[PATCH 48/59] drm/vgem: Ditch attach trickery in the fence ioctl

[Chris Wilson]

Quoting Daniel Vetter (2019-06-14 21:36:04)
> It looks like this was done purely to get a consistent place to look
> up the reservation object pointer. With the drm_prime.c helper code
> now also setting gem_object->resv for imported objects we can just use
> that pointer directly, instead of first ensuring a dma-buf exists.

Oh. commit 1ba627148ef5 ("drm: Add reservation_object to drm_gem_object")
embedded a reservation_object into the struct. I was wondering what on
earth I was doing if the code should have been so simple.

References: 1ba627148ef5 ("drm: Add reservation_object to drm_gem_object")
> Signed-off-by: Daniel Vetter <daniel.vetter at intel.com>
Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>

Quick leave before I start ranting about the horrors of
reservation_object.
-Chris