vfio iommu type1: fix the testing of capability for remote task
authorJike Song <jike.song@intel.com>
Thu, 12 Jan 2017 08:52:03 +0000 (16:52 +0800)
committerAlex Williamson <alex.williamson@redhat.com>
Thu, 12 Jan 2017 23:05:35 +0000 (16:05 -0700)
commitd1b333d12cde9cabe898160b6be9769d3382d81c
treea27dc98b8ade04fcac5957827de0b2e335c21328
parent19c816e8e455f58da9997e4c6626f06203d8fbf0
vfio iommu type1: fix the testing of capability for remote task

Before the mdev enhancement type1 iommu used capable() to test the
capability of current task; in the course of mdev development a
new requirement, testing for another task other than current, was
raised.  ns_capable() was used for this purpose, however it still
tests current, the only difference is, in a specified namespace.

Fix it by using has_capability() instead, which tests the cap for
specified task in init_user_ns, the same namespace as capable().

Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Jike Song <jike.song@intel.com>
Reviewed-by: James Morris <james.l.morris@oracle.com>
Reviewed-by: Kirti Wankhede <kwankhede@nvidia.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
drivers/vfio/vfio_iommu_type1.c