linux-kernel - Re: [PATCH 1/2] remove rcu_assign_pointer(NULL) penalty with type/macro safety

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Date:	Wed, 13 Feb 2008 16:09:00 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	David Miller <davem@...emloft.net>
Cc:	paulmck@...ux.vnet.ibm.com,
	"stephen.hemminger@...tta.com"@mail.vyatta.com,
	linux-kernel@...r.kernel.org, shemminger@...tta.com,
	netdev@...r.kernel.org, dipankar@...ibm.com, ego@...ibm.com,
	herbert@...dor.apana.org.au
Subject: Re: [PATCH 1/2] remove rcu_assign_pointer(NULL) penalty with
 type/macro safety

On Wed, 13 Feb 2008 15:57:38 -0800 (PST)
David Miller <davem@...emloft.net> wrote:

> From: Andrew Morton <akpm@...ux-foundation.org>
> Date: Wed, 13 Feb 2008 15:52:45 -0800
> 
> > On Wed, 13 Feb 2008 15:37:44 -0800
> > "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com> wrote:
> > 
> > > Ah.  It does take a bit to get fib_trie into one's build -- allyesconfig
> > > doesn't cut it.
> > 
> > This is not good.  The sole purpose of allmodconfig and allyesconfig is for
> > compilation and linkage coverage testing.  Hence we should aim to get as
> > much code as possible included in those cases.
> 
> Well, in this case there is a choice, either you use one routing
> lookup datastructure or the other.  It's not purposefully being hidden
> from the everything builds :-)

oic.  yes, that is a bit of a problem.  Oh well.

`make randconfig' seems to be able to enable CONFIG_IP_FIB_TRIE about one
time in eight ;)

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