linux-kernel - Re: [RFC PATCH 00/13] firmware loader: introduce cache/uncache firmware

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Date:	Wed, 25 Jul 2012 20:50:20 +0800
From:	Ming Lei <ming.lei@...onical.com>
To:	Oliver Neukum <oneukum@...e.de>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Borislav Petkov <borislav.petkov@....com>,
	linux-kernel@...r.kernel.org, Matthew Garrett <mjg@...hat.com>,
	linux-usb <linux-usb@...r.kernel.org>,
	Alan Stern <stern@...land.harvard.edu>
Subject: Re: [RFC PATCH 00/13] firmware loader: introduce cache/uncache firmware

On Wed, Jul 25, 2012 at 8:43 PM, Oliver Neukum <oneukum@...e.de> wrote:
> This is likely unwise. You'd better introduce a special flag for kernel threads
> that should be thawed only after user space will have been thawed.

IMO, it is not necessary to introduce one extra flag for the purpose since

     - usermodehelper flag should be set/get as enabled after user space
       tasks have been waken up

     - no harm to thaw all user space tasks before thawing all kernel threads
     (there isn't any dependency about the thawing order)

Thanks,
--
Ming Lei
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