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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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