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    SubjectRe: [PATCH 2/3] Remove BKL from fs/locks.c
    On Sunday 11 July 2010 00:01:10 Christoph Hellwig wrote:
    > On Sat, Jul 10, 2010 at 11:51:40PM +0200, Arnd Bergmann wrote:
    > > From: Matthew Wilcox <>
    > >
    > > I've taken a patch originally written by Matthew Wilcox and
    > > ported it to the current version. Unfortunately, the change
    > > conflicts with the use of lockd, which still heavily uses
    > > the big kernel lock.
    > >
    > > As a workaround, I've made the behaviour configurable,
    > > it either uses the BKL when it's enabled or a spinlock
    > > when the BKL (and consequently nfs and lockd) are
    > > disabled.
    > Defintively not something we want in mainline. But keep poking
    > the nfs guys to sort the lockd mess out for real.

    Yes, that was the idea. This is the last patch I need to run
    all of my machines without the BKL, so I spent a few hours
    looking at how to fix lockd. When I couldn't figure it out,
    I decided to do an evil hack that happens to work, in order
    to build pressure.


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