From: Andrew Morton <akpm@linux-foundation.org>
To: Miklos Szeredi <miklos@szeredi.hu>
Cc: a.p.zijlstra@chello.nl, linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [patch resend v4] update ctime and mtime for mmaped write
Date: Tue, 27 Mar 2007 00:18:34 -0800 [thread overview]
Message-ID: <20070327001834.04dc375e.akpm@linux-foundation.org> (raw)
In-Reply-To: <E1HW6eb-0003WX-00@dorka.pomaz.szeredi.hu>
On Tue, 27 Mar 2007 10:03:41 +0200 Miklos Szeredi <miklos@szeredi.hu> wrote:
> But Peter Staubach says a RH custumer has files written thorugh mmap,
> which are not being backed up.
Yes, I expect the backup problem is the major real-world hurt arising from
this bug.
But I expect we could adequately plug that problem at munmap()-time. Or,
better, do_wp_page(). As I said - half-assed.
It's a question if whether the backup problem is the only thing which is hurting
in the real-world, or if people have other problems.
(In fact, what's wrong with doing it in do_wp_page()? The timestamp could
be up to 30 seconds too early, but that's heaps better than what we have
now..)
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next prev parent reply other threads:[~2007-03-27 8:18 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-25 21:10 Miklos Szeredi, Miklos Szeredi
2007-03-26 21:00 ` Andrew Morton
2007-03-26 21:10 ` Matt Mackall
2007-03-26 22:25 ` Andrew Morton
2007-03-26 21:43 ` Miklos Szeredi
2007-03-26 22:31 ` Andrew Morton
2007-03-27 6:55 ` Miklos Szeredi
2007-03-27 7:22 ` Andrew Morton
2007-03-27 7:36 ` Miklos Szeredi
2007-03-27 7:49 ` Andrew Morton
2007-03-27 8:03 ` Miklos Szeredi
2007-03-27 8:18 ` Andrew Morton [this message]
2007-03-27 8:28 ` Miklos Szeredi
2007-03-27 8:51 ` Andrew Morton
2007-03-27 9:23 ` Miklos Szeredi
2007-03-27 17:52 ` Andrew Morton
2007-03-27 18:29 ` Miklos Szeredi
[not found] <20070327123422.d0bbc064.akpm@linux-foundation.org>
2007-03-27 20:09 ` linux
2007-03-27 20:31 ` Miklos Szeredi
2007-03-28 1:48 ` linux
2007-03-28 7:58 ` Nick Piggin
2007-03-28 9:50 ` linux
2007-03-29 4:59 ` Nick Piggin
2007-03-27 20:47 ` Andrew Morton
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