linux-kernel - Re: init's children list is long and slows reaping children.

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Message-ID: <Pine.LNX.4.64.0704061542180.6730@woody.linux-foundation.org>
Date:	Fri, 6 Apr 2007 15:46:39 -0700 (PDT)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Davide Libenzi <davidel@...ilserver.org>
cc:	Ingo Molnar <mingo@...e.hu>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Oleg Nesterov <oleg@...sign.ru>, Robin Holt <holt@....com>,
	Chris Snook <csnook@...hat.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Jack Steiner <steiner@...ricas.sgi.com>
Subject: Re: init's children list is long and slows reaping children.



On Fri, 6 Apr 2007, Davide Libenzi wrote:

> On Fri, 6 Apr 2007, Linus Torvalds wrote:
> > 
> > I don't really see the point. It's not even *true*. A "process" includes 
> > more than the shared signal-handling - it would include files and fs etc 
> > too.
> > 
> > So it's actually *more* correct to call it the shared signal state than it 
> > would be to call it "process" state.
> 
> But "signal" has *nothing* to do with what the structure store nowadays, 
> really. It's a pool of "things" that are not Linux task specific.

You're ignoring reality. It has more to do with signals than with 
processes. Look at *all* the fields in the top half of the structure, up 
to (and including) the "tty" field. They're *all* about signal semantics 
in one form or another (whether it's directly about shared signal 
behaviour, or indirectly about *sources* of signals like process control 
or timers).

And renaming it really has no upsides, even *if* you had a point, which 
you don't.

			Linus
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