[openib-general] Re: [PATCH][RFC][0/4] InfiniBand userspace verbs implementation

Chris Wright chrisw at osdl.org
Thu Apr 21 13:12:27 PDT 2005


* Timur Tabi (timur.tabi at 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
-- 
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