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Re: [dm-devel] [PATCH] dm: use cpu_relax when busy waiting for condition

From: Alasdair G Kergon <agk redhat com>
To: Mike Snitzer <snitzer redhat com>
Cc: dm-devel redhat com
Subject: Re: [dm-devel] [PATCH] dm: use cpu_relax when busy waiting for condition
Date: Mon, 27 Jun 2011 11:22:07 +0100

On Thu, Sep 09, 2010 at 06:07:16PM -0400, Mike Snitzer wrote:
> Switch busy loops from using msleep(1) to cpu_relax().

I'd rather we didn't have any of these, but I think these should stay
as msleep.  (Would cpu_relax() even work in every case?)

Alasdair

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