linux-kernel - Re: [PATCH 2/2] updating ctime and mtime at syncing

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Message-Id: <E1JEPfG-0007Vi-K3@pomaz-ex.szeredi.hu>
Date:	Mon, 14 Jan 2008 14:47:46 +0100
From:	Miklos Szeredi <miklos@...redi.hu>
To:	miklos@...redi.hu
CC:	peterz@...radead.org, salikhmetov@...il.com, 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,
	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	protasnb@...il.com, nickpiggin@...oo.com.au
Subject: Re: [PATCH 2/2] updating ctime and mtime at syncing

> > More fun, it would require marking them RO but leaving the dirty bit
> > set, because this ext3 fudge where we confuse the page dirty state - or
> > did that get fixed?
> 
> That got fixed by Nick, I think.
> 
> The alternative to marking pages RO, is to walk the PTEs in MS_ASYNC,
> note the dirty bit and mark pages clean.  But it's possibly even more
                              ^^^^
			         ptes, I mean
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