Re: [PATCH kernel v11 30/34] powerpc/iommu/ioda2: Add get_table_size() to calculate the size of future table

[David Gibson]

On Fri, May 29, 2015 at 06:44:54PM +1000, Alexey Kardashevskiy wrote:
> This adds a way for the IOMMU user to know how much a new table will
> use so it can be accounted in the locked_vm limit before allocation
> happens.
> 
> This stores the allocated table size in pnv_pci_ioda2_get_table_size()
> so the locked_vm counter can be updated correctly when a table is
> being disposed.
> 
> This defines an iommu_table_group_ops callback to let VFIO know
> how much memory will be locked if a table is created.
> 
> Signed-off-by: Alexey Kardashevskiy <aik@xxxxxxxxx>

Reviewed-by: David Gibson <david@xxxxxxxxxxxxxxxxxxxxx>

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson

Attachment: pgpMTXpnweJfD.pgp
Description: PGP signature