Re: [PATCH v2 0/5] pid: add pidfd_open()

From: Linus Torvalds
Date: Sat Mar 30 2019 - 12:09:50 EST


On Fri, Mar 29, 2019 at 8:54 AM Christian Brauner <christian@xxxxxxxxxx> wrote:
>
> /* Introduction */
> This adds the pidfd_open() syscall.
> pidfd_open() allows to retrieve file descriptors for a given pid. This
> includes both file descriptors for processes and file descriptors for
> threads.

I'm ok with the pidfd_open() call to just get a pidfd, but that
"pidfd_to_profs()" needs to go away.

If you want to open the /proc/<pid>/status file, then just do that.
This whole "do one and convert to the other" needs to die. No, no, no.

Linus