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2020 Apr 08
0
[RFC PATCH 15/26] x86/alternatives: Non-emulated text poking
...e)
> +{
> + int ret;
> +
> + lockdep_assert_held(&text_mutex);
> +
> + if (system_state != SYSTEM_RUNNING)
> + return -EINVAL;
> +
> + text_poke_state.stage = stage;
> + text_poke_state.num_acks = cpumask_weight(cpu_online_mask);
> + text_poke_state.head = &alt_modules;
> +
> + text_poke_state.patch_worker = worker;
> + text_poke_state.state = PATCH_SYNC_DONE; /* Start state */
> + text_poke_state.primary_cpu = smp_processor_id();
> +
> + /*
> + * Run the worker on all online CPUs. Don't need to do anything
> + * for offline CPUs as...