From: David Newall <davidn@davidnewall.com>
To: Hugh Dickins <hugh@veritas.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
Peter Cordes <peter@cordes.ca>,
linux-kernel@vger.kernel.org,
Christoph Hellwig <hch@infradead.org>,
linux-mm <linux-mm@kvack.org>
Subject: Re: no way to swapoff a deleted swap file?
Date: Fri, 17 Oct 2008 16:58:08 +1030 [thread overview]
Message-ID: <48F83078.8020408@davidnewall.com> (raw)
In-Reply-To: <Pine.LNX.4.64.0810162313570.26758@blonde.site>
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.
WARNING: multiple messages have this Message-ID (diff)
From: David Newall <davidn@davidnewall.com>
To: Hugh Dickins <hugh@veritas.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
Peter Cordes <peter@cordes.ca>,
linux-kernel@vger.kernel.org,
Christoph Hellwig <hch@infradead.org>,
linux-mm <linux-mm@kvack.org>
Subject: Re: no way to swapoff a deleted swap file?
Date: Fri, 17 Oct 2008 16:58:08 +1030 [thread overview]
Message-ID: <48F83078.8020408@davidnewall.com> (raw)
In-Reply-To: <Pine.LNX.4.64.0810162313570.26758@blonde.site>
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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next prev parent reply other threads:[~2008-10-17 6:28 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-15 20:21 no way to swapoff a deleted swap file? Peter Cordes
2008-10-16 8:28 ` Peter Zijlstra
2008-10-16 8:28 ` Peter Zijlstra
2008-10-16 22:38 ` Hugh Dickins
2008-10-16 22:38 ` Hugh Dickins
2008-10-17 6:28 ` David Newall [this message]
2008-10-17 6:28 ` David Newall
[not found] <bnlDw-5vQ-7@gated-at.bofh.it>
[not found] ` <bnwpg-2EA-17@gated-at.bofh.it>
[not found] ` <bnJFK-3bu-7@gated-at.bofh.it>
2008-10-16 23:43 ` Bodo Eggert
2008-10-16 23:43 ` Bodo Eggert
2008-10-16 23:43 ` Bodo Eggert
[not found] ` <bnR0A-4kq-1@gated-at.bofh.it>
2008-10-17 8:20 ` Bodo Eggert
2008-10-17 8:20 ` Bodo Eggert
2008-10-17 8:20 ` Bodo Eggert
2008-10-17 12:17 ` Hugh Dickins
2008-10-17 12:17 ` Hugh Dickins
2008-10-17 12:36 ` David Newall
2008-10-17 12:36 ` David Newall
2008-10-17 22:42 ` Bodo Eggert
2008-10-17 22:42 ` Bodo Eggert
2008-10-18 0:31 ` Peter Cordes
2008-10-18 0:31 ` Peter Cordes
2008-10-18 5:18 ` Willy Tarreau
2008-10-18 5:18 ` Willy Tarreau
2008-10-18 20:45 ` Hugh Dickins
2008-10-18 20:45 ` Hugh Dickins
2008-10-18 20:49 ` Christoph Hellwig
2008-10-18 20:49 ` Christoph Hellwig
2008-10-18 20:56 ` Willy Tarreau
2008-10-18 20:56 ` Willy Tarreau
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