Quoting Zhi Wang (2017-09-08 19:06:39)
> + /* case 3: negative test 2, suppose PPAT table is still full now */
> + value = generate_new_value(ppat, value_for_negative_test);
> + if (!value) {
> + pr_err("fail to generate new value for negative test 2\n");
> + ret = -EINVAL;
> + goto ppat_put;
> + }
> +
> + entry = intel_ppat_get(i915, value);
> + if (!IS_ERR(entry) || PTR_ERR(entry) != -ENOSPC) {
> + pr_err("fail on negative test\n");
> + ret = -EINVAL;
> + }
Then make a hole and it should work again, that's what I meant. Which I
think is important for long running systems :)
-Chris
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