linux-kernel - Re: [patch 1/8] Processor degredation support.

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Message-ID: <20070328084145.GA3988@ucw.cz>
Date:	Wed, 28 Mar 2007 08:41:45 +0000
From:	Pavel Machek <pavel@....cz>
To:	Heiko Carstens <heiko.carstens@...ibm.com>
Cc:	linux-kernel@...r.kernel.org, linux-s390@...r.kernel.org,
	Martin Schwidefsky <schwidefsky@...ibm.com>
Subject: Re: [patch 1/8] Processor degredation support.

On Wed 2007-03-28 08:54:43, Heiko Carstens wrote:
> > > +++ linux-2.6/drivers/s390/char/sclp_confmgm.c
> > 
> > Can we get less cyptic name?
> 
> Would you like to see sclp_configuration_management.c?

No, but maybe sclp_manager.c or sclp_config.c?


> > > +static void sclp_conf_receiver_fn(struct evbuf_header *evbuf)
> > > +{
> > > +	struct conf_mgm_data *cdata;
> > > +
> > > +	cdata = (struct conf_mgm_data *)(evbuf + 1);
> > > +	if (cdata->ev_qualifier == EV_QUAL_CAP_CHANGE)
> > > +		/* Will be parsed. Don't change. */
> > > +		printk(KERN_WARNING "sclp: CPU capability changed.\n");
> > > +}
> > 
> > What's that? I do not think printk provides guaranteed delivery.
> 
> True. But which generic interface is currently used to notify user space
> of state changes? Maybe a uevent for the cpu device..

Maybe.

							Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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