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Re: [PATCH] video4linux: Push down the BKL

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From: Devin Heitmueller <devin.heitmueller@...>
To: Mauro Carvalho Chehab <mchehab@...>
Cc: Jonathan Corbet <corbet@...>, Alan Cox <alan@...>, <video4linux-list@...>, <linux-kernel@...>, Alan Cox <alan@...>
Subject: Re: [PATCH] video4linux: Push down the BKL
Date: Tuesday, May 27, 2008 - 3:26 pm

Hello Mauro,

On Tue, May 27, 2008 at 2:59 PM, Mauro Carvalho Chehab
<mchehab@infradead.org> wrote:

Please bear in mind that we have not worked out the locking semantics
for hybrid tuner devices, and it's entirely possible that the get()
routines will need to switch the tuner mode, which would eliminate any
benefits of converting to a read/write semaphore.

I'm not sure yet exactly how that's going to work, but it's something
that might prompt you to defer converting it from a mutex until we
have that worked out.

-- 
Devin J. Heitmueller
http://www.devinheitmueller.com
AIM: devinheitmueller
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Messages in current thread:
[PATCH] video4linux: Push down the BKL, Alan Cox, (Thu May 22, 5:37 pm)
Re: [PATCH] video4linux: Push down the BKL, Mauro Carvalho Chehab, (Mon May 26, 12:59 pm)
Re: [PATCH] video4linux: Push down the BKL, Alan Cox, (Mon May 26, 4:23 pm)
Re: [PATCH] video4linux: Push down the BKL, Mauro Carvalho Chehab, (Mon May 26, 5:10 pm)
Re: [PATCH] video4linux: Push down the BKL, Alan Cox, (Mon May 26, 6:01 pm)
Re: [PATCH] video4linux: Push down the BKL, Mauro Carvalho Chehab, (Tue May 27, 9:10 am)
Re: [PATCH] video4linux: Push down the BKL, Jonathan Corbet, (Tue May 27, 11:41 am)
Re: [PATCH] video4linux: Push down the BKL, Mauro Carvalho Chehab, (Tue May 27, 12:31 pm)
Re: [PATCH] video4linux: Push down the BKL, Alan Cox, (Tue May 27, 2:14 pm)
Re: [PATCH] video4linux: Push down the BKL, Jonathan Corbet, (Tue May 27, 12:37 pm)
Re: [PATCH] video4linux: Push down the BKL, Mauro Carvalho Chehab, (Tue May 27, 2:59 pm)
Re: [PATCH] video4linux: Push down the BKL, Arjan van de Ven, (Tue May 27, 3:50 pm)
Re: [PATCH] video4linux: Push down the BKL, Mauro Carvalho Chehab, (Tue May 27, 4:24 pm)
Re: [PATCH] video4linux: Push down the BKL, Devin Heitmueller, (Tue May 27, 3:26 pm)
Re: [PATCH] video4linux: Push down the BKL, Mauro Carvalho Chehab, (Tue May 27, 5:00 pm)
Re: [PATCH] video4linux: Push down the BKL, Andy Walls, (Tue May 27, 7:48 pm)
Re: [PATCH] video4linux: Push down the BKL, Devin Heitmueller, (Tue May 27, 8:46 pm)
Re: [PATCH] video4linux: Push down the BKL, Hans Verkuil, (Wed May 28, 2:13 am)
Re: [PATCH] video4linux: Push down the BKL, Andy Walls, (Tue May 27, 10:37 pm)
Re: [PATCH] video4linux: Push down the BKL, Alan Cox, (Wed May 28, 4:34 am)
Re: [PATCH] video4linux: Push down the BKL, Devin Heitmueller, (Tue May 27, 10:47 pm)
Re: [PATCH] video4linux: Push down the BKL, Devin Heitmueller, (Tue May 27, 5:22 pm)
Re: [PATCH] video4linux: Push down the BKL, Mike Isely, (Sun May 25, 7:46 pm)
Re: [PATCH] video4linux: Push down the BKL, Hans Verkuil, (Fri May 23, 3:05 pm)
Re: [PATCH] video4linux: Push down the BKL , Jonathan Corbet, (Fri May 23, 9:56 am)
Re: [PATCH] video4linux: Push down the BKL, Alan Cox, (Fri May 23, 11:39 am)
Re: [PATCH] video4linux: Push down the BKL , Jonathan Corbet, (Fri May 23, 12:09 pm)
Re: [PATCH] video4linux: Push down the BKL, Alan Cox, (Fri May 23, 2:58 pm)
Re: [PATCH] video4linux: Push down the BKL, Andy Walls, (Thu May 22, 10:08 pm)
Re: [PATCH] video4linux: Push down the BKL, Alan Cox, (Fri May 23, 5:09 am)
Re: [PATCH] video4linux: Push down the BKL, Mauro Carvalho Chehab, (Mon May 26, 12:34 pm)
Re: [PATCH] video4linux: Push down the BKL, Hans Verkuil, (Mon May 26, 12:46 pm)
Re: [PATCH] video4linux: Push down the BKL, Mauro Carvalho Chehab, (Mon May 26, 5:14 pm)
Re: [PATCH] video4linux: Push down the BKL, Hans Verkuil, (Fri May 23, 2:16 am)
Re: [PATCH] video4linux: Push down the BKL, Mauro Carvalho Chehab, (Mon May 26, 12:39 pm)
Re: [PATCH] video4linux: Push down the BKL, Hans Verkuil, (Fri May 23, 2:28 am)