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Date: Thu, 2 Aug 2007 13:45:57 +0200
From: Ingo Molnar <mingo@elte.hu>
To: Lee Revell <rlrevell@joe-job.com>
Cc: Peter Zijlstra <peterz@infradead.org>, Kasper Sandberg <lkml@metanurb.dk>,
       Linus Torvalds <torvalds@linux-foundation.org>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
       ck@vds.kolivas.org
Subject: Re: SD still better than CFS for 3d ?(was Re: 2.6.23-rc1)
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* Lee Revell <rlrevell@joe-job.com> wrote:

> On 7/31/07, Ingo Molnar <mingo@elte.hu> wrote:
> > Almost all of the Reiser3
> > code runs under the BKL, and the only other major kernel infrastructure
> > that has BKL dependencies is the TTY code.
> 
> Also NFS:
> 
> $ grep -rIi lock_kernel kernel-source/linux-2.6.17/fs/nfs/ | wc -l
> 94

yeah - but i never saw NFS cause really big BKL latencies. IIRC it uses 
the BKL mostly for archaic reasons, most of the NFS code is SMP-safe. 
Almost all of the reiser3 code runs under the BKL on the other hand.

	Ingo