linux-kernel - Re: [RFC v1 0/3] driver-core: add asynch module loading support

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Message-ID: <20140831110526.GE19853@htj.dyndns.org>
Date:	Sun, 31 Aug 2014 07:05:26 -0400
From:	Tejun Heo <tj@...nel.org>
To:	"Luis R. Rodriguez" <mcgrof@...not-panic.com>
Cc:	gregkh@...uxfoundation.org, dmitry.torokhov@...il.com,
	falcon@...zu.com, tiwai@...e.de, arjan@...ux.intel.com,
	linux-kernel@...r.kernel.org, oleg@...hat.com,
	akpm@...ux-foundation.org, penguin-kernel@...ove.sakura.ne.jp,
	joseph.salisbury@...onical.com, bpoirier@...e.de,
	"Luis R. Rodriguez" <mcgrof@...e.com>
Subject: Re: [RFC v1 0/3] driver-core: add asynch module loading support

On Sun, Aug 31, 2014 at 07:02:00AM -0400, Tejun Heo wrote:
> So, something like the following.  A couple things to note
> 
> * driver_attach() can never fail but is marked with __must_check.  We
>   prolly should change it to void.
> 
> * Old/weird userspace which depends on insmod to wait for device
>   probing might choke and the new behavior might need to be switched
>   somehow (sysctl, insmod param or whatever).

One more thing.

* Use of ordered workqueue probably isn't necessary and using
  system_unbound_wq should be fine.

Thanks.

-- 
tejun
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