Shared/exclusive (rw) locks

[ngl]

That means, freebsd stable has no spin rwlocks ?

Thanks,

Nik
----- Original Message ----- 
From: "Tim Robbins" <tjr at freebsd.org>
To: "ngl" <ngl at ur.ru>
Cc: <freebsd-stable at freebsd.org>
Sent: Tuesday, July 06, 2004 11:41 AM
Subject: Re: Shared/exclusive (rw) locks


> On Tue, Jul 06, 2004 at 11:05:35AM +0600, ngl wrote:
> > Thanks
> > 
> > I've found it too.
> > 
> > But
> > /*
> >  * The general lock structure.  Provides for multiple shared locks,
> >  * upgrading from shared to exclusive, and sleeping until the lock
> >  * can be gained. The simple locks are defined in <machine/param.h>.
> >  */
> > 
> > What means sleeping ? I need spinlock. 
> > I cannot allow to fall asleep to kernel thread.
> 
> You'll need to use simplelocks or spls then, as appropriate to the
> situation.
> 
> 
> Tim
> 
> P.S.: This probably isn't the right mailing list for this discussion.