On 1/16/2023 9:41 AM, Jason Gunthorpe wrote:
> On Mon, Jan 09, 2023 at 12:31:31PM -0500, Dennis Dalessandro wrote:
>
>> + if (fd->use_mn) {
>> + ret = mmu_interval_notifier_insert(
>> + &tidbuf->notifier, current->mm,
>> + tidbuf->vaddr, tidbuf->npages * PAGE_SIZE,
>> + &tid_cover_ops);
>
> This is still not the right way to use these notifiers, you should be
> removing the calls to mmu_notifier_register()
I am confused by your comment. This is the user expected receive code. There are no calls to mmu_notifier_register() here. You removed those calls when you added the FIXME. The Send DMA side still has calls to mmu_notifier_register(). This series is all about user expected receive.
-Dean
>
> Jason
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