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vfio iommu: Remove atomicity of ref_count of pinned pages
authorKirti Wankhede <kwankhede@nvidia.com>
Thu, 28 May 2020 20:30:48 +0000 (02:00 +0530)
committerAlex Williamson <alex.williamson@redhat.com>
Thu, 28 May 2020 21:53:21 +0000 (15:53 -0600)
commit118cec9b77c9badd567dfc03d13946c4e7b51508
treebb47b15b72e57676769c1cd908a5129b73b271b6tree | snapshot
parent039b6f428fca82a5b677259a711f02b3786fb766commit | diff
vfio iommu: Remove atomicity of ref_count of pinned pages

vfio_pfn.ref_count is always updated while holding iommu->lock, using
atomic variable is overkill.

Signed-off-by: Kirti Wankhede <kwankhede@nvidia.com>
Reviewed-by: Neo Jia <cjia@nvidia.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Yan Zhao <yan.y.zhao@intel.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
drivers/vfio/vfio_iommu_type1.c diff | blob | history
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