Re: [PATCH 2/2] block/mq-deadline: add module parameter for prio_aging_expire default

Bart Van Assche <[email protected]> Thu, 20 Aug 2026 08:54:48 -0700

Newsgroups	org.kernel.vger.linux-block
Message-ID	<[email protected]>

On 8/19/26 7:12 PM, Ye Bin wrote:
> -static const int prio_aging_expire = 10 * HZ;
> +static int prio_aging_expire = 10 * MSEC_PER_SEC;
> +module_param(prio_aging_expire, int, 0644);
> +MODULE_PARM_DESC(prio_aging_expire,
> +		 "Default prio_aging_expire in milliseconds; 0 disables I/O priority.");
Disabling I/O priority support by setting prio_aging_expire is ugly
and probably will confuse users. There must be better solutions.

Bart.