linux-kernel - Re: task_diag: add a new interface to get information about processes

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Message-ID: <20160504132245.1d04c131@xeon-e3>
Date:	Wed, 4 May 2016 13:22:45 -0700
From:	Stephen Hemminger <stephen@...workplumber.org>
To:	Andrey Vagin <avagin@...nvz.org>
Cc:	linux-kernel@...r.kernel.org, David Miller <davem@...emloft.net>
Subject: Re: task_diag: add a new interface to get information about
 processes

I understand how reading /proc or /sys can be a bottleneck, but this
proposed method using a system call is the wrong way to do this.

Why not use netlink like other systems do which allows a message
based response which allows for future changes (no fixed datastructures),
and is message based.

Generic netlink has already been used by several other subsystems.