[PATCH] gpu: drm: tegra: Adding new typedef vm_fault_t

[Souptick Joarder]

> This new function returns VM_FAULT_NOPAGE only for 0 and -EBUSY, whereas
> we used to return VM_FAULT_NOPAGE for -EAGAIN, -ERESTARTSYS and -EINTR
> as well.

Previously vm_insert_page unable to return VM_FAULT_ type due to which
different drivers
have their own mapping from err to VM_FAULT_ type. With new
vmf_insert_page() introduce
in 4.17-rc1 we have a common mapping for err to VM_FAULT_ which remain
same for every
drivers/file systems.

Was this previously wrong?

I think Matthew is the right person to answer this.