linux-kernel - Re: Unnecessary BKL contention in video1394

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Date:	Thu, 19 Oct 2006 16:36:09 +0200
From:	Stefan Richter <stefanr@...6.in-berlin.de>
To:	Andi Kleen <ak@...e.de>
CC:	Daniel Drake <ddrake@...ntes3d.com>,
	linux1394-devel@...ts.sourceforge.net, linux-kernel@...r.kernel.org
Subject: Re: Unnecessary BKL contention in video1394

Andi Kleen wrote:
[Daniel Drake wrote:]
>> Adding Andi Kleen to CC, who added the BKL around __video1394_ioctl a
>> long while back (when converting video1394 to compat_ioctl).
>> 
>> I don't feel that any replacement protection is needed, since the
>> critical sections (where structures are used both in interrupts and in
>> file_operations) are already protected by spinlocks.
> 
> Fine by me. I just did it to preserve old semantics because I didn't want
> to audit the 1394 locking.  But if you think it's not needed feel free to remove
> them.

Thanks for the info. Daniel, do you want to resend a signed-off patch?
And __video1394_ioctl and its wrapper video1394_ioctl can certainly be
merged then.
-- 
Stefan Richter
-=====-=-==- =-=- =--==
http://arcgraph.de/sr/
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