linux-kernel - Re: [PATCH -v6 2/2] Updating ctime and mtime for memory-mapped files

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Date:	Fri, 18 Jan 2008 23:25:19 -0500
From:	Rik van Riel <riel@...hat.com>
To:	Matt Mackall <mpm@...enic.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Ingo Oeser <ioe-lkml@...eria.de>,
	Miklos Szeredi <miklos@...redi.hu>, peterz@...radead.org,
	salikhmetov@...il.com, linux-mm@...ck.org, jakob@...hought.net,
	linux-kernel@...r.kernel.org, valdis.kletnieks@...edu, ksm@...dk,
	staubach@...hat.com, jesper.juhl@...il.com,
	akpm@...ux-foundation.org, protasnb@...il.com,
	r.e.wolff@...wizard.nl, hidave.darkstar@...il.com,
	hch@...radead.org
Subject: Re: [PATCH -v6 2/2] Updating ctime and mtime for memory-mapped
 files

On Fri, 18 Jan 2008 18:50:03 -0600
Matt Mackall <mpm@...enic.com> wrote:
> On Fri, 2008-01-18 at 17:54 -0500, Rik van Riel wrote:

> > Backup programs not seeing an updated mtime is a really big deal.
> 
> And that's fixed with the 4-line approach.
> 
> Reminds me, I've got a patch here for addressing that problem with loop mounts:
> 
> Writes to loop should update the mtime of the underlying file.
> 
> Signed-off-by: Matt Mackall <mpm@...enic.com>

Acked-by: Rik van Riel <riel@...hat.com>

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