Re: [PATCH 00/11] Task watchers: Introduction

[Andrew Morton]

On Tue, 13 Jun 2006 16:52:01 -0700
Matt Helsley <matthltc@xxxxxxxxxx> wrote:

> Task watchers is a notifier chain that sends notifications to registered
> callers whenever a task forks, execs, changes its [re][ug]id, or exits.

Seems a reasonable objective - it'll certainly curtail (indeed, reverse)
the ongoing proliferation of little subsystem-specific hooks all over the
core code, will allow us to remove some #includes from core code and should
permit some more things to be loaded as modules.

But I do wonder if it would have been better to have separate chains for
each of WATCH_TASK_INIT, WATCH_TASK_EXEC, WATCH_TASK_UID, WATCH_TASK_GID,
WATCH_TASK_EXIT.  That would reduce the number of elements which need to be
traversed at each event and would eliminate the need for demultiplexing at
each handler.

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