Re: [PATCH 2/2] drm/fence: allow fence waiting to be interrupted by userspace

Op 11-08-16 om 20:39 schreef Gustavo Padovan:

From: Gustavo Padovan gustavo.padovan@collabora.co.uk

If userspace is running an synchronously atomic commit and interrupts the atomic operation during fence_wait() it will hang until the timer expires, so here we change the wait to be interruptible so it stop immediately when userspace wants to quit.

Also adds the necessary error checking for fence_wait().

v2: Comment by Daniel Vetter

• Add error checking for fence_wait()

v3: Rebase on top of new atomic noblocking support

Meh, I don't like the swapped parameter much, couldn't we infer it from intr? or rename intr to swapped? If we're not swapped yet, we should always wait interruptibly. When swapped, never..

~Maarten