From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Andi Kleen <andi@firstfloor.org>
Cc: Greg KH <greg@kroah.com>, "Rafael J. Wysocki" <rjw@sisk.pl>,
Nathan Lynch <ntl@pobox.com>,
Andrew Morton <akpm@linux-foundation.org>,
Paul Mackerras <paulus@samba.org>,
torvalds@linux-foundation.org, linux-kernel@vger.kernel.org
Subject: Re: Removing sysdevs?
Date: Thu, 03 Jul 2008 08:17:58 +1000 [thread overview]
Message-ID: <1215037078.21182.62.camel@pasglop> (raw)
In-Reply-To: <486BF9AC.6070704@firstfloor.org>
On Wed, 2008-07-02 at 23:57 +0200, Andi Kleen wrote:
> > The plan is:
> > - remaining driver core cleanups to allow for multiple drivers
> > to be bound to individual devices
> > - add multiple binding support to the core
> > - migrate existing sysdevs to struct device, now that multiple
> > binding is allowed
> > - delete sysdev structure
> > - profit!
>
> I hope the sysdev semantics of running with interrupts etc. will be kept?
What "running with interrupts" ? :-) Are you talking specifically about
suspend/resume ? In this case, normal devices also provide irq_off
variants of suspend/resume.
In some areas, those semantics are even a problem for sysdevs. For
example, it's been a pain in the neck for cpufreq on powermac not to be
able to schedule in its suspend routine. Among others...
Cheers,
Ben.
next prev parent reply other threads:[~2008-07-02 22:18 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-02 6:27 Is sysfs the right place to get cache and CPU topology info? Paul Mackerras
2008-07-02 7:37 ` Andrew Morton
2008-07-02 9:45 ` Paul Mackerras
2008-07-02 10:01 ` Andrew Morton
2008-07-02 11:46 ` Paul Mackerras
2008-07-02 16:47 ` Andrew Morton
2008-07-02 11:12 ` Andi Kleen
2008-07-02 14:35 ` Nathan Lynch
2008-07-02 15:14 ` Andi Kleen
2008-07-02 18:51 ` Greg KH
2008-07-02 21:41 ` Removing sysdevs? (was: Re: Is sysfs the right place to get cache and CPU topology info?) Rafael J. Wysocki
2008-07-02 21:48 ` Greg KH
2008-07-02 21:57 ` Removing sysdevs? Andi Kleen
2008-07-02 22:15 ` Greg KH
2008-07-03 9:53 ` Andi Kleen
2008-07-04 1:09 ` Greg KH
2008-07-02 22:17 ` Benjamin Herrenschmidt [this message]
2008-07-02 22:08 ` Removing sysdevs? (was: Re: Is sysfs the right place to get cache and CPU topology info?) Rafael J. Wysocki
2008-07-02 22:16 ` Greg KH
2008-07-02 23:06 ` Rafael J. Wysocki
2008-07-02 17:08 ` [PATCH] sysfs-rules.txt: reword API stability statement Nathan Lynch
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