drm/xe: Decrement fault mode counts in xe_vm_close_and_put

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Rather waiting for the VM to be destroyed (all refs to VM go to zero),
drop the fault mode counts when the VM is closed in xe_vm_close_and_put.
This avoids a window where user space can create a faulting VM, close
it, and a subsequent creation of a non-faulting VM fails.

v2 (Lucas): Drop VLK reference in commit message

Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Suggested-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

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Matthew Brost 2023-03-24 09:33:36 -07:00 • committed by Rodrigo Vivi

parent ef5e3c2f70

commit cf667aec0a

1 changed files with 7 additions and 8 deletions

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drivers/gpu/drm/xe/xe_vm.c

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