[PATCH] rtems: rtems_interrupt_enable/flash/disable()

[Sebastian Huber]

----- Gedare Bloom <gedare at gwu.edu> schrieb:
> I see. It provides the mutual exclusion for (SMP) applications that
> rely on interrupt_disable/enable locks?
> 
> I guess we can never get rid of it as long as we allow for users to
> call isr_disable/enable?

Yes, an alternative is to remove the rtems_interrupt_disable/enable/flash() on SMP configurations.  A pure interrupt disable is not really helpful.

> 
> On Fri, Jun 12, 2015 at 9:59 AM, Sebastian Huber
> <sebastian.huber at embedded-brains.de> wrote:
> > On 12/06/15 15:56, Gedare Bloom wrote:
> >>
> >> I'm not a huge fan of the name, although cute, I want to think some
> >> more on an alternative, maybe Global Lock. What is the relationship of
> >> The Big Hammer to the Giant Lock?
> >
> >
> > They target different scopes.  They have in common that they are locks that
> > nobody wants.  The Giant lock is a flaw in the RTEMS implementation. The big
> > hammer is a flaw in the application.
> >
> > --
> > Sebastian Huber, embedded brains GmbH
> >
> > Address : Dornierstr. 4, D-82178 Puchheim, Germany
> > Phone   : +49 89 189 47 41-16
> > Fax     : +49 89 189 47 41-09
> > E-Mail  : sebastian.huber at embedded-brains.de
> > PGP     : Public key available on request.
> >
> > Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG.
> >
> >
> > _______________________________________________
> > devel mailing list
> > devel at rtems.org
> > http://lists.rtems.org/mailman/listinfo/devel

-- 
Sebastian Huber, embedded brains GmbH

Address : Dornierstr. 4, D-82178 Puchheim, Germany
Phone   : +49 89 189 47 41-16
Fax     : +49 89 189 47 41-09
E-Mail  : sebastian.huber at embedded-brains.de
PGP     : Public key available on request.

Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG.