lkml.org 
[lkml]   [2020]   [Feb]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: Confused about hlist_unhashed_lockless()
On Mon, 3 Feb 2020 at 16:45, David Laight <David.Laight@aculab.com> wrote:
>
> From: Eric Dumazet
> > Sent: 31 January 2020 18:53
> >
> > On Fri, Jan 31, 2020 at 10:48 AM Eric Dumazet <edumazet@google.com> wrote:
> > >
> >
> > > This is nice, now with have data_race()
> > >
> > > Remember these patches were sent 2 months ago, at a time we were
> > > trying to sort out things.
> > >
> > > data_race() was merged a few days ago.
> >
> > Well, actually data_race() is not there yet anyway.
>
> Shouldn't it be NO_DATA_RACE() ??

Various options were considered, and based on feedback from Linus,
decided 'data_race(..)' is the best option:
https://lore.kernel.org/linux-fsdevel/CAHk-=wg5CkOEF8DTez1Qu0XTEFw_oHhxN98bDnFqbY7HL5AB2g@mail.gmail.com/

It's meant to be as unobtrusive as possible, and an all-caps macro was
ruled out.

Second, the "NO_" prefix would be incorrect, since it'd be the
opposite of what it is. The macro is meant to document and mark a
deliberate data race.

Thanks,
-- Marco

\
 
 \ /
  Last update: 2020-02-03 16:56    [W:0.133 / U:8.180 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site