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From: Tejun Heo <tj@kernel.org>
To: Greg KH <gregkh@linuxfoundation.org>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>,
	Arjan van de Ven <arjan@linux.intel.com>,
	"Luis R. Rodriguez" <mcgrof@do-not-panic.com>,
	falcon@meizu.com, tiwai@suse.de, linux-kernel@vger.kernel.org,
	oleg@redhat.com, akpm@linux-foundation.org,
	penguin-kernel@i-love.sakura.ne.jp,
	joseph.salisbury@canonical.com, bpoirier@suse.de,
	"Luis R. Rodriguez" <mcgrof@suse.com>
Subject: Re: [RFC v1 0/3] driver-core: add asynch module loading support
Date: Sun, 31 Aug 2014 17:53:13 -0400	[thread overview]
Message-ID: <20140831215313.GA28690@mtj.dyndns.org> (raw)
In-Reply-To: <20140831204035.GA4793@kroah.com>

Hello, Greg.

On Sun, Aug 31, 2014 at 01:40:35PM -0700, Greg KH wrote:
> > Right, all (well almost all) I wanted is for individual drivers to declare
> > their probe() functions asynchronous and driver core scheduling async attach
> > and properly handle failures from it.
> 
> Yes, that's what I want as well.
> 
> Luis, care to redo the patches in this way?  It should be a lot simpler
> (no messing around with init levels and linker fun...)

I don't think binding that switch to the driver is gonna work.  This
is mainly about the behavior expected by the entity which initiated
module loading not about specific drivers.  I'm fairly certain that
there are userland scripts which depend on synchronous device probing
on module loading, especially for storage devices, so we can't simply
mark, say, libata as needing async probing and do it always
asynchronously.

Thanks.

-- 
tejun

  reply	other threads:[~2014-08-31 21:53 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-31  9:03 Luis R. Rodriguez
2014-08-31  9:03 ` [RFC v1 1/3] driver-core: split module_init() and module_exit() Luis R. Rodriguez
2014-08-31  9:03 ` [RFC v1 2/3] async: move synchronous caller into a helper Luis R. Rodriguez
2014-08-31  9:03 ` [RFC v1 3/3] async: add driver asynch levels Luis R. Rodriguez
2014-08-31 10:13 ` [RFC v1 0/3] driver-core: add asynch module loading support Tejun Heo
2014-08-31 11:02   ` Tejun Heo
2014-08-31 11:05     ` Tejun Heo
2014-08-31 17:52       ` Dmitry Torokhov
2014-08-31 19:26         ` Arjan van de Ven
2014-08-31 20:11           ` Dmitry Torokhov
2014-08-31 11:25     ` David Herrmann
2014-08-31 11:38       ` Tejun Heo
2014-08-31 18:28   ` Dmitry Torokhov
2014-08-31 22:02     ` Tejun Heo
2014-08-31 23:06       ` Dmitry Torokhov
2014-08-31 23:40         ` Tejun Heo
2014-08-31 14:44 ` Arjan van de Ven
2014-08-31 17:50   ` Dmitry Torokhov
2014-08-31 19:24     ` Arjan van de Ven
2014-08-31 19:31       ` Greg KH
2014-08-31 20:14         ` Dmitry Torokhov
2014-08-31 20:40           ` Greg KH
2014-08-31 21:53             ` Tejun Heo [this message]
2014-08-31 22:15               ` Greg KH
2014-08-31 22:53                 ` Tejun Heo
2014-08-31 23:20                   ` Arjan van de Ven
2014-08-31 23:29                     ` Tejun Heo
2014-08-31 22:51               ` Dmitry Torokhov
2014-08-31 23:03                 ` Tejun Heo
2014-09-04 21:21             ` Luis R. Rodriguez
2014-09-04 21:52               ` Greg KH
2014-08-31 16:41 ` Greg KH
     [not found] <99jhsb6abtsilpt3j5nu991b.1409513632114@email.android.com>
2014-08-31 22:32 ` Arjan van de Ven
2014-08-31 22:45   ` Dmitry Torokhov
2014-08-31 22:48     ` Arjan van de Ven

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