Re: [RFC PATCH v3 11/11] mseal:add documentation

[Linus Torvalds]

On Tue, 12 Dec 2023 at 15:17, <jeffxu@xxxxxxxxxxxx> wrote:
> +
> +**types**: bit mask to specify the sealing types, they are:

I really want a real-life use-case for more than one bit of "don't modify".

IOW, when would you *ever* say "seal this area, but MADV_DONTNEED is ok"?

Or when would you *ever* say "seal this area, but mprotect()" is ok.

IOW, I want to know why we don't just do the BSD immutable thing, and
why we need this multi-level sealing thing.

               Linus