Re: [PATCH 2/3] Remove BKL from fs/locks.c

[Christoph Hellwig]

On Sat, Jul 10, 2010 at 11:51:40PM +0200, Arnd Bergmann wrote:
> From: Matthew Wilcox <willy@xxxxxxxxxxxxxxx>
> 
> 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.

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