Messages in this thread | | | From | Linus Torvalds <> | Date | Sat, 30 Mar 2019 09:24:23 -0700 | Subject | Re: [PATCH v2 0/5] pid: add pidfd_open() |
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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.
Linus
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