linux-kernel - Re: [PATCH] mm: fix page_mkclean_one (was: 2.6.19 file content corruption on ext3)

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Message-Id: <1166653234.30008.4.camel@twins>
Date:	Wed, 20 Dec 2006 23:20:34 +0100
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Linus Torvalds <torvalds@...l.org>
Cc:	Martin Michlmayr <tbm@...ius.com>, Hugh Dickins <hugh@...itas.com>,
	Nick Piggin <nickpiggin@...oo.com.au>,
	Arjan van de Ven <arjan@...radead.org>,
	Andrei Popa <andrei.popa@...eo.ro>,
	Andrew Morton <akpm@...l.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Florian Weimer <fw@...eb.enyo.de>,
	Marc Haber <mh+linux-kernel@...schlus.de>,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	Heiko Carstens <heiko.carstens@...ibm.com>,
	Arnd Bergmann <arnd.bergmann@...ibm.com>,
	gordonfarquharson@...il.com
Subject: Re: [PATCH] mm: fix page_mkclean_one (was: 2.6.19 file content
	corruption on ext3)

On Wed, 2006-12-20 at 23:15 +0100, Peter Zijlstra wrote:
> I think this is also needed:

See also:
  http://marc.theaimsgroup.com/?l=linux-kernel&m=116603599904278&w=2

> ---
>  mm/truncate.c |    7 +------
>  1 file changed, 1 insertion(+), 6 deletions(-)
> 
> Index: linux-2.6/mm/truncate.c
> ===================================================================
> --- linux-2.6.orig/mm/truncate.c
> +++ linux-2.6/mm/truncate.c
> @@ -320,19 +320,14 @@ invalidate_complete_page2(struct address
>  	if (PagePrivate(page) && !try_to_release_page(page, GFP_KERNEL))
>  		return 0;
>  
> +	cancel_dirty_page(page, PAGE_CACHE_SIZE);
>  	lock_page_ref_irq(page);
> -	if (PageDirty(page))
> -		goto failed;
> -
>  	BUG_ON(PagePrivate(page));
>  	__remove_from_page_cache(page);
>  	unlock_page_ref_irq(page);
>  	ClearPageUptodate(page);
>  	page_cache_release(page);	/* pagecache ref */
>  	return 1;
> -failed:
> -	unlock_page_ref_irq(page);
> -	return 0;
>  }
>  
>  /**
> 
> 
> -
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