linux-kernel - Re: [PATCH] connector: add parent pid and tgid to coredump and exit events

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Message-Id: <20180330.125921.653839794312978457.davem@davemloft.net>
Date:   Fri, 30 Mar 2018 12:59:21 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     sstrogin@...co.com
Cc:     zbr@...emap.net, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, xe-linux-external@...co.com,
        jderehag@...mail.com, matt.helsley@...il.com,
        minipli@...glemail.com
Subject: Re: [PATCH] connector: add parent pid and tgid to coredump and
 exit events

From: Stefan Strogin <sstrogin@...co.com>
Date: Thu, 29 Mar 2018 17:12:47 +0300

> diff --git a/include/uapi/linux/cn_proc.h b/include/uapi/linux/cn_proc.h
> index 68ff25414700..db210625cee8 100644
> --- a/include/uapi/linux/cn_proc.h
> +++ b/include/uapi/linux/cn_proc.h
> @@ -116,12 +116,16 @@ struct proc_event {
>  		struct coredump_proc_event {
>  			__kernel_pid_t process_pid;
>  			__kernel_pid_t process_tgid;
> +			__kernel_pid_t parent_pid;
> +			__kernel_pid_t parent_tgid;
>  		} coredump;
>  
>  		struct exit_proc_event {
>  			__kernel_pid_t process_pid;
>  			__kernel_pid_t process_tgid;
>  			__u32 exit_code, exit_signal;
> +			__kernel_pid_t parent_pid;
> +			__kernel_pid_t parent_tgid;
>  		} exit;
>  
>  	} event_data;

I don't think you can add these members without breaking UAPI.