linux-kernel - Re: [PATCH RESEND] nvme: fine-tune sending of first keep-alive

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Message-ID: <ZWTfupMR9IPjB5ox@kbusch-mbp.dhcp.thefacebook.com>
Date:   Mon, 27 Nov 2023 11:28:10 -0700
From:   Keith Busch <kbusch@...nel.org>
To:     Mark O'Donovan <shiftee@...teo.net>
Cc:     linux-kernel@...r.kernel.org, linux-nvme@...ts.infradead.org,
        sagi@...mberg.me, hch@....de, axboe@...nel.dk, hare@...e.de
Subject: Re: [PATCH RESEND] nvme: fine-tune sending of first keep-alive

On Fri, Nov 24, 2023 at 08:56:59PM +0000, Mark O'Donovan wrote:
> Keep-alive commands are sent half-way through the kato period.
> This normally works well but fails when the keep-alive system is
> started when we are more than half way through the kato.
> This can happen on larger setups or due to host delays.
> With this change we now time the initial keep-alive command from
> the controller initialisation time, rather than the keep-alive
> mechanism activation time.

Thanks, applied to nvme-6.7.