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

Florian Weimer
2021-07-07T09:47:04Z

* 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,
Florian