[PATCH] drm/core: Do not preserve framebuffer on rmfb, v3.

[Maarten Lankhorst]

Op 31-03-16 om 13:26 schreef Maarten Lankhorst:
> It turns out that preserving framebuffers after the rmfb call breaks
> vmwgfx userspace. This was originally introduced because it was thought
> nobody relied on the behavior, but unfortunately it seems there are
> exceptions.
>
> drm_framebuffer_remove may fail with -EINTR now, so a straight revert
> is impossible. There is no way to remove the framebuffer from the lists
> and active planes without introducing a race because of the different
> locking requirements. Instead call drm_framebuffer_remove from a
> workqueue, which is unaffected by signals.
>
Ping?