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SubjectRe: [PATCH v2 0/5] pid: add pidfd_open()
On Sat, Mar 30, 2019 at 09:24:23AM -0700, Linus Torvalds wrote:
> On Sat, Mar 30, 2019 at 9:19 AM Christian Brauner <christian@brauner.io> wrote:
> >
> > From pure API perspective that's all I care about: independence of procfs.
> > Once we have pidfd_open() we can cleanly signal threads etc.
>
> But "independence from procfs" means that you damn well don't then do
> "oh, now I have a pidfd, I want to turn it into a /proc fd and then
> munge around there".
>
> So I'm literally saying that it had better really *be* independent
> from /proc. It is the standalone version, but it's most definitely
> also the version that doesn't then give you secret access to /proc.
>
> And it weorries me a lot that people are trying to play these kinds of
> games. I'm just seeing some android patch that adds this horror and
> then starts using it.

The original need for this conversion thing came from Android indeed. I
won't go forward with any such patches.

Christian

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