Re: [PATCH 1/2] bitmap_parse: support 'all' semantics

[Steven Rostedt]

On Tue, 20 Apr 2021 20:13:25 -0700
Yury Norov <yury.norov@xxxxxxxxx> 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!

-- Steve


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