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From: Richard Cochran <richardcochran@gmail.com>
To: Mahesh Bandewar <maheshb@google.com>
Cc: Netdev <netdev@vger.kernel.org>,
	Linux <linux-kernel@vger.kernel.org>,
	David Miller <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	Eric Dumazet <edumazet@google.com>,
	Paolo Abeni <pabeni@redhat.com>, Jonathan Corbet <corbet@lwn.net>,
	Don Hatchett <hatch@google.com>,
	Yuliang Li <yuliangli@google.com>,
	Mahesh Bandewar <mahesh@bandewar.net>,
	Rahul Rameshbabu <rrameshbabu@nvidia.com>
Subject: Re: [PATCH 3/4] ptp: add ioctl interface for ptp_gettimex64any()
Date: Sat, 30 Sep 2023 16:07:29 -0700	[thread overview]
Message-ID: <ZRiqMTwkqqXUYPPB@hoboy.vegasvil.org> (raw)
In-Reply-To: <ZRiSQ/fCa3pYZnXJ@hoboy.vegasvil.org>

On Sat, Sep 30, 2023 at 02:25:23PM -0700, Richard Cochran wrote:
> But how about a new system call instead?
> 
>     clock_compare(clockid_t a, clockid_t b);

It could have a third argument, n_samples, that would only be used for
"slow" clocks like PCIe MACs.  The system call would return the offset
from the shortest measurement (which is really what user space needs).

Thanks,
Richard

  reply	other threads:[~2023-09-30 23:07 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-09-29  2:37 Mahesh Bandewar
2023-09-30 21:21 ` Richard Cochran
2023-09-30 21:25 ` Richard Cochran
2023-09-30 23:07   ` Richard Cochran [this message]
2023-10-03  0:29   ` Mahesh Bandewar (महेश बंडेवार)
2023-10-04  4:23     ` Richard Cochran

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