Re: [PATCH RFC] mm: Rename SLAB_DESTROY_BY_RCU to SLAB_TYPESAFE_BY_RCU
From: Eric Dumazet
Date: Wed Jan 25 2017 - 12:04:54 EST
On Wed, 2017-01-25 at 10:45 -0600, Christoph Lameter wrote:
> On Sun, 22 Jan 2017, Paul E. McKenney wrote:
> > On Wed, Jan 18, 2017 at 06:00:24PM -0600, Christoph Lameter wrote:
> > > On Wed, 18 Jan 2017, Paul E. McKenney wrote:
> > >
> > > > Actually, slab is using RCU to provide type safety to those slab users
> > > > who request it.
> > >
> > > Typesafety is a side effect. The main idea here is that the object can
> > > still be accessed in RCU sections after another processor frees the
> > > object. We guarantee that the object is not freed but it may be reused
> > > for another object within the RCU period.
> > >
> > > Can we have a name that expresses all of that properly?
> > But of course!!! "Type safety". http://wiki.c2.com/?TypeSafe
> Well that does not convey the idea that RCU is involved here.
Not clear why we need to change this very fine name ?
SLAB_DESTROY_BY_RCU was only used by few of us, we know damn well what
Consider we wont be able to change it in various web pages / archives /