-
Ralph Campbell authored
If system memory is migrated to device private memory and no GPU MMU page table entry exists, the GPU will fault and call hmm_range_fault() to get the PFN for the page. Since the .dev_private_owner pointer in struct hmm_range is not set, hmm_range_fault returns an error which results in the GPU program stopping with a fatal fault. Fix this by setting .dev_private_owner appropriately. Fixes: 08ddddda ("mm/hmm: check the device private page owner in hmm_range_fault()") Cc: stable@vger.kernel.org Signed-off-by:
Ralph Campbell <rcampbell@nvidia.com> Reviewed-by:
Jason Gunthorpe <jgg@mellanox.com> Signed-off-by:
Ben Skeggs <bskeggs@redhat.com>
ed710a6e