linux-kernel - Re: no way to swapoff a deleted swap file?

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Message-ID: <48F83078.8020408@davidnewall.com>
Date:	Fri, 17 Oct 2008 16:58:08 +1030
From:	David Newall <davidn@...idnewall.com>
To:	Hugh Dickins <hugh@...itas.com>
CC:	Peter Zijlstra <peterz@...radead.org>,
	Peter Cordes <peter@...des.ca>, linux-kernel@...r.kernel.org,
	Christoph Hellwig <hch@...radead.org>,
	linux-mm <linux-mm@...ck.org>
Subject: Re: no way to swapoff a deleted swap file?

Hugh Dickins wrote:
> On Thu, 16 Oct 2008, Peter Zijlstra wrote:
>   
>> On Wed, 2008-10-15 at 17:21 -0300, Peter Cordes wrote:
>>     
>>> I unlinked a swapfile without realizing I was still swapping on it.
>>>       
>> I see your problem and it makes sense to look for a nice solution.
>>     
>
> although I'll willingly admit it's a
> lacuna, I don't think it's one worth bloating the kernel for.

Me too.  The kernel shouldn't protect the administrator against all
possible mistakes; and this mistake is one of them.  Besides, who's to
say it's always a mistake?  Somebody might want their swap file to have
zero links.


Do nothing.
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