> > > sys_sem_create()
> > > sys_sem_destroy()
> >
> > There is no create and destroy (init is purely userspace). There is
> > "this is a semapore: up it". This is a feature.
>
> No, that's a bug.
>
> You have to realize that there are architectures that need special
> initialization and page allocation for semaphores: they need special flags
> in the TLB for "careful access", for example (sometimes the careful access
> ends up being non-cached).
Your user part is arch-dependend, anyway. So it can just mmap(..., O_CAREFULL).
Pavel
-- Philips Velo 1: 1"x4"x8", 300gram, 60, 12MB, 40bogomips, linux, mutt, details at http://atrey.karlin.mff.cuni.cz/~pavel/velo/index.html.- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/