Re: [PATCH 1/1] mm: introduce process_reap system call

[Suren Baghdasaryan]

On Wed, Jul 7, 2021 at 2:47 AM Florian Weimer <fweimer@xxxxxxxxxx> wrote:
>
> * Suren Baghdasaryan:
>
> > The API is as follows,
> >
> >           int process_reap(int pidfd, unsigned int flags);
> >
> >         DESCRIPTION
> >           The process_reap() system call is used to free the memory of a
> >           dying process.
> >
> >           The pidfd selects the process referred to by the PID file
> >           descriptor.
> >           (See pidofd_open(2) for further information)
> >
> >           The flags argument is reserved for future use; currently, this
> >           argument must be specified as 0.
> >
> >         RETURN VALUE
> >           On success, process_reap() returns 0. On error, -1 is returned
> >           and errno is set to indicate the error.
>
> I think the manual page should mention what it means for a process to be
> “dying”, and how to move a process to this state.

Thanks for the suggestion, Florian! Would replacing "dying process"
with "process which was sent a SIGKILL signal" be sufficient?

>
> Thanks,
> Florian
>