[PATCH v2 10/17] drm/i915/vm_bind: Abstract out common execbuf functions

[Andi Shyti]

Hi Niranjana,

[...]

> +	for_each_child(ce, child) {
> +		err = intel_context_pin_ww(child, ww);
> +		GEM_BUG_ON(err);	/* perma-pinned should incr a counter */
> +	}
> +
> +	for_each_child(ce, child) {
> +		err = eb_pin_timeline(child, throttle, nonblock);
> +		if (err)
> +			goto unwind;
> +		++i;
> +	}

any reason for having two separate for_each_child here?

Andi

> +	err = eb_pin_timeline(ce, throttle, nonblock);
> +	if (err)
> +		goto unwind;
> +
> +	return 0;
> +
> +unwind:
> +	for_each_child(ce, child) {
> +		if (j++ < i) {
> +			mutex_lock(&child->timeline->mutex);
> +			intel_context_exit(child);
> +			mutex_unlock(&child->timeline->mutex);
> +		}
> +	}
> +	for_each_child(ce, child)
> +		intel_context_unpin(child);

[...]