lkml.org 
[lkml]   [2020]   [Feb]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v3 1/5] tools/memory-model: Add an exception for limitations on _unless() family
On Thu, 27 Feb 2020, Luc Maranget wrote:

> > On Thu, 27 Feb 2020, Boqun Feng wrote:
> >
> > > According to Luc, atomic_add_unless() is directly provided by herd7,
> > > therefore it can be used in litmus tests. So change the limitation
> > > section in README to unlimit the use of atomic_add_unless().
> >
> > Is this really true? Why does herd treat atomic_add_unless() different
> > from all the other atomic RMS ops? All the other ones we support do
> > have entries in linux-kernel.def.
>
> I think this to be true :)
>
> As far as I remember atomic_add_unless is quite different fron other atomic
> RMW ops and called for a specific all-OCaml implementation, without an
> entry in linux-kernel.def. As to atomic_long_add_unless, I was not aware
> of its existence.

Can you explain what is so different about atomic_add_unless?

Alan

\
 
 \ /
  Last update: 2020-02-27 19:17    [W:0.035 / U:0.496 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site