Date: Thu, 21 Apr 2005 13:12:27 -0700
From: Chris Wright <chrisw@osdl.org>
To: Timur Tabi <timur.tabi@ammasso.com>
Cc: Andy Isaacson <adi@hexapodia.org>, Troy Benjegerdes <hozer@hozed.org>,
       Bernhard Fischer <blist@aon.at>, Arjan van de Ven <arjan@infradead.org>,
       linux-kernel@vger.kernel.org, openib-general@openib.org
Subject: Re: [openib-general] Re: [PATCH][RFC][0/4] InfiniBand userspace verbs implementation
Message-ID: <20050421201227.GI23013@shell0.pdx.osdl.net>
References: <20050421173821.GA13312@hexapodia.org> <4267F367.3090508@ammasso.com> <20050421195641.GB13312@hexapodia.org> <4268080E.3000303@ammasso.com>
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* Timur Tabi (timur.tabi@ammasso.com) wrote:
> Andy Isaacson wrote:
> >Do you guys simply raise RLIMIT_MEMLOCK to allow apps to lock their
> >pages?  Or are you doing something more nasty?
> 
> A little more nasty.  I raise RLIMIT_MEMLOCK in the driver to "unlimited" 
> and also set cap_raise(IPC_LOCK).  I do this because I need to support all 
> 2.4 and 2.6 kernel versions with the same driver, but only 2.6.10 and later 
> have any support for non-root mlock().

FYI, that will not work on all 2.6 kernels.  Specifically anything that's
not using capabilities.

thanks,
-chris
-- 
Linux Security Modules     http://lsm.immunix.org     http://lsm.bkbits.net
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