On Thu, 20 Jun 2024 00:48:55 +0200
Vlastimil Babka wrote:
> +static int debugfs_prob_set(void *data, u64 val)
> +{
> + struct fault_attr *attr = data;
> +
> + mutex_lock(_mutex);
> +
> + if (attr->active) {
> + if (attr->probability != 0 && val == 0) {
> +
Some fault injection sites are placed in hotpaths and incur overhead
even if not enabled, due to one or more function calls leading up to
should_fail_ex() that returns false due to attr->probability == 0.
This overhead can be eliminated if the outermost call into the checks is
guarded with a
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