Re: [patch 05/10] PI-futex: rt-mutex core

[Ingo Molnar]

* Andrew Morton <akpm@xxxxxxxx> wrote:

> Ingo Molnar <mingo@xxxxxxx> wrote:
> >
> > --- linux-pi-futex.mm.q.orig/init/Kconfig
> >  +++ linux-pi-futex.mm.q/init/Kconfig
> >  @@ -361,9 +361,14 @@ config BASE_FULL
> >   	  kernel data structures. This saves memory on small machines,
> >   	  but may reduce performance.
> >   
> >  +config RT_MUTEXES
> >  +	boolean
> >  +	select PLIST
> >  +
> >   config FUTEX
> >   	bool "Enable futex support" if EMBEDDED
> >   	default y
> >  +	select RT_MUTEXES
> >   	help
> 
> We can't turn these things off unless we also turn off futexes.  There 
> goes another 8.7 kbytes...

do we want to make the futex API so splintered via .config? 8.7 kbytes 
on SMP boxes, a bit less on UP boxes. RAM-starving embedded platforms 
will want to turn off all things futexes i guess.

	Ingo
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