On Mon, Mar 13, 2023 at 03:04:10AM +0000, Edgecombe, Rick P wrote:

This is how the other arch_prctl()s handle it (if they do handle it,
some don't). So I would think it would be nice to keep all the logic
the same.

I guess the flag might work based on the assumption that if the task is
being ptraced, the arch_prctl() couldn't be coming from anywhere else.
Maybe it should get a nicely named helper that they could all use and
whatever best logic could be commented.

Would this maybe be better as a future cleanup that did the change for
them all?

Yeah, I'm just being overly paranoid.

Because if there's another way to unlock that feature, then this whole
"overhead" we're doing is for nothing.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette