linux-kernel - Re: Treat disk space like memory space

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Message-ID: <20071123142817.GA10859@ucw.cz>
Date:	Fri, 23 Nov 2007 14:28:17 +0000
From:	Pavel Machek <pavel@....cz>
To:	Stefan Monnier <monnier@....umontreal.ca>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Treat disk space like memory space

Hi!

> So I'd like to be able to say "these areas of my file-system hold data
> that you can discard whenever you need space".  So I can freely fill up
> my disk with such irrelevant data, safe in the knowledge that if I ever
> need this disk space it'll be automatically reclaimed.
> 
> [ I realize this is probably better implemented outside of the kernel, but
>   it seems like it might be of interest here.  Please redirect me to
>   a more appropriate place if you can think of one (other than
>   /dev/null that is).  ]

Actually, you'll probably need fs hooks for reliable operation. And
yes, someone finally implementing this would be welcome :-).

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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