linux-kernel - Re: [PATCH 10/10] IB/ehca: Support large page MRs

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Message-ID: <OF38142F5F.0D12E609-ONC125731B.00239A1F-C125731B.0023C7C0@de.ibm.com>
Date:	Tue, 17 Jul 2007 08:29:54 +0200
From:	Joachim Fenkes <FENKES@...ibm.com>
To:	Roland Dreier <rdreier@...co.com>
Cc:	Christoph Raisch <raisch@...ibm.com>,
	"OF-General" <general@...ts.openfabrics.org>,
	Hoang-Nam Nguyen <hnguyen@...ibm.com>,
	LKML <linux-kernel@...r.kernel.org>,
	"LinuxPPC-Dev" <linuxppc-dev@...abs.org>,
	Roland Dreier <rolandd@...co.com>,
	Stefan Roscher <stefan.roscher@...ibm.com>
Subject: Re: [PATCH 10/10] IB/ehca: Support large page MRs

Roland Dreier <rdreier@...co.com> wrote on 17.07.2007 05:50:13:

>  > > Why the module parameter?  Is there any reason a user would want to
>  > > turn this off?  Or conversely, why is it off by default?
>  > 
>  > We're pretty confident this new feature works, but as with all new 
and 
>  > possibly experimental features, there are chances it might explode 
your 
>  > machine when activated. So, like with the scaling code, we want the 
user 
>  > to make the conscious decision of using this code instead of 
activating it 
>  > by default.
> 
> OK, I guess.  So can we expect to, say, change the default to turning
> it on for 2.6.24 and remove the option entirely (so it's always on) in
> 2.6.25?

Deal.

Joachim
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