linux-kernel - Re: [PATCH 20/20] BKL: That's all, folks

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Message-ID: <20110126110159.GB27809@elte.hu>
Date:	Wed, 26 Jan 2011 12:01:59 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Alan Cox <alan@...ux.intel.com>
Cc:	Arnd Bergmann <arnd@...db.de>, linux-kernel@...r.kernel.org,
	Alessio Igor Bogani <abogani@...ware.it>,
	Al Viro <viro@...iv.linux.org.uk>,
	Andrew Hendry <andrew.hendry@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Christoph Hellwig <hch@...radead.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Hans Verkuil <hverkuil@...all.nl>,
	Jan Blunck <jblunck@...radead.org>,
	John Kacur <jkacur@...hat.com>,
	Jonathan Corbet <corbet@....net>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Matthew Wilcox <matthew@....cx>,
	Oliver Neukum <oliver@...kum.org>,
	Paul Menage <menage@...gle.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Trond Myklebust <Trond.Myklebust@...app.com>
Subject: Re: [PATCH 20/20] BKL: That's all, folks


* Alan Cox <alan@...ux.intel.com> wrote:

> > Yay!
> > 
> > Acked-by: Ingo Molnar <mingo@...e.hu>
> 
> Acked-by: Alan Cox <alan@...ux.intel.com>
> 
> Nice to see it gone - it seemed such a good idea in Linux 1.3

No need to feel bad about it - there was simply no other way to do it: the BKL 
basically represented all the single-CPU assumptions that were built into the kernel 
from 0.10 up to 1.3 (and at least as much new BKL depending code going forward as 
well ...).

Every last such piece of code had to be eliminated. So the BKL represented the 
status quo - and eliminating the status quo is always hard, as the code that remains 
became less and less important :-)

Thanks,

	Ingo
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