original_mask
backward_mask = original_mask(target_entry1->class->usage_mask & LOCKF_ENABLED_IRQ_ALL);
if (sched_getaffinity(0, sizeof(ctx->original_mask),
&ctx->original_mask)) {
cpu = find_nohz_full_cpu(&ctx->original_mask);
controller_mask = ctx->original_mask;
sched_setaffinity(0, sizeof(ctx->original_mask), &ctx->original_mask);
cpu_set_t original_mask;