Re: [PATCH] arm64: mm: fix linear mapping mem access performace degradation

[Leizhen (ThunderTown)]

On 2022/6/26 19:10, Guanghui Feng wrote:
> +void __init mapping_crashkernel(void)
> +{
> +	if (can_set_direct_map() || IS_ENABLED(CONFIG_KFENCE))
> +	    return;
> +
> +	if (!crash_mem_map || !crashk_res.end)
> +	    return;

All the code related to crash_mem_map can be removed now.

> +
> +	map_crashkernel(swapper_pg_dir, crashk_res.start,
> +			crashk_res.end + 1, PAGE_KERNEL,
> +			NO_BLOCK_MAPPINGS | NO_CONT_MAPPINGS);
> +}

-- 
Regards,
  Zhen Lei