Re: [PATCH] drm/radeon: delay virtual address destruction to bo destruction

On Mit, 2012-08-08 at 10:36 -0400, j.glisse@gmail.com wrote:

From: Jerome Glisse jglisse@redhat.com

Use the ttm bo delayed destruction queue so that we don't block userspace when destroying bo. The virtual address destruction will happen at same time as the real bo destruction when everythings using the bo is done.

I'm on the fence about whether it's better to block or not here. If we don't, userspace will still need to defer at least the virtual address space deallocation. It might be easier (and less prone to subtle bugs) to just defer the BO destruction in userspace to avoid blocking here.