powerpc/iommu: Pass mm_struct to init/cleanup helpers

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[ Upstream commit 88f54a3581 ]

We are going to get rid of @current references in mmu_context_boos3s64.c
and cache mm_struct in the VFIO container. Since mm_context_t does not
have reference counting, we will be using mm_struct which does have
the reference counter.

This changes mm_iommu_init/mm_iommu_cleanup to receive mm_struct rather
than mm_context_t (which is embedded into mm).

This should not cause any behavioral change.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Alexey Kardashevskiy 2017-03-17 00:48:26 +00:00 • committed by Greg Kroah-Hartman

parent 5d8b3e7559

commit 2ba7ef2182

4 changed files with 10 additions and 9 deletions

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4

arch/powerpc/include/asm/mmu_context.h

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2

arch/powerpc/kernel/setup-common.c

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4

arch/powerpc/mm/mmu_context_book3s64.c

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9

arch/powerpc/mm/mmu_context_iommu.c

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