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

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Message-ID: <adatzs3u1sa.fsf@cisco.com>
Date:	Mon, 16 Jul 2007 20:50:13 -0700
From:	Roland Dreier <rdreier@...co.com>
To:	Joachim Fenkes <FENKES@...ibm.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

 > > 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?

 - R.
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