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Re: [announce] "kill the Big Kernel Lock (BKL)" tree

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From: Linus Torvalds
Subject: Re: [announce] "kill the Big Kernel Lock (BKL)" tree
Date: Wednesday, May 14, 2008 - 3:11 pm

On Wed, 14 May 2008, Alan Cox wrote:

resource requests aren't blocking, so it wouldn't actually be a deadlock. 
It would just be a "both failed, try again".

That said, two drivers shouldn't be probing the same hardware at the same 
time regardless, so I can't imagine that it's much of a problem in real 
life. 

		Linus
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Messages in current thread:
[announce] "kill the Big Kernel Lock (BKL)" tree, Ingo Molnar, (Wed May 14, 10:49 am)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree, Andi Kleen, (Wed May 14, 11:30 am)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree, Linus Torvalds, (Wed May 14, 11:41 am)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree, Ingo Molnar, (Wed May 14, 12:41 pm)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree, Frederik Deweerdt, (Wed May 14, 1:05 pm)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree, Alan Cox, (Wed May 14, 2:00 pm)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree, Andi Kleen, (Wed May 14, 2:13 pm)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree, H. Peter Anvin, (Wed May 14, 2:16 pm)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree, Alan Cox, (Wed May 14, 2:17 pm)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree, Alan Cox, (Wed May 14, 2:19 pm)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree, Alan Cox, (Wed May 14, 2:39 pm)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree , Jonathan Corbet, (Wed May 14, 2:45 pm)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree, Linus Torvalds, (Wed May 14, 2:45 pm)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree, Alan Cox, (Wed May 14, 2:46 pm)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree , Linus Torvalds, (Wed May 14, 2:56 pm)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree, Andi Kleen, (Wed May 14, 3:03 pm)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree , Jonathan Corbet, (Wed May 14, 3:07 pm)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree, Linus Torvalds, (Wed May 14, 3:11 pm)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree, Andi Kleen, (Wed May 14, 3:11 pm)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree , Linus Torvalds, (Wed May 14, 3:14 pm)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree, Andi Kleen, (Wed May 14, 3:15 pm)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree, Linus Torvalds, (Wed May 14, 3:16 pm)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree, Andi Kleen, (Wed May 14, 3:21 pm)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree, Ingo Molnar, (Thu May 15, 1:02 am)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree , Jan Engelhardt, (Thu May 15, 1:44 am)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree, Alan Cox, (Thu May 15, 6:30 am)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree, Alan Cox, (Thu May 15, 6:34 am)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree, Andi Kleen, (Thu May 15, 7:27 am)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree, Diego Calleja, (Thu May 15, 7:54 am)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree, John Stoffel, (Thu May 15, 8:05 am)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree, Andi Kleen, (Thu May 15, 8:10 am)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree, John Stoffel, (Thu May 15, 8:18 am)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree, Alan Cox, (Thu May 15, 8:36 am)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree, Andi Kleen, (Thu May 15, 8:45 am)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree, Linus Torvalds, (Thu May 15, 10:41 am)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree, Arjan van de Ven, (Thu May 15, 1:27 pm)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree, Peter Zijlstra, (Thu May 15, 1:45 pm)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree, Arjan van de Ven, (Thu May 15, 2:22 pm)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree, Andi Kleen, (Fri May 16, 3:21 am)
[PATCH, RFC] char dev BKL pushdown , Jonathan Corbet, (Fri May 16, 8:44 am)
Re: [PATCH, RFC] char dev BKL pushdown, Christoph Hellwig, (Fri May 16, 8:49 am)
[PATCH] kill empty chardev open/release methods, Christoph Hellwig, (Fri May 16, 9:03 am)
Re: [PATCH, RFC] char dev BKL pushdown, Alan Cox, (Fri May 16, 9:22 am)
Re: [PATCH] kill empty chardev open/release methods, Alan Cox, (Fri May 16, 9:24 am)
Re: [PATCH, RFC] char dev BKL pushdown , Linus Torvalds, (Fri May 16, 9:30 am)
Re: [PATCH, RFC] char dev BKL pushdown , Jonathan Corbet, (Fri May 16, 9:43 am)
Re: [PATCH] kill empty chardev open/release methods, Alan Cox, (Fri May 16, 1:55 pm)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree, Kevin Winchester, (Fri May 16, 5:14 pm)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree, Kevin Winchester, (Fri May 16, 5:37 pm)
Re: [PATCH, RFC] char dev BKL pushdown, Arnd Bergmann, (Sat May 17, 2:15 pm)
Re: [PATCH, RFC] char dev BKL pushdown , Linus Torvalds, (Sat May 17, 2:58 pm)
Re: [PATCH] kill empty chardev open/release methods , Jonathan Corbet, (Sun May 18, 12:46 pm)
Re: [PATCH] kill empty chardev open/release methods, Alan Cox, (Sun May 18, 12:58 pm)
Re: [PATCH, RFC] char dev BKL pushdown , Jonathan Corbet, (Sun May 18, 1:07 pm)
Re: [PATCH, RFC] char dev BKL pushdown , Jonathan Corbet, (Sun May 18, 1:26 pm)
Re: [PATCH, RFC] char dev BKL pushdown, Arnd Bergmann, (Mon May 19, 4:07 pm)
[PATCH 1/3, RFC] misc char dev BKL pushdown, Arnd Bergmann, (Mon May 19, 4:26 pm)
[PATCH 3/3, RFC] remove BKL from misc_open(), Arnd Bergmann, (Mon May 19, 4:34 pm)
Re: [PATCH 1/3, RFC] misc char dev BKL pushdown, Mike Frysinger, (Mon May 19, 5:07 pm)
Re: [PATCH 1/3, RFC] misc char dev BKL pushdown , Jonathan Corbet, (Mon May 19, 5:21 pm)
Re: [PATCH 1/3, RFC] misc char dev BKL pushdown, Mike Frysinger, (Mon May 19, 5:46 pm)
Re: [PATCH 1/3, RFC] misc char dev BKL pushdown, Alan Cox, (Tue May 20, 1:46 am)
Re: [PATCH, RFC] char dev BKL pushdown , Jonathan Corbet, (Tue May 20, 8:13 am)
Re: [PATCH, RFC] char dev BKL pushdown, Arnd Bergmann, (Tue May 20, 10:21 am)
Re: [PATCH, RFC] char dev BKL pushdown, Alan Cox, (Tue May 20, 11:51 am)
Re: [PATCH 1/3, RFC] misc char dev BKL pushdown, Mike Frysinger, (Tue May 20, 4:01 pm)
Re: [PATCH 1/3, RFC] misc char dev BKL pushdown , Jonathan Corbet, (Tue May 20, 4:25 pm)
Re: [PATCH 1/3, RFC] misc char dev BKL pushdown, Mike Frysinger, (Wed May 21, 9:22 am)
Re: [announce] "kill the Big Kernel Lock (BKL)" tree, Alan Cox, (Thu May 22, 1:20 pm)