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From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
To: Youquan Song <youquan.song@linux.intel.com>
Cc: <linux-pm@vger.kernel.org>, <youquan.song@intel.com>
Subject: Re: [PATCH] PM/QoS: resume latency 0 should be not latency allowed
Date: Wed, 10 Nov 2021 20:24:12 +0100	[thread overview]
Message-ID: <2d01125c-facd-6db6-23d3-b0b1b608c4e8@intel.com> (raw)
In-Reply-To: <20211110105833.GA30301@linux-youquan.bj.intel.com>

On 11/10/2021 11:58 AM, Youquan Song wrote:
>> But do you really need to make these changes?  What problem is there with using the interface as currently documented, ie. writing "n/a" to it to get "no latency at all"?
> I think so. "0" is "latency is not allowed", but "n/a" is "no latency".
>
Actually, "0" means "I don't care" and "n/a" means "no latency" which 
means latency tolerance == 0.



  parent reply	other threads:[~2021-11-10 19:24 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-01 11:36 [PATCH] PM/QoS: resume latency 0 should be not latency allowed Youquan Song
2021-11-05 15:50 ` Rafael J. Wysocki
     [not found]   ` <BYAPR11MB3205164D85635F784AFA4C429C939@BYAPR11MB3205.namprd11.prod.outlook.com>
     [not found]     ` <20211110105833.GA30301@linux-youquan.bj.intel.com>
2021-11-10 19:24       ` Rafael J. Wysocki [this message]
2021-11-11  4:28         ` Youquan Song
2021-11-11 17:07           ` Rafael J. Wysocki

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