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Date: Wed, 24 Mar 2010 23:23:24 +0100
From: Ingo Molnar <mingo@elte.hu>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Frederic Weisbecker <fweisbec@gmail.com>, linux-kernel@vger.kernel.org,
       Matthew Wilcox <matthew@wil.cx>, Thomas Gleixner <tglx@linutronix.de>,
       jblunck@suse.de, Alan Cox <alan@linux.intel.com>,
       Linus Torvalds <torvalds@linux-foundation.org>,
       Andrew Morton <akpm@linux-foundation.org>,
       Jonathan Corbet <corbet@lwn.net>
Subject: Re: [GIT, RFC] Killing the Big Kernel Lock
Message-ID: <20100324222324.GA31154@elte.hu>
References: <201003242240.54907.arnd@arndb.de>
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* Arnd Bergmann <arnd@arndb.de> wrote:

> I've built-tested an allmodconfig kernel with CONFIG_BKL disabled on x86_64, 
> i386, powerpc64, powerpc32, s390 and arm to make sure I catch all the 
> modules that depend on BKL, and I've been running various versions of this 
> tree on my desktop machine over the last few weeks while adding stuff.

Very nice work!

How about going one step further:

 - remove CONFIG_BKL altogether
 - remove all the remains of the BKL code in lib/kernel_lock.c and kernel/sched.c
 - turn lock_kernel() into a WARN_ONCE() and unlock_kernel() into a NOP.
 - ...
 - Celebrate! :-)

	Ingo