[Intel-gfx] [PATCH 11/12 v2] drm/i915: wait render timeout ioctl

Chris Wilson chris at chris-wilson.co.uk
Fri Apr 27 10:44:55 CEST 2012

On Thu, 26 Apr 2012 16:03:08 -0700, Ben Widawsky <ben at bwidawsk.net> wrote:
> +	mutex_unlock(&dev->struct_mutex);
> +	ret = __wait_seqno(ring, seqno, true, &timeout);
> +	drm_gem_object_unreference_unlocked(&obj->base);

Once we have the seqno to wait on, we can drop the reference to the
object. The reference to the ring will be persist whilst the device is
open. Just saves doing an unsightly unlock/lock dance in the unref.

Chris Wilson, Intel Open Source Technology Centre

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