linux-kernel - Re: [RFC PATCH 0/6] Convert all tasklets to workqueues

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Message-ID: <20070622220901.GA26207@elte.hu>
Date:	Sat, 23 Jun 2007 00:09:01 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Steven Rostedt <rostedt@...dmis.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Christoph Hellwig <hch@...radead.org>,
	john stultz <johnstul@...ibm.com>,
	Oleg Nesterov <oleg@...sign.ru>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Dipankar Sarma <dipankar@...ibm.com>,
	"David S. Miller" <davem@...emloft.net>, matthew.wilcox@...com,
	kuznet@....inr.ac.ru
Subject: Re: [RFC PATCH 0/6] Convert all tasklets to workqueues


* Ingo Molnar <mingo@...e.hu> wrote:

> [ and on a similar notion, i still havent given up on seeing all BKL 
>   use gone from the kernel. I expect it to happen any decade now ;-) ]

2.6.21 had 476 lock_kernel() calls. 2.6.22-git has 473 lock_kernel() 
calls currently. With that kind of flux we'll see the BKL gone in about 
40 years =B-)

'struct semaphore' use on the other hand has gone down by 10% in this 
release, which is a good rate. I guess the lack of lockdep coverage for 
semaphores might be one of the driving forces? ;-)

	Ingo
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