linux-kernel - Re: [PATCH -v8 2/4] Update ctime and mtime for memory-mapped files

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Date:	Thu, 24 Jan 2008 02:14:16 +0300
From:	"Anton Salikhmetov" <salikhmetov@...il.com>
To:	"Linus Torvalds" <torvalds@...ux-foundation.org>
Cc:	linux-mm@...ck.org, jakob@...hought.net,
	linux-kernel@...r.kernel.org, valdis.kletnieks@...edu,
	riel@...hat.com, ksm@...dk, staubach@...hat.com,
	jesper.juhl@...il.com, a.p.zijlstra@...llo.nl,
	akpm@...ux-foundation.org, protasnb@...il.com, miklos@...redi.hu,
	r.e.wolff@...wizard.nl, hidave.darkstar@...il.com,
	hch@...radead.org
Subject: Re: [PATCH -v8 2/4] Update ctime and mtime for memory-mapped files

2008/1/23, Linus Torvalds <torvalds@...ux-foundation.org>:
>
>
> On Wed, 23 Jan 2008, Anton Salikhmetov wrote:
> >
> > Update ctime and mtime for memory-mapped files at a write access on
> > a present, read-only PTE, as well as at a write on a non-present PTE.
>
> Ok, this one I'm applying. I agree that it leaves MS_ASYNC not updating
> the file until the next sync actually happens, but I can't really bring
> myself to care at least for an imminent 2.6.24 thing. The file times are
> actually "correct" in the sense that they will now match when the IO is
> done, and my man-page says that MS_ASYNC "schedules the io to be done".
>
> And I think this is better than we have now, and I don't think this part
> is somethign that anybody really disagrees with.
>
> We can (and should) keep the MS_ASYNC issue open.

Thank you!

I have closed the bug #2645, because this patch solves the issue
originally reported.

>
>                 Linus
>
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