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From: Rusty Russell <rusty@rustcorp.com.au>
To: Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH] Introduce down_nowait()
Date: Wed, 21 May 2008 22:09:16 +1000
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Cc: Christoph Hellwig <hch@infradead.org>,
       Linus Torvalds <torvalds@linux-foundation.org>,
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       Matthew Wilcox <matthew@wil.cx>
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On Wednesday 21 May 2008 18:19:26 Andrew Morton wrote:
> The number of down_trylocks in rc3 is 51 and the number of
> down_trylocks and down_nowaits in -mm is 47.  So progress is pretty
> glacial.
...
> Anyway, yes, I agree that the whole effort is a bit dubious and that
> the time could be better directed to semaphore eliminations.

It is deeply annoying, even embarrassing, and trivial to fix.  And as you say, 
process is glacial...

Cheers,
Rusty.