Date: Tue, 21 Aug 2007 20:45:43 +0200
From: Andi Kleen <ak@suse.de>
To: Daniel Walker <dwalker@mvista.com>
Cc: Andi Kleen <ak@suse.de>, patches@x86-64.org, linux-kernel@vger.kernel.org,
       akpm@linux-foundation.org
Subject: Re: [PATCH] [12/58] x86_64: Add vDSO for x86-64 with gettimeofday/clock_gettime/getcpu
Message-ID: <20070821184543.GK32640@bingen.suse.de>
References: <200707191154.642492000@suse.de> <20070719095456.B996214E03@wotan.suse.de> <1187713502.7732.65.camel@imap.mvista.com>
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> In the -mm kernel there is some debugging that gets injected into the
> likely/unlikely macros .. If they get called from userspace it causes a

They should likely define a __likely()/__unlikely() then that doesn't
do this.

> hang .. We might want to add some new set of macros to specifically
> denote that they are called from userspace, not just likely/unlikely but
> all the macros so we don't get mixed usage ..

and add a hunk to change the vDSO code. Note that i386 is not the 
only architecture that has such code.

-Andi
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