linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Mark Brown <broonie@kernel.org>
Cc: "Oleksij Rempel" <o.rempel@pengutronix.de>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	"Ulf Hansson" <ulf.hansson@linaro.org>,
	kernel@pengutronix.de, linux-kernel@vger.kernel.org,
	linux-mmc@vger.kernel.org, linux-pm@vger.kernel.org,
	"Søren Andersen" <san@skov.dk>
Subject: Re: [PATCH v1 0/3] introduce priority-based shutdown support
Date: Fri, 24 Nov 2023 15:56:19 +0000	[thread overview]
Message-ID: <2023112435-dazzler-crisped-04a6@gregkh> (raw)
In-Reply-To: <ZWDGGqsCq9iSnHtO@finisterre.sirena.org.uk>

On Fri, Nov 24, 2023 at 03:49:46PM +0000, Mark Brown wrote:
> On Fri, Nov 24, 2023 at 03:27:48PM +0000, Greg Kroah-Hartman wrote:
> > On Fri, Nov 24, 2023 at 03:21:40PM +0000, Mark Brown wrote:
> 
> > > This came out of some discussions about trying to handle emergency power
> > > failure notifications.
> 
> > I'm sorry, but I don't know what that means.  Are you saying that the
> > kernel is now going to try to provide a hard guarantee that some devices
> > are going to be shut down in X number of seconds when asked?  If so, why
> > not do this in userspace?
> 
> No, it was initially (or when I initially saw it anyway) handling of
> notifications from regulators that they're in trouble and we have some
> small amount of time to do anything we might want to do about it before
> we expire.

So we are going to guarantee a "time" in which we are going to do
something?  Again, if that's required, why not do it in userspace using
a RT kernel?

thanks,

greg k-h

  reply	other threads:[~2023-11-24 15:56 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-24 14:53 [PATCH v1 0/3] introduce priority-based shutdown support Oleksij Rempel
2023-11-24 14:53 ` [PATCH v1 1/3] driver core: move core part of device_shutdown() to a separate function Oleksij Rempel
2023-11-24 15:07   ` Greg Kroah-Hartman
2023-11-24 20:04   ` kernel test robot
2023-11-24 14:53 ` [PATCH v1 2/3] driver core: introduce prioritized device shutdown sequence Oleksij Rempel
2023-11-24 15:10   ` Greg Kroah-Hartman
2023-11-24 14:53 ` [PATCH v1 3/3] mmc: core: increase shutdown priority for MMC devices Oleksij Rempel
2023-11-24 15:05 ` [PATCH v1 0/3] introduce priority-based shutdown support Greg Kroah-Hartman
2023-11-24 15:21   ` Mark Brown
2023-11-24 15:27     ` Greg Kroah-Hartman
2023-11-24 15:49       ` Mark Brown
2023-11-24 15:56         ` Greg Kroah-Hartman [this message]
2023-11-24 16:32           ` Oleksij Rempel
2023-11-24 17:26             ` Greg Kroah-Hartman
2023-11-24 18:57               ` Oleksij Rempel
2023-11-25  6:51                 ` Greg Kroah-Hartman
2023-11-25  8:50                   ` Oleksij Rempel
2023-11-25  9:09                     ` Greg Kroah-Hartman
2023-11-25 10:30                       ` Mark Brown
2023-11-25 14:35                         ` Greg Kroah-Hartman
2023-11-25 15:43                           ` Mark Brown
2023-11-25 19:58                             ` Greg Kroah-Hartman
2023-11-26 10:14                               ` Mark Brown
2023-11-26 19:31                                 ` Oleksij Rempel
2023-11-27 11:27                                   ` Christian Loehle
2023-11-27 11:44                                     ` Oleksij Rempel
2023-11-27 11:57                                       ` Christian Loehle
2023-11-26 19:42                                 ` Ferry Toth
2023-11-27 14:09                                   ` Mark Brown
2023-11-27 10:13                     ` Christian Loehle
2023-11-27 11:36                       ` Oleksij Rempel
2023-11-30 21:59                         ` Francesco Dolcini
2023-11-27 12:54               ` Matti Vaittinen
2023-11-27 13:08                 ` Greg Kroah-Hartman
2023-11-27 14:24                   ` Mark Brown
2023-11-27 14:49                   ` Matti Vaittinen
2023-11-27 16:23                     ` Mark Brown
2023-11-30  9:57 ` Ulf Hansson

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=2023112435-dazzler-crisped-04a6@gregkh \
    --to=gregkh@linuxfoundation.org \
    --cc=broonie@kernel.org \
    --cc=kernel@pengutronix.de \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mmc@vger.kernel.org \
    --cc=linux-pm@vger.kernel.org \
    --cc=o.rempel@pengutronix.de \
    --cc=rafael@kernel.org \
    --cc=san@skov.dk \
    --cc=ulf.hansson@linaro.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).