linux-kernel - Re: [RFD] new syscalls: suspend_other/resume

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Message-ID: <20070907115333.GA3901@ucw.cz>
Date:	Fri, 7 Sep 2007 11:53:34 +0000
From:	Pavel Machek <pavel@....cz>
To:	Ingo Oeser <ioe-lkml@...eria.de>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [RFD] new syscalls: suspend_other/resume_other?

On Sun 2007-09-02 17:04:21, Ingo Oeser wrote:
> Hi there,
> 
> at the moment implementing a mark and sweep garbage collection 
> subsystem is quite a hack, because you always have to use up
> some signals for suspend/resume all threads to implement this.
> 
> For runtime environments (like D system libraries or JVMs) this is 
> a hack, since you take away flexibility from the application.
> 
> A possible solution would be a syscall or a PTRACE extension
> to realize the suspend/resume. I best describe the possible
> syscall manpages here, so you get an idea.
> 
> NAME 
> 	suspend_other - suspends execution of all but the calling thread

aha, this should really be named stop_other / cont_other, suspend is
already taken :-).
							Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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