5:55, Xie Yongji 写道:
> Export alloc_iova_fast() so that some modules can use it
> to improve iova allocation efficiency.
>
> Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
> ---
>   drivers/iommu/iova.c | 1 +
>   1 file changed, 1 insertion(+)
>
> diff --git a/drivers/iommu/iova.c b/drivers/iommu/iova.c
> index e6e2fa85271c..317eef64ffef 100644
> --- a/drivers/iommu/iova.c
> +++ b/drivers/iommu/iova.c
> @@ -450,6 +450,7 @@ alloc_iova_fast(struct iova_domain *iovad, unsigned long size,
>   
>   	return new_iova->pfn_lo;
>   }
> +EXPORT_SYMBOL_GPL(alloc_iova_fast);
>   
>   /**
>    * free_iova_fast - free iova pfn range into rcache


Interesting, do we need export free_iova_fast() as well?

Thanks
Yongji Xie May 26, 2021, 2:43 a.m. UTC | #2 
On Wed, May 26, 2021 at 10:36 AM Jason Wang <jasowang@redhat.com> wrote:
>
>
> 在 2021/5/17 下午5:55, Xie Yongji 写道:
> > Export alloc_iova_fast() so that some modules can use it
> > to improve iova allocation efficiency.
> >
> > Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
> > ---
> >   drivers/iommu/iova.c | 1 +
> >   1 file changed, 1 insertion(+)
> >
> > diff --git a/drivers/iommu/iova.c b/drivers/iommu/iova.c
> > index e6e2fa85271c..317eef64ffef 100644
> > --- a/drivers/iommu/iova.c
> > +++ b/drivers/iommu/iova.c
> > @@ -450,6 +450,7 @@ alloc_iova_fast(struct iova_domain *iovad, unsigned long size,
> >
> >       return new_iova->pfn_lo;
> >   }
> > +EXPORT_SYMBOL_GPL(alloc_iova_fast);
> >
> >   /**
> >    * free_iova_fast - free iova pfn range into rcache
>
>
> Interesting, do we need export free_iova_fast() as well?
>

Oh, yes. I missed this commit 6e1ea50a06 ("iommu: Stop exporting
free_iova_fast()"). Will rebase on the newest kernel tree.

Thanks,
Yongji
diff mbox series

Patch

diff --git a/drivers/iommu/iova.c b/drivers/iommu/iova.c
index e6e2fa85271c..317eef64ffef 100644
--- a/drivers/iommu/iova.c
+++ b/drivers/iommu/iova.c
@@ -450,6 +450,7 @@  alloc_iova_fast(struct iova_domain *iovad, unsigned long size,
 
 	return new_iova->pfn_lo;
 }
+EXPORT_SYMBOL_GPL(alloc_iova_fast);
 
 /**
  * free_iova_fast - free iova pfn range into rcache