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SubjectRe: [PATCH -tip 0/3] expedited "big hammer" RCU grace periods
On Thu, Jun 25, 2009 at 11:59:53AM +0200, Ingo Molnar wrote:
>
> * Paul E. McKenney <paulmck@linux.vnet.ibm.com> wrote:
>
> > On Wed, Jun 24, 2009 at 08:03:03PM +0200, Ingo Molnar wrote:
> > >
> > > * Paul E. McKenney <paulmck@linux.vnet.ibm.com> wrote:
> > >
> > > > include/linux/rcuclassic.h | 15 ++-
> > >
> > > heh, we dont have this file anymore ... as of today, right? :)
> >
> > Ah, I was assuming that expedited RCU would happen before removal
> > of Classic RCU.
>
> Our general preference is to zap code.

Actually worked out nicely in this case -- the fact that Classic RCU
is no longer in -tip meant that I could dump 25% of my test cases for
expedited RCU. ;-)

I will be posting the updated patch shortly.

> /me stares at:
>
> $ git diff --stat -M v2.6.30..v2.6.31-rc1 | tail -1
> 7743 files changed, 782278 insertions(+), 403162 deletions(-)
>
> /me corrects himself:
>
> Okay, so the zapping of code is the divine guiding principle we've
> been following for 15 years. Ending up with a kernel that is 11
> million lines of code is a small imperfection of mankind and is to
> be fixed.

;-) ;-) ;-)

I guess that if 11 million lines of code is a small imperfection of
mankind, we can only be thankful that we are not tasked with dealing
with the large imperfections. ;-)

Thanx, Paul


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