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

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Message-ID: <75b66ecd0711151624n476d2e83xd1acbb23a5bffcf0@mail.gmail.com>
Date:	Thu, 15 Nov 2007 19:24:57 -0500
From:	"Lee Revell" <rlrevell@...-job.com>
To:	"Stefan Monnier" <monnier@....umontreal.ca>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Treat disk space like memory space

On Nov 15, 2007 5:24 PM, Stefan Monnier <monnier@....umontreal.ca> wrote:
> [ 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).  ]

It would require some kernel support to reclaim the storage from the
caching application rather than returning -ENOSPC when a "normal" app
needs the storage.  Even if you make the caching app free the space by
itself you need a kernel mechanism to signal it when this happens.

Lee
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