Re: [PATCH 1/3] drm/amdkfd: support concurrent userptr update for HMM v2

On 2019-03-06 9:42 p.m., Yang, Philip wrote: > Userptr restore may have concurrent userptr invalidation after > hmm_vma_fault adds the range to the hmm->ranges list, needs call > hmm_vma_range_done to remove the range from hmm->ranges list first, > then reschedule the restore worker. Otherwise

[PATCH 1/3] drm/amdkfd: support concurrent userptr update for HMM v2

Userptr restore may have concurrent userptr invalidation after hmm_vma_fault adds the range to the hmm->ranges list, needs call hmm_vma_range_done to remove the range from hmm->ranges list first, then reschedule the restore worker. Otherwise hmm_vma_fault will add same range to the list, this will