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SubjectRe: [PATCH 1/2] bitmap_parse: support 'all' semantics
On Wed, Apr 21, 2021 at 11:19:32AM -0400, Steven Rostedt wrote:
> On Tue, 20 Apr 2021 20:13:25 -0700
> Yury Norov <yury.norov@gmail.com> wrote:
>
> > @@ -76,6 +76,11 @@ to change, such as less cores in the CPU list, then N and any ranges using N
> > will also change. Use the same on a small 4 core system, and "16-N" becomes
> > "16-3" and now the same boot input will be flagged as invalid (start > end).
> >
> > +The special case-tolerant group name "all" has a meaning of selecting all CPUs,
> > +such that "isolcpus=all" is the equivalent of "isolcpus=0-N".
>
> I'm OK with the concept of this patch set, but really? That is a horrible
> example. One should NEVER set isolcpus to all!

How about "isolcpus=all:2/4"? ;-)

Thanx, Paul

> -- Steve
>
>
> > +
> > +The semantics of "N" and "all" is supported on a level of bitmaps and holds for
> > +all users of bitmap_parse().
> >

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