linux-kernel - Re: [GIT, RFC] Killing the Big Kernel Lock

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Message-Id: <201003251406.10177.arnd@arndb.de>
Date:	Thu, 25 Mar 2010 14:06:10 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	Jiri Kosina <jkosina@...e.cz>
Cc:	Frederic Weisbecker <fweisbec@...il.com>,
	linux-kernel@...r.kernel.org, Matthew Wilcox <matthew@....cx>,
	Thomas Gleixner <tglx@...utronix.de>, jblunck@...e.de,
	Alan Cox <alan@...ux.intel.com>, Ingo Molnar <mingo@...e.hu>
Subject: Re: [GIT, RFC] Killing the Big Kernel Lock

On Thursday 25 March 2010, Jiri Kosina wrote:
> On Wed, 24 Mar 2010, Arnd Bergmann wrote:
> 
> > I've spent some time continuing the work of the people on Cc and many others
> > to remove the big kernel lock from Linux and I now have bkl-removal branch
> > in my git tree at git://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git
> > that lets me run a kernel on my quad-core machine with the only users of the BKL
> > being mostly obscure device driver modules.
> 
>         config USB
>                 tristate "Support for Host-side USB"
>                 depends on USB_ARCH_HAS_HCD && BKL
> 
> Well, that's very interesting definition of "obscure" :)
> 

That's why I said /mostly/ obscure modules. There are soundcore, usb-core, drm,
vfat and a few other very common ones, along with many obscure ones.

	Arnd
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